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1

X-ray Science Division: Groups  

NLE Websites -- All DOE Office Websites (Extended Search)

Division: Groups Division: Groups Atomic, Molecular and Optical Physics (AMO) Primary Contact: Stephen Southworth Work focuses on understanding how strong optical and x-ray fields interact with matter, with an emphasis on photonic control of electronic, atomic and molecular motion. Chemical and Materials Science (CMS) Primary Contact: Randy Winans Research Disciplines: Chemistry, Materials Science Detectors (DET) Primary Contact: Antonino Miceli GMCA Structural Biology Facility (MX) Primary Contact: Robert Fischetti Research Disciplines: Biology, Life Sciences Imaging (IMG) Primary Contact: Francesco DeCarlo Research Disciplines: Materials Science, Biology, Physics, Life Sciences Inelastic X-ray & Nuclear Resonant Scattering (IXN) Primary Contact: Thomas Gog Research Disciplines: Condensed Matter Physics, Geophysics, Materials

2

X-ray Science Division: Mission and Goals | Advanced Photon Source  

NLE Websites -- All DOE Office Websites (Extended Search)

X-ray Science Division: Mission and Goals The mission of the X-ray Science Division (XSD) is to enable and perform world class research using x-rays. This mission is accomplished...

3

Linda Young Named to Head X-ray Science Division  

NLE Websites -- All DOE Office Websites (Extended Search)

to the APS Hard X-ray Nanoprobe Earns an R&D 100 Award Winans of XSD Elected to ACS Fellowship Gluskin of Photon Sciences named Argonne Distinguished Fellow UChicago...

4

Staff at sector 30, inelastic x-ray scattering  

NLE Websites -- All DOE Office Websites (Extended Search)

Status and Schedule Safety and Training Divisions APS Engineering Support Division AES Groups Accelerator Systems Division ASD Groups X-ray Science Division XSD Groups...

5

Frontiers in X-Ray Science  

Science Conference Proceedings (OSTI)

The year 2010 marked the fiftieth anniversary of the optical laser and the first anniversary of the world's first hard x-ray free-electron laser, the Linac Coherent Light Source (LCLS) at SLAC. This exciting, new accelerator-based source of x-rays provides peak brilliances roughly a billion times greater than currently available from synchrotron sources such as the Advanced Photon Source at Argonne, and thus explores a qualitatively different parameter space. This talk will describe the first experiments at the LCLS aimed at understanding the nature of high intensity x-ray interactions, related applications in ultrafast imaging on the atomic scale and sketch nascent plans for the extension of both linac and storage-ring based photon sources.

Linda Young

2011-02-23T23:59:59.000Z

6

Science Challenges & Opportunities for an Advanced X-ray Free...  

NLE Websites -- All DOE Office Websites (Extended Search)

Science Challenges & Opportunities for an Advanced X-ray Free-electron Laser Wednesday, October 2, 2013 - 3:00pm SLAC, Kavli 3rd Floor Conference Room Robert Schoenlein, Lawrence...

7

X Ray Scattering | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

X Ray Scattering X Ray Scattering Materials Sciences and Engineering (MSE) Division MSE Home About Research Areas Energy Frontier Research Centers (EFRCs) DOE Energy Innovation Hubs BES Funding Opportunities The Computational Materials and Chemical Sciences Network (CMCSN) Theoretical Condensed Matter Physics Scientific Highlights Reports and Activities Principal Investigators' Meetings BES Home Research Areas X Ray Scattering Print Text Size: A A A RSS Feeds FeedbackShare Page This activity supports basic research on the fundamental interactions of photons with matter to achieve an understanding of atomic, electronic, and magnetic structures and excitations and their relationships to materials properties. The main emphasis is on x-ray scattering, spectroscopy, and imaging research, primarily at major BES-supported user facilities.

8

Photon Sciences | Beamlines | SRX: Submicron Resolution X-ray Spectroscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

SRX: Submicron Resolution X-ray Spectroscopy SRX: Submicron Resolution X-ray Spectroscopy Poster | Fact Sheet | Preliminary Design Report Scientific Scope Scientific communities such as environmental sciences, life sciences, and material sciences have identified the need to develop analytical resources to advance the understanding of complex natural and engineered systems that are heterogeneous on the micron to nanometer scale. These needs for high intensity x-ray nanoprobes resulted in the commitment of the NSLS-II Project to build the Submicron Resolution X-ray (SRX) Spectroscopy beamline showing a unique combination of high spectral resolution over a very broad energy range and very high beam intensity in a sub-micrometer spot. NSLS-II will provide one of the best sources in the world for such an instrument.

9

X-Ray Light Sources | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

X-Ray Light Sources X-Ray Light Sources Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Neutron Scattering Facilities Nanoscale Science Research Centers Electron-Beam Microcharacterization Centers Accelerator & Detector Research & Development Principal Investigators' Meetings Scientific Highlights Construction Projects BES Home User Facilities X-Ray Light Sources Print Text Size: A A A RSS Feeds FeedbackShare Page This activity supports the operation of five DOE light sources. The unique properties of synchrotron radiation include its continuous spectrum, high flux and brightness, and in the case of the Linac Coherent Light Source, high coherence, which makes it an indispensable tool in the exploration of matter. The wavelengths of the emitted photons span a range of dimensions

10

Workshop on Time Domain Science Using X-ray Techniques  

NLE Websites -- All DOE Office Websites (Extended Search)

Time-Resolved Beamlines Time-Resolved Beamlines Advisory Committee Workshop Home Workshop Chairs: Lin Chen (Argonne National Laboratory) Steve Milton (Advanced Photon Source) David Reis (University of Michigan) Linda Young (Argonne National Laboratory) Workshop on Time Domain Science Using X-ray Techniques August 29 September 1, 2004, The Abbey, Fontana, Lake Geneva Area, Wisconsin A workshop on "Time Domain Science Using X-ray Techniques" was held from August 29 September 1, 2004 , welcoming both experts and beginners in the field. This is one of the concurrently held workshops in the series on "Future Scientific Directions for the Advanced Photon Source." The goal of the workshop was to identify future directions in scientific research using time resolved x-ray techniques and to address possiblities to produce ps

11

Opportunities for X-ray Science in Future Computing Architectures  

Science Conference Proceedings (OSTI)

The world of computing continues to evolve rapidly. In just the past 10 years, we have seen the emergence of petascale supercomputing, cloud computing that provides on-demand computing and storage with considerable economies of scale, software-as-a-service methods that permit outsourcing of complex processes, and grid computing that enables federation of resources across institutional boundaries. These trends show no sign of slowing down. The next 10 years will surely see exascale, new cloud offerings, and other terabit networks. This talk reviews various of these developments and discusses their potential implications for x-ray science and x-ray facilities.

Foster, Ian [Argonne National Laboratory

2011-02-09T23:59:59.000Z

12

3-D Materials Science using Polychromatic Synchrotron X-Ray ...  

Science Conference Proceedings (OSTI)

... beamline with submicron spatial resolution at the Advanced Photon Source. ... Sciences and Engineering Division; UNI-XOR support at APS by DOE-BES.

13

Chemical Sciences Division - CSD  

NLE Websites -- All DOE Office Websites (Extended Search)

CSD Chemical Sciences Division CSD Organization Contact List Search Other Links Research Areas Research Highlights Organization Contacts Publications Awards Employment...

14

Chemical Sciences Division - Staff Directory  

Science Conference Proceedings (OSTI)

Chemical Sciences Division. Carlos A. Gonzalez (Division Chief) Carol A. Driver (Office Manager) Division Office Staff Directory. ...

2013-08-15T23:59:59.000Z

15

Transient x-ray diffraction and its application to materials science and x-ray optics  

SciTech Connect

Time resolved x-ray diffraction and scattering have been applied to the measurement of a wide variety of physical phenomena from chemical reactions to shock wave physics. Interest in this method has heightened in recent years with the advent of versatile, high power, pulsed x-ray sources utilizing laser plasmas, electron beams and other methods. In this article, we will describe some of the fundamentals involved in time resolved x-ray diffraction, review some of the history of its development, and describe some recent progress in the field. In this article we will emphasize the use of laser-plasmas as the x-ray source for transient diffraction.

Hauer, A.A.; Kopp, R.; Cobble, J.; Kyrala, G.; Springer, R. [and others

1997-12-01T23:59:59.000Z

16

Chemical Sciences Division  

NLE Websites -- All DOE Office Websites (Extended Search)

& CENTERS RESEARCH STUDENT & POSTDOCTORAL OPPORTUNITIES NEWS & EVENTS CSD CONTACTS LBNL HOME logo Privacy & Security Notice DOE UC Berkeley Chemical Sciences Division imagemap...

17

Division of Laboratory Sciences  

E-Print Network (OSTI)

#12;#12;Division of Laboratory Sciences U.S. Department of Health and Human Services Centers and Prevention National Center for Environmental Health Division of Laboratory Sciences Atlanta, Georgia 30341're also working in concert with state public health laboratories, providing training, proficiency testing

18

Synchrotron x-ray sources and new opportunities in the soil and environmental sciences  

Science Conference Proceedings (OSTI)

This report contains the following papers: characteristics of the advanced photon source and comparison with existing synchrotron facilities; x-ray absorption spectroscopy: EXAFS and XANES -- A versatile tool to study the atomic and electronic structure of materials; applications of x-ray spectroscopy and anomalous scattering experiments in the soil and environmental sciences; X-ray fluorescence microprobe and microtomography.

Schulze, D. (Purdue Univ., Lafayette, IN (USA)); Anderson, S. (Michigan State Univ., East Lansing, MI (USA)); Mattigod, S. (Pacific Northwest Lab., Richland, WA (USA))

1990-07-01T23:59:59.000Z

19

Photon Sciences | Beamlines | HXN: Hard X-ray Nanoprobe  

NLE Websites -- All DOE Office Websites (Extended Search)

HXN: Hard X-ray Nanoprobe HXN: Hard X-ray Nanoprobe Poster | Fact Sheet | Preliminary Design Report Scientific Scope The Hard X-ray Nanoprobe beamline and endstation instruments (HXN) will be designed and constructed to explore new frontiers of hard x-ray microscopy applications with the highest achievable spatial resolution. Currently the available spatial resolution for scientific applications, provided by scanning x-ray microscopes in the hard x-ray regime, is limited to ~50nm, which is still insufficient for probing the nanoscale interfacial structures critical in determining properties and functionalities of material and biological systems. The HXN beamline aims to enable x-ray experiments at spatial resolutions ranging from 10 to 30 nm with an ultimate goal of ~1 nm. Beamline Description

20

Photon Sciences | Beamlines | IXS: Inelastic X-ray Scattering  

NLE Websites -- All DOE Office Websites (Extended Search)

IXS: Inelastic X-ray Scattering IXS: Inelastic X-ray Scattering Poster | Fact Sheet | Preliminary Design Report Scientific Scope Many hot topics related to the high frequency dynamics of condensed matter require both a narrower and steeper resolution function and access to a broader dynamic range than what are currently available. This represents a sort of "no man's land" that falls right in the dynamic gap lying between the high frequency spectroscopies, such as inelastic x-ray scattering (IXS), and the low frequency ones. New IXS spectrometers with improved energy and momentum resolutions would be required to fill this gap. To achieve this goal, a new x-ray optics concept for both the monochromatization and energy analysis of x-rays will be implemented at the NSLS-II Inelastic X-ray Scattering beamline. This solution exploits the

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

4D Functional Materials Science with X-ray Microscopy  

Science Conference Proceedings (OSTI)

Ultrafast Electron Diffraction Studies of Lattice Dynamics in Thin Bismuth Films · Understanding Fatigue and Corrosion-Fatigue Behavior by In Situ 3D X-ray ...

22

SLAC National Accelerator Laboratory - X-ray Science  

NLE Websites -- All DOE Office Websites (Extended Search)

energy technologies. SLAC's unique X-ray facilities - the Linac Coherent Light Source (LCLS) and the Stanford Synchrotron Radiation Lightsource (SSRL) - attract thousands of...

23

Materials Science Division - Argonne National Laboratories, Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

Home Home About MSD Information Awards Visit MSD Administrative Staff Division Personnel Research Research Groups Condensed Matter Theory Emerging Materials Energy Conversion and Storage Magnetic Films Molecular Materials Neutron and X-ray Scattering Superconductivity and Magnetism Surface Chemistry Synchrotron Radiation Studies Threat Detection and Analysis Group Research Areas Careers in MSD Internal Sites Search Front Slide 1 November 2013 - Patricia Dehmer (second from right), Deputy Director of Science Programs, DOE Office of Science, joined Argonne Director Eric Isaacs(left) and Associate Laboratory Director for Physical Sciences and Engineering Peter Littlewood(second from left) to tour the recently-opened Energy Sciences Building. Among Dehmer's stops was the crystal growth

24

Mathematical and Computational Sciences Division  

Science Conference Proceedings (OSTI)

Page 1. Mathematical and Computational Sciences Division Summary of Activities for Fiscal Year 2008 Information Technology ...

2009-02-05T23:59:59.000Z

25

Photon Sciences | Beamlines | XPD: X-ray Powder Diffraction  

NLE Websites -- All DOE Office Websites (Extended Search)

XPD: X-ray Powder Diffraction XPD: X-ray Powder Diffraction Poster | Fact Sheet | Preliminary Design Report Scientific Scope XPD is a tunable facility with the ability to collect diffraction data at high x-ray energies (40keV-80keV), offering rapid acquisition (millisecond) and high angular resolution capabilities on the same instrument. XPD addresses future scientific challenges in, for example, hydrogen storage, CO2 sequestration, advanced structural ceramics, catalysis, and materials processing. Such materials of high technological value often are complex, nanostructured and heterogeneous. The scientific grand challenge is to obtain robust and quantitative (micro)structural information, not only in the ground state at ambient conditions, but also in situ or in operando with varying temperature, pressure, magnetic/electric/stress

26

The Use of X-Ray Microbeams in Materials Science  

SciTech Connect

Most materials are heterogeneous on mesoscopic length scales (tenths-to-tens of microns), and materials properties depend critically on mesoscopic structures such as grain sizes, texture, and impurities. The recent availability of intense, focused x-ray microbeams at synchrotron facilities has enabled new techniques for mesoscale materials characterization. We describe instrumentation and experiments on the MHATT-CAT and UNICAT undulator beamlines at the Advanced Photon Source which use micron and submicron-size x-ray beams to investigate the grain orientation, local strain and defect content in a variety of materials of technological interest. Results from a combinatorial study on epitaxial growth of oxide films on textured metal substrates will be described to illustrate x-ray microbeam capabilities.

Budai, J.D.; Chung, J.-S.; Ice, G.E.; Larson, B.C.; Lowe, W.P.; Norton, D.P.; Tamura, N.; Tischler, J.Z.; Williams, E.L.; Yoon, M.; Zschack, P.

1998-10-13T23:59:59.000Z

27

Workshop: Time Resolved X-Ray Science at High Repetition Rate | Stanford  

NLE Websites -- All DOE Office Websites (Extended Search)

Time Resolved X-Ray Science at High Repetition Rate Time Resolved X-Ray Science at High Repetition Rate Saturday, October 22, 2011 - 8:30am SSRL Conference Room 137-322 In conjunction with the 2011 LCLS/SSRL User Meeting, SSRL and the APS will jointly host a two-day workshop focused on opportunities with short-pulse, high-repetition rate X-ray Science. The workshop will feature international speakers and panel experts presenting the scientific basis, preliminary results and future potential of high rep-rate picosecond x-rays beams from storage rings. The workshop will be broadly focused on topics in materials science, chemistry, biology and catalysis. The workshop agenda will also include presentations on accelerator operational modes, precision timing issues, detector challenges and the relation of storage ring science with

28

Chemical Sciences Division: Introduction: Organization Chart  

NLE Websites -- All DOE Office Websites (Extended Search)

Chart Ultrafast X-Ray Science Laboratory ALS-MES Beamline Actinde Science Chemical Dynamics Beamline Centers Programs Chemical Physics The Glenn T. Seaborg Center...

29

'Science on Saturday' lecture examines the extreme X-ray universe  

NLE Websites -- All DOE Office Websites (Extended Search)

Printer-friendly NASA's NuSTAR spacecraft. "The Extreme X-ray Universe: Discovery Science with NASA's NuSTAR Mission," by Lab scientists Michael Pivovaroff and Bill Craig, and...

30

Life Sciences Division Home  

NLE Websites -- All DOE Office Websites (Extended Search)

The vision of the Life Sciences Division is to advance basic knowledge, and The vision of the Life Sciences Division is to advance basic knowledge, and the health of humans and the biosphere, by elucidating the 4-Dimensional dynamics of complex biological systems -- ranging from molecules to microbes to humans. Research Highlights New Imaging Technique Identified to Monitor Progression of Heart Failure In a recent publication of Journal of Nuclear Medicine, a team of scientists from Berkeley Lab, the University of Utah, and UC San Francisco describe a new imaging technique used to monitor the progression of heart failure. More » Unlocking the Secrets of Proteins Cryoelectron microscopy is helping to unlock the secrets of proteins as never before, thanks to technology developed for one of the world's most powerful electron microscopes, TEAM, at Berkeley Lab's National Center for

31

Materials Measurement Science Division Staff Directory  

Science Conference Proceedings (OSTI)

... Patricia Ridgley Division Office Manager 301-975-3914. ... Material Measurement Laboratory Materials Measurement Science Division. ...

2013-03-19T23:59:59.000Z

32

Chemical Sciences Division: Introduction: Director's Statement  

NLE Websites -- All DOE Office Websites (Extended Search)

Division Overview Under Construction Ali Belkacem Chemical Sciences Division Director Chemical Sciences Division Research Affiliations Our four core programs-Chemical Physics; The...

33

Division of Chemical & Biological Sciences | Ames Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

Division of Chemical & Biological Sciences Division of Chemical & Biological Sciences Image Welcome Research teams in this Division conduct fundamental and applied studies of how...

34

SRS -Structural Science Home Page  

NLE Websites -- All DOE Office Websites (Extended Search)

Safety and Training Divisions APS Engineering Support Division AES Groups Accelerator Systems Division ASD Groups X-ray Science Division XSD Groups Industry Argonne Home ...

35

Chemical Sciences Division January 2011  

E-Print Network (OSTI)

(15) UT/ORNL Governor Chair (16) Neutron Scattering Science Division Special Division Assignments: M. Sharma (4) A. B. Dystra (4) M. J. Walworth (4) M. S. Elnaggar (2) J.. C. Young (4) Physical Organic

36

The Next Challenge in X-Ray Science: Control of Resonant Electronic  

NLE Websites -- All DOE Office Websites (Extended Search)

The Next Challenge in X-Ray Science: Control of Resonant Electronic The Next Challenge in X-Ray Science: Control of Resonant Electronic Processes Wednesday, September 11, 2013 - 3:00pm SLAC, Redtail Hawk Conference Room 108A Joachim Stöhr, LCLS My talk will give a historic perspective of the revolutionary science that was enabled by the advent of high power sources of coherent electromagnetic radiation and the implications for future scientific opportunities with x-ray free electron lasers (X-FELs). The historical journey starts with the development of radar microwave sources in the 1940s that fueled the development of nuclear magnetic resonance (NMR) techniques which by now have led to 6 Nobel Prizes. The theoretical description of NMR as coherent processes between nuclear states by Rabi and Bloch also provided the theoretical basis for the optical laser and its applications. Over the last

37

Soft x-ray spectromicroscopy development for materials science at the Advanced Light Source  

Science Conference Proceedings (OSTI)

Several third generation synchrotron radiation facilities are now operational and the high brightness of these photon sources offers new opportunities for x-ray microscopy. Well developed synchrotron radiation spectroscopy techniques are being applied in new instruments capable of imaging the surface of a material with a spatial resolution smaller than one micron. There are two aspects to this. One is to further the field of surface science by exploring the effects of spatial variations across a surface on a scale not previously accessible to x-ray measurements. The other is to open up new analytical techniques in materials science using x-rays, on a spatial scale comparable to that of the processes or devices to be studied. The development of the spectromicroscopy program at the Advanced Light Source will employ a variety of instruments, some are already operational. Their development and use will be discussed, and recent results will be presented to illustrate their capabilities.

Warwick, T.; Padmore, H. [Lawrence Berkeley National Lab., CA (United States); Ade, H. [North Carolina State Univ., Raleigh, NC (United States); Hitchcock, A.P. [McMaster Univ., Hamilton, Ontario (Canada); Rightor, E.G. [Dow Texas Polymer Center, Freeport, TX (United States); Tonner, B.P. [Univ. of Wisconsin, Milwaukee, WI (United States)

1996-08-01T23:59:59.000Z

38

NIST Sensor Science Division Office Staff Directory  

Science Conference Proceedings (OSTI)

... Associates. Name, Position, Office Phone. Parr, Albert, Physicist, 301-975- 2316. ... Contact. Sensor Science Division Gerald Fraser, Division Chief. ...

2013-04-10T23:59:59.000Z

39

Workshops on Science Enabled by a Coherent, CW, Synchrotron X-ray Source, June 2011  

Science Conference Proceedings (OSTI)

In June of 2011 we held six two-day workshops called "XDL-2011: Science at the Hard X-ray Diffraction Limit". The six workshops covered (1) Diffraction-based imaging techniques, (2) Biomolecular structure from non-crystalline materials, (3) Ultra-fast science, (4) High-pressure science, (5) Materials research with nano-beams and (6) X-ray photon correlation spectroscopy (XPCS), In each workshop, invited speaker from around the world presented examples of novel experiments that require a CW, diffraction-limited source. During the workshop, each invited speaker provided a one-page description of the experiment and an illustrative graphic. The experiments identified by the workshops demonstrate the broad and deep scientific case for a CW coherent synchrotron x-ray source. The next step is to perform detailed simulations of the best of these ideas to test them quantitatively and to guide detailed x-ray beam-line designs. These designs are the first step toward developing detailed facility designs and cost estimates.

Brock, Joel

2012-01-03T23:59:59.000Z

40

Nuclear Science and Engineering - Divisions  

NLE Websites -- All DOE Office Websites (Extended Search)

Home Home NSED Divisions The Nuclear Science and Engineering Directorate (NSED) organization is composed of ORNL's only DOE Energy Innovation Hub, a program office, and the following five divisions. Fuel Cycle and Isotopes Division (FCID) FCID focuses on advancing the applications of medical, industrial, and research isotopes (developing separation processes for the processing of radioisotopes and spent nuclear fuels) and designing robotic systems and unique facilities for the safe handling of nuclear materials. Fusion Energy Division (FE) FE is developing the understanding required for an attractive fusion energy source through integrated research, and is pursuing near term applications of plasma science and technology in support of national goals. Global Nuclear Security Technology Division (GNSTD)

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

NIST, Sensor Science Division, Ultraviolet Radiation Group ...  

Science Conference Proceedings (OSTI)

... Physicist Sensor Science Division Ultraviolet Radiation Group. ... Ph.D. Optical Sciences and Engineering ... Orlando, FL MS Electrical Engineering, The ...

2013-03-21T23:59:59.000Z

42

2011 X-Ray Science Gordon Research Conference (August 7-12, 2011, Colby, College. Waterville, ME)  

SciTech Connect

The 2011 Gordon Research Conference on X-ray Science will feature forefront x-ray-based science enabled by the rapid improvements in synchrotron and x-ray laser sources. Across the world, x-ray sources are playing an increasingly important role in physics, materials, chemistry, and biology, expanding into ever broadening areas of science and engineering. With the first hard x-ray free electron laser source beginning operation and with other advanced x-ray sources operational and planned, it is a very exciting and pivotal time for exchange ideas about the future of x-ray science and applications. The Conference will provide the forum for this interaction. An international cast of speakers will illuminate sessions on ultrafast science, coherence, imaging, in situ studies, extreme conditions, new developments in optics, sources, and detectors, inelastic scattering, nanoscience, life science, and energy sciences. The Conference will bring together investigators at the forefront of these areas, and will provide a venue for young scientists entering a career in x-ray research to present their research in poster format, hold discussions in a friendly setting, and exchange ideas with leaders in the field. Some poster presenters will be selected for short talks. The collegial atmosphere of this Conference, with ample time for discussion as well as opportunities for informal gatherings in the afternoons and evenings, will provide an avenue for scientists from different disciplines to exchange ideas about forefront x-ray techniques and will promote cross-fertilization between the various research areas represented.

Gregory Stephenson

2011-08-12T23:59:59.000Z

43

Chemical Sciences Division: Research: Programs  

NLE Websites -- All DOE Office Websites (Extended Search)

Programs Programs The Chemical Sciences Division (CSD) is one of Berkeley Laboratory's basic research divisions. The CSD is composed of individual research groups that conduct research in the areas of chemical physics and the dynamics of chemical reactions, the structure and reactivity of transient species, electron spectroscopy, surface chemistry and catalysis, electrochemistry, chemistry of the actinide elements and their relationship to environmental issues, and atomic physics. The division's 28 principal investigators, many of whom are on the faculty of the University of California at Berkeley, direct the individual research projects and the work of 6 staff scientists, 41 postdoctoral researchers, and 75 graduate students. Our research staff continues to achieve fundamental advances in understanding the structure and reactivity of critical reaction intermediates and transients using both state-of-the-art experimental and theoretical methods. In addition, the division supports a strong effort in heterogeneous and homogeneous catalysis.

44

Chemical Sciences Division: Directory  

NLE Websites -- All DOE Office Websites (Extended Search)

INTRODUCTION INTRODUCTION TO CSD NATIONAL FACILITIES & CENTERS RESEARCH STUDENT & POSTDOCTORAL OPPORTUNITIES NEWS & EVENTS CSD CONTACTS LBNL HOME Privacy & Security Notice DOE UC Berkeley CSD Directory A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Rebecca Abergel CSD Project Scientist; The Glenn T. Seaborg Center. Musahid Ahmed CSD Staff Scientist, Chemical Physics Program/Chemical Dynamics Beamline Publications Richard A. Andersen Professor of Chemistry, UC Berkeley; CSD Senior Faculty Scientist, The Glenn T. Seaborg Center Publications John Arnold Professor of Chemistry, UC Berkeley; CSD Faculty Scientist, Catalytic Science Program Publications B Ali Belkacem CSD Deputy and Senior Staff Scientist; Atomic, Molecular and Optical Sciences Program Leader

45

Computer Sciences and Mathematics Division | ornl.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Computer Sciences and Mathematics Division SHARE Computer Sciences and Mathematics Division The Computer Science and Mathematics Division (CSMD) is ORNL's premier source of basic...

46

Chemical Sciences Division | Advanced Materials |ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Chemical Sciences Chemical Sciences Division SHARE Chemical Sciences Division The Chemical Sciences Division performs discovery and uses inspired research to understand, predict, and control the physical processes and chemical transformations at multiple length and time scales, especially at interfaces. The foundation of the division is a strong Basic Energy Sciences (BES) portfolio that pushes the frontiers of catalysis, geosciences, separations and analysis, chemical imaging, neutron science, polymer science, and interfacial science. Theory is closely integrated with materials synthesis and characterization to gain new insights into chemical transformations and processes with the ultimate goal of predictive insights. Applied research programs naturally grow out of our fundamental

47

Berkeley Lab - Materials Sciences Division  

NLE Websites -- All DOE Office Websites (Extended Search)

Center for Electron Microscopy Center for X-ray Optics Joint Center for Artificial Photosynthesis, North Research Highlights Research & Facilities Core Programs Materials...

48

Science with Micro-X: the TES Microcalorimeter X-ray Imaging Rocket  

DOE Green Energy (OSTI)

Micro-X is a proposed sounding rocket experiment that will combine a transition-edge-sensor X-ray-microcalorimeter array with a conical imaging mirror to obtain high-spectral-resolution images of extended and point X-ray sources. We describe the payload and the science targeted by this mission including the discussion of three possible Micro-X targets: the Puppis A supernova remnant, the Virgo Cluster, and Circinus X-1. For example, a Micro-X observation of the bright eastern knot of Puppis A will obtain a line-dominated spectrum with 90,000 counts collected in 300 seconds at 2 eV resolution across the 0.3-2.5 keV band. Micro-X will utilize plasma diagnostics to determine the thermodynamic and ionization state of the plasma, to search for line shifts and broadening associated with dynamical processes, and seek evidence of ejecta enhancement. For clusters of galaxies, Micro-X can uniquely study turbulence and the temperature distribution function. For binaries, Micro-X's high resolution spectra will separate the different processes contributing to the Fe K lines at 6 keV and give a clear view of the geometry of the gas flows and circumstellar gas.

Figueroa-Feliciano, E; Bandler, S R; Bautz, M; Boyce, K R; Brown, G V; Deiker, S; Doriese, W B; Flanagan, K; Galeazzi, M; Hilton, G C; Hwang, U; Irwin, K D; Kallman, T; Kelley, R L; Kilbourne, C A; Kissel, S; Levine, A; Loewenstein, M; Martinez-Galarce, D; McCammon, D; Mushotzky, R; Petre, R; Porter, F S; Reistema, C D; Saab, T; Serlemitsos, P; Schulz, N; Smith, R; Ullom, J N

2006-05-16T23:59:59.000Z

49

Materials Sciences Division 1990 annual report  

Science Conference Proceedings (OSTI)

This report is the Materials Sciences Division`s annual report. It contains abstracts describing materials research at the National Center for Electron Microscopy, and for research groups in metallurgy, solid-state physics, materials chemistry, electrochemical energy storage, electronic materials, surface science and catalysis, ceramic science, high tc superconductivity, polymers, composites, and high performance metals.

Not Available

1990-12-31T23:59:59.000Z

50

Division Personnel - Argonne National Laboratories, Materials...  

NLE Websites -- All DOE Office Websites (Extended Search)

became a Postdoctoral Appointee with Hoydoo You in the Materials Science Division at Argonne National Laboratory.  Andi&39;s current research interest include using x-ray...

51

The Next Challenge in X-Ray Science: Control of Resonant Electronic...  

NLE Websites -- All DOE Office Websites (Extended Search)

and the implications for future scientific opportunities with x-ray free electron lasers (X-FELs). The historical journey starts with the development of radar microwave...

52

Chemical Sciences Division: Introduction: CSD Contacts  

NLE Websites -- All DOE Office Websites (Extended Search)

CSD Contacts Chemical Sciences Division Office Location: Building 70A, Room 3307 Telephone: (510) 486-7422 Fax: (510) 486-6033 Mailing Address: Lawrence Berkeley National...

53

New Environmental Science Division report provides comprehensive...  

NLE Websites -- All DOE Office Websites (Extended Search)

New Environmental Science Division report provides comprehensive information about solar energy impacts and mitigation September 13, 2013 Tweet EmailPrint Argonne's...

54

NIST, Sensor Science Division, Ultraviolet Radiation Group ...  

Science Conference Proceedings (OSTI)

Uwe Arp. Dr. Uwe Arp is a physicist in the Ultraviolet Radiation Group of the Sensor Science Division in the Physical Measurement Laboratory. ...

2013-08-19T23:59:59.000Z

55

Photon Sciences | Beamlines | CSX: Coherent Soft X-ray Scattering and  

NLE Websites -- All DOE Office Websites (Extended Search)

CSX: Coherent Soft X-ray Scattering and polarization CSX: Coherent Soft X-ray Scattering and polarization X-Ray 1 Poster | X-Ray 2 Poster | Fact Sheet | Preliminary Design Report Scientific Scope The Coherent Soft X-ray Scattering and Polarization (CSX) beamline design (source and optics) has been optimized to the NSLS-II parameters to provide the highest possible flux for experiments requiring either high coherence or full control of the polarization. Beamline Description The CSX beamline will be served by two identical EPU49 sources. Both EPUs are planned to operate in a canted geometry with opposite circular polarization for fast polarization switching experiments at the full polarization control (PC) branch. The EPUs will also be able to operate "phased" as a single device for high coherent flux experiments at the

56

Core Level Spectroscopies Surface Science and X-Ray Spectroscopy Group  

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Core Level Spectroscopy Creation and Decay of Core Holes Spectroscopic Techniques X-ray Photoelectron (XPS) X-ray Absorption (XAS) X-ray Emission (XES) Auger Electron (AES) Core holes are created by the ionization of a core electron in XPS and by excitation in XAS . The XPS and XAS final states are highly unstable and the core hole decays by non-radiant Auger relaxation (AES) or by radiant x-ray emission processes (XES). XPS and AES probe the unoccupied electronic stru cture, while XAS projects the unoccupied valence states of the system onto a particular atom. A brief description of the each of the different spectroscopies illustrated by schematic pictures of the creation and decay with data measured for N2 adsorbed on Ni(100) can be found by scrolling

57

Earth Sciences Division collected abstracts: 1979  

Science Conference Proceedings (OSTI)

This report is a compilation of abstracts of papers, internal reports, and talks presented during 1979 at national and international meetings by members of the Earth Sciences Division, Lawrence Livermore Laboratory. The arrangement is alphabetical (by author). For a given report, a bibliographic reference appears under the name of each coauthor, but the abstract iself is given only under the name of the first author or the first Earth Sciences Division author. A topical index at the end of the report provides useful cross references, while indicating major areas of research interest in the Earth Sciences Division.

Henry, A.L.; Schwartz, L.L.

1980-04-30T23:59:59.000Z

58

Key Facts about the Mathematics and Computer Science Division...  

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Publications Documents Key Facts about the Mathematics and Computer Science Division Researchers in the Mathematics and Computer Science Division attack complex problems in four...

59

A recirculating linac-based facility for ultrafast X-ray science  

SciTech Connect

We present an updated design for a proposed source of ultra-fast synchrotron radiation pulses based on a recirculating superconducting linac, in particular the incorporation of EUV and soft x-ray production. The project has been named LUX - Linac-based Ultrafast X-ray facility. The source produces intense x-ray pulses with duration of 10-100 fs at a 10 kHz repetition rate, with synchronization of 10 s fs, optimized for the study of ultra-fast dynamics. The photon range covers the EUV to hard x-ray spectrum by use of seeded harmonic generation in undulators, and a specialized technique for ultra-short-pulse photon production in the 1-10 keV range. High-brightness rf photocathodes produce electron bunches which are optimized either for coherent emission in free-electron lasers, or to provide a large x/y emittance ration and small vertical emittance which allows for manipulation to produce short-pulse hard x-rays. An injector linac accelerates the beam to 120 MeV, and is followed by four passes through a 600-720 MeV recirculating linac. We outline the major technical components of the proposed facility.

Corlett, J.N; Barletta, W.A.; DeSantis, S.; Doolittle, L.; Fawley, W.M.; Green, M.A.; Heimann, P.; Leone, S.; Lidia, S.; Li, D.; Ratti, A.; Robinson, K.; Schoenlein, R.; Staples, J.; Wan, W.; Wells, R.; Wolski, A.; Zholents, A.; Placidi, M.; Pirkl, W.; Parmigiani, F.

2003-05-06T23:59:59.000Z

60

Materials Sciences Division 1990 annual report  

Science Conference Proceedings (OSTI)

This report is the Materials Sciences Division's annual report. It contains abstracts describing materials research at the National Center for Electron Microscopy, and for research groups in metallurgy, solid-state physics, materials chemistry, electrochemical energy storage, electronic materials, surface science and catalysis, ceramic science, high tc superconductivity, polymers, composites, and high performance metals.

Not Available

1990-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Earth Sciences Division annual report 1989  

SciTech Connect

This Annual Report presents summaries of selected representative research activities from Lawrence Berkeley Laboratory grouped according to the principal disciplines of the Earth Sciences Division: Reservoir Engineering and Hydrology, Geology and Geochemistry, and Geophysics and Geomechanics. We are proud to be able to bring you this report, which we hope will convey not only a description of the Division's scientific activities but also a sense of the enthusiasm and excitement present today in the Earth Sciences.

1990-06-01T23:59:59.000Z

62

Earth Sciences Division collected abstracts: 1980  

DOE Green Energy (OSTI)

This report is a compilation of abstracts of papers, reports, and talks presented during 1980 at national and international meetings by members of the Earth Sciences Division, Lawrence Livermore National Laboratory. The arrangement is alphabetical (by author). For a given report, a bibliographic reference appears under the name of each coauthor, but the abstract itself is given only under the name of the first author (indicated in capital letters) or the first Earth Sciences Division author.

Henry, A.L.; Hornady, B.F. (eds.)

1981-10-15T23:59:59.000Z

63

Medical Sciences Division report for 1993  

SciTech Connect

This year`s Medical Sciences Division (MSD) Report is organized to show how programs in our division contribute to the core competencies of Oak Ridge Institute for Science and Education (ORISE). ORISE`s core competencies in education and training, environmental and safety evaluation and analysis, occupational and environmental health, and enabling research support the overall mission of the US Department of Energy (DOE).

Not Available

1993-12-31T23:59:59.000Z

64

Materials Science and Technology Division - Physical Sciences Directorate -  

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STG STG For the Public Publications Visiting ORNL For Researchers Profiles Group Leader Staff Members For Industry Sponsored Research Programs Our People Contacts by Group Leader, Staff Members Find People Related Cooperative Research and Development Agreement Work for Others Recent News & Features News Releases Archive | Features Archive PSD Directorate › MST Division › Scattering and Thermophysics Group The Scattering and Thermophysics Group aims to be a national leader in materials characterization using diffraction and thermophysical property measurement methods. The diffraction portion of the Group utilizes laboratory x-ray, synchrotron x-ray, and neutron diffraction facilties to solve problems from phase stability to residual stress and texture. The thermography and thermophysical properties of the Group has exceptional

65

Materials Science and Technology Division - Physical Sciences...  

NLE Websites -- All DOE Office Websites (Extended Search)

| Features Archive PSD Directorate MST Division Mechanical Properties and Mechanics Group The Mechanical Properties and Mechanics Group (MP&M) conducts applied research...

66

HIGH-PERFORMANCE COMPUTING FOR THE STUDY OF EARTH AND ENVIRONMENTAL SCIENCE MATERIALS USING SYNCHROTRON X-RAY COMPUTED MICROTOMOGRAPHY.  

SciTech Connect

Synchrotron x-ray computed microtomography (CMT) is a non-destructive method for examination of rock, soil, and other types of samples studied in the earth and environmental sciences. The high x-ray intensities of the synchrotron source make possible the acquisition of tomographic volumes at a high rate that requires the application of high-performance computing techniques for data reconstruction to produce the three-dimensional volumes, for their visualization, and for data analysis. These problems are exacerbated by the need to share information between collaborators at widely separated locations over both local and tide-area networks. A summary of the CMT technique and examples of applications are given here together with a discussion of the applications of high-performance computing methods to improve the experimental techniques and analysis of the data.

FENG,H.; JONES,K.W.; MCGUIGAN,M.; SMITH,G.J.; SPILETIC,J.

2001-10-12T23:59:59.000Z

67

Inelastic X-ray and Nuclear Resonant Scattering  

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Beamlines Divisions Argonne Home > Advanced Photon Source > Inelastic X-ray and Nuclear Resonant Scattering The Inelastic X-ray and Nuclear Resonant Scattering group...

68

LANL | Earth and Environmental Sciences Division (EES)  

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Groups in EES Division Groups in EES Division The EES Division of Los Alamos National Laboratory is organized into four groups and the Institute of Geophysics and Planetary Physics (IGPP). The Groups are organized by their capabilities and expertise. Scientific advice is provided by the Science and Engineering Leadership Team (SELT), helping the EES technical staff become more effective at obtaining research and development funds. In late 2008, the EES Division was reorganized. Links to our former groups are available still. EES Organizational Chart Lab Organizational Chart (Internal Only) Repository Science (EES-12) Yucca Mountain Project and the Waste Isolation Pilot Plant Earth Systems Observations (EES-14) GGRL, Radiogeoprocesses, and Terrestrial Processes Computational Earth Sciences (EES-16)

69

Chemical Sciences Division: Annual report 1992  

Science Conference Proceedings (OSTI)

The Chemical Sciences Division (CSD) is one of twelve research Divisions of the Lawrence Berkeley Laboratory, a Department of Energy National Laboratory. The CSD is composed of individual groups and research programs that are organized into five scientific areas: Chemical Physics, Inorganic/Organometallic Chemistry, Actinide Chemistry, Atomic Physics, and Physical Chemistry. This report describes progress by the CSD for 1992. Also included are remarks by the Division Director, a description of work for others (United States Office of Naval Research), and appendices of the Division personnel and an index of investigators. Research reports are grouped as Fundamental Interactions (Photochemical and Radiation Sciences, Chemical Physics, Atomic Physics) or Processes and Techniques (Chemical Energy, Heavy-Element Chemistry, and Chemical Engineering Sciences).

Not Available

1993-10-01T23:59:59.000Z

70

[Research at and operation of the material science x-ray absorption beamline (X-11) at the National Synchrotron Light Source]. Progress report  

Science Conference Proceedings (OSTI)

This report discusses three projects at the Material Science X-Ray Absorption Beamline. Topics discussed include: XAFS study of some titanium silicon and germanium compounds; initial XAS results of zirconium/silicon reactions; and low angle electron yield detector.

Not Available

1992-08-01T23:59:59.000Z

71

(Research at and operation of the material science x-ray absorption beamline (X-11) at the National Synchrotron Light Source)  

Science Conference Proceedings (OSTI)

This report discusses three projects at the Material Science X-Ray Absorption Beamline. Topics discussed include: XAFS study of some titanium silicon and germanium compounds; initial XAS results of zirconium/silicon reactions; and low angle electron yield detector.

Not Available

1992-01-01T23:59:59.000Z

72

Life Sciences & Genomics Division Diversity  

NLE Websites -- All DOE Office Websites (Extended Search)

Sciences & Genomics Diversity imagemap Workforce Diversity Action Plans title Diversity Committee Employment Opportunities Community Outreach Activities htmlempopps.html Read...

73

Nuclear Science Division: 1993 Annual report  

Science Conference Proceedings (OSTI)

This report describes the activities of the Nuclear Science Division for the 1993 calendar year. This was another significant year in the history of the Division with many interesting and important accomplishments. Activities for the following programs are covered here: (1) nuclear structure and reactions program; (2) the Institute for Nuclear and Particle Astrophysics; (3) relativistic nuclear collisions program; (4) nuclear theory program; (5) nuclear data evaluation program, isotope project; and (6) 88-inch cyclotron operations.

Myers, W.D. [ed.

1994-06-01T23:59:59.000Z

74

Materials Science & Tech Division | Advanced Materials | ORNL  

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Supporting Organizations Supporting Organizations Center for Nanophase Materials Sciences Chemical Sciences Division Materials Science and Technology BES Chemical Sciences, Geosciences, and Biosciences Program BES Materials Sciences and Engineering Program Joint Institute For Advanced Materials Advanced Materials Home | Science & Discovery | Advanced Materials | Supporting Organizations | Materials Science and Technology SHARE Materials Science and Technology Division The Materials Science and Technology Division is unique within the Department of Energy (DOE) System with mission goals that extend from fundamental materials science to applied materials science and technology. One key component of the division is a strong Basic Energy Sciences (BES) portfolio that pushes the frontiers of materials theory, synthesis

75

Life Sciences Division annual report, 1988  

Science Conference Proceedings (OSTI)

This report summarizes the research and development activities of Los Alamos National Laboratory's Life Sciences Division for the calendar year 1988. Technical reports related to the current status of projects are presented in sufficient detail to permit the informed reader to assess their scope and significance. Summaries useful to the casual reader desiring general information have been prepared by the Group Leaders and appear in each group overview. Investigators on the staff of the Life Sciences Division will be pleased to provide further information.

Marrone, B.L.; Cram, L.S. (comps.)

1989-04-01T23:59:59.000Z

76

Materials Science and Technology Division - Physical Sciences...  

NLE Websites -- All DOE Office Websites (Extended Search)

Powered by Space Radioisotope Power Systems Energy.Gov Office of Nuclear Energy - Space Power Systems NASA Cassini- Huygens Mission to Saturn NASA Curosity - Mars Science...

77

Earth Sciences Division annual report 1980  

DOE Green Energy (OSTI)

Summaries of the highlights of programs in the Earth Sciences Division are presented under four headings; Geosciences, Geothermal Energy Development, Nuclear Waste Isolation, and Marine Sciences. Utilizing both basic and applied research in a wide spectrum of topics, these programs are providing results that will be of value in helping to secure the nation's energy future. Separate abstracts have been prepared for each project for inclusion in the Energy Data Base. (DMC)

Not Available

1981-07-01T23:59:59.000Z

78

Hard X-Ray Quad Collimator  

Technology Development and Commercialization Division One of the best ways to obtain small?size x?ray beams for structural biology research is to ...

79

Chemical and Laser Sciences Division annual report 1989  

SciTech Connect

The Chemical and Laser Sciences Division Annual Report includes articles describing representative research and development activities within the Division, as well as major programs to which the Division makes significant contributions.

Haines, N. (ed.)

1990-06-01T23:59:59.000Z

80

Berkeley Lab - Materials Sciences Division  

NLE Websites -- All DOE Office Websites (Extended Search)

Publications Publications Publications J. R. I. Lee, H. D. Whitley, R. W. Meulenberg, A. Wolcott, J. Z. Zhang, D. Prendergast, D. D. Lovingood, G. F. Strouse, T. Ogitsu, E. Schwegler, L. J. Terminello and T. van Buuren. Ligand-Mediated Modification of the Electronic Structure of CdSe Quantum Dots. Nano Letters 12, 2763 (2012). abstract » B. Zamft, L. Bintu, T. Ishibashi and C. Bustamante. Nascent RNA structure modulates the transcriptional dynamics of RNA polymerases. Proceedings of the National Academy of Sciences 109, 8948 (2012). abstract » W. Morris, B. Volosskiy, S. Demir, F. Gandara, P. L. McGrier, H. Furukawa, D. Cascio, J. F. Stoddart and O. M. Yaghi. Synthesis, Structure, and Metalation of Two New Highly Porous Zirconium Metal-Organic Frameworks. Inorganic chemistry 51, 6443 (2012). abstract »

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Nuclear Science Division Annual Report 1995-1996  

E-Print Network (OSTI)

Saladin5, and C.H. Yu6 Nuclear Science Division, LawrenceMoretto, G.J. Wozniak, Nuclear Science Division, LawrenceComment on “Probing the Nuclear Liquid-Gas Phase Transition”

Authors, Various

2010-01-01T23:59:59.000Z

82

Berkeley Lab Divisions  

NLE Websites -- All DOE Office Websites (Extended Search)

Sciences Division Engineering Division Environmental Energy Technologies Division Genomics Division Life Sciences Division Materials Sciences Division National Energy Research...

83

Geothermal: Sponsored by OSTI -- Earth Sciences Division annual...  

Office of Scientific and Technical Information (OSTI)

Earth Sciences Division annual report, 1976. Research programs in Earth sciences Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On Home...

84

X-ray science taps bug biology to design better materials and...  

NLE Websites -- All DOE Office Websites (Extended Search)

and Reports Summer Science Writing Internship Caddiesflies spin an adhesive silk underwater to build nets to capture food and build protective shelter. Pictured is that silk...

85

X-ray Interface Science at Advanced Photon Source: New Sector...  

NLE Websites -- All DOE Office Websites (Extended Search)

will serve a diverse community with interests in catalysis, oxide film growth, geochemistry, surface physics, nano-science, tribology, electrochemistry and so on. Attendees,...

86

Publications of the Life Sciences Division, ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

LSD logo Life Sciences Division LSD logo Life Sciences Division Oak Ridge National Laboratory Programs Partners Organization Highlights In the News --- Home Internal (Restricted Access) Contacts Publications 2003 Publications/Presentations Akabani, G., S. J. Kennel, and M. R. Zalutsky, "Microdosimetric analysis of alpha-particle-emitting targeted radiotherapeutics using histological images," J. Nucl. Med. 44(5):792-805 (May 2003). Allain, L. R., D. N. Stratis, C. M. Cullum, J. Mobley, M. R. Hajaligol, and T. Vo-Dinh, "Real-time detection of PAH mixtures in the vapor phase at high temperatures," J. Anal. Appl. Pyrolysis 66(1-2):145-154 (January 2003). Chain, P., J. Lamerdin, F. Larimer, W. Regala, V. Lao, M. Land, L. Hauser, A. Hooper, M. Klotz, J. Norton, L. Sayavedra- Soto, D. Arciero, N. Hommes, M. Whittaker, and D. Arp, "Complete Genome Sequence of the Ammonia-Oxidizing Bacterium and Obligate Chemolithoautotroph NitrosomonaseEuropaea," J. Bacteriology 185(9):2759-2773 (May 2003).

87

X-ray Microscopy and Imaging (XSD-XMI)  

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Imaging (XMI) Imaging (XMI) About XMI Science and Research Beamlines Highlights Software and Tools Intranet Search APS... Argonne Home > Advanced Photon Source > Contacts FAQs Beamlines News Publications APS Email Portal APS Intranet APS Phonebook APS Quick Links for Users APS Safety and Training Welcome to the X-ray Microscopy and Imaging group (XMI)! X-ray Microscopy and Imaging is part of the X-ray Science Division at the Advanced Photon Source. We develop and support a diverse and multidisciplinary user research program at Sectors 2 and 32 of the APS, with the overall goal to image and study materials structures at spatial and temporal resolutions that are most scientifically relevant to the cutting-edge advances in materials, biological, environmental, and biomedical sciences. To achieve this goal, we actively engage in various research activities including

88

Materials Analysis by Soft x-ray Scanning Transmission X-ray ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2013. Symposium, Optical and X-ray Imaging Techniques for Material Characterization.

89

Earth Sciences Division annual report 1990  

Science Conference Proceedings (OSTI)

This Annual Report presents summaries of selected representative research activities grouped according to the principal disciplines of the Earth Sciences Division: Reservoir Engineering and Hydrogeology, Geology and Geochemistry, and Geophysics and Geomechanics. Much of the Division`s research deals with the physical and chemical properties and processes in the earth`s crust, from the partially saturated, low-temperature near-surface environment to the high-temperature environments characteristic of regions where magmatic-hydrothermal processes are active. Strengths in laboratory and field instrumentation, numerical modeling, and in situ measurement allow study of the transport of mass and heat through geologic media -- studies that now include the appropriate chemical reactions and the hydraulic-mechanical complexities of fractured rock systems. Of particular note are three major Division efforts addressing problems in the discovery and recovery of petroleum, the application of isotope geochemistry to the study of geodynamic processes and earth history, and the development of borehole methods for high-resolution imaging of the subsurface using seismic and electromagnetic waves. In 1989 a major DOE-wide effort was launched in the areas of Environmental Restoration and Waste Management. Many of the methods previously developed for and applied to deeper regions of the earth will in the coming years be turned toward process definition and characterization of the very shallow subsurface, where man-induced contaminants now intrude and where remedial action is required.

NONE

1991-06-01T23:59:59.000Z

90

Quantum Condensed Matter Division | Neutron Science | ORNL  

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Quantum Condensed Matter Division SHARE Quantum Condensed Matter Division QCMD Director Steve Nagler The Quantum Condensed Matter Division (QCMD) enables and conducts a broad...

91

Nuclear Science and Technology Division - Home page  

NLE Websites -- All DOE Office Websites (Extended Search)

image image image - mural in bldg 5200 image image Fuels, Isotopes, and Nuclear Materials image Fuels, Isotopes, and Nuclear Materials Nuclear System Analysis, Design, and Safety image Nuclear System Analysis, Design, and Safety WELCOME Performing basic and applied R&D for the Department of Energy, the National Nuclear Security Administration, and other government agencies, as well as supporting and leveraging industrial partnerships Mission Statement The Nuclear Science and Technology Division at Oak Ridge National Laboratory will provide leading-edge science, technology, and engineering research that support our Nation's nuclear science and technology enterprise across a broad spectrum of applications including but not limited to advanced nuclear power systems, nuclear medicine,and nuclear

92

X-ray Science Division Seminars and Presentations | Advanced Photon Source  

NLE Websites -- All DOE Office Websites (Extended Search)

XSD Seminars XSD Seminars XSD Seminars are an open forum where speakers from the U.S. and abroad, as well as XSD, present their latest research. All are cordially invited to attend. Also available in iCalendar formats. To report an event that is not listed, contact webmaster. Upcoming Jan 13 Monday Engineering the Elasticity of Soft Colloidal Materials Through Surface Modification and Shape Anisotropy Speaker: Lillian C. Hsiao, University of Michigan, Ann Arbor XSD Presentation 401/A1100 @ 11:00 AM View Description Designing complex fluids has always involved the arduous manipulation of system-specific parameters. Recently, we developed a general correlation to predict the flow behavior of a range of soft matter based on their microstructure. By applying the framework of structural rigidity at the

93

Energy and Transportation Science Division (ETSD)  

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Contact Us Contact Us Research Groups Building Technologies Research & Integration Fuels, Engines, & Emissions Research Center for Transportation Analysis Center for Sustainable Industry and Manufacturing Working with Us Employment Opportunities Organization Chart ETSD Staff Only Research Groups Building Technologies Research & Integration Fuels, Engines, & Emissions Research Center for Transportation Analysis Center for Sustainable Industry and Manufacturing Energy and Transportation Science Division News and Events Studies quantify the effect of increasing highway speed on fuel economy WUFI ("Warme und Feuchte Instationar," or transient heat and moisture). A family of PC-based software tools jointly developed by Germany's Fraunhofer Institute for Building Physics and ORNL,...

94

X-ray science taps bug biology to design better materials and reduce  

NLE Websites -- All DOE Office Websites (Extended Search)

News News Press Releases Feature Stories In the News Experts Guide Media Contacts Social Media Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Internship Caddiesflies spin an adhesive silk underwater to build nets to capture food and build protective shelter. Pictured is that silk magnified. Courtesy: Bennett Addison. Click to enlarge. Caddiesflies spin an adhesive silk underwater to build nets to capture food and build protective shelter. Pictured is that silk magnified. Courtesy: Bennett Addison. Click to enlarge. "(Caddisfly silk) is really not much stronger than super glue, but try to put super glue in your bathtub without it ever getting a chance to dry," says Jeff Yarger, professor of chemistry, biochemistry and physics at Arizona State University. Courtesy: Bennett Addison. Click to enlarge.

95

Earth Sciences Division Research Summaries 2006-2007  

E-Print Network (OSTI)

Brookhaven National Laboratory BTC—breakthrough curve(s) BUD—Berkeley Unexploded-ordnance Discriminator BWC—Berkeley Water Center Earth Sciences Division Berkeley Lab

DePaolo, Donald

2008-01-01T23:59:59.000Z

96

64 _____________________________________Math & Computational Sciences Division High Performance Computing and Visualization  

E-Print Network (OSTI)

64 _____________________________________Math & Computational Sciences Division High Performance Computing and Visualization Research and Development in Visual Analysis Judith Devaney Terrence Griffin John

Perkins, Richard A.

97

Earth Sciences Division Research Summaries 2002-2003  

NLE Websites -- All DOE Office Websites (Extended Search)

logo Lawrence Berkeley National Laboratory Earth Sciences Division Questions & Comments | Privacy & Security Notice You are using IE6. Older browsers present a security risk to...

98

Iver Anderson, Division of Materials Sciences and Engineering...  

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Iver Anderson, Division of Materials Sciences and Engineering, The Ames Laboratory, Current and Future Direction in Processing Rare Earth Alloys for Clean Energy Applications Iver...

99

Materials Science and Technology Division - Physical Sciences Directorate -  

NLE Websites -- All DOE Office Websites (Extended Search)

MTG MTG For the Public News & Highlights Publications Seminars Workshops Our People Group Leader, Staff Members Find People Fact Sheet Energy Frontier Research Center Center for Defect Physics (EFRC) Related Groups Computational Materials Science Group (CSMD) Nanomaterials Theory Institute (CNMS) Single Crystal Diffraction Group (NScD) University of Tennesee (MSE) ORNL Materials in Extreme Environments Other Useful Links American Physical Society DOE Office of Science Institute of Physics Office of Basic Energy Sciences National Energy Research Scientific Computing Center The Minerals, Metals & Materials Society U.S. Department of Energy Advanced Materials Group In The News PSD Directorate › MST Division › Materials Theory Group The Materials Theory Group (MTG) of the Materials Science and Technology

100

Quantum Condensed Matter Division | ORNL Neutron Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

Quantum Condensed Matter Division Steve Nagler, QCMD Director QCMD Director Steve Nagler. The Quantum Condensed Matter Division (QCMD) enables and conducts a broad program of...

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Berkeley Lab Earth Sciences Division - Resources - Workplace...  

NLE Websites -- All DOE Office Websites (Extended Search)

Ergo Advocates Division Safety Committee Division Support Contacts ESD Organization Chart Environment, Health & Safety ESD EH&S LBNL EH&S Facilities Management Building...

102

Proposal to DOE Basic Energy Sciences: Ultrafast X-ray science facility at the Advanced Light Source  

E-Print Network (OSTI)

pressure transformations of CdSe nanocrystals,” Phys. Rev.structural transformation in CdSe nanocrystals under highto rock salt transformation in CdSe nanocrystals,” Science,

2001-01-01T23:59:59.000Z

103

Nuclear Science Division 1994 annual report  

Science Conference Proceedings (OSTI)

This report describes the activities of the Nuclear Science Division for the period of January 1, 1994, to December 31, 1994. This was a time of significant accomplishment for all of the programs in the Division. Assembly of the solar neutrino detector at the Sudbury Neutrino Observatory is well under way. All of the components fabricated by LBL were shipped to Sudbury early in the year and our efforts are now divided between assisting the assembly of the detector and preparing software for data analysis once the detector is operational in 1996. Much of the activity at the 88-Inch Cyclotron centered on Gammasphere. The {open_quotes}early implementation{close_quotes} phase of the detector ended in September. This phase was extremely successful, involving over 60 experiments with nearly 200 users from 37 institutions worldwide. The mechanical structure was installed and the final electronic system is expected to operate in March 1995. The Division concurrently hosted a conference on physics for large {gamma}-ray detector arrays at the Clark Kerr Campus at UC Berkeley in August. This was a very successful meeting, reflecting the enthusiasm for this field worldwide. Also at the Cyclotron, the progress toward weak interaction experiments using ultra-thin sources passed a major milestone with the trapping of radioactive {sup 21}Na atoms. We are now engaged in a major upgrade of the experimental area and the outlook is very promising for these novel experiments. Another highlight of research at the Cyclotron was the confirmation of element 106. This development allowed the original LLNL/LBL discovery team to move forward with their proposal to name this element seaborgium.

Myers, W.D. [ed.

1995-06-01T23:59:59.000Z

104

Materials Science Division Project Safety Review  

NLE Websites -- All DOE Office Websites (Extended Search)

Miller, Electron Microscopes Miller, Electron Microscopes Project No. 20006.3 Materials Science Division Project Safety Review Safety Analysis Form (03/08) Date of Submission March 12, 2010 FWP No.: 58405 Project Title User Experimental Work with Electron Microscopes in the Electron Microscopy Center This Safety Analysis Form (SAF) supersedes previous versions of 20006 and its modifications. Is this a (check one) new submission renewal supplemental modification X Principal Investigator(s) Dean Miller Other Participants (excluding administrative support personnel) EMC staff and EMC users (Attach participant signature sheet) Project dates: Start: March 2010 End: Open-ended This form is to be completed for all new investigations or experimental projects that are conducted in MSD laboratories, and for all ongoing such projects that undergo significant change from their original

105

Biosciences Division - Energy and Environmental Sciences Directorate...  

NLE Websites -- All DOE Office Websites (Extended Search)

with the environment. The division has expertise and special facilities in genomics, computational biology, microbiology, microbial ecology, biophysics and structural...

106

Materials Science and Technology Division - Physical Sciences Directorate -  

NLE Websites -- All DOE Office Websites (Extended Search)

CST CST For the Public Publications Visiting ORNL For Researchers Profiles Group Leader Staff Members Facilities For Industry Capabilities Current Research Materials Our People Group Leader, Staff Members Find People Fact Sheet Group Poster Energy Frontier Research Center Center for Defect Physics (EFRC) User Facilities High Temperature Materials Laboratory (HTML) Shared Research Equipment User Facility (ShaRE) Related User Facilities Center for Nanophase Materials Sciences (CNMS) High Flux Isotope Reactor (HFIR) Spallation Neutron Source (SNS) Seminars and Announcements MSTD Internal Recent News & Features News Releases Archive | Features Archive PSD Directorate › MST Division › Corrosion Science and Technology Group Corrosion Kinetics in simulated high-temperature/high-pressure environments

107

For Prospective Users: Learn about x-ray research  

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research in the fields of materials science; biological science; physics; chemistry; environmental, geophysical, and planetary science; and innovative x-ray instrumentation....

108

ISM Plan - Chemical Sciences Division - Revised May 2012  

NLE Websites -- All DOE Office Websites (Extended Search)

ISM Plan - Chemical Sciences Division - Revised May 2012 ISM Plan - Chemical Sciences Division - Revised May 2012 Page 2 of 25 Page intentionally left blank ISM Plan - Chemical Sciences Division - Revised May 2012 Page 3 of 25 Chemical Sciences Division ISM Plan May 2012 Page 1.0 Policy Statement 5 2.0 Description of Division/Organization, Mission and Scope of Work 5 3.0 Accountability 7 3.01 Line Management Responsibility and Accountability 8 3.02 Specific Principal Investigator Responsibilities 8 3.03 Work Lead EH&S Responsibilities 8 3.04 CSD personnel EH&S Responsibilities (Non-Supervisor or Work Lead) 9 3.05 Students 10 3.06 Work Off-Site 10 3.07 Telecommuting 11

109

Chemical Sciences Division | Advanced Materials |ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

at the fluid-solid interface that will enable transformative advances in electrical energy storage and catalysis. The division also provides analytical support and leadership...

110

Berkeley Lab Earth Sciences Division - Research - Programs - Climate &  

NLE Websites -- All DOE Office Websites (Extended Search)

research > programs > climate_carbon_sciences research > programs > climate_carbon_sciences Climate & Carbon Sciences Program Research Areas The Carbon Cycle Better Models for Robust Climate Projection Climate Science for a Sustainable Energy Future Projects Contacts Facilities & Centers Publications Climate & Carbon Sciences Program Climate & Carbon Sciences Program The global carbon cycle strongly regulates earth's climate, while anthropogenic disturbance of the carbon cycle is the main cause of current and predicted climate change. At the same time, humans depend on the terrestrial carbon cycle for food, fiber, energy, and pharmaceuticals. The Climate and Carbon Sciences Program of the Earth Sciences Division at Lawrence Berkeley National Laboratory encompasses both atmospheric and

111

Nuclear Science Division, 1995--1996 annual report  

Science Conference Proceedings (OSTI)

This report describes the activities of the Nuclear Science Division (NSD) for the two-year period, January 1, 1995 to January 1, 1997. This was a time of major accomplishments for all research programs in the Division-many of which are highlighted in the reports of this document.

Poskanzer, A.M. [ed.

1997-02-01T23:59:59.000Z

112

Materials Science and Technology Division - Physical Sciences Directorate -  

NLE Websites -- All DOE Office Websites (Extended Search)

TFN TFN For the Public Visiting ORNL For Researchers Profiles Group Leader Staff Members For Industry Core Compentencies Our People Group Leader, Staff Members Find People Energy Frontier Research Center Center for Defect Physics (EFRC) User Facilities High Temperature Materials Laboratory (HTML) Shared Research Equipment User Facility (ShaRE) Related User Facilities Center for Nanophase Materials Sciences (CNMS) High Flux Isotope Reactor (HFIR) Spallation Neutron Source (SNS) Seminars and Announcements MSTD Internal Recent News & Features News Releases Archive | Features Archive PSD Directorate › MST Division › Thin Films and Nanostructures Group Complex oxide thin films and heterostructures are important for not only fundamental physics, but also a wide range of exciting opportunities in

113

Materials Science and Technology Division - Physical Sciences Directorate -  

NLE Websites -- All DOE Office Websites (Extended Search)

Facilities Facilities Selected Publications Our People Contacts by Group Leader, Staff Members Find People Energy Frontier Research Center Center for Defect Physics (EFRC) User Facilities High Temperature Materials Laboratory (HTML) Shared Research Equipment ShaRE User Facility (ShaRE) Related User Facilities Center for Nanophase Materials Sciences (CNMS) High Flux Isotope Reactor (HFIR) Spallation Neutron Source (SNS) Correlated Electron Materials Group In The News PSD Directorate › MST Division › Correlated Electron Materials Group CdSiP2Tin Flux The ultimate aim of our research is to attain a better understanding of complex materials, particularly those that are important to clean energy technologies. For example, we are currently investigating the relationship between magnetism and superconductivity, new mechanisms for enhancing

114

Materials Science and Technology Division - Physical Sciences Directorate -  

NLE Websites -- All DOE Office Websites (Extended Search)

ABD ABD For the Public Visiting ORNL For Researchers Profiles Group Leader Staff Members Facilities For Industry Research Projects Our People Group Leader, Staff Members, Facilities Find People Energy Frontier Research Center Center for Defect Physics (EFRC) User Facilities High Temperature Materials Laboratory (HTML) Shared Research Equipment User Facility (ShaRE) Related User Facilities Center for Nanophase Materials Sciences (CNMS) High Flux Isotope Reactor (HFIR) Spallation Neutron Source (SNS) Seminars and Announcements MSTD Internal Recent News & Features News Releases Archive | Features Archive PSD Directorate › MST Division › Alloy Behavior and Design Group The principal technical contact for discussing potential projects in the Alloy Behavior and Design Group is Dr. Easo P. George, Group Leader.

115

Earth Sciences Division annual report 1981. [Lead abstract  

DOE Green Energy (OSTI)

Separate abstracts were prepared for the 59 papers of the 1981 annual report of the Earth Sciences Division at Lawrence Berkeley Laboratory. The general topics covered included nuclear waste isolation, geophysics and reservoir engineering, and geosciences. (KRM)

Not Available

1982-09-01T23:59:59.000Z

116

Chemical Sciences Division annual report 1994  

SciTech Connect

The division is one of ten LBL research divisions. It is composed of individual research groups organized into 5 scientific areas: chemical physics, inorganic/organometallic chemistry, actinide chemistry, atomic physics, and chemical engineering. Studies include structure and reactivity of critical reaction intermediates, transients and dynamics of elementary chemical reactions, and heterogeneous and homogeneous catalysis. Work for others included studies of superconducting properties of high-{Tc} oxides. In FY 1994, the division neared completion of two end-stations and a beamline for the Advanced Light Source, which will be used for combustion and other studies. This document presents summaries of the studies.

NONE

1995-06-01T23:59:59.000Z

117

Research Reactors Division | ORNL Neutron Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

Reactors Division (RRD) is responsible for operation of the High Flux Isotope Reactor (HFIR). Operating at 85 MW, HFIR is the highest flux reactor-based source of neutrons for...

118

Research Accelerator Division | Neutron Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Kevin Jones The Research Accelerator Division is responsible for operation of the SNS accelerator complex, which consists of a negative hydrogen-ion injector, a 1 GeV linear...

119

Research Accelerator Division | ORNL Neutron Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

Kevin Jones. The Research Accelerator Division (RAD) is responsible for operation of the SNS accelerator complex, which consists of a negative hydrogen-ion injector, a 1 GeV linear...

120

Biology and Soft Matter Division - ORNL Neutron Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

Home › Neutron Sciences Directorate › Biology and Soft Matter Division Home › Neutron Sciences Directorate › Biology and Soft Matter Division Biology and Soft Matter Division Paul Langan, BSMD Director BSMD Director Paul Langan. The Biology and Soft Matter Division (BSMD) operates an external user program for biological and soft matter research using neutron techniques at SNS and HFIR. Division personnel enable the research initiated by external users by acting as instrument responsible scientists and local contacts on a range of different beam lines. BSMD works closely with the Center for Structural Molecular Biology. Diffraction, small-angle scattering, and reflectometry are ideal methods for studying structure and organization from the atomic to the micron length scales, and neutron spectroscopic methods characterize self and

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

The Center for X-ray Optics - Now hiring engineers. Apply Today.  

NLE Websites -- All DOE Office Websites (Extended Search)

Database Nanomagnetism X-Ray Microscopy EUV Lithography EUV Mask Database Nanomagnetism X-Ray Microscopy EUV Lithography EUV Mask Imaging Reflectometry Zoneplate Lenses Coherent Optics Nanofabrication Optical Coatings Engineering Education Careers Publications Contact LBNL-Logo The Center for X-Ray Optics is a multi-disciplined research group within Lawrence Berkeley National Laboratory's (LBNL) Materials Sciences Division (MSD). Notice to users. Precision Engineering Building the tools that make nanoscience possible. A high-precision stage fabricated by CXRO's Instrument Fabrication Facility Zone plates Diffractive lenses for a new generation of x-ray beamlines. SEM image of a zoneplate fabricated by CXRO Interferometry Wavefront control with sub-angstrom sensitivity Null interferogram, in preparation for EUV metrology of the SEMATECH Berkeley Microfield Exposure Tool (MET)

122

Probing Material Reactivity Using X-ray Pair Distribution Function Methods  

NLE Websites -- All DOE Office Websites (Extended Search)

Material Reactivity Using X-ray Pair Distribution Material Reactivity Using X-ray Pair Distribution Function Methods Karena W. Chapman X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA Understanding how advanced functional materials react and transform, at an atomic scale, is a characterization challenge with many diverse phenomena possible; components with varying particle size, morphology, and microstructure can evolve from multi-atom clusters to multi-million atom crystals. The pair distribution function (PDF) method shows great promise for providing quantitative insight such reactions. Recent advances in experimental methods, have improved the efficiency of X-ray PDF measurements, to allow time-resolved experiments with sufficient resolution to study reactions in solid

123

APS Bending Magnet X-rays and  

NLE Websites -- All DOE Office Websites (Extended Search)

Irradiation of Nd-Fe-B Permanent Magnets with Irradiation of Nd-Fe-B Permanent Magnets with APS Bending Magnet X-rays and 60 Co γ-rays J. Alderman and P.K. Job APS Operations Division Advanced Photon Source J. Puhl Ionizing Radiation Division National Institute of Standards and Technology June 2000 Table of Contents Introduction Radiation-Induced Demagnetization of Permanent Magnets Resources Required γ-ray Irradiation Results and Analysis of γ-ray Irradiation X-ray Irradiation Results and Analysis of X-ray Irradiation Summary and Conclusions Acknowledgements References Tables and Figures Introduction The Advanced Photon Source (APS), as well as other third-generation synchrotron light sources, uses permanent magnets in the insertion devices to produce x-rays for scientific

124

MEDICAL SCIENCES DIVISION SENIOR CLERICAL OFFICER (OXFORD MEDICAL ALUMNI)  

E-Print Network (OSTI)

1 MEDICAL SCIENCES DIVISION SENIOR CLERICAL OFFICER (OXFORD MEDICAL ALUMNI) Grade 4 , Salary. Oxford Medical Alumni exists to advance the cause of medical education by promoting the interests to establish a mutually beneficial relationship between the Medical Sciences and its alumni and to promote

Oxford, University of

125

Biological Imaging by Soft X-Ray Diffraction Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Imaging by Soft X-Ray Diffraction Microscopy Print Electron and x-ray microscopes are a valuable tool for both the life and materials sciences, but they are limited in...

126

X-Ray Topography  

Science Conference Proceedings (OSTI)

Sep 17, 2009 ... Stress Mapping Analysis by Ray Tracing (SMART): A New Technique ... technique of synchrotron X-ray topography, where a grid made out of ...

127

Quantum Condensed Matter Division | Neutron Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

instruments used for diffraction and inelastic neutron scattering at both SNS and HFIR. The science conducted by our staff members emphasizes materials with emergent...

128

Materials Science and Engineering Division Homepage  

Science Conference Proceedings (OSTI)

... those engaged in the materials science and engineering enterprise to ... that solve problems in areas such as energy, electronics, transportation and ...

2013-03-07T23:59:59.000Z

129

Instrument and Source Design Division | ORNL Neutron Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

Ron Crone, RRD Director Ron Crone, RRD Director ISDD Director Ron Crone. Instrument and Source Design Division The Instrument and Source Design Division (ISDD) supports the engineering and development of scientific instruments at the High Flux Isotope Reactor and the Spallation Neutron Source. ISDD continuously develops facilities and capabilities associated with neutron science through research and development. Organization Chart A PDF version of the ISDD Organization Chart is available. Key Division Contacts Director Ron Crone Administrative Assistant Wendy Brooks HFIR Instrument Engineering Doug Selby SNS Instrument Engineering David Vandergriff Instrumentation Projects and Development Ken Herwig Project Management/Operations and Analysis Barbara Thibadeau Source Development and Engineering Analysis Phil Ferguson

130

X-ray beamsplitter  

DOE Patents (OSTI)

An x-ray beamsplitter which splits an x-ray beam into two coherent parts by reflecting and transmitting some fraction of an incident beam has applications for x-ray interferometry, x-ray holography, x-ray beam manipulation, and x-ray laser cavity output couplers. The beamsplitter is formed of a wavelength selective multilayer thin film supported by a very thin x-ray transparent membrane. The beamsplitter resonantly transmits and reflects x-rays through thin film interference effects. A thin film is formed of 5-50 pairs of alternate Mo/Si layers with a period of 20-250 A. The support membrane is 10-200 nm of silicon nitride or boron nitride. The multilayer/support membrane structure is formed across a window in a substrate by first forming the structure on a solid substrate and then forming a window in the substrate to leave a free-standing structure over the window.

Ceglio, Natale M. (Livermore, CA); Stearns, Daniel S. (Mountain View, CA); Hawryluk, Andrew M. (Modesto, CA); Barbee, Jr., Troy W. (Palo Alto, CA)

1989-01-01T23:59:59.000Z

131

LANL | Earth and Environmental Sciences Division (EES)  

NLE Websites -- All DOE Office Websites (Extended Search)

EES Capabilities EES Capabilities To connect to an expanded list of key capabilities and the people at Los Alamos National Laboratory who have experience in those areas, use our Capabilities Search feature. search Click on the links below to explore our major capabilities and their research applications. Each capabilities page is cross-linked to relevant thrust development activities within EES Division. Computational Geoscience Earth Surface & Subsurface Characterization Los Alamos Seismic Network (LASN) Atmosphere, Environment & Ecosystems Imaging & Analysis of Earth & Atmosphere Signatures Energy, Earth & Environmental Systems Analysis Waste Characterization & Management Medical Ultrasound Imaging Carbon Sequestration Time Reversal More on Partnering in Technology at Los Alamos National Laboratory

132

X-ray generator  

DOE Patents (OSTI)

Apparatus and method for producing coherent secondary x-rays that are controlled as to direction by illuminating a mixture of high z and low z gases with an intense burst of primary x-rays. The primary x-rays are produced with a laser activated plasma, and these x-rays strip off the electrons of the high z atoms in the lasing medium, while the low z atoms retain their electrons. The neutral atoms transfer electrons to highly excited states of the highly striped high z ions giving an inverted population which produces the desired coherent x-rays. In one embodiment, a laser, light beam provides a laser spark that produces the intense burst of coherent x-rays that illuminates the mixture of high z and low z gases, whereby the high z atoms are stripped while the low z ones are not, giving the desired mixture of highly ionized and neutral atoms. To this end, the laser spark is produced by injecting a laser light beam, or a plurality of beams, into a first gas in a cylindrical container having an adjacent second gas layer co-axial therewith, the laser producing a plasma and the intense primary x-rays in the first gas, and the second gas containing the high and low atomic number elements for receiving the primary x-rays, whereupon the secondary x-rays are produced therein by stripping desired ions in a neutral gas and transfer of electrons to highly excited states of the stripped ions from the unionized atoms. Means for magnetically confining and stabilizing the plasma are disclosed for controlling the direction of the x-rays.

Dawson, John M. (Los Angeles, CA)

1976-01-01T23:59:59.000Z

133

Materials Science and Technology Division - Physical Sciences Directorate -  

NLE Websites -- All DOE Office Websites (Extended Search)

RSG RSG For Public Research Support Services Environmental, Safety, and Health Facilities Operations Management Information Technology Nuclear & Radiological Control Procurement & Engineering Services Quality Assurance Services Training & Support Services For Researchers Profiles Group Leader AGR Program POC Avid+ Coordinator BUS Chemical Recycling and Used Oil Coordinator Business Cards Coordinator Chemical Hygiene Officer Computer Hardware Issues Technician Craft Work POC Credit Card/PR Coordinator Division Nuclear Criticality Safety Manager (AGR Program) Division Training Officer Division Safety Officer Electrical Safety POC Emergency Preparedness Coordinator Engineering Services Coordinator Environmental Protection Officers ESH Checklists for Procured Services POC

134

Earth Sciences Division. Annual report 1979  

DOE Green Energy (OSTI)

This annual report contains articles describing the research programs conducted during the year. Major areas of interest include geothermal exploration technology, geothermal energy conversion technology, reservoir engineering, geothermal environmental research, basic geosciences studies, applied geosciences studies, nuclear waste isolation, and marine sciences. (ACR)

Not Available

1980-07-01T23:59:59.000Z

135

Geosciences program annual report 1978. [LBL Earth Sciences Division  

DOE Green Energy (OSTI)

This report is a reprint of the Geosciences section of the LBL Earth Sciences Division Annual Report 1978 (LBL-8648). It contains summary papers that describe fundamental studies addressing a variety of earth science problems of interest to the DOE. They have applications in such diverse areas as geothermal energy, oil recovery, in situ coal gasification, uranium resource evaluation and recovery, and earthquake prediction. Completed work has been reported or likely will be in the usual channels. (RWR)

Witherspoon, P.A.

1978-01-01T23:59:59.000Z

136

MATERIALS SCIENCE AND TECHNOLOGY DIVISION March 1, 2011  

E-Print Network (OSTI)

(20) B.L. MURPHY MATERIALS THEORY G.M. STOCKS* A.R. STRANGE* F.W. AVERILL (12) M. BAJDICH (3) K. YAMAMOTO NUCLEAR MATERIALS SCIENCE AND TECHNOLOGY R.K. NANSTAD B.J. WADDELL* J.H. BAEK (5) J.T. BUSBY (31 19 NUCLEAR AND RADIOLOGICAL PROTECTION DIVISION 20 TECHNICIAN INTERN PROGRAM 21 CENTER FOR NANOPHASE

137

X-Ray Data from the X-Ray Data Booklet Online  

DOE Data Explorer (OSTI)

The original X-Ray Data Booklet, published in 1985, became a classic reference source. The online version has been significantly revised and updated to reflect today's science. Hundreds of pages of authoritative data provide the x-ray properties of elements, information on synchrotron radiation, scattering processes, optics and detectors, and other related calculations, formulas, and data tables.

Thompson, Albert C.; Attwood, David T.; Gullikson, Eric M.; Howells, Malcolm R.; Kortright, Jeffrey B.; Robinson, Arthur L.; Underwood, James H.; Kim, Kwang-Je; Kirz, Janos; Lindau, Ingolf; Pianetta, Piero; Winick, Herman; Williams, Gwyn P.; Scofield, James H.

138

Berkeley Lab Earth Sciences Division - Departments - Ecology  

NLE Websites -- All DOE Office Websites (Extended Search)

departments > ecology departments > ecology Ecology Department Core Capabilities Advanced Technology Bioenergy Biofuels Human Health Soil Systems Water Resources People Facilities, Centers & Labs Publications Ecology Department Principal Investigators Gary Andersen Harry Beller Nicholas Bouskill Eoin Brodie Romy Chakraborty Eric Dubinsky Hoi-Ying Holman Christer Jansson Janet Jansson Nigel Quinn Tamas Torok Ecology Department Ecology Department Ecology Department Ecology Department Ecology Department Ecology Department Ecology Department Ecology Department Ecology Department Ecology Department Ecology Department Historical Background ecology comic In 1995 the Center for Environmental Biotechnology was set up as a multidivisonal center under the direction of Dr. Jennie Hunter-Cevera. In 1998, the Ecology Department was created within the Earth Sciences

139

Materials Science and Technology Division - Physical Sciences Directorate -  

NLE Websites -- All DOE Office Websites (Extended Search)

FRM FRM For the Public Awards and Honors Highlights Publications U.S. Program Planning Visiting ORNL For Researchers Profiles Program Manager Program Management ORNL Facilities Low Activation Materials Development and Analysis (LAMDA) Laboratory Irradiated Materials Examination & Testing (IMET) Facility Fracture Mechanics Laboratory High Flux Isotope Reactor (HFIR) (Research Reactors Division) HFIR Rabbit Irradiation Vehicles Accessing LAMDA Facility Our People Program Manager, Program Management, Facilities Find People ORNL Facilities Low Activation Materials Development and Analysis (LAMDA) Laboratory Irradiated Materials Examination & Testing (IMET) Facility Fracture Mechanics Laboratory High Flux Isotope Reactor (HFIR) (Research Reactors Division) HFIR Rabbit Irradiation Vehicles

140

A. A. Abrikosov Materials Science Division Argonne National Moratory  

NLE Websites -- All DOE Office Websites (Extended Search)

Developments in the Theory of HTSC Developments in the Theory of HTSC A. A. Abrikosov Materials Science Division Argonne National Moratory Argonne, IL 60439 Distribution: 1-2. M. J. Masek 3. B. D. Dunlap 4. G. W. Crabtree 5 . A. A. Abrikosov 6 - Editorial Office 7. Authors September, 1994 This work is supported by the Division of Materials Sciences, Office of Basic Energy Sciences of DOE, under contract No. W-31- 109-ENG-38, DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, or as sun^^ any legal liabili- ty or responsibility for the accuracy, completenes, or usefulness of any information, appa-

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Environmental Sciences Division annual progress report for period ending September 30, 1982. Environmental Sciences Division Publication No. 2090. [Lead abstract  

SciTech Connect

Separate abstracts were prepared for 12 of the 14 sections of the Environmental Sciences Division annual progress report. The other 2 sections deal with educational activities. The programs discussed deal with advanced fuel energy, toxic substances, environmental impacts of various energy technologies, biomass, low-level radioactive waste management, the global carbon cycle, and aquatic and terrestrial ecology. (KRM)

Not Available

1983-04-01T23:59:59.000Z

142

Gamma Radiation & X-Rays  

NLE Websites -- All DOE Office Websites (Extended Search)

Gamma Radiation and X-Rays 1. Gamma radiation and X-rays are electromagnetic radiation like visible light, radio waves, and ultraviolet light. These electromagnetic radiations...

143

Optical and X-ray Imaging Techniques for Material Characterization  

Science Conference Proceedings (OSTI)

Hyperspectral CARS Microscopy in the Fingerprint Region · In Situ X-ray ... Opportunities for Multimodal CARS Microscopy in Materials Science · Photoemission ...

144

Biological Systems Science Division (BSSD) | U.S. DOE Office of Science  

Office of Science (SC) Website

Biological and Environmental Research (BER) BER Home About Research Research Abstracts Searchable Archive of BER Highlights External link Biological Systems Science Division (BSSD) Genomic Science DOE Bioenergy Research Centers Radiochemistry & Imaging Instrumentation Radiobiology: Low Dose Radiation Research DOE Human Subjects Protection Program Structural Biology DOE Joint Genome Institute Climate and Environmental Sciences Division (CESD) Facilities Science Highlights Benefits of BER Funding Opportunities Biological & Environmental Research Advisory Committee (BERAC) News & Resources Contact Information Biological and Environmental Research U.S. Department of Energy SC-23/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3251 F: (301)

145

Chemical Sciences, Geosciences, & Biosciences (CSGB) Division Homepage |  

Office of Science (SC) Website

CSGB Home CSGB Home Chemical Sciences, Geosciences, & Biosciences (CSGB) Division CSGB Home About Research Areas Scientific Highlights Reports & Activities Principal Investigators' Meetings BES Home Print Text Size: A A A RSS Feeds FeedbackShare Page Research Needs Workshop Reports Workshop Reports The Chemical Sciences, Geosciences, and Biosciences (CSGB) Division supports experimental, theoretical, and computational research to provide fundamental understanding of chemical transformations and energy flow in systems relevant to DOE missions. This knowledge serves as a basis for the development of new processes for the generation, storage, and use of energy and for mitigation of the environmental impacts of energy use. (details) The CSGB research portfolio consists of the research focus areas in the

146

Environmental Sciences Division: Summaries of research in FY 1996  

SciTech Connect

This document describes the Fiscal Year 1996 activities and products of the Environmental Sciences Division, Office of Biological and Environmental Research, Office of Energy Research. The report is organized into four main sections. The introduction identifies the basic program structure, describes the programs of the Environmental Sciences Division, and provides the level of effort for each program area. The research areas and project descriptions section gives program contact information, and provides descriptions of individual research projects including: three-year funding history, research objective and approach used in each project, and results to date. Appendixes provide postal and e-mail addresses for principal investigators and define acronyms used in the text. The indexes provide indexes of principal investigators, research institutions, and keywords for easy reference. Research projects are related to climatic change and remedial action.

NONE

1997-06-01T23:59:59.000Z

147

Atmospheric sciences division. Annual report, fiscal year 1981  

SciTech Connect

The research activities of the Atmospheric Sciences Division of the Department of Energy and Environment for FY 1981 are presented. Facilities and major items of equipment are described. Research programs are summarized in three categories, modeling, field and laboratory experiments and data management and analysis. Each program is also described individually with title, principal investigator, sponsor and funding levels for FY 1981 and FY 1982. Future plans are summarized. Publications for FY 1981 are listed with abstracts. A list of personnel is included.

Raynor, G.S. (ed.)

1981-12-01T23:59:59.000Z

148

X-ray microtomography  

SciTech Connect

In this tutorial, we describe X-ray microtomography as a technique to nondestructively characterize material microstructure in three dimensions at a micron level spatial resolution. While commercially available laboratory scale instrumentation is available, we focus our attention on synchrotron-based systems, where we can exploit a high flux, monochromatic X-ray beam to produce high fidelity three-dimensional images. A brief description of the physics and the mathematical analysis behind the technique is followed by example applications to specific materials characterization problems, with a particular focus on the utilization of three-dimensional image processing that can be used to extract a wide range of useful information.

Landis, Eric N., E-mail: landis@maine.edu [Department of Civil and Environmental Engineering, University of Maine, 5711 Boardman Hall, Orono, Maine 04469 (United States); Keane, Denis T., E-mail: dtkeane@northwestern.edu [Department of Materials Science and Engineering, Northwestern University (United States); DND-CAT, Advanced Photon Source, Argonne National Laboratory, Bldg. 432/A002, 9700 S. Cass Ave, Argonne, Illinois 60439 (United States)

2010-12-15T23:59:59.000Z

149

Ultra-short wavelength x-ray system  

DOE Patents (OSTI)

A method and apparatus to generate a beam of coherent light including x-rays or XUV by colliding a high-intensity laser pulse with an electron beam that is accelerated by a synchronized laser pulse. Applications include x-ray and EUV lithography, protein structural analysis, plasma diagnostics, x-ray diffraction, crack analysis, non-destructive testing, surface science and ultrafast science.

Umstadter, Donald (Ann Arbor, MI); He, Fei (Ann Arbor, MI); Lau, Yue-Ying (Potomac, MD)

2008-01-22T23:59:59.000Z

150

NIST Ionizing Radiation Division - 2001  

Science Conference Proceedings (OSTI)

... The Ionizing Radiation Division of the Physics Laboratory supports the ... meaningful, and compatible measurements of ionizing radiations (x rays ...

151

High Flux Water Window X-rays Driven by Ultrashort 1.8mm Laser ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2013. Symposium, Optical and X-ray Imaging Techniques for Material Characterization.

152

In Situ X-ray Nanocharacterization of Defects in Solar Cells  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2013. Symposium, Optical and X-ray Imaging Techniques for Material Characterization.

153

David Robertson Argonne National Laboratory Chemical Sciences and Engineering Division  

NLE Websites -- All DOE Office Websites (Extended Search)

Robertson Robertson Argonne National Laboratory Chemical Sciences and Engineering Division 9700 South Cass Avenue, Building 205 Argonne, IL 60439-4837 Phone: 630/252-7906; fax: 630/972-4468 e-mail: robertsond@anl.gov Professional Experience * May 2010-present: Argonne National Laboratory, Argonne, IL: Engineering Specialist, Electrochemical Analysis and Diagnostics Laboratory, Testing of advanced battery technologies, DOE contract deliverables, benchmarking of foreign battery technologies * July 2007-May 2010: LGCPI, Troy, MI: Electrical Engineering Manager, Lead the development, validation and integration of Battery Management and Control systems, electrical interfaces, wiring systems and sensing interfaces of large format lithium ion batteries for automotive and other applications.

154

Data processing guide for the Environmental Sciences Division  

SciTech Connect

The data processing guide provides information on the availability and use of computer facilities for Environmental Sciences Division (ESD) personnel. This guide addresses recent data processing developments in ESD, little-known capabilities for handling data and using programs, and illustrates the mechanics of these developments and capabilities. Some of the specific developments are: storing data or source code on tape or disk for insertion into a computer job stream, creating a DECSYSTEM10 file from punched paper tape, data storage and input using a computer terminal with cassette tapes, and generation of microfiche output.

Strand, R. H.; Olson, R. J.; Kumar, K. D.; Tharp, M. L.; Watts, J. A.; Griffith, N. A.; Anderson, R. M.

1977-08-01T23:59:59.000Z

155

Materials Science and Technology Division - Physical Sciences Directorate -  

NLE Websites -- All DOE Office Websites (Extended Search)

SPNM SPNM For the Public Awards Visiting ORNL For Researchers Profiles Group Leader Staff Members For Industry Capabilities Our People Group Leader, Staff Members Find People Energy Frontier Research Center Center for Defect Physics (EFRC) User Facilities High Temperature Materials Laboratory (HTML) Shared Research Equipment User Facility (ShaRE) Related User Facilities Center for Nanophase Materials Sciences (CNMS) High Flux Isotope Reactor (HFIR) Spallation Neutron Source (SNS) Seminars and Announcements MSTD Internal Recent News & Features News Releases Archive | Features Archive | Honors and Awards Archive Lynn Boatner, Joanne Ramey, Hu Longmire, research featured in the 2013 Allied High Tech Products, Inc. Calendar in the form of a color micrograph for the month of March, 2013.

156

Committee for Limited Submissions in the Sciences and Engineering (ComLSSE) Professor R. Hampton, Division of Biological Sciences  

E-Print Network (OSTI)

Committee for Limited Submissions in the Sciences and Engineering (ComLSSE) AY10-11 Professor R. Hampton, Division of Biological Sciences Professor W. Hodgkiss, Scripps Institution of Oceanography, Chair Professor D. Kleinfeld, Division of Physical Sciences Professor M. Krstic, Jacobs School of Engineering

Gleeson, Joseph G.

157

Definition: X-Ray Diffraction (XRD) | Open Energy Information  

Open Energy Info (EERE)

X-Ray Diffraction (XRD) X-Ray Diffraction (XRD) Jump to: navigation, search Dictionary.png X-Ray Diffraction (XRD) X-Ray Diffraction (XRD) is a laboratory-based technique commonly used for identification of crystalline materials and analysis of unit cell dimensions. One of two primary types of XRD analysis (X-ray powder diffraction and single-crystal XRD) is commonly applied to samples to obtain specific information about the crystalline material under investigation. X-ray powder diffraction is widely used in geology, environmental science, material science, and engineering to rapidly identify unknown crystalline substances (typically in less than 20 minutes). A pure, finely ground, and homogenized sample is required for determination of the bulk composition. Additional uses include detailed

158

Environmental Sciences Division annual progress report for period ending September 30, 1992  

DOE Green Energy (OSTI)

This progress report summarizes the research and development activities conducted in the Environmental Sciences Division of Oak Ridge National Laboratory during fiscal year (FY) 1992, which which extended from October 1, 1991, through September 30, 1992. This report is structured to provide descriptions of current activities and accomplishments in each of the division`s major organizational units. Section activities are described in the Earth and Atmospheric sciences, ecosystem studies, Environmental analysis, environmental biotechnology, and division operations.

Not Available

1993-04-01T23:59:59.000Z

159

Fluctuation X-Ray Scattering  

SciTech Connect

The work supported by the grant was aimed at developing novel methods of finding the structures of biomolecules using x-rays from novel sources such as the x-ray free electron laser and modern synchrotrons

Saldin, PI: D. K.; Co-I's: J. C. H. Spence and P. Fromme

2013-01-25T23:59:59.000Z

160

X-ray Security Screening  

Science Conference Proceedings (OSTI)

National and International Standards for X-ray Security Screening Applications. Summary: The primary objective of this ...

2013-03-13T23:59:59.000Z

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Tunable X-ray source  

DOE Patents (OSTI)

A method for the production of X-ray bunches tunable in both time and energy level by generating multiple photon, X-ray, beams through the use of Thomson scattering. The method of the present invention simultaneously produces two X-ray pulses that are tunable in energy and/or time.

Boyce, James R. (Williamsburg, VA)

2011-02-08T23:59:59.000Z

162

Earth Sciences Division annual report, 1976. [Research programs in Earth sciences  

DOE Green Energy (OSTI)

This compilation lists abstracts of papers, internal reports, and talks presented during 1976 at national and international meetings by members of the Earth Sciences Division, Lawrence Livermore Laboratory. Subjects include: coal gasification, gas stimulation, geothermal fields, oil shale retorting, radioactive waste management, geochemistry, geophysics, seismology, explosive phenomenology, and miscellaneous studies.

Hornady, B.; Duba, A.

1977-05-20T23:59:59.000Z

163

Radiobiological studies using gamma and x rays.  

Science Conference Proceedings (OSTI)

There are approximately 500 self-shielded research irradiators used in various facilities throughout the U.S. These facilities use radioactive sources containing either 137Cs or 60Co for a variety of biological investigations. A report from the National Academy of Sciences[1] described the issues with security of particular radiation sources and the desire for their replacement. The participants in this effort prepared two peer-reviewed publications to document the results of radiobiological studies performed using photons from 320-kV x rays and 137Cs on cell cultures and mice. The effectiveness of X rays was shown to vary with cell type.

Potter, Charles Augustus; Longley, Susan W.; Scott, Bobby R. [Lovelace Respiratory Research Institute, Albuquerque, NM; Lin, Yong [Lovelace Respiratory Research Institute, Albuquerque, NM; Wilder, Julie [Lovelace Respiratory Research Institute, Albuquerque, NM; Hutt, Julie A. [Lovelace Respiratory Research Institute, Albuquerque, NM; Padilla, Mabel T. [Lovelace Respiratory Research Institute, Albuquerque, NM; Gott, Katherine M. [Lovelace Respiratory Research Institute, Albuquerque, NM

2013-02-01T23:59:59.000Z

164

Scanning x-ray microscope  

Science Conference Proceedings (OSTI)

A scanning x-ray microscope is described including: an x-ray source capable of emitting a beam of x-rays; a collimator positioned to receive the beam of x-rays and to collimate this beam, a focusing cone means to focus the beam of x-rays, directed by the collimator, onto a focal plane, a specimen mount for supporting a specimen in the focal plane to receive the focused beam of x-rays, and x-ray beam scanning means to relatively move the specimen and the focusing cone means and collimator to scan the focused x-ray beam across the specimen. A detector is disposed adjacent the specimen to detect flourescent photons emitted by the specimen upon exposure to the focused beam of x-rays to provide an electrical output representative of this detection. Means are included for displaying and/or recording the information provided by the output from the detector, as are means for providing information to the recording and/or display means representative of the scan rate and position of the focused x-ray beam relative to the specimen whereby the recording and/or display means can correlate the information received to record and/or display quantitive and distributive information as to the quantity and distribution of elements detected in the specimen. Preferably there is provided an x-ray beam modulation means upstream, relative to the direction of emission of the xray beam, of the focusing cone means.

Wang, C.

1982-02-23T23:59:59.000Z

165

X-ray lithography source  

SciTech Connect

A high-intensity, inexpensive X-ray source for X-ray lithography for the production of integrated circuits. Foil stacks are bombarded with a high-energy electron beam of 25 to 250 MeV to produce a flux of soft X-rays of 500 eV to 3 keV. Methods of increasing the total X-ray power and making the cross section of the X-ray beam uniform are described. Methods of obtaining the desired X-ray-beam field size, optimum frequency spectrum and elminating the neutron flux are all described. A method of obtaining a plurality of station operation is also described which makes the process more efficient and economical. The satisfying of these issues makes transition radiation an exellent moderate-priced X-ray source for lithography.

Piestrup, Melvin A. (Woodside, CA); Boyers, David G. (Mountain View, CA); Pincus, Cary (Sunnyvale, CA)

1991-01-01T23:59:59.000Z

166

X-ray lithography source  

DOE Patents (OSTI)

A high-intensity, inexpensive X-ray source for X-ray lithography for the production of integrated circuits is disclosed. Foil stacks are bombarded with a high-energy electron beam of 25 to 250 MeV to produce a flux of soft X-rays of 500 eV to 3 keV. Methods of increasing the total X-ray power and making the cross section of the X-ray beam uniform are described. Methods of obtaining the desired X-ray-beam field size, optimum frequency spectrum and eliminating the neutron flux are all described. A method of obtaining a plurality of station operation is also described which makes the process more efficient and economical. The satisfying of these issues makes transition radiation an excellent moderate-priced X-ray source for lithography. 26 figures.

Piestrup, M.A.; Boyers, D.G.; Pincus, C.

1991-12-31T23:59:59.000Z

167

Earth Sciences Division Research Summaries 2002-2003  

Science Conference Proceedings (OSTI)

Research in earth and atmospheric sciences is becoming increasingly important in light of the energy, climate change, and environmental issues facing the United States and the world. The development of new energy resources other than hydrocarbons and the safe disposal of nuclear waste and greenhouse gases (such as carbon dioxide and methane) are critical to the future energy needs and environmental safety of this planet. In addition, the cleanup of many contaminated sites in the U.S., along with the preservation and management of our water supply, remain key challenges for us as well as future generations. Addressing these energy, climate change, and environmental issues requires the timely integration of earth sciences' disciplines (such as geology, hydrology, oceanography, climatology, geophysics, geochemistry, geomechanics, ecology, and environmental sciences). This integration will involve focusing on fundamental crosscutting concerns that are common to many of these issues. A primary focus will be the characterization, imaging, and manipulation of fluids in the earth. Such capabilities are critical to many DOE applications, from environmental restoration to energy extraction and optimization. The Earth Sciences Division (ESD) of the Ernest Orlando Lawrence Berkeley National Laboratory (Berkeley Lab) is currently addressing many of the key technical issues described above. In this document, we present summaries of many of our current research projects. While it is not a complete accounting, it is representative of the nature and breadth of our research effort. We are proud of our scientific efforts, and we hope that you will find our research useful and exciting. Any comments on our research are appreciated and can be sent to me personally. This report is divided into five sections that correspond to the major research programs in the Earth Sciences Division: (1) Fundamental and Exploratory Research; (2) Nuclear Waste; (3) Energy Resources; (4) Environmental Remediation Technology; and (5) Climate Variability and Carbon Management. These programs draw from each of ESD's disciplinary departments: Microbial Ecology and Environmental Engineering, Geophysics and Geomechanics, Geochemistry, and Hydrogeology and Reservoir Dynamics. Short descriptions of these departments are provided as introductory material. A list of publications for the period from January 2002 to June 2003, along with a listing of our personnel, are appended to the end of this report.

Bodvarsson, G.S.

2003-11-01T23:59:59.000Z

168

Biological Imaging by Soft X-Ray Diffraction Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Imaging by Soft X-Ray Diffraction Microscopy Print Biological Imaging by Soft X-Ray Diffraction Microscopy Print Electron and x-ray microscopes are a valuable tool for both the life and materials sciences, but they are limited in their ability to image with nanometer-scale resolution in three dimensions nonperiodic objects that are several microns in size. To fill this gap, the technique of coherent x-ray diffraction imaging now under development takes advantage of the penetrating power of x rays while simultaneously removing the limitations imposed by lens-based optical systems. Researchers from Stony Brook University, in collaboration with scientists at the ALS and Cornell University, have taken a large step in this direction by using a lensless x-ray diffraction microscope to image a freeze-dried yeast cell to better than 30-nm resolution. Images were made at several angular orientations of the cell.

169

X-Ray Diffraction Microscopy of Magnetic Structures  

NLE Websites -- All DOE Office Websites (Extended Search)

X-Ray Diffraction Microscopy of Magnetic Structures Print X-Ray Diffraction Microscopy of Magnetic Structures Print science brief icon Scientists working at ALS Beamline 12.0.2.2 have demonstrated a new x-ray technique for producing short-exposure nanoscale images of the magnetic structure of materials. The new method combines aspects of coherent x-ray diffraction, which can determine 3-D charge distributions, and resonant magnetic scattering, which is sensitive to magnetic structures. Physicists have used coherent x-ray diffraction to measure the electron density of complicated molecules. The formula used to make these calculations contains terms that relate to the electron spin of magnetic atoms, but these terms are traditionally ignored since coherent x-ray diffraction has not been used to retrieve magnetic information. Using the full formula allows for the determination of not only the electron density, but also the magnetic spin distribution and its orientation.

170

X-Ray Diffraction Microscopy of Magnetic Structures  

NLE Websites -- All DOE Office Websites (Extended Search)

X-Ray Diffraction Microscopy of Magnetic Structures Print X-Ray Diffraction Microscopy of Magnetic Structures Print science brief icon Scientists working at ALS Beamline 12.0.2.2 have demonstrated a new x-ray technique for producing short-exposure nanoscale images of the magnetic structure of materials. The new method combines aspects of coherent x-ray diffraction, which can determine 3-D charge distributions, and resonant magnetic scattering, which is sensitive to magnetic structures. Physicists have used coherent x-ray diffraction to measure the electron density of complicated molecules. The formula used to make these calculations contains terms that relate to the electron spin of magnetic atoms, but these terms are traditionally ignored since coherent x-ray diffraction has not been used to retrieve magnetic information. Using the full formula allows for the determination of not only the electron density, but also the magnetic spin distribution and its orientation.

171

Biological Imaging by Soft X-Ray Diffraction Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Imaging by Soft X-Ray Diffraction Microscopy Print Biological Imaging by Soft X-Ray Diffraction Microscopy Print Electron and x-ray microscopes are a valuable tool for both the life and materials sciences, but they are limited in their ability to image with nanometer-scale resolution in three dimensions nonperiodic objects that are several microns in size. To fill this gap, the technique of coherent x-ray diffraction imaging now under development takes advantage of the penetrating power of x rays while simultaneously removing the limitations imposed by lens-based optical systems. Researchers from Stony Brook University, in collaboration with scientists at the ALS and Cornell University, have taken a large step in this direction by using a lensless x-ray diffraction microscope to image a freeze-dried yeast cell to better than 30-nm resolution. Images were made at several angular orientations of the cell.

172

Biological Imaging by Soft X-Ray Diffraction Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Imaging by Soft X-Ray Diffraction Microscopy Print Biological Imaging by Soft X-Ray Diffraction Microscopy Print Electron and x-ray microscopes are a valuable tool for both the life and materials sciences, but they are limited in their ability to image with nanometer-scale resolution in three dimensions nonperiodic objects that are several microns in size. To fill this gap, the technique of coherent x-ray diffraction imaging now under development takes advantage of the penetrating power of x rays while simultaneously removing the limitations imposed by lens-based optical systems. Researchers from Stony Brook University, in collaboration with scientists at the ALS and Cornell University, have taken a large step in this direction by using a lensless x-ray diffraction microscope to image a freeze-dried yeast cell to better than 30-nm resolution. Images were made at several angular orientations of the cell.

173

X-Ray Diffraction Microscopy of Magnetic Structures  

NLE Websites -- All DOE Office Websites (Extended Search)

X-Ray Diffraction Microscopy of Magnetic Structures Print X-Ray Diffraction Microscopy of Magnetic Structures Print science brief icon Scientists working at ALS Beamline 12.0.2.2 have demonstrated a new x-ray technique for producing short-exposure nanoscale images of the magnetic structure of materials. The new method combines aspects of coherent x-ray diffraction, which can determine 3-D charge distributions, and resonant magnetic scattering, which is sensitive to magnetic structures. Physicists have used coherent x-ray diffraction to measure the electron density of complicated molecules. The formula used to make these calculations contains terms that relate to the electron spin of magnetic atoms, but these terms are traditionally ignored since coherent x-ray diffraction has not been used to retrieve magnetic information. Using the full formula allows for the determination of not only the electron density, but also the magnetic spin distribution and its orientation.

174

Fabrication process for a gradient index x-ray lens  

DOE Patents (OSTI)

A process for fabricating high efficiency x-ray lenses that operate in the 0.5-4.0 keV region suitable for use in biological imaging, surface science, and x-ray lithography of integrated circuits. The gradient index x-ray optics fabrication process broadly involves co-sputtering multi-layers of film on a wire, followed by slicing and mounting on block, and then ion beam thinning to a thickness determined by periodic testing for efficiency. The process enables the fabrication of transmissive gradient index x-ray optics for the 0.5-4.0 keV energy range. This process allows the fabrication of optical elements for the next generation of imaging and x-ray lithography instruments m the soft x-ray region.

Bionta, Richard M. (Livermore, CA); Makowiecki, Daniel M. (Livermore, CA); Skulina, Kenneth M. (Livermore, CA)

1995-01-01T23:59:59.000Z

175

Fabrication process for a gradient index x-ray lens  

DOE Patents (OSTI)

A process is disclosed for fabricating high efficiency x-ray lenses that operate in the 0.5-4.0 keV region suitable for use in biological imaging, surface science, and x-ray lithography of integrated circuits. The gradient index x-ray optics fabrication process broadly involves co-sputtering multi-layers of film on a wire, followed by slicing and mounting on block, and then ion beam thinning to a thickness determined by periodic testing for efficiency. The process enables the fabrication of transmissive gradient index x-ray optics for the 0.5-4.0 keV energy range. This process allows the fabrication of optical elements for the next generation of imaging and x-ray lithography instruments in the soft x-ray region. 13 figures.

Bionta, R.M.; Makowiecki, D.M.; Skulina, K.M.

1995-01-17T23:59:59.000Z

176

Biological Imaging by Soft X-Ray Diffraction Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Imaging by Soft X-Ray Diffraction Microscopy Print Biological Imaging by Soft X-Ray Diffraction Microscopy Print Electron and x-ray microscopes are a valuable tool for both the life and materials sciences, but they are limited in their ability to image with nanometer-scale resolution in three dimensions nonperiodic objects that are several microns in size. To fill this gap, the technique of coherent x-ray diffraction imaging now under development takes advantage of the penetrating power of x rays while simultaneously removing the limitations imposed by lens-based optical systems. Researchers from Stony Brook University, in collaboration with scientists at the ALS and Cornell University, have taken a large step in this direction by using a lensless x-ray diffraction microscope to image a freeze-dried yeast cell to better than 30-nm resolution. Images were made at several angular orientations of the cell.

177

Sixth International Conference on X-ray Microscopy  

SciTech Connect

More than 180 participants from around the world crowded the Clark Kerr Campus of the University of California, Berkeley, from August 1-6, 1999 for the Sixth International Conference on X-Ray Microscopy (XRM99). Held every three years since 1983, the XRM conferences have become the primary international forum for the presentation and discussion of advances in high-spatial-resolution x-ray imaging and applications (including the use of x-ray spectroscopic and analytical techniques) in biological and medical sciences, environmental and soil sciences, and materials and surface sciences.

Robinson, Arthur L.

1999-08-23T23:59:59.000Z

178

Combined use of hard X-ray phase contrast imaging and X-ray fluorescence microscopy for sub-cellular metal quantification  

E-Print Network (OSTI)

Combined use of hard X-ray phase contrast imaging and X-ray fluorescence microscopy for subSurface Science Laboratory at the European Synchrotron Radiation Facility, Grenoble, France Abstract Hard X of the details of cells are undetectable in hard X-ray microscopy due to the weak absorption contrast between

Paris-Sud XI, Université de

179

Earth Sciences Division Research Summaries 2006-2007  

Science Conference Proceedings (OSTI)

Research in earth and atmospheric sciences has become increasingly important in light of the energy, climate change, and other environmental issues facing the United States and the world. The development of new energy resources other than fossil hydrocarbons, the safe disposal of nuclear waste and greenhouse gases, and a detailed understanding of the climatic consequences of our energy choices are all critical to meeting energy needs while ensuring environmental safety. The cleanup of underground contamination and the preservation and management of water supplies continue to provide challenges, as they will for generations into the future. To address the critical energy and environmental issues requires continuing advances in our knowledge of Earth systems and our ability to translate that knowledge into new technologies. The fundamental Earth science research common to energy and environmental issues largely involves the physics, chemistry, and biology of fluids in and on the Earth. To manage Earth fluids requires the ability to understand their properties and behavior at the most fundamental molecular level, as well as prediction, characterization, imaging, and manipulation of those fluids and their behavior in real Earth reservoirs. The broad range of disciplinary expertise, the huge range of spatial and time scales, and the need to integrate theoretical, computational, laboratory and field research, represent both the challenge and the excitement of Earth science research. The Earth Sciences Division (ESD) of the Ernest Orlando Lawrence Berkeley National Laboratory (Berkeley Lab) is committed to addressing the key scientific and technical challenges that are needed to secure our energy future in an environmentally responsibly way. Our staff of over 200 scientists, UC Berkeley faculty, support staff and guests perform world-acclaimed fundamental research in hydrogeology and reservoir engineering, geophysics and geomechanics, geochemistry, microbial ecology, climate systems, and environmental engineering. Building on this scientific foundation, we also perform applied earth science research and technology development to support DOE in a number of its program areas. We currently organize our efforts in the following Division Programs: Fundamental and Exploratory Research--fundamental research in geochemistry, geophysics, and hydrology to provide a basis for new and improved energy and environmental technologies; Climate and Carbon Sciences--carbon cycling in the terrestrial biosphere and oceans, and global and regional climate modeling, are the cornerstones of a major developing divisional research thrust related to understanding and mitigating the effects of increased greenhouse gas concentrations in the atmosphere; Energy Resources--collaborative projects with industry to develop or improve technologies for the exploration and production of oil, gas, and geothermal reservoirs, and for the development of bioenergy; Environmental Remediation and Water Resources--innovative technologies for locating, containing, and remediating metals, radionuclides, chlorinated solvents, and energy-related contaminants in soils and groundwaters; Geologic Carbon Sequestration--development and testing of methods for introducing carbon dioxide to subsurface geologic reservoirs, and predicting and monitoring its subsequent migration; and Nuclear Waste and Energy--theoretical, experimental, and simulation studies of the unsaturated zone at Yucca Mountain, Nevada. These programs draw from each of ESD's disciplinary departments: Climate Science, Ecology, Geochemistry, Geophysics, and Hydrogeology. Short descriptions of these departments are provided as introductory material. In this document, we present summaries of selected current research projects. While it is not a complete accounting, the projects described here are representative of the nature and breadth of the ESD research effort. We are proud of our scientific accomplishments and we hope that you will find this material useful and exciting. A list of publications for the period from J

DePaolo, Donald; DePaolo, Donald

2008-07-21T23:59:59.000Z

180

Miniature x-ray source  

DOE Patents (OSTI)

A miniature x-ray source capable of producing broad spectrum x-ray emission over a wide range of x-ray energies. The miniature x-ray source comprises a compact vacuum tube assembly containing a cathode, an anode, a high voltage feedthru for delivering high voltage to the anode, a getter for maintaining high vacuum, a connection for an initial vacuum pump down and crimp-off, and a high voltage connection for attaching a compact high voltage cable to the high voltage feedthru. At least a portion of the vacuum tube wall is highly x-ray transparent and made, for example, from boron nitride. The compact size and potential for remote operation allows the x-ray source, for example, to be placed adjacent to a material sample undergoing analysis or in proximity to the region to be treated for medical applications.

Trebes, James E. (Livermore, CA); Stone, Gary F. (Livermore, CA); Bell, Perry M. (Tracy, CA); Robinson, Ronald B. (Modesto, CA); Chornenky, Victor I. (Minnetonka, MN)

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Environmental Sciences Division annual progress report for period ending September 30, 1992  

SciTech Connect

This progress report summarizes the research and development activities conducted in the Environmental Sciences Division of Oak Ridge National Laboratory during fiscal year (FY) 1992, which which extended from October 1, 1991, through September 30, 1992. This report is structured to provide descriptions of current activities and accomplishments in each of the division's major organizational units. Section activities are described in the Earth and Atmospheric sciences, ecosystem studies, Environmental analysis, environmental biotechnology, and division operations.

1993-04-01T23:59:59.000Z

182

Environmental Sciences Division annual progress report for period ending September 30, 1992  

DOE Green Energy (OSTI)

This progress report summarizes the research and development activities conducted in the Environmental Sciences Division of Oak Ridge National Laboratory during fiscal year (FY) 1992, which which extended from October 1, 1991, through September 30, 1992. This report is structured to provide descriptions of current activities and accomplishments in each of the division's major organizational units. Section activities are described in the Earth and Atmospheric sciences, ecosystem studies, Environmental analysis, environmental biotechnology, and division operations.

Not Available

1993-04-01T23:59:59.000Z

183

Synchrotron X-ray Measurements  

Science Conference Proceedings (OSTI)

... fine structure (EXAFS) spectroscopy; (3) variable kinetic energy X-ray ... advanced materials is critical to the development and optimization of products ...

2012-10-04T23:59:59.000Z

184

X-ray Absorption Spectroscopy  

SciTech Connect

This review gives a brief description of the theory and application of X-ray absorption spectroscopy, both X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS), especially, pertaining to photosynthesis. The advantages and limitations of the methods are discussed. Recent advances in extended EXAFS and polarized EXAFS using oriented membranes and single crystals are explained. Developments in theory in understanding the XANES spectra are described. The application of X-ray absorption spectroscopy to the study of the Mn4Ca cluster in Photosystem II is presented.

Yano, Junko; Yachandra, Vittal K.

2009-07-09T23:59:59.000Z

185

SLAC National Accelerator Laboratory - X-ray Laser Research Ranks...  

NLE Websites -- All DOE Office Websites (Extended Search)

selected science "Breakthrough of the Year": the discovery of what appears to be the Higgs boson. Scientists aimed the Linac Coherent Light Source X-ray laser at thousands of tiny...

186

Physics, Computer Science and Mathematics Division. Annual report, 1 January-31 December 1979  

SciTech Connect

This annual report describes the research work carried out by the Physics, Computer Science and Mathematics Division during 1979. The major research effort of the Division remained High Energy Particle Physics with emphasis on preparing for experiments to be carried out at PEP. The largest effort in this field was for development and construction of the Time Projection Chamber, a powerful new particle detector. This work took a large fraction of the effort of the physics staff of the Division together with the equivalent of more than a hundred staff members in the Engineering Departments and shops. Research in the Computer Science and Mathematics Department of the Division (CSAM) has been rapidly expanding during the last few years. Cross fertilization of ideas and talents resulting from the diversity of effort in the Physics, Computer Science and Mathematics Division contributed to the software design for the Time Projection Chamber, made by the Computer Science and Applied Mathematics Department.

Lepore, J.V. (ed.)

1980-09-01T23:59:59.000Z

187

Refractive optical elements and optical system for high energy x-ray microscopy  

Science Conference Proceedings (OSTI)

In material science, X-ray radiation with photon energies above 25 keV is used because of its penetration into high density materials. Research of the inner structure of novel materials, such as electrodes in high power batteries for engines, require X-ray microscopes operating in the hard X-ray energy range. A flexible X-ray microscope for hard X-rays with photon energies higher than 25 keV will be realized at the synchrotron source ANKA in Karlsruhe, Germany. The device will use refractive X-ray lenses as condenser as well as objective lenses.

Simon, M.; Altapova, V.; Baumbach, T.; Kluge, M.; Last, A.; Marschall, F.; Mohr, J.; Nazmov, V.; Vogt, H. [Karlsruhe Institute of Technology, Institute of Microstructure Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen (Germany); Karlsruhe Institute of Technology, Laboratory for Applications of Synchrotron Radiation, Engesser Strasse 15, 76131 Karlsruhe (Germany); Karlsruhe Institute of Technology, Institute of Microstructure Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen (Germany)

2012-05-17T23:59:59.000Z

188

Beyond 3-D X-ray Imaging: Methodology Development and Applications in  

NLE Websites -- All DOE Office Websites (Extended Search)

Beyond 3-D X-ray Imaging: Methodology Development and Applications in Beyond 3-D X-ray Imaging: Methodology Development and Applications in Material Science Thursday, September 6, 2012 - 10:45am SLAC, Bldg. 137, Room 226 Yijin Liu Seminar There was a revolutionary development of X-ray imaging over the past few decades. The most substantial advancements in this field are closely related to the availability of the new generation of X-ray sources and the advanced X-ray optics. The advanced X-ray Optics along with novel methodology has made it possible to extract information that is related to different interactions between the X-rays and the specimen at very fine spatial resolution. The energy tunability of the X-rays has made it possible to combine the energy scan with imaging technique. And the brilliance of the X-ray source has made it practical for many sophisticated

189

Earth Sciences Division Research Summaries 2006-2007  

E-Print Network (OSTI)

by the Director, Office of Science, Office of Basic Energyby the Director, Office of Science, Office of Basic Energyby the Director, Office of Science, Office of Basic Energy

DePaolo, Donald

2008-01-01T23:59:59.000Z

190

Chemical & EngChemical/Engineering Materials Division | Neutron Science |  

NLE Websites -- All DOE Office Websites (Extended Search)

Chemical and Engineering Materials Division Chemical and Engineering Materials Division SHARE Chemical and Engineering Materials Division CEMD Director Mike Simonson The Chemical and Engineering Materials Division (CEMD) supports neutron-based research at SNS and HFIR in understanding the structure and dynamics of chemical systems and novel engineering materials. The user community takes advantage of division-supported capabilities of neutron scattering for measurements over wide ranges of experimental and operating conditions, including studies of chemical and physical changes in situ. User experiments with diffraction, small-angle scattering, inelastic and quasielastic scattering, and neutron imaging instruments address a range of problems in chemistry and in engineering materials research. Current areas of research supported by the division include the structure

191

Physics, Computer Science and Mathematics Division annual report, 1 January-31 December 1983  

SciTech Connect

This report summarizes the research performed in the Physics, Computer Science and Mathematics Division of the Lawrence Berkeley Laboratory during calendar year 1983. The major activity of the Division is research in high-energy physics, both experimental and theoretical, and research and development in associated technologies. A smaller, but still significant, program is in computer science and applied mathematics. During 1983 there were approximately 160 people in the Division active in or supporting high-energy physics research, including about 40 graduate students. In computer science and mathematics, the total staff, including students and faculty, was roughly 50. Because of the creation in late 1983 of a Computing Division at LBL and the transfer of the Computer Science activities to the new Division, this annual report is the last from the Physics, Computer Science and Mathematics Division. In December 1983 the Division reverted to its historic name, the Physics Division. Its future annual reports will document high energy physics activities and also those of its Mathematics Department.

Jackson, J.D.

1984-08-01T23:59:59.000Z

192

Materials and Chemical Sciences Division annual report, 1987  

DOE Green Energy (OSTI)

Research programs from Lawrence Berkeley Laboratory in materials science, chemical science, nuclear science, fossil energy, energy storage, health and environmental sciences, program development funds, and work for others is briefly described. (CBS)

Not Available

1988-07-01T23:59:59.000Z

193

Michael M. Thackeray Argonne National Laboratory Chemical Sciences and Engineering Division  

NLE Websites -- All DOE Office Websites (Extended Search)

M. Thackeray M. Thackeray Argonne National Laboratory Chemical Sciences and Engineering Division 9700 South Cass Avenue, Building 205 Argonne, IL 60439-4837 phone: 630/252-9184, fax: 630/252-4176 Email: thackeray@anl.gov Professional Experience 1994-Present. Argonne National Laboratory, Argonne Distinguished Fellow, Group Leader and Senior Scientist, Electrochemical Energy Storage Department, Chemical Sciences and Engineering Division. 1983-1994. Council for Scientific and Industrial Research (CSIR), Division of Materials Science and Technology, Pretoria, South Africa (Manager and Senior Research Officer, Battery Technology Unit). 1981-82; 1985. Oxford University (Postdoctoral Appointee, Academic Visitor). 1973-1982. CSIR, National Physical Research Laboratory, Pretoria, South Africa (Research

194

Chemical and Engineering Materials Division | ORNL Neutron Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

and Engineering Materials Division (CEMD) supports neutron-based research at SNS and HFIR in understanding the structure and dynamics of chemical systems and novel engineering...

195

Environmental Sciences Division Groundwater Program Office. Annual report, 1993  

SciTech Connect

This first edition of the Martin Marietta Energy Systems, Inc., (Energy Systems) Groundwater Program Annual Report summarizes the work carried out by the Energy Systems GWPO for fiscal year (FY) 1993. This introductory section describes the GWPO`s staffing, organization, and funding sources. The GWPO is responsible for coordination and oversight for all components of the groundwater program at the three Oak Ridge facilities [ORNL, the Oak Ridge Y-12 Plant, and the Oak Ridge K-25 Site], and the PGDP and PORTS, respectively. Several years ago, Energy systems senior management recognized that the manner in which groundwater activities were conducted at the five facilities could result in unnecessary duplication of effort, inadequate technical input to decisions related to groundwater issues, and could create a perception within the regulatory agencies of a confusing and inconsistent approach to groundwater issues at the different facilities. Extensive interactions among management from Environmental Compliance, Environmental Restoration (ER), Environmental Sciences Division, Environmental Safety and Health, and the five facilities ultimately led to development of a net technical umbrella organization for groundwater. On April 25, 1991, the GWPO was authorized to be set up within ORNL thereby establishing a central coordinating office that would develop a consistent technical and administrative direction for the groundwater programs of all facilities and result in compliance with all relevant U.S. Environmental Protection Agency (EPA) regulations such as RCRA and Comprehensive Environmental Restoration, Compensation and Liability Act (CERCLA) as well as U.S. Department of Energy (DOE) regulations and orders. For example, DOE Order 5400.1, issued on November 9, 1988, called for each DOE facility to develop an environmental monitoring program for all media (e.g., air, surface water, and groundwater).

Not Available

1993-09-30T23:59:59.000Z

196

Biology and Soft Matter Division | Neutron Science | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Biology and Soft Matter Division Biology and Soft Matter Division SHARE Biology and Soft Matter Division BSMD Director Paul Langan The Biology and Soft Matter Division (BSMD) operates an external user program for biological and soft matter research using neutron techniques at SNS and HFIR. Division personnel enable the research initiated by external users by acting as instrument responsible scientists and local contacts on a range of different beam lines. BSMD works closely with the Center for Structural Molecular Biology. Diffraction, small-angle scattering, and reflectometry are ideal methods for studying structure and organization from the atomic to the micron length scales, and neutron spectroscopic methods characterize self and collective motions from picosecond to microsecond timescales. These

197

Amy W. Apon, Ph.D. Professor and Chair, Computer Science Division  

E-Print Network (OSTI)

performance computing, impact of high performance computing to research competiveness, sustainable funding, Division of Computer Science, Clemson University 20082011 Director, Arkansas High Performance Computing Center 20042008 Director of High Performance Computing, University of Arkansas 20072011 Professor

Duchowski, Andrew T.

198

X-ray Imaging Workshop  

NLE Websites -- All DOE Office Websites (Extended Search)

Imaging and Spectro-microscopy: Imaging and Spectro-microscopy: the Present and the Future Stanford Synchrotron Radiation Laboratory October 8-9, 2002 Organizers: John Miao & Keith Hodgson A workshop on "X-ray Imaging and Spectro-microscopy: the Present and the Future" was held on October 8-9, 2002. This workshop, organized by John Miao (SSRL) and Keith Hodgson (SSRL) provided a forum to discuss the scientific applications of a variety of imaging and spectro-microscopic techniques, including photoemission electron microscopy (PEEM), angle resolved photoemission spectroscopy (ARPES), coherent diffraction imaging, x-ray microscopy, micro-tomography, holographic imaging, and x-ray micro-probe. Twelve invited speakers discussed the important scientific applications of these techniques, and also predicted the future scientific directions with the advance of instrumentation and x-ray sources. The workshop was well attended with over fifty registered attendees.

199

Miniature x-ray source  

DOE Patents (OSTI)

A miniature x-ray source utilizing a hot filament cathode. The source has a millimeter scale size and is capable of producing broad spectrum x-ray emission over a wide range of x-ray energies. The miniature source consists of a compact vacuum tube assembly containing the hot filament cathode, an anode, a high voltage feedthru for delivering high voltage to the cathode, a getter for maintaining high vacuum, a connector for initial vacuum pump down and crimp-off, and a high voltage connection for attaching a compact high voltage cable to the high voltage feedthru. At least a portion of the vacuum tube wall is fabricated from highly x-ray transparent materials, such as sapphire, diamond, or boron nitride.

Trebes, James E. (Livermore, CA); Bell, Perry M. (Tracy, CA); Robinson, Ronald B. (Modesto, CA)

2000-01-01T23:59:59.000Z

200

HIGH BRILLIANCE X-RAY SCATTERING FOR  

NLE Websites -- All DOE Office Websites (Extended Search)

BRILLIANCE X-RAY SCATTERING FOR BRILLIANCE X-RAY SCATTERING FOR LIFE SCIENCES (LIX) Group Leader: Lin Yang Proposal Team: O. Bilsel 1 , B. Hsiao 2 , H. Huang 3 , T. Irving 4 , A. Menzel 5 , L. Pollack 6 , C. Riekel 7 , J. Rubert 8 , H. Tsuruta 9 , L. Yang 10 1 University of Massachusetts, 2 Stony Brook University, 3 Rice University, 4 IIT, 5SLS, 6 Cornell University, 7 European Synchrotron Radiation Facility, 8 NEU, 9 Stanford Synchrotron Radiation Lightsource, 10 Brookhaven National Laboratory TECHNIQUES AND CAPABILITIES APPLICATIONS ADDITIONAL INFORMATION * Energy range 2-20keV using undulator source. Simultaneous SAXS/WAXS to cover 0.003-3Å -1 at 12keV with 1 micron spot size * Time-resolved solution scattering with resolution of (1) microseconds to milliseconds using continuous-flow mixing (5µm x 10µm spot size) and (2) milliseconds using stopped-

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Tokamak x ray diagnostic instrumentation  

SciTech Connect

Three classes of x-ray diagnostic instruments enable measurement of a variety of tokamak physics parameters from different features of the x-ray emission spectrum. (1) The soft x-ray (1 to 50 keV) pulse-height-analysis (PHA) diagnostic measures impurity concentrations from characteristic line intensities and the continuum enhancement, and measures the electron temperature from the continuum slope. (2) The Bragg x-ray crystal spectrometer (XCS) measures the ion temperature and neutral-beam-induced toroidal rotation velocity from the Doppler broadening and wavelength shift, respectively, of spectral lines of medium-Z impurity ions. Impurity charge state distributions, precise wavelengths, and inner-shell excitation and recombination rates can also be studied. X rays are diffracted and focused by a bent crystal onto a position-sensitive detector. The spectral resolving power E/..delta..E is greater than 10/sup 4/ and time resolution is 10 ms. (3) The x-ray imaging system (XIS) measures the spatial structure of rapid fluctuations (0.1 to 100 kHZ) providing information on MHD phenomena, impurity transport rates, toroidal rotation velocity, plasma position, and the electron temperature profile. It uses an array of silicon surface-barrier diodes which view different chords of the plasma through a common slot aperture and operate in current (as opposed to counting) mode. The effectiveness of shields to protect detectors from fusion-neutron radiation effects has been studied both theoretically and experimentally.

Hill, K.W.; Beiersdorfer, P.; Bitter, M.; Fredrickson, E.; Von Goeler, S.; Hsuan, H.; Johnson, L.C.; Liew, S.L.; McGuire, K.; Pare, V.

1987-01-01T23:59:59.000Z

202

Definition: Portable X-Ray Diffraction (XRD) | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Portable X-Ray Diffraction (XRD) Jump to: navigation, search Dictionary.png Portable X-Ray Diffraction (XRD) Portable X-Ray Diffraction (XRD) is a field-based technique that can be used for identification of crystalline materials and analysis of unit cell dimensions. Portable XRD analysis is similar to X-ray powder diffraction, which has traditionally been used in geology, environmental science, material science, and engineering to rapidly identify unknown crystalline substances. Portable XRD analysis allows for simpler sample preparation, faster analytical times than traditional methods (less than 2 minutes), and can be performed at the sampling site in the field. A pure, finely ground

203

Life Sciences Division progress report for CYs 1997-1998 [Oak Ridge National Laboratory  

SciTech Connect

This is the first formal progress report issued by the ORNL Life Sciences Division. It covers the period from February 1997 through December 1998, which has been critical in the formation of our new division. The legacy of 50 years of excellence in biological research at ORNL has been an important driver for everyone in the division to do their part so that this new research division can realize the potential it has to make seminal contributions to the life sciences for years to come. This reporting period is characterized by intense assessment and planning efforts. They included thorough scrutiny of our strengths and weaknesses, analyses of our situation with respect to comparative research organizations, and identification of major thrust areas leading to core research efforts that take advantage of our special facilities and expertise. Our goal is to develop significant research and development (R&D) programs in selected important areas to which we can make significant contributions by combining our distinctive expertise and resources in the biological sciences with those in the physical, engineering, and computational sciences. Significant facilities in mouse genomics, mass spectrometry, neutron science, bioanalytical technologies, and high performance computing are critical to the success of our programs. Research and development efforts in the division are organized in six sections. These cluster into two broad areas of R&D: systems biology and technology applications. The systems biology part of the division encompasses our core biological research programs. It includes the Mammalian Genetics and Development Section, the Biochemistry and Biophysics Section, and the Computational Biosciences Section. The technology applications part of the division encompasses the Assessment Technology Section, the Environmental Technology Section, and the Toxicology and Risk Analysis Section. These sections are the stewards of the division's core competencies. The common mission of the division is to advance science and technology to understand complex biological systems and their relationship with human health and the environment.

Mann, Reinhold C.

1999-06-01T23:59:59.000Z

204

X-ray Transition Energies Search Form  

Science Conference Proceedings (OSTI)

[skip navigation] X-ray Transition Energies Database Main Page Search for X-ray transition energies by element(s), transition ...

205

Radiation from laser accelerated electron bunches: Coherent terahertz and femtosecond X-rays  

E-Print Network (OSTI)

by an intense ultrashort laser pulse,” Science, vol. 298,generated from intense laser-plasma interactions,” Appl.monochromatic x-rays in the laser synchrotron source

2004-01-01T23:59:59.000Z

206

X-ray Fluorescence Analysis of a Dirty Discrete White Spot in a ...  

Science Conference Proceedings (OSTI)

3D Orientation Contrast Microscopy Characterization of Thermo-mechanical Fatigue ... Challenges in Data Intensive Science at Synchrotron Based 3D X-ray ...

207

Fuel Cycle and Isotopes Division  

NLE Websites -- All DOE Office Websites (Extended Search)

Divisions Fuel Cycle and Isotopes Division Jeffrey Binder, Division Director Jeffrey Binder, Division Director The Fuel Cycle and Isotopes Division (FCID) of the Nuclear Science...

208

Biological Imaging by Soft X-Ray Diffraction Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Imaging by Soft X-Ray Biological Imaging by Soft X-Ray Diffraction Microscopy Biological Imaging by Soft X-Ray Diffraction Microscopy Print Wednesday, 30 November 2005 00:00 Electron and x-ray microscopes are a valuable tool for both the life and materials sciences, but they are limited in their ability to image with nanometer-scale resolution in three dimensions nonperiodic objects that are several microns in size. To fill this gap, the technique of coherent x-ray diffraction imaging now under development takes advantage of the penetrating power of x rays while simultaneously removing the limitations imposed by lens-based optical systems. Researchers from Stony Brook University, in collaboration with scientists at the ALS and Cornell University, have taken a large step in this direction by using a lensless x-ray diffraction microscope to image a freeze-dried yeast cell to better than 30-nm resolution. Images were made at several angular orientations of the cell.

209

Femtosecond Time-Delay X-ray Holography  

NLE Websites -- All DOE Office Websites (Extended Search)

Time-Delay X-ray Holography Time-Delay X-ray Holography X-ray free-electron lasers (XFELs) will produce photon pulses with a unique and desirable combination of properties. Their short X-ray wavelengths allow penetration into materials and the ability to probe structure at and below the nanometer scale. Their ultra-short duration gives information about this structure at the fundamental time-scales of atoms and molecules. The extreme intensity of the pulses will allow this information to be acquired in a single shot, so that these studies can be carried out on non-repeatable processes or on weakly-scattering objects that will be modified by the pulse. A fourth property of XFEL pulses is their high transverse coherence, which brings the promise of decades of innovation in visible optics to the X-ray regime, such as holography, interferometry, and laser-based imaging. Making an effective use of XFEL pulses, however, will benefit from innovations that are new to both X-ray science and coherent optics. One such innovation is the new method of time-delay X-ray holography [i], recently demonstrated at the FLASH FEL at DESY in Hamburg, to measure the evolution of objects irradiated by intense pulses.

210

Earth Sciences Division Research Summaries 2006-2007  

E-Print Network (OSTI)

t ron user facilities (ALS, NSLS, and SSRL). By frequentNational Science Foundation NSLS—National Synchrotron Light

DePaolo, Donald

2008-01-01T23:59:59.000Z

211

Los Alamos Life Sciences Division's biomedical and environmental research programs. Progress report, January-December 1980  

SciTech Connect

Highlights of research progress accomplished in the Life Sciences Division during the year ending December 1980 are summarized. Reports from the following groups are included: Toxicology, Biophysics, Genetics; Environmental Pathology, Organic Chemistry, and Environmental Sciences. Individual abstracts have been prepared for 46 items for inclusion in the Energy Data Base. (RJC)

Holland, L.M.; Stafford, C.G.; Bolen, S.K. (comps.)

1981-09-01T23:59:59.000Z

212

Materials and Chemical Sciences Division annual report 1989  

DOE Green Energy (OSTI)

This report describes research conducted at Lawrence Berkeley Laboratories, programs are discussed in the following topics: materials sciences; chemical sciences; fossil energy; energy storage systems; health and environmental sciences; exploratory research and development funds; and work for others. A total of fifty eight programs are briefly presented. References, figures, and tables are included where appropriate with each program.

Not Available

1990-07-01T23:59:59.000Z

213

Oak Ridge Institute for Science and Education, Medical Sciences Division report for 1994  

Science Conference Proceedings (OSTI)

The primary mission of the Medical Sciences Division is (1) to conduct basic and applied biomedical research on human health related to energy systems, (2) to provide technical assistance and training in occupational and environmental medicine, and (3) to make related biomedical applications available to others through technology transfer. As can be gleaned from this report, the strengths and capabilities of their staff in carrying out this mission are closely aligned with the four core competencies of ORISE: (1) occupational and environmental health, (2) environmental and safety evaluation and analysis, (3) education and training, and (4) enabling research. Brief descriptions of the various scientific and technical programs and their progress, as well as the staff responsible for the accomplishments made during 1994, are presented in this report. Research programs include the following: biochemistry; cytogenetics; Center for Epidemiologic Research; Center for Human Reliability Studies; occupational medicine; Radiation Emergency Assistance Center/Training Site; and Radiation Internal Dose Information Center.

Snyder, F.; Poston, S.; Engle, J. [eds.

1995-08-01T23:59:59.000Z

214

Climate and Environmental Sciences Division (CESD) | U.S. DOE...  

Office of Science (SC) Website

System Research (ASR) Program Data Management Earth System Modeling (ESM) Program William R. Wiley Environmental Molecular Sciences Laboratory (EMSL) Integrated Assessment of...

215

Earth Sciences Division Research Summaries 2006-2007  

E-Print Network (OSTI)

of the Office of Environmental Management, Office of ScienceResearch; DOE Office of Environmental Management, Office of2) the Office of Environmental Management, Environmental

DePaolo, Donald

2008-01-01T23:59:59.000Z

216

X-ray optics metrology limited by random noise, instrumental drifts, and systematic errors  

E-Print Network (OSTI)

Source is supported by the Director, Office of Science,Office of Basic Energy Sciences, Material Science Division,

Yashchuk, Valeriy V.

2010-01-01T23:59:59.000Z

217

Compact x-ray source and panel  

SciTech Connect

A compact, self-contained x-ray source, and a compact x-ray source panel having a plurality of such x-ray sources arranged in a preferably broad-area pixelized array. Each x-ray source includes an electron source for producing an electron beam, an x-ray conversion target, and a multilayer insulator separating the electron source and the x-ray conversion target from each other. The multi-layer insulator preferably has a cylindrical configuration with a plurality of alternating insulator and conductor layers surrounding an acceleration channel leading from the electron source to the x-ray conversion target. A power source is connected to each x-ray source of the array to produce an accelerating gradient between the electron source and x-ray conversion target in any one or more of the x-ray sources independent of other x-ray sources in the array, so as to accelerate an electron beam towards the x-ray conversion target. The multilayer insulator enables relatively short separation distances between the electron source and the x-ray conversion target so that a thin panel is possible for compactness. This is due to the ability of the plurality of alternating insulator and conductor layers of the multilayer insulators to resist surface flashover when sufficiently high acceleration energies necessary for x-ray generation are supplied by the power source to the x-ray sources.

Sampayon, Stephen E. (Manteca, CA)

2008-02-12T23:59:59.000Z

218

SC Systems and Operations (SCSO) Division | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

SC Systems SC Systems and Operations (SCSO) Division Business Policy and Operations (BPO) BPO Home Leadership Organization Chart .pdf file (195KB) Business Management and Planning (BMP) Division SC Systems and Operations (SCSO) Division Contact Information Business Policy & Operations U.S. Department of Energy SC-45/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-0192 F: (301) 903-2481 More Information » SC Systems and Operations (SCSO) Division Print Text Size: A A A RSS Feeds FeedbackShare Page The SC Systems and Operations Division (SCSO) provides support for the SC HQ users in the areas of operations and maintenance for SC's network infrastructure, operational applications, cyber security, Science web sites and portals, COOP/ disaster recovery, IT property and asset management, and

219

Chemical and Analytical Sciences Division progress report for the period January 1, 1993--December 31, 1994  

SciTech Connect

This report provides brief summaries of progress in the Chemical and Analytical Sciences Division (CASD) during 1993 and 1994. The first four chapters, which cover the research mission, are organized to mirror the major organizational units of the division and indicate the scope of the research portfolio. These divisions are the Analytical Spectroscopy Section, Nuclear and Radiochemistry Section, Organic Chemistry Section, and Physical and Materials Chemistry Section. The fifth and sixth chapters summarize the support activities within CASD that are critical for research progress. Finally, the appendices indicate the productivity and recognition of the staff in terms of various forms of external publications, professional activities, and awards.

Poutsma, M.L.

1995-06-01T23:59:59.000Z

220

Environmental Sciences Division annual progress report for period ending September 30, 1991  

SciTech Connect

This progress report summarizes the research and development activities conducted in the Environmental Sciences Division of Oak Ridge National Laboratory during the period October 1, 1990, through September 30, 1991. The report is structured to provide descriptions of current activities and accomplishments in each of the division`s major organizational units. Following the sections describing the organizational units is a section devoted to lists of information necessary to convey the scope of the work in the division. The Environmental Sciences Division (ESD) at Oak Ridge National Laboratory (ORNL) conducts environmental research and analyses associated with both energy technology development and the interactions between people and the environment. The division engages in basic and applied research for a diverse list of sponsors. While the US Department of Energy (DOE) is the primary sponsor ESD staff also perform research for other federal agencies, state agencies, and private industry. The division works collaboratively with federal agencies, universities, and private organizations in achieving its research objectives and hosts a large number of visiting investigators from these organizations. Given the diverse interdisciplinary specialization of its staff, ESD provides technical expertise on complex environmental problems and renders technical leadership for major environmental issues of national and local concern. This progress report highlights many of ESD`s accomplishment in these and other areas in FY 1991.

1992-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Earth Sciences Division Research Summaries 2006-2007  

E-Print Network (OSTI)

of Science, the Office of Fossil Energy, the Office ofSecretary for Fossil Energy, Office of Coal and PowerAssistant Secretary for Fossil Energy, Office of Natural Gas

DePaolo, Donald

2008-01-01T23:59:59.000Z

222

Earth Sciences Division Research Summaries 2006-2007  

E-Print Network (OSTI)

Science, the Office of Fossil Energy, the Office of EnergyAssistant Secretary for Fossil Energy, Office of Coal andAssistant Secretary for Fossil Energy, Office of Natural Gas

DePaolo, Donald

2008-01-01T23:59:59.000Z

223

NUCLEAR SCIENCE DIVISION ANNUAL REPORT 1979-1980  

E-Print Network (OSTI)

1979). {Laboratory for Nuclear Studies, Osaka University,D. Loveland, and G. T. Seaborg, Nuclear Science Div. AnnualBohr and B. R. Hottel son. Nuclear Structure Vol. 1 (W. A.

Cerny, J.

2010-01-01T23:59:59.000Z

224

Environmental Sciences Division. Annual progress report for period ending September 30, 1980. [Lead abstract  

SciTech Connect

Research conducted in the Environmental Sciences Division for the Fiscal Year 1980 included studies carried out in the following Division programs and sections: (1) Advanced Fossil Energy Program, (2) Nuclear Program, (3) Environmental Impact Program, (4) Ecosystem Studies Program, (5) Low-Level Waste Research and Development Program, (6) National Low-Level Waste Program, (7) Aquatic Ecology Section, (8) Environmental Resources Section, (9) Earth Sciences Section, and (10) Terrestrial Ecology Section. In addition, Educational Activities and the dedication of the Oak Ridge National Environmental Research Park are reported. Separate abstracts were prepared for the 10 sections of this report.

Auerbach, S.I.; Reichle, D.E.

1981-03-01T23:59:59.000Z

225

Microgap x-ray detector  

DOE Patents (OSTI)

An x-ray detector which provides for the conversion of x-ray photons into photoelectrons and subsequent amplification of these photoelectrons through the generation of electron avalanches in a thin gas-filled region subject to a high electric potential. The detector comprises a cathode (photocathode) and an anode separated by the thin, gas-filled region. The cathode may comprise a substrate, such a beryllium, coated with a layer of high atomic number material, such as gold, while the anode can be a single conducting plane of material, such as gold, or a plane of resistive material, such as chromium/silicon monoxide, or multiple areas of conductive or resistive material, mounted on a substrate composed of glass, plastic or ceramic. The charge collected from each electron avalanche by the anode is passed through processing electronics to a point of use, such as an oscilloscope.

Wuest, Craig R. (Danville, CA); Bionta, Richard M. (Livermore, CA); Ables, Elden (Livermore, CA)

1994-01-01T23:59:59.000Z

226

Environmental Sciences Division annual progress report for period ending September 30, 1991  

SciTech Connect

This progress report summarizes the research and development activities conducted in the Environmental Sciences Division of Oak Ridge National Laboratory during the period October 1, 1990, through September 30, 1991. The report is structured to provide descriptions of current activities and accomplishments in each of the division's major organizational units. Following the sections describing the organizational units is a section devoted to lists of information necessary to convey the scope of the work in the division. The Environmental Sciences Division (ESD) at Oak Ridge National Laboratory (ORNL) conducts environmental research and analyses associated with both energy technology development and the interactions between people and the environment. The division engages in basic and applied research for a diverse list of sponsors. While the US Department of Energy (DOE) is the primary sponsor ESD staff also perform research for other federal agencies, state agencies, and private industry. The division works collaboratively with federal agencies, universities, and private organizations in achieving its research objectives and hosts a large number of visiting investigators from these organizations. Given the diverse interdisciplinary specialization of its staff, ESD provides technical expertise on complex environmental problems and renders technical leadership for major environmental issues of national and local concern. This progress report highlights many of ESD's accomplishment in these and other areas in FY 1991.

1992-04-01T23:59:59.000Z

227

Environmental Sciences Division annual progress report for period ending September 30, 1993  

Science Conference Proceedings (OSTI)

This progress report summarizes the research and development activities conducted in the Environmental Sciences Division (ESD) of Oak Ridge National Laboratory during fiscal year (FY) 1993, which extended from October 1, 1992, through September 30, 1993. The report is structured to provide descriptions of current activities and accomplishments in each of the division`s major organizational units. Following the sections describing the organizational units are sections highlighting ESD Scientific, Technical, and Administrative Achievement awards and listing information necessary to convey the scope of the work in the division. An organizational chart of staff and long-term guests who were in ESD and the end of FY 1993 is located in the final section of the report.

Not Available

1994-05-01T23:59:59.000Z

228

Chest x-Rays | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Chest x-Rays Chest x-Rays Chest x-Rays Chest X-ray B-Reading The B-reading is a special reading of a standard chest x-ray film performed by a physician certified by the National Institute for Occupational Safety and Health (NIOSH). The reading looks for changes on the chest x-ray that may indicate exposure and disease caused by agents such as asbestos or silica. The B-reading is considered a special reading because doctors who are certified by NIOSH to perform B-readings use a specific protocol to read and record the findings as developed by the International Labour Organization (ILO). The ILO's protocol provides rules for systematically examining the x-ray in a step-by-step method and recording certain abnormalities or changes on the chest x-ray that can be attributable to

229

Spectral analysis of X-ray binaries  

E-Print Network (OSTI)

In this thesis, I present work from three separate research projects associated with observations of X-ray binaries. Two of those revolve around spectral characteristics of neutron star low-mass X-ray binaries (NS-LMXBs), ...

Fridriksson, Joel Karl

2011-01-01T23:59:59.000Z

230

Division of Medical Sciences Ph.D. Programs at Harvard Medical School  

E-Print Network (OSTI)

Division of Medical Sciences Ph.D. Programs at Harvard Medical School Quarter Courses Spring Visualization with Maya Catalog Number: 61072 Enrollment: Limited to 18. Gael McGill (Medical School) and David Lopes Cardozo (Medical School) *BCMP 307qc. Approaches to Drug Action, Discovery, and Design Catalog

Mekalanos, John

231

Pre-medical Studies Division of Biomedical and Life Sciences Degree Schemes  

E-Print Network (OSTI)

Pre-medical Studies A900 Division of Biomedical and Life Sciences Degree Schemes Our Pre-medical Studies course provides an opportunity for entry into medical education for individuals with non to enter year 1 of the Liverpool University MBChB medical degree studying at Lancaster or Liverpool

Meju, Max

232

SANTA CRUZ: OFFICE OF THE DEAN DIVISION OF PHYSICAL & BIOLOGICAL SCIENCES  

E-Print Network (OSTI)

over the next several years as we develop a long-term strategy to maintain research excellence the Physical and Biological Sciences Division as I begin my first term as dean, following a year as interim indirect costs remain consistent with last year's level at just over $11M. We will receive final figures

California at Santa Cruz, University of

233

X-Ray Diffraction on NIF  

SciTech Connect

The National Ignition Facility (NIF) is currently a 192 beam, 1.6 MJ laser. NIF Ramp-Compression Experiments have already made the relevant exo-planet pressure range from 1 to 50 Mbar accessible. We Proposed to Study Carbon Phases by X-Ray Diffraction on NIF. Just a few years ago, ultra-high pressure phase diagrams for materials were very 'simple'. New experiments and theories point out surprising and decidedly complex behavior at the highest pressures considered. High pressures phases of aluminum are also predicted to be complex. Recent metadynamics survey of carbon proposed a dynamic pathway among multiple phases. We need to develop diagnostics and techniques to explore this new regime of highly compressed matter science. X-Ray Diffraction - Understand the phase diagram/EOS/strength/texture of materials to 10's of Mbar. Strategy and physics goals: (1) Powder diffraction; (2) Begin with diamond; (3) Continue with metals etc.; (4) Explore phase diagrams; (5) Develop liquid diffraction; and (6) Reduce background/improve resolution.

Eggert, J H; Wark, J

2012-02-15T23:59:59.000Z

234

Cryotomography x-ray microscopy state  

Science Conference Proceedings (OSTI)

An x-ray microscope stage enables alignment of a sample about a rotation axis to enable three dimensional tomographic imaging of the sample using an x-ray microscope. A heat exchanger assembly provides cooled gas to a sample during x-ray microscopic imaging.

Le Gros, Mark (Berkeley, CA); Larabell, Carolyn A. (Berkeley, CA)

2010-10-26T23:59:59.000Z

235

Compact X-ray Light Source Workshop Report  

SciTech Connect

This report, produced jointly by EMSL and FCSD, is the result of a workshop held in September 2011 that examined the utility of a compact x-ray light source (CXLS) in addressing many scientific challenges critical to advancing energy science and technology.

Thevuthasan, Suntharampillai; Evans, James E.; Terminello, Louis J.; Koppenaal, David W.; Manke, Kristin L.; Plata, Charity

2012-12-01T23:59:59.000Z

236

The First Angstrom X-Ray Free-Electron Laser  

SciTech Connect

The Linac Coherent Light Source produced its first x-ray laser beam on 10 April 2009. Today it is routinely producing x-ray pulses with energy >2 mJ across the operating range from 820-8,200 eV. The facility has begun operating for atomic/molecular/optical science experiments. Performance of the facility in its first user run (1 October - 21 December) and current machine development activities will be presented. Early results from the preparations for the start of the second user run is also reported.

Galayda, John; /SLAC

2012-08-24T23:59:59.000Z

237

X-ray transmissive debris shield  

DOE Patents (OSTI)

An X-ray debris shield for use in X-ray lithography that is comprised of an X-ray window having a layer of low density foam exhibits increased longevity without a substantial increase in exposure time. The low density foam layer serves to absorb the debris emitted from the X-ray source and attenuate the shock to the window so as to reduce the chance of breakage. Because the foam is low density, the X-rays are hardly attenuated by the foam and thus the exposure time is not substantially increased.

Spielman, R.B.

1996-05-21T23:59:59.000Z

238

X-ray transmissive debris shield  

DOE Patents (OSTI)

An X-ray debris shield for use in X-ray lithography that is comprised of an X-ray window having a layer of low density foam exhibits increased longevity without a substantial increase in exposure time. The low density foam layer serves to absorb the debris emitted from the X-ray source and attenuate the shock to the window so as to reduce the chance of breakage. Because the foam is low density, the X-rays are hardly attenuated by the foam and thus the exposure time is not substantially increased.

Spielman, Rick B. (Albuquerque, NM)

1996-01-01T23:59:59.000Z

239

DIEGO FAZI Mailing address: Solar Energy Conversion Group Chemical Sciences & Engineering Division  

NLE Websites -- All DOE Office Websites (Extended Search)

DIEGO FAZI DIEGO FAZI Mailing address: Solar Energy Conversion Group Chemical Sciences & Engineering Division Bldg 200, Room E105 Argonne National Laboratory 9700 South Cass Ave. Argonne IL 60439-4831 E-mail addresses: dfazi@anl.gov Office Number: 630-252-5796 Fax: 630-252-9289 Personal Pages: http://faculty.wcas.northwestern.edu/diego-fazi/ http://www.fazid.org Research Interests Diego Fazi comes from a theoretical Physics background and he performed research in gravitational-wave astronomy within the project LIGO from 2005 to 2012. In October 2012 Dr. Fazi joined the CSE division at Argonne as a postdoctoral appointee in the Solar Conversion

240

The soft x-ray instrument for materials studies at the linac coherent light source x-ray free-electron laser  

Science Conference Proceedings (OSTI)

The soft x-ray materials science instrument is the second operational beamline at the linac coherent light source x-ray free electron laser. The instrument operates with a photon energy range of 480-2000 eV and features a grating monochromator as well as bendable refocusing mirrors. A broad range of experimental stations may be installed to study diverse scientific topics such as: ultrafast chemistry, surface science, highly correlated electron systems, matter under extreme conditions, and laboratory astrophysics. Preliminary commissioning results are presented including the first soft x-ray single-shot energy spectrum from a free electron laser.

Schlotter, W. F.; Turner, J. J.; Rowen, M.; Holmes, M.; Messerschmidt, M.; Moeller, S.; Krzywinski, J.; Lee, S.; Coffee, R.; Hays, G. [LCLS, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025 (United States); Heimann, P. [LCLS, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025 (United States); Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Krupin, O. [LCLS, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, California 94025 (United States); European XFEL GmbH, Albert-Einstein-Ring 19, 22761 Hamburg (Germany); Soufli, R.; Fernandez-Perea, M.; Hau-Riege, S. [Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550 (United States); Kelez, N. [Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Beye, M.; Gerken, N.; Sorgenfrei, F.; Wurth, W. [Institute for Experimental Physics and CFEL, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg (Germany); and others

2012-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

X-ray movies reveal insect flight, muscle motion  

NLE Websites -- All DOE Office Websites (Extended Search)

BioCAT BioCAT X-ray movies reveal insect flight, muscle motion Photo credit: Michael Dickinson Watching flies fly may not seem like high-tech science, but for researchers using the Western Hemisphere's most brilliant X-rays, from the Advanced Photon Source located at the U.S. Department of Energy's Argonne National Laboratory, it not only helps explain how insects fly but also may someday aid in understanding human heart function. The researchers, from the Illinois Institute of Technology (IIT), Caltech and the University of Vermont, merged two distinct technologies, intense X-ray beams and electronic flight simulators, to study how insect muscles can generate such extraordinary levels of power. The results are published in the the January 20,. 2005, issue of the journal Nature.

242

Neutron and X-Ray Scattering - Argonne National Laboratories, Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

Home Home Neutron and X-Ray Scattering Neutron and X-ray Scattering Science Recent advances in neutron and x-ray scattering instrumentation at major DOE facilities such as the Spallation Neutron Source and Advanced Photon Source provide unprecedented insights into complex phenomena in bulk and interfacial materials. The vision of our group is to harness the complementarity of neutrons and x-rays to study how materials respond on a range of length and time scales to phase competition, so that we can learn to control emergent behavior and generate functional properties in energy-related materials. We use neutrons and x-rays to investigate the structure and dynamics of bulk and interfacial materials with properties that are useful for energy applications, such as superconductivity, magnetism and thermoelectricity. Phase competition can generate or enhance such properties, but it is extremely challenging to characterize fluctuations in the competing order, whether in bulk disordered materials, or artificial heterostructures. Our goal is to utilize efficient techniques that we have been developing for measuring nanoscale phase fluctuations, both static and dynamic, to enable the rational design of new materials for energy within MSD.

243

Materials Sciences and Engineering (MSE) Division Homepage | U.S. DOE  

Office of Science (SC) Website

MSE Home MSE Home Materials Sciences and Engineering (MSE) Division MSE Home About Research Areas Scientific Highlights Reports and Activities Principal Investigators' Meetings BES Home Print Text Size: A A A RSS Feeds FeedbackShare Page Research Needs Workshop Reports Workshop Reports The Materials Sciences and Engineering (MSE) Division supports fundamental experimental and theoretical research to provide the knowledge base for the discovery and design of new materials with novel structures, functions, and properties. This knowledge serves as a basis for the development of new materials for the generation, storage, and use of energy and for mitigation of the environmental impacts of energy use. (details) The MSE research portfolio consists of the research focus areas in the

244

X-ray data booklet. Revision  

SciTech Connect

A compilation of data is presented. Included are properties of the elements, electron binding energies, characteristic x-ray energies, fluorescence yields for K and L shells, Auger energies, energy levels for hydrogen-, helium-, and neonlike ions, scattering factors and mass absorption coefficients, and transmission bands of selected filters. Also included are selected reprints on scattering processes, x-ray sources, optics, x-ray detectors, and synchrotron radiation facilities. (WRF)

Vaughan, D. (ed.)

1986-04-01T23:59:59.000Z

245

X-ray transmissive debris shield  

DOE Patents (OSTI)

A composite window structure is described for transmitting x-ray radiation and for shielding radiation generated debris. In particular, separate layers of different x-ray transmissive materials are laminated together to form a high strength, x-ray transmissive debris shield which is particularly suited for use in high energy fluences. In one embodiment, the composite window comprises alternating layers of beryllium and a thermoset polymer.

Spielman, Rick B. (Albuquerque, NM)

1994-01-01T23:59:59.000Z

246

NIST X-Ray Transition Energies  

Science Conference Proceedings (OSTI)

... with the International System of measurement ... titled "X-ray transition energies: new approach ... and by NIST's Systems Integration for Manufacturing ...

2011-12-09T23:59:59.000Z

247

X-ray Line Profile Analysis  

Science Conference Proceedings (OSTI)

... Magnetic Composite Materials · X-Ray Studies of Structural Effects Induced by Pulsed (30 Tesla), High Magnetic Fields at the Advanced Photon Source ...

248

NIST: X-Ray Mass Attenuation Coefficients  

Science Conference Proceedings (OSTI)

... NIST reserves the right to charge for these data in the ... ?/? and the mass energy-absorption coefficient ... The tables cover energies of the photon (x-ray ...

2011-12-09T23:59:59.000Z

249

Lensless X-Ray Imaging in Reflection  

NLE Websites -- All DOE Office Websites (Extended Search)

relevant to atomic and molecular phenomena) with the advantages of visible-light lasers (highly coherent beams). All of these characteristics are important for coherent x-ray...

250

Subsurface Science (The Molecular Environmental Science Group) |  

NLE Websites -- All DOE Office Websites (Extended Search)

Subsurface Science Subsurface Science BIO Home Page About BIO News Releases Research Publications People Contact Us Organization Chart Site Index Inside BIO BIO Safety About Argonne arrow Subsurface Science The Molecular Environmental Science Group (MESG) The MESG is part of the Biosciences Division at Argonne National Laboratory. One of the main foci during the creation and growth of the MESG has been the development of an internationally recognized integrated multidisciplinary scientific team focused on the investigation of fundamental biogeochemical questions. Presently, expertise that is represented by members of the MES Group includes x-ray Physics, Environmental Chemistry, Environmental Microbiology, (Bio)geochemistry, and radiolimnology. Additional expertise in electron microscopy, x-ray microscopy, Microbial Ecology, and Bioinformatics often is provided by collaborations with scientists outside of our group.

251

SSRL School 2008 on Hard X-ray Scattering Techniques in MES  

NLE Websites -- All DOE Office Websites (Extended Search)

May 20-22, 2008 SSRL School on Synchrotron X-ray Absorption Spectroscopy Techniques in Environmental and Materials Sciences: Theory and Application Group photo from the 2008 SSRL...

252

X?ray Fluorescence (XRF) Assay Using Laser Compton Scattered (LCS) X?rays  

Science Conference Proceedings (OSTI)

Laser Compton Scattered (LCS) X?rays are produced as a result of the interaction between accelerated electrons and a laser beam. The yield of LCS X?rays is dependent on the laser power

Syed F. Naeem; Khalid Chouffani; Douglas P. Wells

2009-01-01T23:59:59.000Z

253

X-ray spectroscopy of neutron star low-mass X-ray binaries  

E-Print Network (OSTI)

In this thesis, I present work spanning a variety of topics relating to neutron star lowmass X-ray binaries (LMXBs) and utilize spectral information from X-ray observations to further our understanding of these sources. ...

Krauss, Miriam Ilana

2007-01-01T23:59:59.000Z

254

X-Ray Multilayer Database from the LBL Center for X-Ray Optics (CXRO)  

DOE Data Explorer (OSTI)

An important activity of the Center for X-ray Optics (CXRO) is research on x-ray mirrors and their use in optical devices to focus and deflect x-ray beams. The two kinds of mirrors most widely used are glancing incidence reflectors and multilayer coatings. The X-Ray Multilayer Database is based on the results of surveys taken at the biennial Physics of X-Ray Multilayer Structures conferences. It contains measured x-ray reflectances reported for various multilayers. The database is provided as a service to the x-ray and multilayer research communities and is intended to reflect the state-of-the-art in multilayer x-ray mirrors. (Specialized Interface)

255

X-ray Holograms Expose Secret Magnetism | Advanced Photon Source  

NLE Websites -- All DOE Office Websites (Extended Search)

How Dissolved Metal Ions Interact in Solution How Dissolved Metal Ions Interact in Solution One Giant Leap for Radiation Biology? What's in the Cage Matters in Iron Antimonide Thermoelectric Materials Novel Experiments on Cement Yield Concrete Results Watching a Glycine Riboswitch "Switch" Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed X-ray Holograms Expose Secret Magnetism MAY 11, 2007 Bookmark and Share By observing changes in coherent x-ray speckle pattern, such as the one shown above, researchers are able for the first time to investigate nanoscale dynamics of antiferromagnetic domain walls, and observe a cross over from classical to quantum behavior. (Credit: O. Shpyrko)

256

LCLS - The X-ray Laser Has Turned On  

SciTech Connect

On April 10, 2009 the Linac Coherent Light Source (LCLS), the world's first hard x-ray free electron laser, was brought to lasing. Producing an x-ray beam with over a billion times higher peak brightness that then most powerful existing syncrotron sources, it marked the beginning of a new era of science. The LCLS pulses arrive at a rate of 60 - 120 Hz in an energy range from 480 eV to 10 keV, with pulse lengths as short as a few fs to about 300 fs. Since October 2009, users have been performing experiments at the LCLS, and currently three of the six planned instruments are available. Although we stand only at the beginning of LCLS science, there is no doubt about the strong sense of early excitement.

Bergmann, Uwe [Linac Coherent Light Source

2010-11-03T23:59:59.000Z

257

Energy and Environment Division  

Science Conference Proceedings (OSTI)

Energy and Environment Division. ... Selected Publications. Measurement Science Roadmap for Net-Zero Energy Buildings. ...

2013-03-13T23:59:59.000Z

258

Materials Small-angle X-ray Scattering (SAXS) | Stanford Synchrotron  

NLE Websites -- All DOE Office Websites (Extended Search)

Materials Small-angle X-ray Scattering (SAXS) Materials Small-angle X-ray Scattering (SAXS) Small Angle X-ray Scattering for Materials Science Small-angle X-ray scattering (SAXS) is a well-established characterization method for microstructure investigations in various materials. It probes electron density differences to give information about structural inhomogeneities from the near atomic scale (1 nm) to the micron scale (1 000 nm). The method involves measuring the scattered X-ray intensity as a function of (typically small) scattering angles and is generally performed in transmission. SAXS is used to characterize the size scale of inhomogeneities (e.g. pores, inclusions, second phase regions) in polymer blends, micro-emulsions, geological materials, bones, cements and ceramics. Instrumentation

259

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution  

NLE Websites -- All DOE Office Websites (Extended Search)

New Zone Plate for Soft X-Ray New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print Wednesday, 31 August 2005 00:00 Analytical tools that combine spatial resolution with elemental and chemical identification at the nanometer scale along with large penetration depth are indispensable for the life and physical sciences. The XM-1 soft x-ray microscope at the ALS produces images that not only reveal structures but can identify their chemical elements and measure magnetic and other properties as well. Now a new method for creating optical devices with nanoscale accuracy has allowed researchers in Berkeley Lab's Center for X-Ray Optics (CXRO), which built and operates the XM-1, to achieve an extraordinary resolution of better than 15 nm, with the promise of even higher resolution in the near future.

260

Organic Particles Kevin Wilson Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA  

NLE Websites -- All DOE Office Websites (Extended Search)

for Studying the Chemical Transformations of for Studying the Chemical Transformations of Organic Particles Kevin Wilson Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Molecular weight growth and decomposition chemistries play important roles in the transformation of particles from soot formation to atmospheric aerosol oxidation. Understanding these complex reaction pathways requires novel methods of analyzing particle phase hydrocarbons. We are developing a suite of synchrotron-based tools to provide better insights into the molecular composition, isomer distribution, and elemental composition of complex hydrocarbon mixtures, aimed at developing simple yet realistic descriptions of molecular weight growth and decomposition that occur during a heterogeneous reaction.

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Lensless X-Ray Imaging in Reflection  

NLE Websites -- All DOE Office Websites (Extended Search)

Lensless X-Ray Imaging in Lensless X-Ray Imaging in Reflection Lensless X-Ray Imaging in Reflection Print Wednesday, 26 October 2011 00:00 The advent of x-ray free-electron laser (XFEL) light sources has led to an outburst of research activities in the field of lensless imaging. XFELs combine the advantages of sychrotron light sources (high brightness and x-ray wavelengths relevant to atomic and molecular phenomena) with the advantages of visible-light lasers (highly coherent beams). All of these characteristics are important for coherent x-ray diffraction imaging-lensless imaging techniques that are proving to be integral to single-shot, high-resolution imaging of both complex materials and biological samples. Existing techniques are typically designed for transmission geometry, however, and use isolated objects, requiring special sample fabrication and restricting the type of samples under investigation. Recently, researchers from the ALS and the University of Oregon have shown at ALS Beamline 12.0.2 that it is possible to form x-ray holograms in reflection geometry by using the light scattered from a sample, opening the door to lensless imaging of a wealth of new material samples.

262

Los Alamos Life Sciences Division's biomedical and environmental research programs. Progress report, January-December 1980  

SciTech Connect

Highlights of research progress accomplished in the Life Sciences Division during the year ending December 1980 are summarized. Reports from the following groups are included: Toxicology, Biophysics, Genetics; Environmental Pathology, Organic Chemistry, and Environmental Sciences. Individual abstracts have been prepared for 46 items for inclusion in the Energy Data Base. (RJC)

Holland, L.M.; Stafford, C.G.; Bolen, S.K. (comps.)

1981-09-01T23:59:59.000Z

263

Science/Engineering Education Division assessment activities: An overview. Annual report, FY 1993  

SciTech Connect

Evaluation and assessment of employment trends and education programs are important functions of the Science/Engineering Education Division (SEED). Objectives of SEED`s evaluation and assessment activities are to provide quantitative measures of the impact of programs on participants; assess programmatic achievements; provide valuable information for continued program operation; ensure that the programs meet their objectives; develop and maintain data bases on scientific and engineering employment and education; provide information about trends in employment and education for energy-related scientists and engineers; and provide analyses of energy-related science and engineering employment requirements, future labor market trends, adequacy of supply of new graduates, and implications for education programs. Whenever possible, data are collected that are consistent with information obtained by other national surveys to facilitate comparisons to national norms.

Not Available

1994-02-01T23:59:59.000Z

264

Graduate student theses supported by DOE`s Environmental Sciences Division  

SciTech Connect

This report provides complete bibliographic citations, abstracts, and keywords for 212 doctoral and master`s theses supported fully or partly by the U.S. Department of Energy`s Environmental Sciences Division (and its predecessors) in the following areas: Atmospheric Sciences; Marine Transport; Terrestrial Transport; Ecosystems Function and Response; Carbon, Climate, and Vegetation; Information; Computer Hardware, Advanced Mathematics, and Model Physics (CHAMMP); Atmospheric Radiation Measurement (ARM); Oceans; National Institute for Global Environmental Change (NIGEC); Unmanned Aerial Vehicles (UAV); Integrated Assessment; Graduate Fellowships for Global Change; and Quantitative Links. Information on the major professor, department, principal investigator, and program area is given for each abstract. Indexes are provided for major professor, university, principal investigator, program area, and keywords. This bibliography is also available in various machine-readable formats (ASCII text file, WordPerfect{reg_sign} files, and PAPYRUS{trademark} files).

Cushman, R.M. [Oak Ridge National Lab., TN (United States); Parra, B.M. [Dept. of Energy, Germantown, MD (United States). Environmental Sciences Division] [comps.

1995-07-01T23:59:59.000Z

265

Nuclear Science Division annual report, October 1, 1984-September 30, 1985  

SciTech Connect

This report summarizes the activities of the Nuclear Science Division during the period October 1, 1984 to September 30, 1985. As in previous years, experimental research has for the most part been carried out using three local accelerators, the Bevalac, the SuperHILAC and the 88-Inch Cyclotron. However, during this time, preparations began for a new generation of relativistic heavy-ion experiments at CERN. The Nuclear Science Division is involved in three major experiments at CERN and several smaller ones. The report is divided into 5 sections. Part I describes the research programs and operations, and Part II contains condensations of experimental papers arranged roughly according to program and in order of increasing energy, without any further subdivisions. Part III contains condensations of theoretical papers, again ordered according to program but in order of decreasing energy. Improvements and innovations in instrumentation and in experimental or analytical techniques are presented in Part IV. Part V consists of appendices, the first listing publications by author for this period, in which the LBL report number only is given for papers that have not yet appeared in journals; the second contains abstracts of PhD theses awarded during this period; and the third gives the titles and speakers of the NSD Monday seminars, the Bevatron Research Meetings and the theory seminars that were given during the report period. The last appendix is an author index for this report.

Mahoney, J. (ed.)

1986-09-01T23:59:59.000Z

266

High-Resolution X-ray Spectroscopy  

Science Conference Proceedings (OSTI)

... In support of these efforts, we also maintain laboratory x-ray sources from 1 keV to 300 keV, energy and intensity calibration facilities, and a vacuum ...

2013-02-26T23:59:59.000Z

267

X-ray image intensifier phosphor  

DOE Patents (OSTI)

Y/sub 1-x/Gd/sub x/.PO$sub 4$:Tb$sup 3+$ is an effective phosphor for use in X-ray intensifier screens and in nuclear radiation detection systems.

D' Silva, A.P.; Fassel, V.A.

1975-12-01T23:59:59.000Z

268

Kaonic Atom X?ray Spectra  

Science Conference Proceedings (OSTI)

In kaonic atoms energy displacement and broadening of states result from the strong interaction. The most simple kaonic atoms like kaonic hydrogen and deuterium open the possibility to measure this strong interaction induced shift and width by x?ray spectroscopy. In the SIDDHARTA experiment al LNF (Frascati) the DA?NE electron?positron collider delivers nearly mono?energetic negatively charged kaons from ? meson decay. This unique kaon source is used to form kaonic atoms. New high performance x?ray detectors (silicon drift detectors) arranged in an array allow x?ray spectroscopy with high energy resolution combined with timing capability. High precision x?ray measurements like SIDDHARTA at LNF will open the way to study the low energy regime of the strong force in the antikaon?nucleon interaction. The experiment and its current status is presented in this talk.

J. Marton; on behalf of the SIDDHARTA Collaboration

2009-01-01T23:59:59.000Z

269

World's First Hard X-ray Laser  

NLE Websites -- All DOE Office Websites (Extended Search)

LCLS is the world's most powerful X-ray laser. Its highly focused beam, which arrives in staccato bursts a few quadrillionths of a second long, allows researchers to probe complex,...

270

X-ray grid-detector apparatus  

DOE Patents (OSTI)

A hybrid grid-detector apparatus for x-ray systems wherein a microchannel plate structure has an air-interspaced grid portion and a phosphor/optical fluid-filled grid portion. The grids are defined by multiple adjacent channels separated by lead-glass septa. X-rays entering the air-interspaced grid portion at an angle of impingement upon the septa are attenuated, while non-impinging x-rays pass through to the phosphor/fluid filled portion. X-ray energy is converted to luminescent energy in the phosphor/fluid filled portion and the resultant beams of light are directed out of the phosphor/optical fluid filled portion to an imaging device.

Boone, John M. (Folsom, CA); Lane, Stephen M. (Oakland, CA)

1998-01-27T23:59:59.000Z

271

X-Ray Nanoimaging: Instruments and Methods  

NLE Websites -- All DOE Office Websites (Extended Search)

X-Ray Nanoimaging: Instruments and Methods To be held as part of SPIE. http:spie.orgOP318 August 28-29, 2013; San Diego, California, USA...

272

An X-ray Polarimeter for Constellation-X  

E-Print Network (OSTI)

Polarimetry remains a largely unexploited technique in observational X-ray astronomy which could provide insight in the study of the strong gravity and magnetic fields at the core of the Constellation-X observational program. Adding a polarization capability to the Constellation-X instrumentation would be immensely powerful. It would make Constellation the first space observatory to simultaneously measure all astrophysically relevant parameters of source X-ray photons; their position (imaging), energy (spectroscopy), arrival time (timing), and polarization. Astrophysical polarimetry requires sensitive well-calibrated instruments. Many exciting objects are extra-galactic (i.e. faint) and may have small polarization. Recent advances in efficiency and bandpass make it attractive to consider a polarimetry Science Enhancement Package for the Constellation-X mission.

K. Jahoda; K. Black; P. Deines-Jones; J. E. Hill; T. Kallman; T. Strohmayer; J. H. Swank

2007-01-04T23:59:59.000Z

273

X-Ray Scattering Group, Condensed Matter Physics & Materials...  

NLE Websites -- All DOE Office Websites (Extended Search)

- Brookhaven National Laboratory, Upton, NY Beamline X1A2 - Soft x-ray diffraction and nano-imaging Beamline X17 - X-ray powder diffraction Beamline X22C - Resonant x-ray...

274

X-Ray Emission from Compact Sources  

SciTech Connect

This paper presents a review of the physical parameters of neutron stars and black holes that have been derived from X-ray observations. I then explain how these physical parameters can be used to learn about the extreme conditions occurring in regions of strong gravity, and present some recent evidence for relativistic effects seen in these systems. A glossary of commonly used terms and a short tutorial on the names of X-ray sources are also included.

Cominsky, L

2004-03-23T23:59:59.000Z

275

Argonne CNM: X-Ray Microscopy Capabilities  

NLE Websites -- All DOE Office Websites (Extended Search)

X-Ray Microscopy Facilities X-Ray Microscopy Facilities The Hard X-Ray Nanoprobe (HXN) facility provides scanning fluorescence, scanning diffraction, and full-field transmission and tomographic imaging capabilities with a spatial resolution of 30 nm over a spectral range of 6-12 keV. Modes of Operation Full-Field Transmission Imaging and Nanotomography X-ray transmission imaging uses both the absorption and phase shift of the X-ray beam by the sample as contrast mechanisms. Absorption contrast is used to map the sample density. Elemental constituents can be located by using differential edge contrast in this mode. Phase contrast can be highly sensitive to edges and interfaces even when the X-ray absorption is weak. These contrast mechanisms are exploited to image samples rapidly in full-field transmission mode under various environmental conditions, or combined with nanotomography methods to study the three-dimensional structure of complex and amorphous nanomaterials with the HXN.

276

Lensless X-Ray Imaging in Reflection  

NLE Websites -- All DOE Office Websites (Extended Search)

Lensless X-Ray Imaging in Reflection Print Lensless X-Ray Imaging in Reflection Print The advent of x-ray free-electron laser (XFEL) light sources has led to an outburst of research activities in the field of lensless imaging. XFELs combine the advantages of sychrotron light sources (high brightness and x-ray wavelengths relevant to atomic and molecular phenomena) with the advantages of visible-light lasers (highly coherent beams). All of these characteristics are important for coherent x-ray diffraction imaging-lensless imaging techniques that are proving to be integral to single-shot, high-resolution imaging of both complex materials and biological samples. Existing techniques are typically designed for transmission geometry, however, and use isolated objects, requiring special sample fabrication and restricting the type of samples under investigation. Recently, researchers from the ALS and the University of Oregon have shown at ALS Beamline 12.0.2 that it is possible to form x-ray holograms in reflection geometry by using the light scattered from a sample, opening the door to lensless imaging of a wealth of new material samples.

277

Lensless X-Ray Imaging in Reflection  

NLE Websites -- All DOE Office Websites (Extended Search)

X-Ray Imaging in Reflection Print X-Ray Imaging in Reflection Print The advent of x-ray free-electron laser (XFEL) light sources has led to an outburst of research activities in the field of lensless imaging. XFELs combine the advantages of sychrotron light sources (high brightness and x-ray wavelengths relevant to atomic and molecular phenomena) with the advantages of visible-light lasers (highly coherent beams). All of these characteristics are important for coherent x-ray diffraction imaging-lensless imaging techniques that are proving to be integral to single-shot, high-resolution imaging of both complex materials and biological samples. Existing techniques are typically designed for transmission geometry, however, and use isolated objects, requiring special sample fabrication and restricting the type of samples under investigation. Recently, researchers from the ALS and the University of Oregon have shown at ALS Beamline 12.0.2 that it is possible to form x-ray holograms in reflection geometry by using the light scattered from a sample, opening the door to lensless imaging of a wealth of new material samples.

278

Lensless X-Ray Imaging in Reflection  

NLE Websites -- All DOE Office Websites (Extended Search)

X-Ray Imaging in Reflection Print X-Ray Imaging in Reflection Print The advent of x-ray free-electron laser (XFEL) light sources has led to an outburst of research activities in the field of lensless imaging. XFELs combine the advantages of sychrotron light sources (high brightness and x-ray wavelengths relevant to atomic and molecular phenomena) with the advantages of visible-light lasers (highly coherent beams). All of these characteristics are important for coherent x-ray diffraction imaging-lensless imaging techniques that are proving to be integral to single-shot, high-resolution imaging of both complex materials and biological samples. Existing techniques are typically designed for transmission geometry, however, and use isolated objects, requiring special sample fabrication and restricting the type of samples under investigation. Recently, researchers from the ALS and the University of Oregon have shown at ALS Beamline 12.0.2 that it is possible to form x-ray holograms in reflection geometry by using the light scattered from a sample, opening the door to lensless imaging of a wealth of new material samples.

279

Compton backscattered collimated x-ray source  

SciTech Connect

A high-intensity, inexpensive and collimated x-ray source for applications such as x-ray lithography is disclosed. An intense pulse from a high power laser, stored in a high-finesse resonator, repetitively collides nearly head-on with and Compton backscatters off a bunched electron beam, having relatively low energy and circulating in a compact storage ring. Both the laser and the electron beams are tightly focused and matched at the interaction region inside the optical resonator. The laser-electron interaction not only gives rise to x-rays at the desired wavelength, but also cools and stabilizes the electrons against intrabeam scattering and Coulomb repulsion with each other in the storage ring. This cooling provides a compact, intense bunch of electrons suitable for many applications. In particular, a sufficient amount of x-rays can be generated by this device to make it an excellent and flexible Compton backscattered x-ray (CBX) source for high throughput x-ray lithography and many other applications.

Ruth, Ronald D. (Woodside, CA); Huang, Zhirong (Stanford, CA)

1998-01-01T23:59:59.000Z

280

Compton backscattered collmated X-ray source  

SciTech Connect

A high-intensity, inexpensive and collimated x-ray source for applications such as x-ray lithography is disclosed. An intense pulse from a high power laser, stored in a high-finesse resonator, repetitively collides nearly head-on with and Compton backscatters off a bunched electron beam, having relatively low energy and circulating in a compact storage ring. Both the laser and the electron beams are tightly focused and matched at the interaction region inside the optical resonator. The laser-electron interaction not only gives rise to x-rays at the desired wavelength, but also cools and stabilizes the electrons against intrabeam scattering and Coulomb repulsion with each other in the storage ring. This cooling provides a compact, intense bunch of electrons suitable for many applications. In particular, a sufficient amount of x-rays can be generated by this device to make it an excellent and flexible Compton backscattered x-ray (CBX) source for high throughput x-ray lithography and many other applications.

Ruth, Ronald D. (Woodside, CA); Huang, Zhirong (Stanford, CA)

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Lensless X-Ray Imaging in Reflection  

NLE Websites -- All DOE Office Websites (Extended Search)

Lensless X-Ray Imaging in Reflection Print Lensless X-Ray Imaging in Reflection Print The advent of x-ray free-electron laser (XFEL) light sources has led to an outburst of research activities in the field of lensless imaging. XFELs combine the advantages of sychrotron light sources (high brightness and x-ray wavelengths relevant to atomic and molecular phenomena) with the advantages of visible-light lasers (highly coherent beams). All of these characteristics are important for coherent x-ray diffraction imaging-lensless imaging techniques that are proving to be integral to single-shot, high-resolution imaging of both complex materials and biological samples. Existing techniques are typically designed for transmission geometry, however, and use isolated objects, requiring special sample fabrication and restricting the type of samples under investigation. Recently, researchers from the ALS and the University of Oregon have shown at ALS Beamline 12.0.2 that it is possible to form x-ray holograms in reflection geometry by using the light scattered from a sample, opening the door to lensless imaging of a wealth of new material samples.

282

Full-field Transmission X-ray Microscopy | Stanford Synchrotron Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

BL6-2c / Transmission X-ray Microscopy BL6-2c / Transmission X-ray Microscopy Home Researchers Publications Science Highlights Department of Energy Office of Science Search form Search Search TXM Search Full-field Transmission X-ray Microscopy Capabilities Full-field TXM is an excellent method to examine nanoscale heterogeneties in many materials, including complex hierarchical systems such as catalysts, fuel cells and battery electrodes, and biological and environmental samples, at 30 nm resolution.The transmission X-ray microscope (TXM) on beam line 6-2c at SSRL is capable of 2D imaging and tomography, as well as spectroscopic imaging for 2D and 3D elemental mapping and chemical mapping over tens of microns (up to mm in 2D). The field of view (FOV) is 30 microns, but mosaic images can be collected to

283

Schmahl, Kirz Receive Compton Award for Contributions to X-ray Microscopy  

NLE Websites -- All DOE Office Websites (Extended Search)

Schmahl, Kirz Received Compton Award for Contributions to X-ray Microscopy Schmahl, Kirz Received Compton Award for Contributions to X-ray Microscopy Image of Compton Award The Advanced Photon Source (APS) and APS Users Organization (APSUO) are very pleased to announce that the 2005 Arthur H. Compton Award was given to Günter Schmahl and Janos Kirz for pioneering and developing the field of x-ray microscopy using Fresnel zone plates. Because of their leadership over the last 30 years, x-ray microscopy has evolved into a powerful method for the study of nanoscale structures and phenomena in many areas of science. Their achievements have opened up productive research avenues in biology, polymers, electronic nanostructures, magnetic materials, meteoritics, and environmental sciences. " Günter Schmahl and Janos Kirz have created a

284

The Road to Ultrahigh-Resolution X-ray Spectrometers | Advanced Photon  

NLE Websites -- All DOE Office Websites (Extended Search)

How Atoms Behave: Characteristics of Microstructural Avalanches How Atoms Behave: Characteristics of Microstructural Avalanches Iodate Refuses to Intimidate Creating the Heart of a Planet in the Heart of a Gem How a Powerful Antibody Neutralizes HIV Taking a Page from Nature to Build Better Nanomaterials Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed The Road to Ultrahigh-Resolution X-ray Spectrometers NOVEMBER 22, 2011 Bookmark and Share Basic phenomena underlying the AD&AT x-ray optics. In x-ray Bragg diffraction from atomic planes composing nonzero angle η to the crystal entrance face, the crystal acts (a) like an optical prism dispersing the photons into a divergent x-ray fan with photons of different energies E

285

Air Handler Condensate Recovery at the Environmental Protection Agency's Science and Ecosystem Support Division: Best Management Practice Case Study #14; Alternate Water Sources (Fact Sheet)  

SciTech Connect

FEMP Water Efficiency Best Management Practice #14 Case Study: Overview of the air handler condensate recovery program at the Environmental Protection Agency's Science and Ecosystem Support Division.

Not Available

2010-02-01T23:59:59.000Z

286

Copper Ridges Nearly Double X-ray Sensor Performance  

Science Conference Proceedings (OSTI)

... Physics Letters,* can measure X-ray energies with an ... X-rays and measure the energy based on ... by NASA and the NIST Office of Microelectronics ...

2011-10-03T23:59:59.000Z

287

Sandia National Laboratories X-ray Tube with Magnetic Electron ...  

... for the U.S. Department of Energy’s National ... high average power large area X-ray tube provides increased X-ray generation efficiency through ...

288

LUSI :: LCLS Ultrafast Science Instruments  

NLE Websites -- All DOE Office Websites (Extended Search)

Go Home Project Pages LUSI Instruments Uniqueness of FEL X-rays X-ray FEL Science About LCLS Science with LCLS Calendar & Meetings Contact Us Office of ScienceU.S. DOE Current...

289

Physica B 283 (2000) 75}78 Phase-sensitive surface X-ray scattering study of a crystalline  

E-Print Network (OSTI)

Physica B 283 (2000) 75}78 Phase-sensitive surface X-ray scattering study of a crystalline organic}organic An X-ray study of a crystalline organic}organic heterostructure, consisting of a "lm of PTCDA (3 the determination of d with great sensitivity. 2000 Elsevier Science B.V. All rights reserved. PACS: 61.66.Hq; 68

Schreiber, Frank

290

Fundamental & Computational Sciences Directorate at PNNL - Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

Biological Sciences Division Biological Sciences Division Technical Groups Radiation Biology Biological Sciences BSD Home About the Division Research Initiatives Research...

291

Environmental Sciences Division annual progress report for period ending September 30, 1990  

SciTech Connect

The Environmental Sciences Division (ESD) of Oak Ridge National Laboratory (ORNL) conducts research on the environmental aspects of existing and emerging energy systems and applies this information to ensure that technology development and energy use are consistent with national environmental health and safety goals. Offering an interdisciplinary resource of staff and facilities to address complex environmental problems, the division is currently providing technical leadership for major environmental issues of national concern: (1) acidic deposition and related environmental effects, (2) effects of increasing concentrations of atmospheric CO{sub 2} and the resulting climatic changes to ecosystems and natural and physical resources, (3) hazardous chemical and radioactive waste disposal and remediation research and development, and (4) development of commercial biomass energy production systems. This progress report outlines ESD's accomplishments in these and other areas in FY 1990. Individual reports are processed separately for the data bases in the following areas: ecosystem studies; environmental analyses; environmental toxicology; geosciences; technical and administrative support; biofuels feedstock development program; carbon dioxide information analysis and research program; and environmental waste program.

1991-04-01T23:59:59.000Z

292

Environmental Sciences Division annual progress report for period ending September 30, 1990  

DOE Green Energy (OSTI)

The Environmental Sciences Division (ESD) of Oak Ridge National Laboratory (ORNL) conducts research on the environmental aspects of existing and emerging energy systems and applies this information to ensure that technology development and energy use are consistent with national environmental health and safety goals. Offering an interdisciplinary resource of staff and facilities to address complex environmental problems, the division is currently providing technical leadership for major environmental issues of national concern: (1) acidic deposition and related environmental effects, (2) effects of increasing concentrations of atmospheric CO{sub 2} and the resulting climatic changes to ecosystems and natural and physical resources, (3) hazardous chemical and radioactive waste disposal and remediation research and development, and (4) development of commercial biomass energy production systems. This progress report outlines ESD's accomplishments in these and other areas in FY 1990. Individual reports are processed separately for the data bases in the following areas: ecosystem studies; environmental analyses; environmental toxicology; geosciences; technical and administrative support; biofuels feedstock development program; carbon dioxide information analysis and research program; and environmental waste program.

Not Available

1991-04-01T23:59:59.000Z

293

ANL/MCS-TM-331 Mathematics and Computer Science Division Availability of This Report  

NLE Websites -- All DOE Office Websites (Extended Search)

Performance Analysis of Darshan 2.2.3 Performance Analysis of Darshan 2.2.3 on the Cray XE6 Platform ANL/MCS-TM-331 Mathematics and Computer Science Division Availability of This Report This report is available, at no cost, at http://www.osti.gov/bridge. It is also available on paper to the U.S. Department of Energy and its contractors, for a processing fee, from: U.S. Department of Energy Office of Scientific and Technical Information P.O. Box 62 Oak Ridge, TN 37831-0062 phone (865) 576-8401 fax (865) 576-5728 reports@adonis.osti.gov Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor UChicago Argonne, LLC, nor any of their employees or officers, makes any warranty, express

294

Hierarchical Diagnosis J. E. Kristjansson and C-Y.J. Kao Earth and Environmental Sciences Division  

NLE Websites -- All DOE Office Websites (Extended Search)

Kristjansson and C-Y.J. Kao Kristjansson and C-Y.J. Kao Earth and Environmental Sciences Division Los Alamos National Laboratory Los Alamos, NM 87545 Most of today's general circulation models (GCMs) have a greatly simplified treatment of condensation and clouds. Recent observational studies of the earth's radiation budget have suggested cloud-related feedback mechanisms to be of tremendous importance for the issue of global change. Thus, an urgent need for improvements in the treatment of clouds in GCMs has arisen, especially as the clouds relate to radiation. In this paper, we investigate the effects of introducing prognostic cloud water into the Los Alamos GCM. The cloud water field, produced by both stratiform and convective condensation, is subject to 3-dimensional advection and vertical diffusion. The

295

ORNLIRASA-95117 LIFE SCIENCES DIVISION Environmental Restoration and Waste Management Non-Defense Programs  

Office of Legacy Management (LM)

95117 95117 LIFE SCIENCES DIVISION Environmental Restoration and Waste Management Non-Defense Programs (Activity No. EX 20 20 01 0; ADS1310AA) Results of the Independent Radiological Verification Survey at the Former Chapman Valve Manufacturing Company, Indian Orchard, Massachusetts (cIooo1v) R. E. Rodriguez and C. A. Johnson Date issued -May 1997 Investigation Team R. D. Foley-Measurement Applications and Development Manager M. E. Murray-FUSRAP Project Director R. E. Rodriguez-Field Survey Team Leader Survey Team Members R. C. Gosslee V. P. Patania R. E. Rodriguez Work performed by the Measurement Applications and Development Group Prepared by the OAK RIDGE NATIONAL LABORATORY Oak Ridge, Tennessee 37831-6285 managed by LOCKHEED MARTIN ENERGY RESEARCH CORP.

296

Radiographic X-Ray Pulse Jitter  

Science Conference Proceedings (OSTI)

The Dual Beam Radiographic Facility consists of two identical radiographic sources. Major components of the machines are: Marx generator, water-filled pulse-forming line (PFL), water-filled coaxial transmission line, three-cell inductive voltage adder, and rod-pinch diode. The diode pulse has the following electrical specifications: 2.25-MV, 60-kA, 60-ns. Each source has the following x-ray parameters: 1-mm-diameter spot size, 4-rad at 1 m, 50-ns full width half max. The x-ray pulse is measured with PIN diode detectors. The sources were developed to produce high resolution images on single-shot, high-value experiments. For this application it is desirable to maintain a high level of reproducibility in source output. X-ray pulse jitter is a key metric for analysis of reproducibility. We will give measurements of x-ray jitter for each machine. It is expected that x-ray pulse jitter is predominantly due to PFL switch jitter, and therefore a correlation of the two will be discussed.

Mitton, C. V., Good, D. E., Henderson, D. J., Hogge, K. W.

2011-01-15T23:59:59.000Z

297

MATERIALS AND MOLECULAR RESEARCH DIVISION ANNUAL REPORT 1979  

E-Print Network (OSTI)

the Division of Materials Sciences, Office of Basic EnergyDivision of lllaterials Sciences, Office of Basic :energyDivision of Materials Sciences, Office of the Basic Energy

Authors, Various

2013-01-01T23:59:59.000Z

298

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution  

NLE Websites -- All DOE Office Websites (Extended Search)

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print Analytical tools that combine spatial resolution with elemental and chemical identification at the nanometer scale along with large penetration depth are indispensable for the life and physical sciences. The XM-1 soft x-ray microscope at the ALS produces images that not only reveal structures but can identify their chemical elements and measure magnetic and other properties as well. Now a new method for creating optical devices with nanoscale accuracy has allowed researchers in Berkeley Lab's Center for X-Ray Optics (CXRO), which built and operates the XM-1, to achieve an extraordinary resolution of better than 15 nm, with the promise of even higher resolution in the near future.

299

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution  

NLE Websites -- All DOE Office Websites (Extended Search)

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print Analytical tools that combine spatial resolution with elemental and chemical identification at the nanometer scale along with large penetration depth are indispensable for the life and physical sciences. The XM-1 soft x-ray microscope at the ALS produces images that not only reveal structures but can identify their chemical elements and measure magnetic and other properties as well. Now a new method for creating optical devices with nanoscale accuracy has allowed researchers in Berkeley Lab's Center for X-Ray Optics (CXRO), which built and operates the XM-1, to achieve an extraordinary resolution of better than 15 nm, with the promise of even higher resolution in the near future.

300

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution  

NLE Websites -- All DOE Office Websites (Extended Search)

New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution Print Analytical tools that combine spatial resolution with elemental and chemical identification at the nanometer scale along with large penetration depth are indispensable for the life and physical sciences. The XM-1 soft x-ray microscope at the ALS produces images that not only reveal structures but can identify their chemical elements and measure magnetic and other properties as well. Now a new method for creating optical devices with nanoscale accuracy has allowed researchers in Berkeley Lab's Center for X-Ray Optics (CXRO), which built and operates the XM-1, to achieve an extraordinary resolution of better than 15 nm, with the promise of even higher resolution in the near future.

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Nuclear Science Division annual report, July 1, 1981-September 30, 1982  

Science Conference Proceedings (OSTI)

This report summarizes the scientific research carried out within the Nuclear Science Division between July 1, 1981, and September 30, 1982. Heavy-ion investigations continue to dominate the experimental and theoretical research efforts. Complementary programs in light-ion nuclear science, in nuclear data evaluation, and in the development of advanced instrumentation are also carried out. Results from Bevalac experiments employing a wide variety of heavy ion beams, along with new or upgraded detector facilities (HISS, the Plastic Ball, and the streamer chamber) are contained in this report. These relativistic experiments have shed important light on the degree of equilibration for central collisions, the time evolution of a nuclear collision, the nuclear density and compressional energy of these collisions, and strange particle production. Reaction mechanism work dominates the heavy-ion research at the 88-Inch Cyclotron and the SuperHILAC. Recent experiments have contributed to our understanding of the nature of light-particle emission in deep-inelastic collisions, of peripheral reactions, incomplete fusion, fission, and evaporation. Nuclear structure investigations at these accelerators continue to be directed toward the understanding of the behavior of nuclei at high angular momentum. Research in the area of exotic nuclei has led to the observation at the 88-Inch Cyclotron of the ..beta..-delayed proton decay of odd-odd T/sub z/ = -2 nuclides; ..beta..-delayed proton emitters in the rare earth region are being investigated at the SuperHILAC.

Mahoney, J. (ed.)

1983-06-01T23:59:59.000Z

302

The Soft-X-Ray Spectral Shape of X-Ray-Weak Seyferts  

E-Print Network (OSTI)

(I) We observed eight Seyfert~2s and two X--ray--weak Seyfert~1/QSOs with the ROSAT PSPC, and one Seyfert~2 with the ROSAT HRI. These targets were selected from the Extended 12\\um\\ Galaxy Sample. (II) Both Seyfert~1/QSOs vary by factors of 1.5---2. The photon indices steepen in the more luminous state, consistent with the variability being mainly due to the softest X--rays, which are confined to a size of less than a parsec. (III) Both the Seyfert~2s and Seyfert~1/QSOs are best fit with a photon index of $\\Gamma\\sim3$, which is steeper than the canonical value of $\\Gamma\\sim1.7$ measured for X--ray--strong Seyferts by ROSAT and at higher energies. Several physical explanations are suggested for the steeper slopes of X--ray--weak objects. (IV) We observed one Seyfert~2, NGC~5005, with the ROSAT HRI, finding about 13\\% of the soft X--rays to come from an extended component. This and other observations suggest that different components to the soft X--ray spectrum of some, if not all, X--ray--weak Seyferts may come from spatially distinct regions.

Brian Rush; Matthew A. Malkan

1995-07-27T23:59:59.000Z

303

Sharper Focusing of Hard X-rays  

NLE Websites -- All DOE Office Websites (Extended Search)

Sharper Focusing of Hard X-rays FROM: Physics News Update Number 773 #1, April 12, 2006, by Phil Schewe and Ben Stein Note: This text has been slightly modified from the original. Sharper focusing of hard x-rays has been achieved with a device developed at Argonne National Lab. Because of their high energy, x-rays are hard to focus: they can be reflected from a surface but only at a glancing angle (less than a tenth of a degree); they can be refracted but the index of refraction is very close to 1, so that making efficient lenses becomes a problem; and they can be diffracted, but the relatively thick, variable pitch grating required for focusing is tricky to achieve. The Argonne device is of the diffraction type, and it consists of a stack of alternating layers of metal and silicon, made by depositing progressively thicker layers. When the x-rays fall on such a structure, nearly edge-on, what they see is a grating (called a linear zone plate) consisting of a sort of bar-code pattern.

304

Multiple wavelength x-ray monochromators  

DOE Patents (OSTI)

An apparatus and method is provided for separating input x-ray radiation containing first and second x-ray wavelengths into spatially separate first and second output radiation which contain the first and second x-ray wavelengths, respectively. The apparatus includes a crystalline diffractor which includes a first set of parallel crystal planes, where each of the planes is spaced a predetermined second distance from one another. The crystalline diffractor also includes a second set of parallel crystal planes inclined at an angle with respect to the first set of crystal planes where each of the planes of the second set of parallel crystal planes is spaced a predetermined second distance from one another. In one embodiment, the crystalline diffractor is comprised of a single crystal. In a second embodiment, the crystalline diffractor is comprised of a stack of two crystals. In a third embodiment, the crystalline diffractor includes a single crystal that is bent for focussing the separate first and second output x-ray radiation wavelengths into separate focal points.

Steinmeyer, P.A.

1991-01-01T23:59:59.000Z

305

Multiple wavelength x-ray monochromators  

DOE Patents (OSTI)

An apparatus and method is provided for separating input x-ray radiation containing first and second x-ray wavelengths into spatially separate first and second output radiation which contain the first and second x-ray wavelengths, respectively. The apparatus includes a crystalline diffractor which includes a first set of parallel crystal planes, where each of the planes is spaced a predetermined second distance from one another. The crystalline diffractor also includes a second set of parallel crystal planes inclined at an angle with respect to the first set of crystal planes where each of the planes of the second set of parallel crystal planes is spaced a predetermined second distance from one another. In one embodiment, the crystalline diffractor is comprised of a single crystal. In a second embodiment, the crystalline diffractor is comprised of a stack of two crystals. In a third embodiment, the crystalline diffractor includes a single crystal that is bent for focussing the separate first and second output x-ray radiation wavelengths into separate focal points.

Steinmeyer, P.A.

1991-12-31T23:59:59.000Z

306

Massively parallel X-ray scattering simulations  

Science Conference Proceedings (OSTI)

Although present X-ray scattering techniques can provide tremendous information on the nano-structural properties of materials that are valuable in the design and fabrication of energy-relevant nano-devices, a primary challenge remains in the analyses ...

Abhinav Sarje; Xiaoye S. Li; Slim Chourou; Elaine R. Chan; Alexander Hexemer

2012-11-01T23:59:59.000Z

307

X-Ray and Neutron Diffraction  

Science Conference Proceedings (OSTI)

Oct 20, 2010 ... Advanced X-Ray Scattering Techniques for Multi-Length Scale ... ?-Ti using the 3DXRD station 34-ID-E at the Advanced Photon Source, Argonne National Laboratory. ... Research at APS 34-ID-E, partly funded by BES/DOE.

308

Soft x-ray laser microscope  

Science Conference Proceedings (OSTI)

The program consisted of two phases (Phase I and Phase II). The goal of the Phase I (first year program) was to design and construct the Soft X-ray Laser Contact Microscope. Such microscope was constructed and adapted to PPL's 18.2nm soft X-ray Laser (SXL), which in turn was modified and prepared for microscopy experiments. Investigation of the photoresist response to 18.2nm laser radiation and transmissivity of 0.1m thick silicion-nitride (Si[sub 3]N[sub 4]) windows were important initial works. The goal of the first year of Phase II was to construct X-ray contact microscope in combination with existing optical phase microscope, already used by biologists. In the second year of Phase II study of dehydrated Horeseshoe Crab and Hela cancer cells were performed with COXRALM. Also during Phase II, the Imaging X-Ray Laser Microscope (IXRALM) was designed and constructed. This paper describes the development of each of the microscopes and their application for research.

Suckewer, P.I.

1990-10-01T23:59:59.000Z

309

Small Angle X-Ray Scattering Detector  

DOE Patents (OSTI)

A detector for time-resolved small-angle x-ray scattering includes a nearly constant diameter, evacuated linear tube having an end plate detector with a first fluorescent screen and concentric rings of first fiber optic bundles for low angle scattering detection and an annular detector having a second fluorescent screen and second fiber optic bundles concentrically disposed about the tube for higher angle scattering detection. With the scattering source, i.e., the specimen under investigation, located outside of the evacuated tube on the tube's longitudinal axis, scattered x-rays are detected by the fiber optic bundles, to each of which is coupled a respective photodetector, to provide a measurement resolution, i.e., dq/q, where q is the momentum transferred from an incident x-ray to an x-ray scattering specimen, of 2% over two (2) orders of magnitude in reciprocal space, i.e., qmax/qmin approx=lO0.

Hessler, Jan P.

2004-06-15T23:59:59.000Z

310

Microstructure of B2 CoTi and CoZr Determined by 3D X-Ray ...  

Science Conference Proceedings (OSTI)

Symposium, Neutron and X-Ray Studies of Advanced Materials VI: Centennial and ... was used at the 1-ID beamline of APS, Argonne National Laboratory to extract the ... Materials Science Enabled by the Advanced Photon Source Upgrade.

311

Chemical and Materials Science (XSD) | Advanced Photon Source  

NLE Websites -- All DOE Office Websites (Extended Search)

Chemical and Materials Science (X-ray Science Division) Chemical and Materials Science (X-ray Science Division) The CMS group has operational responsibility for four experiment stations at sector 12 including: three undulator stations (12-ID-B, -C, and -D), and a spectroscopy and scattering bending magnet beamline (12-BM), and USAXS at 15-ID. As part of the APS Strategic Plan, canted undulators have been installed on 12-ID and 12-ID-B has become a full-time dedicated SAXS beamline and 12-ID-C and 12-ID-D are shared between TRSAXS, ASAXS, and surface scattering. Time-resolved and anomalous SAXS experiments on photosystems, biopolymers, polymers, ceramics, and catalytic systems are some of the focus areas for 12-ID-B and -C. At 12-ID-D surface scattering are used to study MOCVD growth, ferroelectrics, liquid solid interfaces and

312

X-Ray Interactions with Matter  

DOE Data Explorer (OSTI)

The primary interactions of low-energy x-rays within condensed matter, viz. photoabsorption and coherent scattering, are described for photon energies outside the absorption threshold regions by using atomic scattering factors. The atomic scattering factors may be accurately determined from the atomic photoabsorption cross sections using modified Kramers-Kronig dispersion relations. From a synthesis of the currently available experimental data and recent theoretical calculations for photoabsorption, the angle-independent, forward-scattering components of the atomic scattering factors have been thus semiempirically determined and tabulated here for 92 elements and for the region 50-30,000 eV. Atomic scattering factors for all angles of coherent scattering and at the higher photon energies are obtained from these tabulated forward-scattering values by adding a simple angle-dependent form-factor correction. The incoherent scattering contributions that become significant for the light elements at the higher photon energies are similarly determined. The basic x-ray interaction relations that are used in applied x-ray physics are presented here in terms of the atomic scattering factors. The bulk optical constants are also related to the atomic scattering factors. These atomic and optical relations are applied to the detailed calculation of the reflectivity characteristics of a series of practical x-ray mirror, multilayer, and crystal monochromators. Comparisons of the results of this semiempirical,"atom-like", description of x-ray interactions for the low-energy region with those of experiment and ab initio theory are presented. (Taken from the abstract in OSTI Record 6131765) (Specialized Interface)

Henke, B.L.; Gullikson, E.M.; Davis, J.C.

313

SLAC National Accelerator Laboratory - Environmental Science  

NLE Websites -- All DOE Office Websites (Extended Search)

and Environmental Interface Science at SSRL Environmental Remediation Science at SSRL Science Focus Area: SSRL Environmental Remediation Program X-ray Science at SLAC...

314

A kpc-scale X-ray jet in the BL Lac source S5 2007+777  

E-Print Network (OSTI)

X-ray jets in AGN are commonly observed in FRII and FRI radio-galaxies, but rarely in BL Lacs, most probably due to their orientation close to the line of sight and the ensuing foreshortening effects. Only three BL Lacs are known so far to contain a kpc-scale X-ray jet. In this paper, we present the evidence for the existence of a fourth extended X-ray jet in the classical radio-selected source S5 2007+777, which for its hybrid FRI/II radio morphology has been classified as a HYMOR (HYbrid MOrphology Radio source). Our Chandra ACIS-S observations of this source revealed an X-ray counterpart to the 19"-long radio jet. Interestingly, the X-ray properties of the kpc-scale jet in S5 2007+777 are very similar to those observed in FRII jets. First, the X-ray morphology closely mirrors the radio one, with the X-rays being concentrated in the discrete radio knots. Second, the X-ray continuum of the jet/brightest knot is described by a very hard power law, with photon index Gamma_x~1, although the uncertainties are large. Third, the optical upper limit from archival HST data implies a concave radio-to-X-ray SED. If the X-ray emission is attributed to IC/CMB with equipartition, strong beaming (delta=13) is required, implying a very large scale (Mpc) jet. The beaming requirement can be somewhat relaxed assuming a magnetic field lower than equipartition. Alternatively, synchrotron emission from a second population of very high-energy electrons is viable. Comparison to other HYMOR jets detected with Chandra is discussed, as well as general implications for the origin of the FRI/II division.

Rita M. Sambruna; Davide Donato; C. C. Cheung; F. Tavecchio; L. Maraschi

2008-05-07T23:59:59.000Z

315

Rise time measurement for ultrafast X-ray pulses  

Science Conference Proceedings (OSTI)

A pump-probe scheme measures the rise time of ultrafast x-ray pulses. Conventional high speed x-ray diagnostics (x-ray streak cameras, PIN diodes, diamond PCD devices) do not provide sufficient time resolution to resolve rise times of x-ray pulses on the order of 50 fs or less as they are being produced by modern fast x-ray sources. Here, we are describing a pump-probe technique that can be employed to measure events where detector resolution is insufficient to resolve the event. The scheme utilizes a diamond plate as an x-ray transducer and a p-polarized probe beam.

Celliers, Peter M. (Berkeley, CA); Weber, Franz A. (Oakland, CA); Moon, Stephen J. (Tracy, CA)

2005-04-05T23:59:59.000Z

316

Rise Time Measurement for Ultrafast X-Ray Pulses  

DOE Patents (OSTI)

A pump-probe scheme measures the rise time of ultrafast x-ray pulses. Conventional high speed x-ray diagnostics (x-ray streak cameras, PIN diodes, diamond PCD devices) do not provide sufficient time resolution to resolve rise times of x-ray pulses on the order of 50 fs or less as they are being produced by modern fast x-ray sources. Here, we are describing a pump-probe technique that can be employed to measure events where detector resolution is insufficient to resolve the event. The scheme utilizes a diamond plate as an x-ray transducer and a p-polarized probe beam.

Celliers, Peter M.; Weber, Franz A.; Moon, Stephen J.

2005-04-05T23:59:59.000Z

317

X-ray flashes and X-ray rich gamma ray bursts. Memorie della Societa’ Astronomica Italiana  

E-Print Network (OSTI)

Abstract. X-ray flashes are detected in the Wide Field Cameras on BeppoSAX in the energy range 2-25 keV as bright X-ray sources lasting of the order of minutes, but remaining undetected in the Gamma Ray Bursts Monitor on BeppoSAX. They have properties very similar to the x-ray counterparts of GRBs and account for some of the Fast X-ray Transient events seen in almost every x-ray satellite. We review their X-ray properties and show that x-ray flashes are in fact very soft, x-ray rich, untriggered gamma ray bursts, in which the peak energy in 2-10 keV x-rays could be up to a factor of 100 larger than the peak energy in the 50-300 keV gamma ray range. The frequency is ? 100 yr ?1. 1 Fast X-ray Transients/High-latitude X-ray Transients Fast X-ray Transients have been observed with many x-ray satellites. In particular they are seen with x-ray instruments that scan the entire sky on a regular basis. Such events are detected in one sky scan and disappeared in the next, typically limiting the duration to be longer than a minute and shorter than a few hours. For this reason they are called Fast Transients. The first transients

John Heise; Jean In ’t Z; Peter M. Woods

2001-01-01T23:59:59.000Z

318

Biosciences Division | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Publications Newsletters Organizational Charts Research Highlights Media Mentions Energy and Transportation Science Division Electrical and Electronics Systems Research Division Building Technologies Program Sustainable Transportation Program Clean Energy Home | Science & Discovery | Clean Energy | Supporting Organizations | Biosciences Division SHARE Biosciences Division The objective of the Biosciences Division (BSD) at Oak Ridge National Laboratory is to advance science and technology to better understand complex biological systems and their relationship with the environment. The division has expertise and special facilities in genomics, computational biology, microbiology, microbial ecology, biophysics and structural biology, and plant sciences. This collective expertise includes

319

X-rays Illuminate Ancient Archimedes Text  

NLE Websites -- All DOE Office Websites (Extended Search)

Related Links: Related Links: May 2005 Headlines TIP Article Press Release Walters Art Museum SSRL Home Page SLAC Home Page Stanford Home Page Tuesday, 31 May 2005 X-rays Illuminate Ancient Archimedes Text (contact: Uwe Bergmann, bergmann@slac.stanford.edu) Archimedes Figure Image provided by Will Noel, The Walters Art Museum An early transcription of Archimedes' mathematical theories has been brought to light through the probing of high-intensity x-rays at SSRL's BL6-2. The text contains part of the Method of Mechanical Theorems, one of Archimedes' most important works, which was probably copied out by a scribe in the tenth century. The parchment on which it was written was later scraped down and reused as pages in a twelfth century prayer book, producing a document known as a palimpsest (which comes from the Greek,

320

High resolution x-ray microscope  

Science Conference Proceedings (OSTI)

The authors present x-ray images of grid meshes and biological material obtained using a microspot x-ray tube with a multilayer optic and a 92-element parabolic compound refractive lens (CRL) made of a plastic containing only hydrogen and carbon. Images obtained using this apparatus are compared with those using an area source with a spherical lens and a spherical lens with multilayer condenser. The authors found the best image quality using the multilayer condenser with a parabolic lens, compared to images with a spherical lens and without the multilayer optics. The resolution was measured using a 155-element parabolic CRL and a multilayer condenser with the microspot tube. The experiment demonstrates about 1.1 {mu}m resolution.

Gary, C. K.; Park, H.; Lombardo, L. W.; Piestrup, M. A.; Cremer, J. T.; Pantell, R. H.; Dudchik, Y. I. [Adelphi Technology, Inc. 981-B Industrial Road, San Carlos, California 94070 (United States); Department of Electrical Engineering, Stanford University, Stanford, California 94305 (United States); Institute of Applied Physics Problems, Kurchatova 7, Minsk 220064 (Belarus)

2007-04-30T23:59:59.000Z

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

A New Multilayer-Based Grating for Hard X-ray Grating Interferometry |  

NLE Websites -- All DOE Office Websites (Extended Search)

The Most Detailed Picture Yet of a Key AIDS Protein The Most Detailed Picture Yet of a Key AIDS Protein Superconductivity with Stripes How HIV Infects Cells Simulating Deep Earthquakes in the Laboratory A "Sponge" Path to Better Catalysts and Energy Materials Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed A New Multilayer-Based Grating for Hard X-ray Grating Interferometry November 20, 2013 Bookmark and Share An image of the phase shift in the mouse kidney from a Bonse-Hart interferometer built utilizing the new micro-multilayer grating provides a projection view of the blood vessels. A new kind of x-ray multilayer grating that could open a pathway for high-sensitivity, hard x-ray phase contrast full-field imaging of large

322

SSRL School 2007 on Hard X-ray Scattering Techniques in MES  

NLE Websites -- All DOE Office Websites (Extended Search)

May 15-17, 2007 SSRL School on Hard X-ray Scattering Techniques in Materials and Environmental Sciences Group photo taken at the SSRL School on Hard X-ray Scattering Techniques in Materials and Environmental Sciences. A large, printable version of this group image is available via clicking on the image. Overview: Modern synchrotron-based X-ray scattering (SR-XRS) techniques offer the ability to probe nano- and atomic-scale structures and order/disorder relationships that critically govern the properties of advanced technological and environmental materials. The high collimation, intensity, and tunability of SR allow the investigation of a wide range of materials, including thin films and interfaces, nanoparticles, amorphous materials, solutions, hydrated and disordered bacteriogenic minerals,

323

SSRL School on Synchrotron X-ray Spectroscopy Techniques in Environmental  

NLE Websites -- All DOE Office Websites (Extended Search)

Home Home Agenda Location Visitor Information Transportation Tourism & Dining SSRL School on Synchrotron X-ray Spectroscopy Techniques in Environmental and Materials Sciences: Theory and Application June 2-5, 2009 Group photo of the attendees at the SSRL School on X-ray Spectropscopy Techniques in Environmental and Materials Sciences: Theory and Application held June 2-5, 2009 at the Stanford Synchrotron Radiation Lightsource. » View photos from XAS 2009 Overview: Modern synchrotron radiation based X-ray absorption spectroscopy (SR-XAS) techniques offer the ability to probe local molecular scale physical and electronic structures that govern key properties of technological and environmental materials and molecular complexes. The high collimation, intensity, and tunability of SR allow the investigation of a wide range of materials, including thin films and interfaces, nanoparticles, amorphous materials, solutions, hydrated and disordered bacteriogenic minerals, soils, interfaces, and dissolved species.

324

Microscale X-ray Absorption Spectroscopy on the GSECARS Sector 13 at the APS  

E-Print Network (OSTI)

GeoSoilEnviroCARS (GSECARS) is a national user facility for frontier research in the earth sciences using synchrotrons radiation at the Advanced Photon Source, Argonne National Laboratory. GSECARS provides earth scientists with access to the high-brilliance hard x-rays from this third-generation synchrotrons light source. The research conducted at this facility will advance our knowledge of the composition, structure and properties of earth materials, the processes they control and the processes that produce them. All principal synchrotron-based analytical techniques in demand by earth scientists are being brought to bear on earth science problems: (1) high-pressure/high-temperature crystallography and spectroscopy using the diamond anvil cell; (2) high-pressure/high-temperature crystallography using the large-volume press; (3) powder, single crystal and interface diffraction; (4) x-ray absorption fine structure (XAFS) spectroscopy; (5) x-ray fluorescence microprobe analysis and microspectroscopy; and (6) mic...

Stephen-Sutto

2000-01-01T23:59:59.000Z

325

X-ray emission from the plasma is used as a proxy for the amount  

NLE Websites -- All DOE Office Websites (Extended Search)

X-ray emission from the plasma is used as a proxy for the amount X-ray emission from the plasma is used as a proxy for the amount of driven current. The solid line indicates the amount of x-ray emission predicted by a computer simulation if edge losses are not included, while the dashed line represents the computer simulation including edge losses. The colored points are experimental data from Alcator C-Mod. Contact: Gregory Wallace MIT Plasma Science and Fusion Center 175 Albany St. Cambridge, MA 02139 wallaceg@mit.edu Post deadline invited talk: Lower hybrid current drive at high density in the multi-pass regime A post-deadline invited talk explains how experiments on the Alcator C-Mod tokamak at the MIT Plasma Science and Fusion Center are making important steps towards learning how to keep future fusion power plants running 24/7.

326

Sample holder for x-ray diffractometry  

DOE Patents (OSTI)

A sample holder for use with x-ray diffractometers with the capability to rotate the sample, as well as to adjust the position of the sample in the x, y, and z directions. Adjustment in the x direction is accomplished through loosening set screws, moving a platform, and retightening the set screws. Motion translators are used for adjustment in the y and z directions. An electric motor rotates the sample, and receives power from the diffractometer.

Hesch, V.L.

1991-12-31T23:59:59.000Z

327

TENDER ENERGY X-RAY ABSORPTION  

NLE Websites -- All DOE Office Websites (Extended Search)

TENDER ENERGY X-RAY ABSORPTION TENDER ENERGY X-RAY ABSORPTION SPECTROSCOPY (TES) Project Team: S. Bare 1,2 , J. Brandes 3 , T. Buonassisi 4 , J. Chen 5,2 , M. Croft 6 , E. DiMasi 7 , A. Frenkel 8,2 , D. Hesterberg 9 , S. Hulbert 7,2 , S. Khalid 7 , S. Myneni 10 , P. Northrup 7,11 , E.T. Rasbury 11 , B. Ravel 12 , R. Reeder 11 , J. Rodriguez 7,2 , D. Sparks 5,13 , V. Stojanoff 7 , G. Waychunas 14 1 UOP LLC, 2 Synchrotron Catalysis Consortium, 3 Skidaway Inst. of Oceanography, 4 MIT Laboratory for Photovoltaics Research, 5 Univ. of Delaware, 6 Rutgers Univ., 7 Brookhaven National Lab, 8 Yeshiva Univ., 9 North Carolina State Univ., 10 Princeton Univ., 11 Stony Brook Univ., 12 NIST, 13 Delaware Environmental Inst., 14 Lawrence Berkeley National Lab TECHNIQUES: High performance and in-situ X-ray absorption spectroscopy and spatially-resolved XAS of

328

Hard X-ray Variability of AGN  

E-Print Network (OSTI)

Aims: Active Galactic Nuclei are known to be variable throughout the electromagnetic spectrum. An energy domain poorly studied in this respect is the hard X-ray range above 20 keV. Methods: The first 9 months of the Swift/BAT all-sky survey are used to study the 14 - 195 keV variability of the 44 brightest AGN. The sources have been selected due to their detection significance of >10 sigma. We tested the variability using a maximum likelihood estimator and by analysing the structure function. Results: Probing different time scales, it appears that the absorbed AGN are more variable than the unabsorbed ones. The same applies for the comparison of Seyfert 2 and Seyfert 1 objects. As expected the blazars show stronger variability. 15% of the non-blazar AGN show variability of >20% compared to the average flux on time scales of 20 days, and 30% show at least 10% flux variation. All the non-blazar AGN which show strong variability are low-luminosity objects with L(14-195 keV) < 1E44 erg/sec. Conclusions: Concerning the variability pattern, there is a tendency of unabsorbed or type 1 galaxies being less variable than the absorbed or type 2 objects at hardest X-rays. A more solid anti-correlation is found between variability and luminosity, which has been previously observed in soft X-rays, in the UV, and in the optical domain.

V. Beckmann; S. D. Barthelmy; T. J. -L. Courvoisier; N. Gehrels; S. Soldi; J. Tueller; G. Wendt

2007-09-14T23:59:59.000Z

329

Cocoa Butter and Related CompoundsChapter 14 New Method to Study Molecular Interactions in Fats—Synchrotron Radiation Microbeam X-ray Diffraction  

Science Conference Proceedings (OSTI)

Cocoa Butter and Related Compounds Chapter 14 New Method to Study Molecular Interactions in Fats—Synchrotron Radiation Microbeam X-ray Diffraction Food Science Health Nutrition eChapters Food Science & Technology Health - Nutrition - Bioc

330

Maria Cadeddu, James C. Liljegren, and Andrew Pazmany Decision and Information Sciences Division, Argonne National Laboratory, Argonne, IL  

NLE Websites -- All DOE Office Websites (Extended Search)

and Retrievals from a New 183-GHz Water Vapor Radiometer in the Arctic and Retrievals from a New 183-GHz Water Vapor Radiometer in the Arctic Maria Cadeddu, James C. Liljegren, and Andrew Pazmany Decision and Information Sciences Division, Argonne National Laboratory, Argonne, IL Prosensing, Inc., Amherst, MA This work was supported by the Climate Change Research Division, U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research, under contract W-31-109-Eng-38, as part of the DOE Atmospheric Radiation Measurement (ARM) Program. Argonne National Laboratory is managed by The University of Chicago for the U.S. Department of Energy. The two-channels microwave water vapor radiometer (MWR) shown in Fig. 1 measures brightness temperatures at the microwave frequencies of 23.8 and 31.4 GHz. Brightness

331

Message from the Division Director | U.S. DOE Office of Science...  

Office of Science (SC) Website

the Division Director Organization Chart .pdf file (82KB) Phone Listing .pdf file (129KB) SC Categorical Exclusions and NEPA Documents SLI & SS Budget Contact Information Safety,...

332

Energy Determination of X-Ray Transition Energies Using the ...  

Science Conference Proceedings (OSTI)

... We chose to measure x-ray transition energies from NIST ... This resulted in the production of x-ray emission ... would yield not only an energy scale for ...

2012-10-02T23:59:59.000Z

333

SLAC National Accelerator Laboratory - SLAC's X-ray Laser Explores...  

NLE Websites -- All DOE Office Websites (Extended Search)

X-ray Laser Explores Big Data Frontier By Glenn Roberts Jr. June 12, 2013 It's no surprise that the data systems for SLAC's Linac Coherent Light Source X-ray laser have drawn...

334

SLAC National Accelerator Laboratory - SLAC X-rays Help Discover...  

NLE Websites -- All DOE Office Websites (Extended Search)

which pulses 120 times a second. In the instant before the intense X-rays destroy a nanocrystal, detectors record a flash of X-ray diffraction information. Finally, scientists use...

335

Using Light to Control How X Rays Interact with Matter  

NLE Websites -- All DOE Office Websites (Extended Search)

Using Light to Control How X Rays Interact with Matter Using Light to Control How X Rays Interact with Matter Print Wednesday, 27 January 2010 00:00 Schemes that use one light...

336

Microstructural Mapping Using High-Energy X-Ray Scattering  

Science Conference Proceedings (OSTI)

Abstract Scope, Advanced characterization methods at the APS permit unique in- situ ... The combination of an undulator source, brilliance preserving optics and focusing .... Ultra-Small-Angle X-Ray Scattering—X-Ray Photon Correlation ...

337

MCS Division Organization Chart | Argonne National Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

Publications Documents MCS Division Organization Chart The Mathematics and Computer Science Division at Argonne National Laboratory mcsorgchart.pdf...

338

Strengthened lithium for x-ray blast windows  

Science Conference Proceedings (OSTI)

Lithium's high x-ray transparency makes it an attractive material for windows intended to protect soft x-ray diagnostics in high energy density experiments. Pure lithium is soft and weak, but lithium mixed with lithium hydride powder becomes harder and stronger, in principle without any additional x-ray absorption. A comparison with the standard material for x-ray windows, beryllium, suggests that lithium or lithium strengthened by lithium hydride may well be an excellent option for such windows.

Pereira, N. R. [Ecopulse Inc., P.O. Box 528, Springfield, Virginia 22150 (United States); Imam, M. A. [Materials Science and Technology Division, Naval Research Laboratory, Washington, DC 20375 (United States)

2008-05-15T23:59:59.000Z

339

Electron and X-Ray Microscopy: Structural Characterization of ...  

Science Conference Proceedings (OSTI)

Oct 28, 2009 ... Recent Advances in Structural Characterization of Materials: Electron and X-Ray Microscopy: Structural Characterization of Nanoscale ...

340

X-ray diffraction study of residual stress in model weldments. Final report  

Science Conference Proceedings (OSTI)

Residual stress in a model weldment in nickel plate was characterized using x-ray diffraction techniques. The stress was mapped in 2 mm divisions up to the boundary of the weld pool. Results were in generally good agreement with the stress levels previously predicted for this system by finite element studies at LLNL. Recommendations are made that would permit 1 mm/sup 2/ spatial resolution maps of residual stress in stainless steel weldments.

Stroud, R.D.; Shackelford, J.F.

1980-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

News Releases | Biosciences Division  

NLE Websites -- All DOE Office Websites (Extended Search)

News Releases News Releases BIO Home Page About BIO News Releases Research Publications People Contact Us Organization Chart Site Index Inside BIO BIO Safety About Argonne Biosciences Division News Releases Protein crystal samples are placed on a small metal tip so X-rays from the adjacent beam pipe can pass through them and diffract off the atoms inside the crystal. Lessening X-ray damage is healthy for protein discovery data too December 16, 2013 - New recommendations for using X-rays promise to speed investigations aimed at understanding the structure and function of biologically important proteins - information critical to the development of new drugs. Read more. Kayakers and boats traverse the branch of the Chicago River in the downtown area Argonne partners with Metropolitan Water Reclamation District to study Chicago River microbe population

342

X-ray Microscopy and Imaging: 2-BM  

NLE Websites -- All DOE Office Websites (Extended Search)

BM BM Introduction The 2-BM beamline offers measurement capabilities for x-ray microtomography, x-ray topography and x-ray microdiffraction. X-ray microtomography and x-ray diffraction instruments are installed on separate optical tables for independent operation with fast switch over time. Optically-coupled high-resolution CCD system is used for microtomography and topography with up to 1 micron spatial resolution. X-ray microdiffraction setup consists of KB microfocussing mirrors (~3 micron minimum spot), four-circle Huber diffractometer, high-precision translation sample stage, two orthogonally-mounted video cameras for viewing sample, fluorescence detector (Si-drift diode) and diffraction detector (a scintillation detector or a CCD). Three different levels of monochromaticity are available. Conventional monochromatic x-rays from a double-bounced Si (111) crystal monochromator (DCM, D E/E=1E-4), wide band-pass monochromatic x-rays from a double multilayer monochromator (DMM, D E/E=1~4E-2) and pink beam. The available x-ray range is from 5 keV to 30 keV. The lower limit is due to the x-ray windows and the upper limit is due to the critical angle of the x-ray mirror. Two different coatings (Cr and Pt) for the x-ray mirror allow either 20 keV or 30 keV energy cutoff.

343

Phase Contrast Microscopy with Soft and Hard X-rays  

E-Print Network (OSTI)

Calibration ­ Uses up part of dynamic range · Solution: ­ Soft x-rays: Back side Illumination ­ Hard xPhase Contrast Microscopy with Soft and Hard X-rays Using a Segmented Detector Benjamin Hornberger ­ Phase Contrast 101 · A Segmented Detector for Hard X-ray Microprobes ­ Segmented Silicon Chip ­ Charge

Homes, Christopher C.

344

Nuclear Science Division annual report, October 1, 1986--September 30, 1987  

Science Conference Proceedings (OSTI)

This report summarizes the activities of the Nuclear Science Division during the period October 1, 1986 to September 30, 1987. A highlight of the experimental program during this time was the completion of the first round of heavy-ion running at CERN with ultrarelativistic oxygen and sulfur beams. Very rapid progress is being made in the analysis of these important experiments and preliminary results are presented in this report. During this period, the Bevalac also continued to produce significant new physics results, while demand for beam time remained high. An important new community of users has arrived on the scene, eager to exploit the unique low-energy heavy-beam capabilities of the Bevalac. Another major highlight of the program has been the performance of the Dilepton Spectrometer which has entered into production running. Dileptons have been observed in the p + Be and Ca + Ca reactions at several bombarding energies. New data on pion production with heavy beams measured in the streamer chamber to shed light on the question of nuclear compressibility, while posing some new questions concerning the role of Coulomb forces on the observed pion spectra. In another quite different area, the pioneering research with radioactive beams is continuing and is proving to be one of the fastest growing programs at the Bevalac. Exotic secondary beams (e.g., 8He, 11Li, and 14Be) have been produced for fundamental nuclear physics studies. In order to further enhance the scientific research program and ensure the continued vitality of the facility, the Laboratory has proposed an upgrade of the existing Bevalac. Specifically, the Upgrade would replace the Bevatron with a modern, strong-focusing synchrotron to provide higher intensity and higher quality beams to continue the forefront research program. Other papers on nuclear physics research are included in this report.

Mahoney, J. (ed.)

1988-09-01T23:59:59.000Z

345

Quantitative Analysis of Mt. St. Helens Ash by X-Ray Diffraction and X-Ray Fluorescence Spectrometry  

Science Conference Proceedings (OSTI)

A quantitative study by x-ray diffraction, optical polarizing microscopy, and x-ray fluorescence spectrometry of fallout and ambient ash from three Mt. St. Helens eruptions has revealed a consistent picture of the mineralogical and elemental ...

Briant L. Davis; L. Ronald Johnson; Dana T. Griffen; William Revell Phillips; Robert K. Stevens; David Maughan

1981-08-01T23:59:59.000Z

346

X-Ray Imaging Crystal Spectrometer for Extended X-Ray Sources  

DOE Patents (OSTI)

Spherically or toroidally curved, double focusing crystals are used in a spectrometer for X-ray diagnostics of an extended X-ray source such as a hot plasma produced in a tokamak fusion experiment to provide spatially and temporally resolved data on plasma parameters such as ion temperature, toroidal and poloidal rotation, electron temperature, impurity ion charge-state distributions, and impurity transport. The imaging properties of these spherically or toroidally curved crystals provide both spectrally and spatially resolved X-ray data from the plasma using only one small spherically or toroidally curved crystal, thus eliminating the requirement for a large array of crystal spectrometers and the need to cross-calibrate the various crystals.

Bitter, Manfred L.; Fraekel, Benjamin; Gorman, James L.; Hill, Kenneth W.; Roquemore, Lane A.; Stodiek, Wolfgang; Goeler, Schweickhard von

1999-05-01T23:59:59.000Z

347

Applications and source development for high-repetition rate x-ray lasers  

Science Conference Proceedings (OSTI)

Many applications in material science, chemistry, and atomic physics require an x-ray source that has a repetition rate of 1 Hz to a few kHz. In these fields, a very wide range of photon energies is of interest. One application is time-resolved surface photoelectron spectroscopy and microscopy where low energy (energies below 100 eV are very good with higher energy capabilities expected in the future. In addition, prospects of table-top size x-ray lasers with kHz repetition rates are presented.

Eder, D.C.; Amendt, P.; Bolton, P.R. [and others

1993-07-30T23:59:59.000Z

348

X-ray Observations of Galaxies: The Importance of Deep High-Resolution Observations  

E-Print Network (OSTI)

X-ray observations of galaxies have grown from a curiosity into a full-fledged field of astronomy. These observations provide unique information on black holes, binary stars, and the hot phase of the ISM, which can be used to constrain the chemical evolution of the Universe, and the joint evolution of galaxies and massive black holes. These exciting results are due in large part to the high-resolution capability of {\\it Chandra}. To follow on {\\it Chandra} and push forward this science past the present capabilities, our community must build a high-resolution (sub-arcsecond) large-area (several square meters) X-ray telescope.

G. Fabbiano

2007-11-05T23:59:59.000Z

349

High energy resolution inelastic x-ray scattering at the SRI-CAT  

SciTech Connect

This report is a combination of vugraphs and two papers. The vugraphs give information on the beamline at the APS for IXS and the science addressable by IXS. They also cover the 10 milli-eV resolution spectrometer and the 200 milli-eV resolution spectrometer. The first paper covers the performance of the focusing Ge(444) backscattering analyzers for the inelastic x-ray scattering. The second paper discusses inelastic x-ray scattering from TiC and Ti single crystals.

Macrander, A.T.

1996-08-01T23:59:59.000Z

350

Calibrating X-ray Imaging Devices for Accurate Intensity Measurement  

SciTech Connect

The purpose of the project presented is to develop methods to accurately calibrate X-ray imaging devices. The approach was to develop X-ray source systems suitable for this endeavor and to develop methods to calibrate solid state detectors to measure source intensity. NSTec X-ray sources used for the absolute calibration of cameras are described, as well as the method of calibrating the source by calibrating the detectors. The work resulted in calibration measurements for several types of X-ray cameras. X-ray camera calibration measured efficiency and efficiency variation over the CCD. Camera types calibrated include: CCD, CID, back thinned (back illuminated), front illuminated.

Haugh, M. J.

2011-07-28T23:59:59.000Z

351

Apparatus for monitoring x-ray beam alignment  

DOE Patents (OSTI)

A self-contained, hand-held apparatus is provided for monitoring alignment of an x-ray beam in an instrument employing an x-ray source. The apparatus includes a transducer assembly containing a photoresistor for providing a range of electrical signals responsive to a range of x-ray beam intensities from the x-ray beam being aligned. A circuit, powered by a 7.5 VDC power supply and containing an audio frequency pulse generator whose frequency varies with the resistance of the photoresistor, is provided for generating a range of audible sounds. A portion of the audible range corresponds to low x-ray beam intensity. Another portion of the audible range corresponds to high x-ray beam intensity. The transducer assembly may include an a photoresistor, a thin layer of x-ray fluorescent material, and a filter layer transparent to x-rays but opaque to visible light. X-rays from the beam undergoing alignment penetrate the filter layer and excite the layer of fluorescent material. The light emitted from the fluorescent material alters the resistance of the photoresistor which is in the electrical circuit including the audio pulse generator and a speaker. In employing the apparatus, the x-ray beam is aligned to a complete alignment by adjusting the x-ray beam to produce an audible sound of the maximum frequency.

Steinmeyer, P.A.

1989-09-12T23:59:59.000Z

352

Direct detection of x-rays for protein crystallography  

DOE Patents (OSTI)

An apparatus and method for directly determining the crystalline structure of a protein crystal. The crystal is irradiated by a finely collimated x-ray beam. The interaction o f the x-ray beam with the crystal produces scattered x-rays. These scattered x-rays are detected by means of a large area, thick CCD which is capable of measuring a significant number of scattered x-rays which impact its surface. The CCD is capable of detecting the position of impact of the scattered x-ray on the surface of the CCD and the quantity of scattered x-rays which impact the same cell or pixel. This data is then processed in real-time and the processed data is outputted to produce an image of the structure of the crystal. If this crystal is a protein the molecular structure of the protein can be determined from the data received.

Atac, Muzaffer; McKay, Timothy

1997-12-01T23:59:59.000Z

353

Introduction to Neutron and X-Ray Scattering  

NLE Websites -- All DOE Office Websites (Extended Search)

Scattering Studies of Thin Scattering Studies of Thin Polymer Films Introduction to Neutron and X-Ray Scattering Sunil K. Sinha UCSD/LANL Acknowledgements: Prof. R.Pynn( Indiana U.) Prof. M.Tolan (U. Dortmund) Wilhelm Conrad Röntgen 1845-1923 1895: Discovery of X-Rays 1901 W. C. Röntgen in Physics for the discovery of x-rays. 1914 M. von Laue in Physics for x-ray diffraction from crystals. 1915 W. H. Bragg and W. L. Bragg in Physics for crystal structure determination. 1917 C. G. Barkla in Physics for characteristic radiation of elements. 1924 K. M. G. Siegbahn in Physics for x-ray spectroscopy. 1927 A. H. Compton in Physics for scattering of x-rays by electrons. 1936 P. Debye in Chemistry for diffraction of x-rays and electrons in gases.

354

Bruker Workshop on Single Crystal X-Ray Diffraction  

NLE Websites -- All DOE Office Websites (Extended Search)

Diagnosis and Treatment of Problem Structures: Diagnosis and Treatment of Problem Structures: A Bruker Workshop on Single Crystal X-Ray Diffraction May 30, 2008 Chemistry Department University of Tennessee Knoxville, TN This meeting focuses on the scientific resources of four ORNL user facilities funded by the DOE Office of Basic Energy Sciences. Who Should Attend Synopsis Goals Scheduled Agenda Workshop Materials Confirmed Speakers Important Dates Registration - now open Location - Directions and Map Sponsors Organizing and Local Committee Contacts Relevant Literature, References, Websites Local Information Bruker - UT Workshop Who Should Attend? The Workshop is directed to the newcomer as well as the experienced user of a Bruker Apex / Apex-II system and SHELX software. It will concentrate on hard to solve and/or refine problem structures. We envision it to be

355

Analytical Division  

Science Conference Proceedings (OSTI)

Analytical Division Common (non-systematic) Names for Fatty Acids Analytical Division Analytical Chemistry Divisions Analytical Division Common (non-

356

X-ray Method Shows How Frog Embryos Could Help Thwart Disease  

NLE Websites -- All DOE Office Websites (Extended Search)

Nanocrystals Grow from Liquid Interface Nanocrystals Grow from Liquid Interface Eleventh Arthur H. Compton Award Announced Borland Awarded ACFA-IPAC'13 Prize for Accelerator Science President Obama at the Advanced Photon Source Von Dreele Receives Hanawalt Award APS News Archives: 2012 | 2011 | 2010 | 2009 2008 | 2007 | 2006 | 2005 2004 | 2003 | 2002 | 2001 2000 Subscribe to APS News rss feed X-ray Method Shows How Frog Embryos Could Help Thwart Disease MAY 20, 2013 Bookmark and Share X-ray phase-contrast tomography: Early frog embryo in cellular resolution (left) and cell and tissue motion captured and visualized using flow analysis (right). Image: Alexey Ershov/KIT From R&D Magazine online: An international team of scientists using a new X-ray method recorded the internal structure and cell movement inside a living frog embryo in greater

357

X-ray imaging, spacecraft nuclear fission and cosmic ray contraband  

NLE Websites -- All DOE Office Websites (Extended Search)

R&D 100 Awards winners R&D 100 Awards winners X-ray imaging, spacecraft nuclear fission and cosmic ray contraband detection score R&D 100 awards R&D Magazine announced the winners and three technologies from Los Alamos National Laboratory and its partners are among the honorees. July 8, 2013 MiniMAX is a battery powered, digital x-ray imaging system that is completely self-contained, lightweight, compact and portable. MiniMAX is a battery powered, digital x-ray imaging system that is completely self-contained, lightweight, compact and portable. Contact Nancy Ambrosiano Communications Office (505) 667-0471 Email "The innovation and creativity shown in this year's awards is truly inspiring. It gives me great confidence in the Laboratory's intellectual vitality and ongoing role in national security science. Congratulations to

358

X-ray chemistry in envelopes around young stellar objects  

E-Print Network (OSTI)

We present chemical models of the envelope of a young stellar object (YSO) exposed to a central X-ray source. The models are applied to the massive star-forming region AFGL 2591 for different X-ray fluxes. The total X-ray ionization rate is dominated by the `secondary' ionization rate of H2 resulting from fast electrons. The carbon, sulphur and nitrogen chemistries are discussed. It is found that He+ and H3+ are enhanced and trigger a peculiar chemistry. Several molecular X-ray tracers are found and compared to tracers of the far ultraviolet (FUV) field. Like ultraviolet radiation fields, X-rays enhance simple hydrides, ions and radicals. In contrast to ultraviolet photons, X-rays can penetrate deep into the envelope and affect the chemistry even at large distances from the source. Whereas the FUV enhanced species cover a region of 200-300 AU, the region enhanced by X-rays is >1000 AU. Best-fit models for AFGL 2591 predict an X-ray luminosity LX > 1e+31 ergs/s with a hard X-ray spectrum TX > 3e+07 K. Furthermore, we find LX/Lbol ~ 1e-6. The chemistry of the bulk of the envelope mass is dominated by cosmic-ray induced reactions rather than by X-ray induced ionization for X-ray luminosities LX < 1e+33 ergs/s. The calculated line intensities of HCO+ and HCS+ show that high-J lines are more affected than lower J lines by the presence of X-rays due to their higher critical densities, and that such differences are detectable even with large aperture single-dish telescopes. Future instruments such as Herschel-HIFI or SOFIA will be able to observe X-ray enhanced hydrides whereas the sensitivity and spatial resolution of ALMA is well-suited to measure the size and geometry of the region affected by X-rays.

P. Staeuber; S. D. Doty; E. F. van Dishoeck; A. O. Benz

2005-06-14T23:59:59.000Z

359

Lensless Imaging of Whole Biological Cells with Soft X-Rays  

NLE Websites -- All DOE Office Websites (Extended Search)

Lensless Imaging of Whole Biological Cells with Soft X-Rays Print Lensless Imaging of Whole Biological Cells with Soft X-Rays Print A team of scientists has used x-ray diffraction microscopy at ALS Beamline 9.0.1 to make images of whole yeast cells, achieving the highest resolution-11 to 13 nanometers (billionths of a meter)-ever obtained with this method for biological specimens. Their success indicates that full 3-D tomography of whole cells at equivalent resolution should soon be possible. The National Center for X-Ray Tomography at ALS Beamline 2.1 images whole, frozen hydrated cells in 3-D (see highlight "Imaging Antifungal Drug Molecules in Action using Soft X-Ray Tomography"). Large numbers of cells can currently be processed in a short time at resolutions of 40 to 60 nanometers, but the ability to increase resolution to the 10-nanometer range would enhance research capabilities in both biology and materials sciences.

360

Lensless Imaging of Whole Biological Cells with Soft X-Rays  

NLE Websites -- All DOE Office Websites (Extended Search)

Lensless Imaging of Whole Lensless Imaging of Whole Biological Cells with Soft X-Rays Lensless Imaging of Whole Biological Cells with Soft X-Rays Print Wednesday, 26 May 2010 00:00 A team of scientists has used x-ray diffraction microscopy at ALS Beamline 9.0.1 to make images of whole yeast cells, achieving the highest resolution-11 to 13 nanometers (billionths of a meter)-ever obtained with this method for biological specimens. Their success indicates that full 3-D tomography of whole cells at equivalent resolution should soon be possible. The National Center for X-Ray Tomography at ALS Beamline 2.1 images whole, frozen hydrated cells in 3-D (see highlight "Imaging Antifungal Drug Molecules in Action using Soft X-Ray Tomography"). Large numbers of cells can currently be processed in a short time at resolutions of 40 to 60 nanometers, but the ability to increase resolution to the 10-nanometer range would enhance research capabilities in both biology and materials sciences.

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Lensless Imaging of Whole Biological Cells with Soft X-Rays  

NLE Websites -- All DOE Office Websites (Extended Search)

Lensless Imaging of Whole Biological Cells with Soft X-Rays Print Lensless Imaging of Whole Biological Cells with Soft X-Rays Print A team of scientists has used x-ray diffraction microscopy at ALS Beamline 9.0.1 to make images of whole yeast cells, achieving the highest resolution-11 to 13 nanometers (billionths of a meter)-ever obtained with this method for biological specimens. Their success indicates that full 3-D tomography of whole cells at equivalent resolution should soon be possible. The National Center for X-Ray Tomography at ALS Beamline 2.1 images whole, frozen hydrated cells in 3-D (see highlight "Imaging Antifungal Drug Molecules in Action using Soft X-Ray Tomography"). Large numbers of cells can currently be processed in a short time at resolutions of 40 to 60 nanometers, but the ability to increase resolution to the 10-nanometer range would enhance research capabilities in both biology and materials sciences.

362

Lensless Imaging of Whole Biological Cells with Soft X-Rays  

NLE Websites -- All DOE Office Websites (Extended Search)

Lensless Imaging of Whole Biological Cells with Soft X-Rays Print Lensless Imaging of Whole Biological Cells with Soft X-Rays Print A team of scientists has used x-ray diffraction microscopy at ALS Beamline 9.0.1 to make images of whole yeast cells, achieving the highest resolution-11 to 13 nanometers (billionths of a meter)-ever obtained with this method for biological specimens. Their success indicates that full 3-D tomography of whole cells at equivalent resolution should soon be possible. The National Center for X-Ray Tomography at ALS Beamline 2.1 images whole, frozen hydrated cells in 3-D (see highlight "Imaging Antifungal Drug Molecules in Action using Soft X-Ray Tomography"). Large numbers of cells can currently be processed in a short time at resolutions of 40 to 60 nanometers, but the ability to increase resolution to the 10-nanometer range would enhance research capabilities in both biology and materials sciences.

363

Lensless Imaging of Whole Biological Cells with Soft X-Rays  

NLE Websites -- All DOE Office Websites (Extended Search)

Lensless Imaging of Whole Biological Cells with Soft X-Rays Print Lensless Imaging of Whole Biological Cells with Soft X-Rays Print A team of scientists has used x-ray diffraction microscopy at ALS Beamline 9.0.1 to make images of whole yeast cells, achieving the highest resolution-11 to 13 nanometers (billionths of a meter)-ever obtained with this method for biological specimens. Their success indicates that full 3-D tomography of whole cells at equivalent resolution should soon be possible. The National Center for X-Ray Tomography at ALS Beamline 2.1 images whole, frozen hydrated cells in 3-D (see highlight "Imaging Antifungal Drug Molecules in Action using Soft X-Ray Tomography"). Large numbers of cells can currently be processed in a short time at resolutions of 40 to 60 nanometers, but the ability to increase resolution to the 10-nanometer range would enhance research capabilities in both biology and materials sciences.

364

Lensless Imaging of Whole Biological Cells with Soft X-Rays  

NLE Websites -- All DOE Office Websites (Extended Search)

Lensless Imaging of Whole Biological Cells with Soft X-Rays Print Lensless Imaging of Whole Biological Cells with Soft X-Rays Print A team of scientists has used x-ray diffraction microscopy at ALS Beamline 9.0.1 to make images of whole yeast cells, achieving the highest resolution-11 to 13 nanometers (billionths of a meter)-ever obtained with this method for biological specimens. Their success indicates that full 3-D tomography of whole cells at equivalent resolution should soon be possible. The National Center for X-Ray Tomography at ALS Beamline 2.1 images whole, frozen hydrated cells in 3-D (see highlight "Imaging Antifungal Drug Molecules in Action using Soft X-Ray Tomography"). Large numbers of cells can currently be processed in a short time at resolutions of 40 to 60 nanometers, but the ability to increase resolution to the 10-nanometer range would enhance research capabilities in both biology and materials sciences.

365

Lensless Imaging of Whole Biological Cells with Soft X-Rays  

NLE Websites -- All DOE Office Websites (Extended Search)

Lensless Imaging of Whole Biological Cells with Soft X-Rays Print Lensless Imaging of Whole Biological Cells with Soft X-Rays Print A team of scientists has used x-ray diffraction microscopy at ALS Beamline 9.0.1 to make images of whole yeast cells, achieving the highest resolution-11 to 13 nanometers (billionths of a meter)-ever obtained with this method for biological specimens. Their success indicates that full 3-D tomography of whole cells at equivalent resolution should soon be possible. The National Center for X-Ray Tomography at ALS Beamline 2.1 images whole, frozen hydrated cells in 3-D (see highlight "Imaging Antifungal Drug Molecules in Action using Soft X-Ray Tomography"). Large numbers of cells can currently be processed in a short time at resolutions of 40 to 60 nanometers, but the ability to increase resolution to the 10-nanometer range would enhance research capabilities in both biology and materials sciences.

366

Lensless Imaging of Whole Biological Cells with Soft X-Rays  

NLE Websites -- All DOE Office Websites (Extended Search)

Lensless Imaging of Whole Biological Cells with Soft X-Rays Print Lensless Imaging of Whole Biological Cells with Soft X-Rays Print A team of scientists has used x-ray diffraction microscopy at ALS Beamline 9.0.1 to make images of whole yeast cells, achieving the highest resolution-11 to 13 nanometers (billionths of a meter)-ever obtained with this method for biological specimens. Their success indicates that full 3-D tomography of whole cells at equivalent resolution should soon be possible. The National Center for X-Ray Tomography at ALS Beamline 2.1 images whole, frozen hydrated cells in 3-D (see highlight "Imaging Antifungal Drug Molecules in Action using Soft X-Ray Tomography"). Large numbers of cells can currently be processed in a short time at resolutions of 40 to 60 nanometers, but the ability to increase resolution to the 10-nanometer range would enhance research capabilities in both biology and materials sciences.

367

Lensless Imaging of Whole Biological Cells with Soft X-Rays  

NLE Websites -- All DOE Office Websites (Extended Search)

Lensless Imaging of Whole Biological Cells with Soft X-Rays Print Lensless Imaging of Whole Biological Cells with Soft X-Rays Print A team of scientists has used x-ray diffraction microscopy at ALS Beamline 9.0.1 to make images of whole yeast cells, achieving the highest resolution-11 to 13 nanometers (billionths of a meter)-ever obtained with this method for biological specimens. Their success indicates that full 3-D tomography of whole cells at equivalent resolution should soon be possible. The National Center for X-Ray Tomography at ALS Beamline 2.1 images whole, frozen hydrated cells in 3-D (see highlight "Imaging Antifungal Drug Molecules in Action using Soft X-Ray Tomography"). Large numbers of cells can currently be processed in a short time at resolutions of 40 to 60 nanometers, but the ability to increase resolution to the 10-nanometer range would enhance research capabilities in both biology and materials sciences.

368

National School on Neutron and X-Ray Scattering Held at APS&IPNS  

NLE Websites -- All DOE Office Websites (Extended Search)

Science and Chemistry Divisions but also from several Collaborative Access Teams (CATS) and the Spallation Neutron Source generously provided their time and expertise. We are...

369

Imaging of lateral spin valves with soft x-ray microscopy  

E-Print Network (OSTI)

J. E. Pearson c Materials Science Division, Argonne NationalLaboratory, Argonne, Illinois 60439, USA P. Fischer and M. -Nanoscale Materials, Argonne National Laboratory, Argonne,

Mosendz, O.

2010-01-01T23:59:59.000Z

370

Argonne's Fenter Wins Warren Award for X-ray Diffraction Studies  

NLE Websites -- All DOE Office Websites (Extended Search)

in the Chemical Sciences and Engineering Division at the U.S. Department of Energy's Argonne National Laboratory, has been named the next recipient of the American...

371

Proton induced quasi-monochromatic x-ray beams for soft x-ray spectroscopy studies and selective x-ray fluorescence analysis  

Science Conference Proceedings (OSTI)

We present the analytical features and performance of an x-ray spectroscopy end station of moderate energy resolution operating with proton-induced quasi-monochromatic x-ray beams. The apparatus was designed, installed and operated at the 5.5 MV Tandem VdG Accelerator Laboratory of the Institute of Nuclear Physics, N.C.S.R. 'Demokritos,' Athens. The setup includes a two-level ultrahigh vacuum chamber that hosts in the lower level up to six primary targets in a rotatable holder; there, the irradiation of pure element materials-used as primary targets-with few-MeV high current ({approx}{mu}A) proton beams produces intense quasi-monochromatic x-ray beams of selectable energy. In the chamber's upper level, a six-position rotatable sample holder hosts the targets considered for x-ray spectroscopy studies. The proton-induced x-ray beam, after proper collimation, is guided to the sample position whereas various filters can be also inserted along the beam's path to eliminate the backscattered protons or/and to absorb selectively components of the x-ray beam. The apparatus incorporates an ultrathin window Si(Li) spectrometer (FWHM 136 eV at 5.89 keV) coupled with low-noise electronics capable of efficiently detecting photons down to carbon K{alpha}. Exemplary soft x-ray spectroscopy studies and results of selective x-ray fluorescence analysis are presented.

Sokaras, D. [Institute of Nuclear Physics, N.C.S.R. Demokritos, Aghia Paraskevi, 15310 Athens (Greece); Zarkadas, Ch. [PANalytical B.V., 7600 AA Almelo (Netherlands); Fliegauf, R.; Beckhoff, B. [Physikalisch-Technische Bundesanstalt, Abbestrasse 2-12, 10587 Berlin (Germany); Karydas, A. G. [Institute of Nuclear Physics, N.C.S.R. Demokritos, Aghia Paraskevi, 15310 Athens (Greece); Nuclear Spectrometry and Applications Laboratory, IAEA Laboratories, A-2444 Seibersdorf (Austria)

2012-12-15T23:59:59.000Z

372

Advances in materials science, metals and ceramics division. Triannual progress report, June-September 1980  

Science Conference Proceedings (OSTI)

Information is presented concerning the magnetic fusion energy program; the laser fusion energy program; geothermal research; nuclear waste management; Office of Basic Energy Sciences (OBES) research; diffusion in silicate minerals; chemistry research resources; and chemistry and materials science research.

Truhan, J.J.; Hopper, R.W.; Gordon, K.M. (eds.)

1980-10-28T23:59:59.000Z

373

Advances in materials science, Metals and Ceramics Division. Triannual progress report, February-May 1980  

SciTech Connect

Research is reported in the magnetic fusion energy and laser fusion energy programs, aluminium-air battery and vehicle research, geothermal research, nuclear waste management, basic energy science, and chemistry and materials science. (FS)

Truhan, J.J.; Gordon, K.M. (eds.)

1980-08-01T23:59:59.000Z

374

Gray scale x-ray mask  

DOE Patents (OSTI)

The present invention describes a method for fabricating an embossing tool or an x-ray mask tool, providing microstructures that smoothly vary in height from point-to-point in etched substrates, i.e., structure which can vary in all three dimensions. The process uses a lithographic technique to transfer an image pattern in the surface of a silicon wafer by exposing and developing the resist and then etching the silicon substrate. Importantly, the photoresist is variably exposed so that when developed some of the resist layer remains. The remaining undeveloped resist acts as an etchant barrier to the reactive plasma used to etch the silicon substrate and therefore provides the ability etch structures of variable depths.

Morales, Alfredo M. (Livermore, CA); Gonzales, Marcela (Seattle, WA)

2006-03-07T23:59:59.000Z

375

In R&D, Super X-rays Mark Many Spots  

NLE Websites -- All DOE Office Websites (Extended Search)

A New Gas Loading System for Diamond Anvil Cells at GSECARS A New Gas Loading System for Diamond Anvil Cells at GSECARS Sidorowicz Named "Supervisor of the Year" SESS 2007: The School for Environmental Sciences with Synchrotrons Art and Science A Breakthrough in Interface Science APS News Archives: 2012 | 2011 | 2010 | 2009 2008 | 2007 | 2006 | 2005 2004 | 2003 | 2002 | 2001 2000 Subscribe to APS News rss feed In R&D, Super X-rays Mark Many Spots MARCH 11, 2008 Bookmark and Share Research and Design Magazine "The Advanced Photon Source (APS) at the U.S. Dept. of Energy's Argonne National Laboratory has been kept busy of late." That's the first sentence of R&D Magazine's recent overview of research results from the APS. The article highlights "a new ultrafast synchrotron x-ray full-field phase contrast imaging technique and used it to reveal

376

X-Ray Diffraction (XRD) | Open Energy Information  

Open Energy Info (EERE)

X-Ray Diffraction (XRD) X-Ray Diffraction (XRD) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: X-Ray Diffraction (XRD) Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Lab Analysis Techniques Exploration Sub Group: Rock Lab Analysis Parent Exploration Technique: Rock Lab Analysis Information Provided by Technique Lithology: Rapid and unambiguous identification of unknown minerals.[1] Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png X-Ray Diffraction (XRD): X-Ray Diffraction (XRD) is a laboratory-based technique commonly used for identification of crystalline materials and analysis of unit cell dimensions. One of two primary types of XRD analysis (X-ray powder diffraction and single-crystal XRD) is commonly applied to samples to

377

X-Ray Fluorescence (XRF) | Open Energy Information  

Open Energy Info (EERE)

X-Ray Fluorescence (XRF) X-Ray Fluorescence (XRF) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: X-Ray Fluorescence (XRF) Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Lab Analysis Techniques Exploration Sub Group: Rock Lab Analysis Parent Exploration Technique: Rock Lab Analysis Information Provided by Technique Lithology: Bulk and trace element analysis of rocks, minerals, and sediments. Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png X-Ray Fluorescence (XRF): X-Ray Fluorescence is a lab-based technique used for bulk chemical analysis of rock, mineral, sediment, and fluid samples. The technique depends on the fundamental principles of x-ray interactions with solid materials, similar

378

APS 7-BM Beamline: X-Ray Resources  

NLE Websites -- All DOE Office Websites (Extended Search)

Useful Websites Useful Websites X-Ray Interactions with Matter from CRXO at LBNL. Intuitive interface for x-ray transmission and reflectivity for a wide range of materials. X-Ray Data Booklet from LBNL. Slightly outdated in places, but many useful tables of edge energies, fluorescence lines, and crystal lattice spacings. NIST XCOM Database. Powerful database of photoelectric absorption, elastic scattering, and Compton scattering cross-sections for a wide range of materials. X-Ray Server. Maintained by Sergey Stepanov at GMCA at the APS, this website has several powerful calculators for simulating x-ray reflection and diffraction. Software X-Ray Oriented Programs (XOP). This program, written by scientists at the ESRF and APS, is widely used in the synchrotron research community.

379

Density gradient free electron collisionally excited x-ray laser  

DOE Patents (OSTI)

An operational x-ray laser is provided that amplifies 3p-3s transition x-ray radiation along an approximately linear path. The x-ray laser is driven by a high power optical laser. The driving line focused optical laser beam illuminates a free-standing thin foil that may be associated with a substrate for improved structural integrity. This illumination produces a generally cylindrically shaped plasma having an essentially uniform electron density and temperature, that exists over a long period of time, and provides the x-ray laser gain medium. The x-ray laser may be driven by more than one optical laser beam. The x-ray laser has been successfully demonstrated to function in a series of experimental tests.

Campbell, E.M.; Rosen, M.D.

1984-11-29T23:59:59.000Z

380

Portable X-Ray Diffraction (XRD) | Open Energy Information  

Open Energy Info (EERE)

Portable X-Ray Diffraction (XRD) Portable X-Ray Diffraction (XRD) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Portable X-Ray Diffraction (XRD) Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Data Collection and Mapping Parent Exploration Technique: Data Collection and Mapping Information Provided by Technique Lithology: Rapid and unambiguous identification of unknown minerals.[1] Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Portable X-Ray Diffraction (XRD): Portable X-Ray Diffraction (XRD) is a field-based technique that can be used for identification of crystalline materials and analysis of unit cell dimensions. Portable XRD analysis is similar to X-ray powder diffraction,

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Multilayers for next generation x-ray sources  

Science Conference Proceedings (OSTI)

Multilayers are artificially layered structures that can be used to create optics and optical elements for a broad range of x-ray wavelengths, or can be optimized for other applications. The development of next generation x-ray sources (synchrotrons and x-ray free electron lasers) requires advances in x-ray optics. Newly developed multilayer-based mirrors and optical elements enabled efficient band-pass filtering, focusing and time resolved measurements in recent FLASH (Free Electron LASer in Hamburg) experiments. These experiments are providing invaluable feedback on the response of the multilayer structures to high intensity, short pulsed x-ray sources. This information is crucial to design optics for future x-ray free electron lasers and to benchmark computer codes that simulate damage processes.

Bajt, S; Chapman, H N; Spiller, E; Hau-Riege, S; Alameda, J; Nelson, A J; Walton, C C; Kjornrattanawanich, B; Aquila, A; Dollar, F; Gullikson, E; Tarrio, C

2007-05-04T23:59:59.000Z

382

Optimization for Single-Spike X-Ray FELs at LCLS with a Low Charge Beam  

Science Conference Proceedings (OSTI)

The Linac Coherent Light Source is an x-ray free-electron laser at the SLAC National Accelerator Laboratory, which is operating at x-ray wavelengths of 20-1.2 Angstrom with peak brightness nearly ten orders of magnitude beyond conventional synchrotron radiation sources. At the low charge operation mode (20 pC), the x-ray pulse length can be LCLS), the world's first hard x-ray Free electron laser (FEL), has started operation since 2009. With nominal operation charge of 250 pC, the generated x-ray pulse length is from 70 fs to a few hundred fs. This marks the beginning of a new era of ultrashort x-ray sciences. In addition, a low charge (20pC) operation mode has also been established. Since the collective effects are reduced at the low charge mode, we can increase the compression factor and still achieve a few kA peak current. The expected electron beam and x-ray pulses are less than 10 fs. There are growing interests in even shorter x-ray pulses, such as fs to sub-fs regime. One of the simple solutions is going to even lower charge. As discussed, single-spike x-ray pulses can be generated using 1 pC charge. However, this charge level is out of the present LCLS diagnostic range. 20 pC is a reasonable operation charge at LCLS, based on the present diagnostic system. At 20 pC in the soft x-ray wavelength regime, we have experimentally demonstrated that FEL can work at undercompression or over-compression mode, such as 1 degree off the full-compression; at full-compression, however, there is almost no lasing. In hard x-ray wavelength regime, we observed that there are reasonable photons generated even at full-compression mode, although the photon number is less than that from under-compression or over-compression mode. Since we cannot measure the x-ray pulse length at this time scale, the machine is typically optimized for generating maximum photons, not minimum pulse length. In this paper, we study the methods of producing femtosecond (or single-spike) x-ray pulses at LCLS with 20 pC charge, based on start-to-end simulations. Figure 1 shows a layout of LCLS. The compression in the second bunch compressor (BC2) determines the final e-beam bunch length. However, the laser heater, dog-leg after the main linac (DL2) and collective effects also affect the final bunch length. To adjust BC2 compression, we can either change the L2 phase or BC2 R{sub 56}. In this paper we only tune L2 phase while keep BC2 R{sub 56} fixed. For the start-to-end simulations, we used IMPACT-T and ELEGANT tracking from the photocathode to the entrance of the undulator, after that the FEL radiation was simulated with GENESIS. IMPACT-T tracks about 10{sup 6} particles in the injector part until 135 MeV, including 3D space charge force. The output particles from IMPACT-T are smoothed and increased to 12 x 10{sup 6} to reduce high-frequency numerical noise for subsequent ELEGANT simulations, which include linear and nonlinear transport effects, a 1D transient model of CSR, and longitudinal space charge effects, as well as geometric and resistive wake fields in the accelerator. In GENESIS part, the longitudinal wake field from undulator chamber and longitudinal space field are also included.

Wang, L.; Ding, Y.; Huang, Z.; /SLAC

2011-12-14T23:59:59.000Z

383

NIST X-Ray Mass Attenuation Coefficients - Version History  

Science Conference Proceedings (OSTI)

... year, month day with database access date.) Hubbell, JH and Seltzer, SM (2004), Tables of X-Ray Mass Attenuation Coefficients and Mass Energy- ...

2010-10-05T23:59:59.000Z

384

Optical and X-ray Imaging Techniques for Material Characterization ...  

Science Conference Proceedings (OSTI)

Ultrafast X-ray and 2-dimensional UV Spectroscopy of TiO2 Nanoparticles: Majed Chergui1; 1Ecole Polytechnique Fédérale de Lausanne Mesoporous titanium ...

385

X-Ray and Neutron Diffraction - Programmaster.org  

Science Conference Proceedings (OSTI)

Oct 20, 2010 ... Strain Determination in Nanoscale Microelectronic Materials Using X-Ray Diffraction: Conal Murray1; 1IBM T.J. Watson Research Center

386

High Temperature X-ray Diffraction Characterization of Thermal ...  

Science Conference Proceedings (OSTI)

Application of Conical Beam X-Ray Tomography to Multi-Phase Materials ... Digital Construction and Characterization of Reticulated Porous Microstructures ...

387

dosimetry of x-rays, gamma rays and electrons  

Science Conference Proceedings (OSTI)

... NIST and BIPM Standards for Air Kerma in Medium-Energy X-rays ... of the codes are available from the Government Printing Office, Washington, DC ...

2013-06-28T23:59:59.000Z

388

Neutron and X-ray Scattering Investigations of Microscopic Energy ...  

Science Conference Proceedings (OSTI)

A Case Study in Future Energy Challenges: Towards In Situ Hard X-ray Microscopy of ... of Crystal Structure and Domain Character in Lead Free Piezoceramics.

389

APS X-ray Optics Fabrication and Characterization Facility  

SciTech Connect

The APS is in the process of assembling an X-ray Optics Fabrication and characterization Facility. This report will describe its current (as of February 1993) design.

Davey, S.

1993-02-01T23:59:59.000Z

390

X-ray compass for determining device orientation  

DOE Patents (OSTI)

An apparatus and method for determining the orientation of a device with respect to an x-ray source are disclosed. In one embodiment, the present invention is coupled to a medical device in order to determine the rotational orientation of the medical device with respect to the x-ray source. In such an embodiment, the present invention is comprised of a scintillator portion which is adapted to emit photons upon the absorption of x-rays emitted from the x-ray source. An x-ray blocking portion is coupled to the scintillator portion. The x-ray blocking portion is disposed so as to vary the quantity of x-rays which penetrate the scintillator portion based upon the particular rotational orientation of the medical device with respect to the x-ray source. A photon transport mechanism is also coupled to the scintillator portion. The photon transport mechanism is adapted to pass the photons emitted from the scintillator portion to an electronics portion. By analyzing the quantity of the photons, the electronics portion determines the rotational orientation of the medical device with respect to the x-ray source. 25 figs.

Da Silva, L.B.; Matthews, D.L.; Fitch, J.P.; Everett, M.J.; Colston, B.W.; Stone, G.F.

1999-06-15T23:59:59.000Z

391

Synchrotron X-ray Studies of Supercritical Carbon Dioxide/ Reservoir...  

Open Energy Info (EERE)

Edit with form History Facebook icon Twitter icon Synchrotron X-ray Studies of Supercritical Carbon Dioxide Reservoir Rock Interfaces Geothermal Lab Call Project Jump to:...

392

Phase Sensitive X-ray Imager for More Accurate Digital ...  

Livermore Lab Report. News Archive. News ... use of higher energy X-rays which would result in a lower amount of absorbed radiation to the ... testing ...

393

X-Ray Scattering Group, Condensed Matter Physics & Materials...  

NLE Websites -- All DOE Office Websites (Extended Search)

Proceedings of the 12th International Clay Conference, Bahia Blanca, Argentina, July 22-28, 2001. Gibbs, D. X-ray magnetic scattering. Synchrotron Radiation News...

394

Neutron and X-Ray Studies of Advanced Materials IV  

Science Conference Proceedings (OSTI)

We propose to organize a seven-session Symposium on Neutron and X-Ray ... the advent of new powerful neutron sources such as the Spallation Neutron ...

395

Available Technologies: High Temperature Strain Cell for X-ray ...  

High Temperature Strain Cell for X-ray ... Six hexapole infrared lamps focus inside the sample chamber onto a ceramic material sample with a spherical ...

396

X-ray compass for determining device orientation  

DOE Patents (OSTI)

An apparatus and method for determining the orientation of a device with respect to an x-ray source. In one embodiment, the present invention is coupled to a medical device in order to determine the rotational orientation of the medical device with respect to the x-ray source. In such an embodiment, the present invention is comprised of a scintillator portion which is adapted to emit photons upon the absorption of x-rays emitted from the x-ray source. An x-ray blocking portion is coupled to the scintillator portion. The x-ray blocking portion is disposed so as to vary the quantity of x-rays which penetrate the scintillator portion based upon the particular rotational orientation of the medical device with respect to the x-ray source. A photon transport mechanism is also coupled to the scintillator portion. The photon transport mechanism is adapted to pass the photons emitted from the scintillator portion to an electronics portion. By analyzing the quantity of the photons, the electronics portion determines the rotational orientation of the medical device with respect to the x-ray source.

Da Silva, Luiz B. (Danville, CA); Matthews, Dennis L. (Moss Beach, CA); Fitch, Joseph P. (Livermore, CA); Everett, Matthew J. (Pleasanton, CA); Colston, Billy W. (Livermore, CA); Stone, Gary F. (Livermore, CA)

1999-01-01T23:59:59.000Z

397

Inelastic X-ray Scattering Reveals Microscopic Transport Properties...  

NLE Websites -- All DOE Office Websites (Extended Search)

Inelastic X-ray Scattering Reveals Microscopic Transport Properties of Molten Aluminum Oxide The transport properties of high-temperature oxide melts are of considerable interest...

398

SLAC National Accelerator Laboratory - X-ray Laser Pulses in...  

NLE Websites -- All DOE Office Websites (Extended Search)

SLAC researchers have demonstrated for the first time how to produce pairs of X-ray laser pulses in slightly different wavelengths, or colors, with finely adjustable intervals...

399

NIST X-Ray Transition Energies Version History  

Science Conference Proceedings (OSTI)

... Jr., P. Indelicato, L. de Billy, E. Lindroth, and J. Anton, "X-ray transition energies: new approach to a ... [Type of medium] Available: URL [Access date]. ...

2010-10-05T23:59:59.000Z

400

Particle Accelerator & X-Ray Optics | Argonne National Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

Hard X-Ray Quad Collimator Facilitates Microcrystallography Experiments Isotopic Abundance in Atom Trap Trace Analysis Nanomaterials Analysis using a Scanning Electron Microscope...

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

X RAY TU E WITH MAGNETI ELE TRON STEERING  

Sandia National Laboratories has created an improved efficiency compact X-ray source to address a wide range ... escape the anode and cause electron h ...

402

Temporal multiplexing radiography for dynamic x-ray imaging  

Science Conference Proceedings (OSTI)

All current x-ray imaging devices acquire images sequentially, one at a time. Using a spatially distributed multibeam x-ray source we recently demonstrated the feasibility for multiplexing x-ray imaging, which can significantly increase the data collection speed. Here we present a general methodology for dynamic x-ray imaging of an object in cyclic motion with temporal multiplexing. Compared to the conventional sequential imaging technique, where 2N-1 phase images are required and N exposures are needed for a single phase image, a temporal multiplexing of dimension 2N-1 can reduce the imaging time by a factor of N while maintaining the temporal resolution.

Cao Guohua [Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Zhang Jian [Department of Radiation Oncology and Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 (United States); Zhou, Otto; Lu Jianping [Department of Physics and Astronomy and Curriculum in Applied Sciences and Engineering, University of North Carolina, Chapel Hill, North Carolina, 27599 (United States)

2009-09-15T23:59:59.000Z

403

Refractive Optics for Hard X-ray Transmission Microscopy  

Science Conference Proceedings (OSTI)

For hard x-ray transmission microscopy at photon energies higher than 15 keV we design refractive condenser and imaging elements to be used with synchrotron light sources as well as with x-ray tube sources. The condenser lenses are optimized for low x-ray attenuation--resulting in apertures greater than 1 mm--and homogeneous intensity distribution on the detector plane, whereas the imaging enables high-resolution (condenser and imaging lenses are being developed. The imaging lenses (compound refractive lenses, CRLs) are made of SU-8 negative resist by deep x-ray lithography. SU-8 shows high radiation stability. The fabrication technique enables high-quality lens structures regarding surface roughness and arrangement precision with arbitrary 2D geometry. To provide point foci, crossed pairs of lenses are used. Condenser lenses have been made utilizing deep x-ray lithographic patterning of thick SU-8 layers, too, whereas in this case, the aperture is limited due to process restrictions. Thus, in terms of large apertures, condenser lenses made of structured and rolled polyimide film are more attractive. Both condenser types, x-ray mosaic lenses and rolled x-ray prism lenses (RXPLs), are considered to be implemented into a microscope setup. The x-ray optical elements mentioned above are characterized with synchrotron radiation and x-ray laboratory sources, respectively.

Simon, M.; Last, A.; Mohr, J.; Nazmov, V.; Reznikova, E. [Institute for Microstructure Technology, Karlsruhe Institute of Technology Kaiserstrasse 12, 76131 Karlsruhe (Germany); Ahrens, G.; Voigt, A. [Microresist Technology, Koepenikerstrasse 325, 12555 Berlin (Germany)

2011-09-09T23:59:59.000Z

404

New Directions in X-ray Scattering - SSRL  

NLE Websites -- All DOE Office Websites (Extended Search)

associated with chemically and radioactively contaminated ground-water. Ability to probe weak scattering from single crystals as function of energy (resonance) and x-ray...

405

Bibliography of NRL Works on X-Ray Fluorescence Authored ...  

Science Conference Proceedings (OSTI)

... LS Birks, and EJ Brooks, "Grain-Boundary Diffusion of Zinc in Copper ... 111 J. Gilfrich, "X-Ray Diffraction Studies on the Titanium-Nickel System," in ...

2012-10-05T23:59:59.000Z

406

In situ X-ray Characterization of Energy Storage Materials |...  

NLE Websites -- All DOE Office Websites (Extended Search)

to accurately characterize the dynamic electrochemical processes at the nanometer and atomic level, we have employed a set of complementary, in situ X-ray characterization...

407

Improved Treatment of X-ray Resistant & Inoperable Cancers ...  

If the electron beam can be transported to the internal cancer without exposure to tissue, ... This figure shows a comparison of X-ray radiation ...

408

Spatially-Resolved X-Ray Microdiffraction Studies Inside Individual ...  

Science Conference Proceedings (OSTI)

This talk will describe recent advances including increased scanning speed, and will describe the use of this x-ray microscope to study mesoscale structural ...

409

Development of Coherent X-Ray Diffraction Microscopy and Its ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2010 TMS Annual Meeting & Exhibition. Symposium , Neutron and X-Ray Studies of Advanced Materials III. Presentation Title, 2010 ...

410

Background X-ray Spectrum of Radioactive Samples  

Science Conference Proceedings (OSTI)

An energy-dispersive X-ray spectrometer (EDS) is commonly used with a scanning electron microscope (SEM) to analyze the elemental compositions and microstructures of a variety of samples. For example, the microstructures of nuclear fuels are commonly investigated with this technique. However, the radioactivity of some materials introduces additional X-rays that contribute to the EDS background spectrum. These X-rays are generally not accounted for in spectral analysis software, and can cause misleading results. X-rays from internal conversion [1], Bremsstrahlung [2] radiation associated with alpha ionizations and beta particle interactions [3], and gamma rays from radioactive decay can all elevate the background of radioactive materials.

Shannon Yee; Dawn E. Janney

2008-02-01T23:59:59.000Z

411

Grain Boundary Deformation Analyzed Via X-Ray Diffraction ...  

Science Conference Proceedings (OSTI)

Modeling the Influence of the Second Phase Particle Spatial Distribution on Recrystallization of AA 7050 · Near-Field High Energy X-ray Diffraction Microscopy ...

412

Applications of High Resolution X-ray Computed Tomography in ...  

Science Conference Proceedings (OSTI)

... data, including concentration profiles from x-ray absorption measurements during ... Dynamic Evolution of Liquid-liquid Phase Separation While Cooling in a

413

Determining the Uncertainty of X-Ray Absorption ...  

Science Conference Proceedings (OSTI)

... The apparatus uses a tungsten filament and a tungsten target to generate x rays and the detector contains a CZT crystal. ...

2005-01-28T23:59:59.000Z

414

X-ray Detection with Large Area Avalanche Photodiodes for ...  

Science Conference Proceedings (OSTI)

... The primary photon detector was a 12-element ... The overall energy range for the experiment was ... to directly detect X-rays with energies between 0.3 ...

2013-07-23T23:59:59.000Z

415

Spectrometry of X-Ray Beams Used for Calibrations  

Science Conference Proceedings (OSTI)

... and used to calibrate a wavelength-dispersive crystal x-ray spectrograph used by Lawrence Livermore National Laboratory (LLNL) to diagnose ...

2012-06-26T23:59:59.000Z

416

X-ray Tube with Magnetic Electron Steering - Energy ...  

The high average power large area X-ray tube provides ... Solar Photovoltaic; Solar ... Description This invention consists of a cathode and anode ...

417

Dr Peter L Lee | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Peter L Lee Peter L Lee Scientific User Facilities (SUF) Division SUF Home About Staff Listings/Contact Information What's New User Facilities Accelerator & Detector Research & Development Principal Investigators' Meetings Scientific Highlights Construction Projects BES Home Staff Listings/Contact Information Dr. Peter L Lee Print Text Size: A A A RSS Feeds FeedbackShare Page Dr. Peter L. Lee Program Manager X-ray and Neutron Scattering Facilities Office of Basic Energy Sciences SC-22.3/Germantown Building U.S. Department of Energy 1000 Independence Avenue, SW Washington, D.C. 20585-1290 E-Mail: Peter.Lee@science.doe.gov Phone: (301) 903-8484 Fax: (301) 903-1690 Dr. Lee joined the Scientific User Facilities Division of DOE's Office of Basic Energy Sciences in January 2010 as the program manager for X-ray and

418

Angular Correlations of the X-Ray Background and Clustering of Extragalactic X-Ray Sources  

E-Print Network (OSTI)

The information content of the autocorrelation function (ACF) of intensity fluctuations of the X-ray background (XRB) is analyzed. The tight upper limits set by ROSAT deep survey data on the ACF at arcmin scales imply strong constraints on clustering properties of X-ray sources at cosmological distances and on their contribution to the soft XRB. If quasars have a clustering radius r_0=12-20 Mpc (H_0=50), and their two point correlation function, is constant in comoving coordinates as indicated by optical data, they cannot make up more 40-50% of the soft XRB (the maximum contribution may reach 80% in the case of stable clustering, epsilon=0). Active Star-forming (ASF) galaxies clustered like normal galaxies, with r_0=10-12 Mpc can yield up to 20% or up to 40% of the soft XRB for epsilon=-1.2 or epsilon=0, respectively. The ACF on degree scales essentially reflects the clustering properties of local sources and is proportional to their volume emissivity. The upper limits on scales of a few degrees imply that hard X-ray selected AGNs have r_06 deg, if real, may be due to AGNs with r_0=20 Mpc; the contribution from clusters of galaxies with r_0~50 Mpc is a factor 2 lower.

L. Danese; L. Toffolatti; A. Franceschini; J. M. Martin-Mirones; G. De Zotti

1993-02-24T23:59:59.000Z

419

X-ray Methods in High-Intensity Discharges and Metal-Halide Lamps: X-ray Induced Fluorescence  

SciTech Connect

We describe the use of x-ray induced fluorescence to study metal-halide high-intensity discharge lamps and to measure equilibrium vapor pressures of metal-halide salts. The physical principles of metal-halide lamps, relevant aspects of x-ray-atom interactions, the experimental method using synchrotron radiation, and x-ray induced fluorescence measurements relevant to metal-halide lamps are covered.

Curry, John J.; Lapatovich, Walter P.; Henins, Albert (NIST)

2011-12-09T23:59:59.000Z

420

PHYSICS, COMPUTER SCIENCE AND MATHEMATICS DIVISION. ANNUAL REPORT. 1 JANUARY - 31 DECEMBER 1979  

E-Print Network (OSTI)

Johnston, and N. Johnston. Computer Graphics 13. 2 (SIGGRAPHS. Colonias. 1979 UCRL-52824. Computer Science and Applied1979. LBL-9504. Synch-A Computer System for Synchrotron

Lepore Editor, J.V.

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Los Alamos Lab: Bioscience Division: Capabilities  

NLE Websites -- All DOE Office Websites (Extended Search)

Division Capabilities Biomaterials Cell Biology Computational Biology Environmental Microbiology Genomic Science Measurement Science and Diagnostics Metabolomics Molecular...

422

Structure-Function Analysis of Edible FatsChapter 3 Powder X-ray Diffraction of Triglycerides in the Study of Polymorphism  

Science Conference Proceedings (OSTI)

Structure-Function Analysis of Edible Fats Chapter 3 Powder X-ray Diffraction of Triglycerides in the Study of Polymorphism Methods and Analyses eChapters Food Science & Technology Health - Nutrition - Biochemistry Processing Methods - An

423

MARGARET S. TORN Earth Sciences Division, MS 90-1116 Tel: (510) 495-2223  

E-Print Network (OSTI)

, 1984 Professional Positions Program Head, Climate and Carbon Sciences, Lawrence Berkeley National Lab and carbon cycling to nitrogen additions and warming in two tropical soils. Global Change Biology, published grassland. Journal of Vegetation Science 20: 860­870. Still, C.J., Riley, W.J., Biraud, S.C., Noone, D

Kammen, Daniel M.

424

X-ray spectral states of microquasars  

E-Print Network (OSTI)

We discuss the origin of the dramatically different X-ray spectral shapes observed in the Low Hard State (LHS: dominated by thermal comptonisation) and the High Soft State (HSS: dominated by the accretion disc thermal emission and non-thermal comptonisation in the corona). We present numerical simulations using a new code accounting for the so-called synchrotron boiler effect. These numerical simulations when compared to the data allow us to constrain the magnetic field and temperature of the hot protons in the corona. For the hard state of Cygnus X-1 we find a magnetic field below equipartition with radiation, suggesting that the corona is not powered through magnetic field dissipation (as assumed in most accretion disc corona models). On the other hand, our results also point toward proton temperatures that are substantially lower than typical temperatures of the ADAF models. Finally, we show that in both spectral states Comptonising plasma could be powered essentially through power-law acceleration of non-thermal electrons, which are then partly thermalised by the synchrotron and Coulomb boiler. This suggests that, contrary to current beliefs, the corona of the HSS and that of the LHS could be of very similar nature. The differences between the LHS and HSS coronal spectra would then be predominantly caused by the strong disc soft cooling emission which is present in the HSS and absent in the LHS.

Julien Malzac; Renaud Belmont

2008-10-25T23:59:59.000Z

425

Air Handler Condensate Recovery at the Environmental Protection Agency’s Science and Ecosystem Support Division: Best Management Practice Case Study #14: Alternate Water Sources, Federal Energy Management Program (FEMP) (Fact Sheet)  

Energy.gov (U.S. Department of Energy (DOE))

FEMP Water Efficiency Best Management Practice #14 Case Study: Overview of the air handler condensate recovery program at the Environmental Protection Agency's Science and Ecosystem Support Division.

426

X-ray attenuation properties of stainless steel (u)  

SciTech Connect

Stainless steel vessels are used to enclose solid materials for studying x-ray radiolysis that involves gas release from the materials. Commercially available stainless steel components are easily adapted to form a static or a dynamic condition to monitor the gas evolved from the solid materials during and after the x-ray irradiation. Experimental data published on the x-ray attenuation properties of stainless steel, however, are very scarce, especially over a wide range of x-ray energies. The objective of this work was to obtain experimental data that will be used to determine how a poly-energetic x-ray beam is attenuated by the stainless steel container wall. The data will also be used in conjunction with MCNP (Monte Carlos Nuclear Particle) modeling to develop an accurate method for determining energy absorbed in known solid samples contained in stainless steel vessels. In this study, experiments to measure the attenuation properties of stainless steel were performed for a range of bremsstrahlung x-ray beams with a maximum energy ranging from 150 keV to 10 MeV. Bremsstrahlung x-ray beams of these energies are commonly used in radiography of engineering and weapon components. The weapon surveillance community has a great interest in understanding how the x-rays in radiography affect short-term and long-term properties of weapon materials.

Wang, Lily L [Los Alamos National Laboratory; Berry, Phillip C [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

427

Hard X-ray Phase Contrast -Techniques and Applications -  

E-Print Network (OSTI)

Hard X-ray Phase Contrast Microscopy - Techniques and Applications - A Dissertation Presented of the Graduate School ii #12;Abstract of the Dissertation Hard X-ray Phase Contrast Microscopy - Techniques . . . . . . . . . . . . . . . . . . 58 3.2.4 Reconstruction Example for Integration Method . . . . 59 3.2.5 The Imaginary Part

428

High-energy x-ray production with pyroelectric crystals  

Science Conference Proceedings (OSTI)

The invention of pyroelectric x-ray generator technology has enabled researchers to develop ultraportable, low-power x-ray sources for use in imaging, materials analysis, and other applications. For many applications, the usefulness of an x-ray source is determined by its yield and endpoint energy. In x-ray fluorescence, for example, high-energy sources enable the excitation of the K-shell x-ray peaks for high-Z materials as well as the lower-energy L-shell peaks, allowing more positive sample identification. This report shows how a paired-crystal pyroelectric source can be used to approximately double the endpoint x-ray energy, in addition to doubling the x-ray yield, versus a single-crystal source. As an example of the advantage of a paired-crystal system, we present a spectrum showing the fluorescence of the K shell of thorium using a pyroelectric source, as well as a spectrum showing the fluorescence of the K shell of lead. Also shown is an x-ray spectrum with an endpoint energy of 215 keV.

Geuther, Jeffrey A.; Danon, Yaron [Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States)

2005-05-15T23:59:59.000Z

429

ESRF HIGHLIGHTS 2005 X-RAY ABSORPTION AND MAGNETIC SCATTERING  

E-Print Network (OSTI)

96 ESRF HIGHLIGHTS 2005 X-RAY ABSORPTION AND MAGNETIC SCATTERING References [1] C. Antoniak, J to original phenomena. These effects are observed in charge-density wave (CDW) materials. Upon cooling of the screw like dislocation shown in Figure 121b. #12;97 HIGHLIGHTS 2005 ESRF X-RAY ABSORPTION AND MAGNETIC

Paris-Sud 11, Université de

430

X-Ray and Neutron Diffraction  

Science Conference Proceedings (OSTI)

Oct 27, 2009 ... Use of the Advanced Photon Source at Argonne National Laboratory was supported by the U. S. Department of Energy, Office of Science, Office ...

431

Probing Spatial, Electronic Structures with X-ray Scattering, Spectroscopic  

NLE Websites -- All DOE Office Websites (Extended Search)

Probing Spatial, Electronic Structures with X-ray Scattering, Spectroscopic Probing Spatial, Electronic Structures with X-ray Scattering, Spectroscopic Techniques Wednesday, September 5, 2012 - 10:45am SLAC, Bldg. 137, Room 226 Gang Chen Seminar: Structures at atomic scales are traditionally determined through X-ray crystallography that amplifies scattering intensities by introducing spatial periodicity. For amorphous materials and many macromolecules, such as viruses, proteins and biofilms, it is hard to determine structures due to their incapability to crystallize or change of configuration during crystallization. In this talk, I will present the application of X-ray reflectivity and a newly developed fluctuation X-ray scattering technique to study the structures of lipid membranes and randomly oriented nanoparticles. Three different types of domain registrations occurring with

432

Resonant Soft X-Ray Scattering - Combining Structural with Spectroscopic  

NLE Websites -- All DOE Office Websites (Extended Search)

Resonant Soft X-Ray Scattering - Combining Structural with Spectroscopic Resonant Soft X-Ray Scattering - Combining Structural with Spectroscopic Refinement Friday, September 28, 2012 - 10:00am SLAC, Bldg. 137, Room 322 SSRL Presents Kevin Stone X-ray absorption spectroscopy has become an important tool in understanding the electronic structure of materials. Resonant absorption edges in the soft x-ray regime are especially interesting as they allow the study of the lighter elements, such as in organic or organo-metallic substances, as well as important L-edges of the 3d transition metals important in magnetic and oxide systems. Measurements of soft x-ray absorption spectra are inherently surface sensitive, and are plagued by issues such as extinction (in electron yield measurements) or self absorption (in fluorescence yield

433

Broadband high resolution X-ray spectral analyzer  

DOE Patents (OSTI)

A broad bandwidth high resolution x-ray fluorescence spectrometer has a performance that is superior in many ways to those currently available. It consists of an array of 4 large area microcalorimeters with 95% quantum efficiency at 6 keV and it produces x-ray spectra between 0.2 keV and 7 keV with an energy resolution of 7 to 10 eV. The resolution is obtained at input count rates per array element of 10 to 50 Hz in real-time, with analog pulse processing and thermal pile-up rejection. This performance cannot be matched by currently available x-ray spectrometers. The detectors are incorporated into a compact and portable cryogenic refrigerator system that is ready for use in many analytical spectroscopy applications as a tool for x-ray microanalysis or in research applications such as laboratory and astrophysical x-ray and particle spectroscopy.

Silver, Eric H. (Berkeley, CA); Legros, Mark (Berkeley, CA); Madden, Norm W. (Livermore, CA); Goulding, Fred (Lafayette, CA); Landis, Don (Pinole, CA)

1998-01-01T23:59:59.000Z

434

X-Ray Observations of Gamma-Ray Burst Afterglows  

E-Print Network (OSTI)

The discovery by the BeppoSAX satellite of X-ray afterglow emission from the gamma-ray burst which occurred on 28 February 1997 produced a revolution in our knowledge of the gamma-ray burst phenomenon. Along with the discovery of X-ray afterglows, the optical afterglows of gamma-ray bursts were discovered and the distance issue was settled, at least for long $\\gamma$-ray bursts. The 30 year mystery of the gamma-ray burst phenomenon is now on the way to solution. Here I rewiew the observational status of the X-ray afterglow emission, its mean properties (detection rate, continuum spectra, line features, and light curves), and the X-ray constraints on theoretical models of gamma-ray bursters and their progenitors. I also discuss the early onset afterglow emission, the remaining questions, and the role of future X-ray afterglow observations.

Filippo Frontera

2004-06-25T23:59:59.000Z

435

Broadband high resolution X-ray spectral analyzer  

DOE Patents (OSTI)

A broad bandwidth high resolution X-ray fluorescence spectrometer has a performance that is superior in many ways to those currently available. It consists of an array of 4 large area microcalorimeters with 95% quantum efficiency at 6 keV and it produces X-ray spectra between 0.2 keV and 7 keV with an energy resolution of 7 to 10 eV. The resolution is obtained at input count rates per array element of 10 to 50 Hz in real-time, with analog pulse processing and thermal pile-up rejection. This performance cannot be matched by currently available X-ray spectrometers. The detectors are incorporated into a compact and portable cryogenic refrigerator system that is ready for use in many analytical spectroscopy applications as a tool for X-ray microanalysis or in research applications such as laboratory and astrophysical X-ray and particle spectroscopy. 6 figs.

Silver, E.H.; Legros, M.; Madden, N.W.; Goulding, F.; Landis, D.

1998-07-07T23:59:59.000Z

436

Unexpected Angular Dependence of X-Ray Magnetic Linear Dichroism  

NLE Websites -- All DOE Office Websites (Extended Search)

Unexpected Angular Dependence of Unexpected Angular Dependence of X-Ray Magnetic Linear Dichroism Unexpected Angular Dependence of X-Ray Magnetic Linear Dichroism Print Wednesday, 29 August 2007 00:00 Using spectroscopic information for magnetometry and magnetic microscopy obviously requires detailed theoretical understanding of spectral shape and magnitude of dichroism signals. A research team at ALS Beamline 4.0.2 has now shown unambiguously that, contrary to common belief, spectral shape and magnitude of x-ray magnetic linear dichroism (XMLD) are not only determined by the relative orientation of magnetic moments and x-ray polarization, but their orientation relative to the crystallographic axes must be taken into account for accurate interpretation of XMLD data. Magnetism and X Rays

437

Availability Performance and Considerations for LCLS X-Ray FEL at SLAC  

Science Conference Proceedings (OSTI)

The Linac Coherent Light Source (LCLS) is an X-ray Free Electron Laser (FEL) facility located at the SLAC National Accelerator Laboratory. LCLS has been in operation since spring 2009, and it has completed its 3rd user run. LCLS is the first in its class of X-ray FEL user facilities, and presents different availability challenges compared to storage ring light sources. This paper presents recent availability performance of the FEL as well as factors to consider when defining the operational availability figure of merit for user runs. During LCLS [1] user runs, an availability of 95% has been set as a goal. In run III, LCLS photon and electron beam systems achieved availabilities of 94.8% and 96.7%, respectively. The total availability goal can be distributed among subsystems to track performance and identify areas that need attention in order to maintain and improve hardware reliability and operational availability. Careful beam time accounting is needed to understand the distribution of down time. The LCLS complex includes multiple experimental hutches for X-ray science, and each user program has different requirements of a set of parameters that the FEL can be configured to deliver. Since each user may have different criteria for what is considered 'acceptable beam', the quality of the beam must be considered to determine the X-ray beam availability.

Allen, W. B.

2011-08-16T23:59:59.000Z

438

Advances in materials science, Metals and Ceramics Division. Quarterly progress report, July-September 1979  

DOE Green Energy (OSTI)

Research is reported on materials for magnetic fusion energy, laser fusion energy, Al-air batteries, geothermal energy, oil shale, nuclear waste management, thermochemical cycles for hydrogen production, chemistry, and basic energy science. (FS)

Truhan, J.J.; Weld, F.N.

1979-10-25T23:59:59.000Z

439

Advances in materials science, Metals and Ceramics Division. Triannual progress report, October 1979-January 1980  

DOE Green Energy (OSTI)

Progress is summarized concerning magnetic fusion energy materials, laser fusion energy, aluminium-air battery and vehicle, geothermal research, oil-shale research, nuclear waste management, office of basic energy sciences research, and materials research notes. (FS)

Not Available

1980-03-31T23:59:59.000Z

440

PHYSICS, COMPUTER SCIENCE AND MATHEMATICS DIVISION. ANNUAL REPORT, 1 JAN. - 31 DEC. 1976  

E-Print Network (OSTI)

Steele J. Wagner 'J COMPUTER SCIENCE AND ApPLIED MATHEMATICSS. White Peter M. Wood COMPUTER CENTER STAFF U. F. J. E. P.Distributed Data Management and Computer Networks, LBL-S3lS,

Authors, Various

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

ReproducedfromSoilScienceSocietyofAmericaJournal.PublishedbySoilScienceSocietyofAmerica.Allcopyrightsreserved. DIVISION S-9--SOIL MINERALOGY  

E-Print Network (OSTI)

LIGO Hanford, WA W. M. KECK OBSERVATORY Mauna Kea, HI #12;19Su m m E r 2012 ENGINEERING & SCIENCE in Millimeter- Wave Astronomy (CArMA), which consists of 23 radio telescopes working together to produce high Meter telescope (tMt) is in the works there, too, with tentative plans for it to take its place among

Flury, Markus

442

Molecular simulation analysis and X-ray absorption measurement of Ca2+, K+, and Cl- ions in solution  

DOE Green Energy (OSTI)

Recent advances in the use of molecular simulations and Extended X-ray Absorption Fine Structure (EXAFS) spectroscopy to understand solvated ions in aqueous solutions are described. We report and discuss the results of the EXAFS spectra, Debye-Waller factors and the related properties governing solvation processes of different ions in water, as well as in different solvents (methanol). Molecular dynamics (MD) trajectories are coupled to electron scattering simulations to generate the EXAFS spectra, which are found to be in very good agreement with the corresponding experimental measurements. From these spectra, both the ion-oxygen and the ion-hydrogen distances for the first hydration shell are predicted to be within 0.1-0.2 Å. The ionic species studied range from monovalent to divalent, positive and negative: K+, Ca2+ and Cl-. This work demonstrates that the combination of MD-EXAFS and the corresponding experiment measurement provides a powerful tool in the analysis of the solvation structure of aqueous ionic solutions. We also investigate the value of electronic structure analysis of small aqueous clusters as a benchmark to the empirical potentials. In a novel computational approach, we compute the Debye-Waller factors combining a harmonic analysis of data obtained from electronic structure calculations on finite ionwater clusters, and we present a direct comparison with results from a harmonic classical statistical mechanical analysis of an empirical potential. Work was supported by the Office of Science, Office of Basic Energy Sciences, Chemical Sciences Division of the U.S. Department of Energy (DOE). The Pacific Northwest National Laboratory is operated by Battelle for DOE.

Dang, Liem X.; Schenter, Gregory K.; Glezakou, Vanda A.; Fulton, John L.

2006-11-30T23:59:59.000Z

443

Resonant Auger Effect at High X-Ray Intensity  

SciTech Connect

The resonant Auger effect of atomic neon exposed to high-intensity x-ray radiation in resonance with the 1s {yields} 3p transition is discussed. High intensity here means that the x-ray peak intensity is sufficient ({approx} 10{sup 18} W/cm{sup 2}) to induce Rabi oscillations between the neon ground state and the 1s{sup -1}3p ({sup 1}P) state within the relaxation lifetime of the inner-shell vacancy. For the numerical analysis presented, an effective two-level model, including a description of the resonant Auger decay process, is employed. Both coherent and chaotic x-ray pulses are treated. The latter are used to simulate radiation from x-ray free-electron lasers based on the principle of self-amplified spontaneous emission. Observing x-ray-driven atomic population dynamics in the time domain is challenging for chaotic pulse ensembles. A more practical option for experiments using x-ray free-electron lasers is to measure the line profiles in the kinetic energy distribution of the resonant Auger electron. This provides information on both atomic population dynamics and x-ray pulse properties.

Rohringer, N; Santra, R

2008-03-27T23:59:59.000Z

444

X-ray emission from laser-produced plasmas  

SciTech Connect

The intensity and spectral characteristics of x-ray emitted from laser-produced plasmas have been investigated computatinoally and experimentally. a two-dimensional implosi code was used successfully to calculate laser-plasma radiation characteristics and to aid in the design of laser targets for high-yield x-ray production. Other computer codes, in use or under development predict lime strengths and energies for laser-plasma x-ray emission. An experimental effort is aimed at reliable measurements of x-ray yields and spectra. a wide variety of x-ray detection methods have been evaluated, and x-ray yields have been measured from plasmas produced with two dissimilar laser systems. The high energy x-ray spectrum, from about 10 to 140 keV, has been studied using high-gain scintillatino detectors and thick K-edge filters. Various supplementary measurements have provided information concerning characteristics of the target-reflected laser light, the ion energies, and the laser intensity patterns.

Violet, C.E. [ed.

1974-07-01T23:59:59.000Z

445

The Role of Surface X-ray Scattering in Electrocatalysis  

NLE Websites -- All DOE Office Websites (Extended Search)

3 3 N. M. Markovi , LBNL and C. A. Lucas, University of Liverpool Ecological and political realities have moved discussions of, and advances in, fuel cell technology into mainstream public awareness. Electrocatalysis, the science of modifying the overall rates of electrochemical reactions so that selectivity, yield and efficiency are maximized, is the work from which those advances spring. Studies in electrocatalysis have resulted in highly selective multicomponent gas mixture sensors, human blood component sensors, new electrocatalysts for oxidation/reduction of inorganic and organic pollutants in air and water, as well as better electrocatalysts for the fuel cell conversion of renewable and fossil fuels to electrical work. Studies of the mechanisms by which these catalysts operate have been advanced through development of in-situ surface x-ray scattering (SXS) techniques. SXS capabilities at SSRL were recently used to investigate the interface structure of an ultrathin COad (adsorbed carbon monoxide) overlayer on platinum. This work has elevated the macroscopic description of the COad state at the solid-liquid interface to a microscopic level and enabled the relation between the reactivity and the interfacial structure of COad/Pt to be understood.

446

Direct three-dimensional coherently scattered x-ray microtomography  

Science Conference Proceedings (OSTI)

Purpose: It has been shown that coherently scattered x rays can be used to discriminate and identify specific components in a mixture of low atomic weight materials. The authors demonstrated a new method of doing coherently scattered x-ray tomography with a thin sheet of x ray. Methods: A collimated x-ray fan-beam, a parallel polycapillary collimator, and a phantom consisting of several biocompatible materials of low attenuation-based contrast were used to investigate the feasibility of the method. Because of the particular experimental setup, only the phantom translation perpendicular to the x-ray beam is needed and, thus, there is no need of Radon-type tomographic reconstruction, except for the correction of the attenuation to the primary and scattered x rays, which was performed by using a conventional attenuation-based tomographic image data set. The coherent scatter image contrast changes with momentum transfer among component materials in the specimen were investigated with multiple x-ray sources with narrow bandwidth spectra generated with anode and filter combinations of Cu/Ni (8 keV), Mo/Zr (18 keV), and Ag/Pd (22 keV) and at multiple scatter angles by orienting the detector and polycapillary collimator at different angles to the illuminating x ray. Results: The contrast among different materials changes with the x-ray source energy and the angle at which the image was measured. The coherent scatter profiles obtained from the coherent scatter images are consistent with the published results. Conclusions: This method can be used to directly generate the three-dimensional coherent scatter images of small animal, biopsies, or other small objects with low atomic weight biological or similar synthetic materials with low attenuation contrast. With equipment optimized, submillimeter spatial resolution may be achieved.

Cui Congwu; Jorgensen, Steven M.; Eaker, Diane R.; Ritman, Erik L. [Department of Medical Physics, CancerCare Manitoba, 675 McDermot Avenue, Winnipeg, Manitoba R3E 0V9 (Canada); Department of Physiology and Biomedical Engineering, Mayo Clinic, 200 First Street Southwest, Alfred Building 2-409, Rochester, Minnesota 55905 (United States)

2010-12-15T23:59:59.000Z

447

2011 U.S. National School on Neutron and X-ray Scattering  

Science Conference Proceedings (OSTI)

The 13th annual U.S. National School on Neutron and X-ray Scattering was held June 11 to 25, 2011, at both Oak Ridge and Argonne National Laboratories. This school brought together 65 early career graduate students from 56 different universities in the US and provided them with a broad introduction to the techniques available at the major large-scale neutron and synchrotron x-ray facilities. This school is focused primarily on techniques relevant to the physical sciences, but also touches on cross-disciplinary bio-related scattering measurements. During the school, students received lectures by over 30 researchers from academia, industry, and national laboratories and participated in a number of short demonstration experiments at Argonne's Advanced Photon Source (APS) and Oak Ridge's Spallation neutron Source (SNS) and High Flux Isotope Reactor (HFIR) facilities to get hands-on experience in using neutron and synchrotron sources. The first week of this year's school was held at Oak Ridge National Lab, where Lab director Thom Mason welcomed the students and provided a shitorical perspective of the neutron and x-ray facilities both at Oak Ridge and Argonne. The first few days of the school were dedicated to lectures laying out the basics of scattering theory and the differences and complementarity between the neutron and x-ray probes given by Sunil Sinha. Jack Carpenter provided an introduction into how neutrons are generated and detected. After this basic introduction, the students received lectures each morning on specific techniques and conducted demonstration experiments each afternoon on one of 15 different instruments at either the SNS or HFIR. Some of the topics covered during this week of the school included inelastic neutron scattering by Bruce Gaulin, x-ray and neutron reflectivity by Chuck Majkrazak, small-angle scattering by Volker Urban, powder diffraction by Ashfia Huq and diffuse scattering by Gene Ice.

Lang, Jonathan [Argonne National Laboratory (ANL); te Vethuis, Suzanne [Argonne National Laboratory (ANL); Ekkebus, Allen E [ORNL; Chakoumakos, Bryan C [ORNL; Budai, John D [ORNL

2012-01-01T23:59:59.000Z

448

Optical systems for synchrotron radiation: lecture 4. Soft x-ray imaging systems  

Science Conference Proceedings (OSTI)

The history and present techniques of soft x-ray imaging are reviewed briefly. The physics of x-ray imaging is described, including the temporal and spatial coherence of x-ray sources. Particular technologies described are: contact x-ray microscopy, zone plate imaging, scanned image zone plate microscopy, scanned image reflection microscopy, and soft x-ray holography and diffraction. (LEW)

Howells, M.R.

1986-04-01T23:59:59.000Z

449

Environmental Sciences Division annual progress report for period ending September 30, 1981  

SciTech Connect

Research programs from the following sections and programs are summarized: aquatic ecology, environmental resources, earth sciences, terrestrial ecology, advanced fossil energy program, toxic substances program, environmental impacts program, biomass, low-level waste research and development program, US DOE low-level waste management program, and waste isolation program.

Auerbach, S.I.; Reichle, D.E.

1982-04-01T23:59:59.000Z

450

Environmental Sciences Division annual progress report for period ending September 30, 1983  

DOE Green Energy (OSTI)

This annual report summarizes activities in the Aquatic Ecology, Earth Sciences, Environmental Analyses, and Terrestrial Ecology sections, as well as in the Fossil Energy, Biomass, Low-Level Waste Research and Management, and Global Carbon Cycle Programs. Separate abstracts have been prepared for each section. (ACR)

Not Available

1984-04-01T23:59:59.000Z

451

Federal Agencies Economics & Social Analysis Division Office of Science & Technology, NOAA Fisheries  

E-Print Network (OSTI)

of State www.state.gov/g/oes/ocns/ North Pacific Federal Agencies Economic & Social Sciences Research State Agencies Alaska Department of Fish & Game www.adfg.state.ak.us Councils & Commissions North://www.uscg.mil/D13/ State Agencies California Department of Fish & Game www.dfg.ca.gov Oregon Department of Fish

452

BES Chemical Sciences Division Research Highlight FWP ERKCT04; KC0302040  

E-Print Network (OSTI)

conversion of light energy for plant growth, uses two nanometer-scale molecular reaction centers operating reactions that generate voltages across the reaction centers and photosynthetic mem- brane, Department of Electrical Engineering, University of Tennes- see; Brian L. Justus, Optical Sciences Divi- sion

453

Bum Joon Kim - Argonne National Laboratories, Materials Sicence Division  

NLE Websites -- All DOE Office Websites (Extended Search)

EM > Bum Joon Kim EM > Bum Joon Kim Bum Joon Kim Assistant Physicist Bldg. 223, A-129 Phone: 630-252-5347 This e-mail address is being protected from spambots. You need JavaScript enabled to view it. Biography Bumjoon ("BJ") Kim is a staff scientist in the Material Science Division. He received B. A. from Korea Advanced Institute of Science and Technology in 1999 and Ph. D. from Seoul National University in 2005. His thesis involved angle-resolved photoemission (ARPES) studies of transition-metal oxides. Before joining MSD in 2010, he held postdoctoral position in University of Michigan and visiting assistant professor in University of Tokyo. His current research focuses on 5d transition-metal oxides, in which strong spin-orbit coupling and correlation effects conspire to realize novel phases of matter. His research program encompasses single crystal growth and characterizations, elastic and inelastic x-ray scattering, and ARPES.

454

THE NUCLEAR SPECTROSCOPIC TELESCOPE ARRAY (NuSTAR) HIGH-ENERGY X-RAY MISSION  

SciTech Connect

The Nuclear Spectroscopic Telescope Array (NuSTAR) mission, launched on 2012 June 13, is the first focusing high-energy X-ray telescope in orbit. NuSTAR operates in the band from 3 to 79 keV, extending the sensitivity of focusing far beyond the {approx}10 keV high-energy cutoff achieved by all previous X-ray satellites. The inherently low background associated with concentrating the X-ray light enables NuSTAR to probe the hard X-ray sky with a more than 100-fold improvement in sensitivity over the collimated or coded mask instruments that have operated in this bandpass. Using its unprecedented combination of sensitivity and spatial and spectral resolution, NuSTAR will pursue five primary scientific objectives: (1) probe obscured active galactic nucleus (AGN) activity out to the peak epoch of galaxy assembly in the universe (at z {approx}< 2) by surveying selected regions of the sky; (2) study the population of hard X-ray-emitting compact objects in the Galaxy by mapping the central regions of the Milky Way; (3) study the non-thermal radiation in young supernova remnants, both the hard X-ray continuum and the emission from the radioactive element {sup 44}Ti; (4) observe blazars contemporaneously with ground-based radio, optical, and TeV telescopes, as well as with Fermi and Swift, to constrain the structure of AGN jets; and (5) observe line and continuum emission from core-collapse supernovae in the Local Group, and from nearby Type Ia events, to constrain explosion models. During its baseline two-year mission, NuSTAR will also undertake a broad program of targeted observations. The observatory consists of two co-aligned grazing-incidence X-ray telescopes pointed at celestial targets by a three-axis stabilized spacecraft. Deployed into a 600 km, near-circular, 6 Degree-Sign inclination orbit, the observatory has now completed commissioning, and is performing consistent with pre-launch expectations. NuSTAR is now executing its primary science mission, and with an expected orbit lifetime of 10 yr, we anticipate proposing a guest investigator program, to begin in late 2014.

Harrison, Fiona A.; Cook, W. Rick; Forster, Karl; Grefenstette, Brian W.; Madsen, Kristin K.; Mao, Peter H.; Miyasaka, Hiromasa [Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA 91125 (United States); Craig, William W.; Pivovaroff, Michael J. [Lawrence Livermore National Laboratory, Livermore, CA 94550 (United States); Christensen, Finn E. [DTU Space, National Space Institute, Technical University of Denmark, Elektrovej 327, DK-2800 Lyngby (Denmark); Hailey, Charles J.; Koglin, Jason E.; Mori, Kaya [Columbia Astrophysics Laboratory, Columbia University, New York, NY 10027 (United States); Zhang, William W. [NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Boggs, Steven E. [Space Sciences Laboratory, University of California, Berkeley, CA 94720 (United States); Stern, Daniel; Kim, Yunjin [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States); Giommi, Paolo; Perri, Matteo [ASI Science Data Center, c/o ESRIN, via G. Galilei, I-00044 Frascati (Italy); Kitaguchi, Takao, E-mail: fiona@srl.caltech.edu [INAF-Osservatorio Astronomico di Roma, via di Frascati 33, I-00040 Monteporzio (Italy); and others

2013-06-20T23:59:59.000Z

455

X-ray imaging with grazing-incidence microscopes developed for the LIL program  

SciTech Connect

This article describes x-ray imaging with grazing-incidence microscopes, developed for the experimental program carried out on the Ligne d'Integration Laser (LIL) facility [J. P. Le Breton et al., Inertial Fusion Sciences and Applications 2001 (Elsevier, Paris, 2002), pp. 856-862] (24 kJ, UV--0.35 nm). The design includes a large target-to-microscope (400-700 mm) distance required by the x-ray ablation issues anticipated on the Laser MegaJoule facility [P. A. Holstein et al., Laser Part. Beams 17, 403 (1999)] (1.8 MJ) which is under construction. Two eight-image Kirkpatrick-Baez microscopes [P. Kirkpatrick and A. V. Baez J. Opt. Soc. Am. 38, 766 (1948)] with different spectral wavelength ranges and with a 400 mm source-to-mirror distance image the target on a custom-built framing camera (time resolution of {approx}80 ps). The soft x-ray version microscope is sensitive below 1 keV and its spatial resolution is better than 30 {mu}m over a 2-mm-diam region. The hard x-ray version microscope has a 10 {mu}m resolution over an 800-{mu}m-diam region and is sensitive in the 1-5 keV energy range. Two other x-ray microscopes based on an association of toroidal/spherical surfaces (T/S microscopes) produce an image on a streak camera with a spatial resolution better than 30 {mu}m over a 3 mm field of view in the direction of the camera slit. Both microscopes have been designed to have, respectively, a maximum sensitivity in the 0.1-1 and 1-5 keV energy range. We present the original design of these four microscopes and their test on a dc x-ray tube in the laboratory. The diagnostics were successfully used on LIL first experiments early in 2005. Results of soft x-ray imaging of a radiative jet during conical shaped laser interaction are shown.

Rosch, R.; Boutin, J. Y.; Le Breton, J. P.; Gontier, D.; Jadaud, J. P.; Reverdin, C.; Soullie, G.; Lidove, G.; Maroni, R. [CEA/DIF, BP 12, 91680 Bruyeres-Le-Chatel (France)

2007-03-15T23:59:59.000Z

456

X-ray afterglows from gamma-ray bursts  

E-Print Network (OSTI)

We consider possible interpretations of the recently detected X- ray afterglow from the gamma-ray burst source GRB 970228. Cosmological and Galactic models of gamma-ray bursts predict different flux and spectral evolution of X-ray afterglows. We show that models based on adiabatic expansion of relativistic forward shocks require very efficient particle energization or post-burst re-acceleration during the expansion. Cooling neutron star models predict a very distinctive spectral and flux evolution that can be tested in current X-ray data.

M. Tavani

1997-03-24T23:59:59.000Z

457

Ten years of Vela x-ray observations  

SciTech Connect

The Vela spacecraft, particularly Vela 5B, produced all-sky X-ray data of unprecedented length and completeness. The data led to the discovery of X-ray bursts and numerous transient outbursts. Recent re-analysis has put the data in the form of 10-day skymaps covering a 7-year period, which have led to the discovery or confirmation of a number of long-term periodicities, and have made possible a time-lapse movie of the X-ray sky.

Terrell, J.; Priedhorsky, W.C.

1983-01-01T23:59:59.000Z

458

X-ray imaging for environmental science Chris Jacobsen  

E-Print Network (OSTI)

at CNM, Electron Microscopy Center, plus computation. 16 #12;Ultrafast imaging of fuel injector sprays, Chris Jacobsen, Robert Towers. Not shown: Sue Wirick, Chris Peltzer. Phase contrast and fluorescence

459

Photon Sciences | Beamlines | CHX: Coherent Hard X-ray Scattering...  

NLE Websites -- All DOE Office Websites (Extended Search)

exceeding, for a photon energy near E8 keV, 1021 phsmrad2mm20.1 % bw (more than one order of magnitude higher than that of the Advanced Photon Source), the CHX beamline will...

460

Division Membership  

Science Conference Proceedings (OSTI)

Join a division, dues and activities. Division Membership Divisions achievement agricultural analytical application award awards biotechnology detergents distinguished division Divisions edible fats food Interest Area lipid lipids member membershi

Note: This page contains sample records for the topic "x-ray science division" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Chandra X-ray Observatory Detection of Extended X-ray Emission from the Planetary Nebula BD+303639  

E-Print Network (OSTI)

We report the detection of well resolved, extended X-ray emission from the young planetary nebula BD+303639 using the Advanced CCD Imaging Spectrometer (ACIS) aboard the Chandra X-ray Observatory. The X-ray emission from BD+303639 appears to lie within, but is concentrated to one side of, the interior of the shell of ionized gas seen in high-resolution optical and IR images. The relatively low X-ray temperature (Tx ~ 3x10^6 K) and asymmetric morphology of the X-ray emission suggests that conduction fronts are present and/or mixing of shock-heated and photoionized gas has occurred and, furthermore, hints at the presence of magnetic fields. The ACIS spectrum suggests that the X-ray emitting region is enriched in the products of helium burning. Our detection of extended X-ray emission from BD+303639 demonstrates the power and utility of Chandra imaging as applied to the study of planetary nebulae.

Kästner, J H; Vrtilek, S D; Dgani, R; Kastner, Joel H.; Soker, Noam; Vrtilek, Saeqa; Dgani, Ruth

2000-01-01T23:59:59.000Z

462

Chandra X-ray Observatory Detection of Extended X-ray Emission from the Planetary Nebula BD+303639  

E-Print Network (OSTI)

We report the detection of well resolved, extended X-ray emission from the young planetary nebula BD+303639 using the Advanced CCD Imaging Spectrometer (ACIS) aboard the Chandra X-ray Observatory. The X-ray emission from BD+303639 appears to lie within, but is concentrated to one side of, the interior of the shell of ionized gas seen in high-resolution optical and IR images. The relatively low X-ray temperature (Tx ~ 3x10^6 K) and asymmetric morphology of the X-ray emission suggests that conduction fronts are present and/or mixing of shock-heated and photoionized gas has occurred and, furthermore, hints at the presence of magnetic fields. The ACIS spectrum suggests that the X-ray emitting region is enriched in the products of helium burning. Our detection of extended X-ray emission from BD+303639 demonstrates the power and utility of Chandra imaging as applied to the study of planetary nebulae.

Joel H. Kastner; Noam Soker; Saeqa Vrtilek; Ruth Dgani

2000-10-09T23:59:59.000Z

463

Novel Approaches to Soft X-ray Spectroscopy: Scanning TransmissionX-ray Microscopy and Ambient Pressure X-Ray PhotoelectronSpectroscopy  

Science Conference Proceedings (OSTI)

This workshop focused on novel spectroscopies at Beamlines 11.0.2, 5.3.2 and 9.3.2 at the ALS. The workshop brought together users from a wide range of fields to highlight recent experimental and technical developments both in scanning transmission X-ray spectroscopy (STXM) and ambient pressure photoelectron spectroscopy (APPES). The morning session featured talks on experiments involving new developments at the STXM, while the afternoon session was devoted to those using APXPS. In the morning session, Tolek Tyliszczak discussed the improved detector developments at the STXM, such as an avalanche photodiode detector and fluorescence and electron detection, as well as the continued development of in situ cells for heating, gas flow, and electrochemical cells. Of these, only the avalanche photodiode in combination with a novel multichannel photon-counting system is in routine use in time-resolved studies. Bartel Van Waeyenberge (Ghent University) presented results of magnetic imaging with a time resolution of 70-100 ps combined with a lateral resolution of 20-40 nm performed with the STXM (Beamline 11.0.2). As a complement to the time-domain ''pump-and-probe'' measurements, they developed a frequency-domain ''sine-excitation'' technique in order to study specific eigenmodes of these ferromagnetic patterns with high spatial resolution. This new approach was used to study the gyrotropic vortex motions in micron-sized ferromagnetic patterns. Adam Hitchcock (McMaster University) presented the development, in collaboration with Daniel Guay (INRS, Varennes) and Sherry Zhang, of the apparatus and techniques for applying STXM to in-situ studies of electrochemistry, in particular electrochromism in polyaniline. In addition, substantial progress was reported on a joint project to develop substrates and methods for chemically selective lithography of multilayer polymer systems. Selective patterns, such as that displayed in the figure, can now be written efficiently with the bend magnet STXM on Beamline 5.3.2. Yves Acremann (SSRL) discussed time and spatially resolved X-ray magnetic circular dichroism (XMCD) experiments on spin transfer devices at the STXM (Beamline 11.0.2). These elegant experiments explore time resolved measurements of the magnetization dynamics within a 100 x 150 nm sample influenced by a spin-polarized current. This experiment shows that the magnetization in these magnetic nanostructures are not uniform, as they are influenced by the Oersted field of the charge current needed to generate the spin current. The implementation of a novel multichannel photon counting system in combination with an avalanche photon detector decreased the data-acquisition time by a factor of 10, owing to its ability to resolve the structure of multi bunch mode. Gordon E. Brown, Jr. (Stanford University and SSRL) described ''Applications of STXM to Microbial Bioweathering and Biomineralization''. In the interaction of bacteria with ferrihydrite nanoparticles, microenvironments that were very different than the bulk material were observed, showing that bulk thermodynamics may not be useful for predicting micro phases. Gordon also presented work showing that iron nanoparticles are attracted to the negatively charged bacteria and form a coating that reduces iron oxide minerals. The afternoon session started with presentations by Simon Mun and Hendrik Bluhm, who discussed the current status and the future plans for the two APPES end-stations at the ALS, which are located at Beamlines 9.3.2 and 11.0.2, respectively. In both end-stations, samples can be measured in gaseous environments at pressures of up to several Torr, which makes possible the investigation of numerous phenomena, in particular in the fields of atmospheric and environmental science as well as heterogeneous catalysis. Specific examples of the application of APPES were shown in the following presentations. John Hemminger (University of California, Irvine) reported on APPES investigations at Beamlines 9.3.2 and 11.0.2 of the interaction of alkali halide surfaces with water. The m

Bluhm, Hendrik; Gilles, Mary K.; Mun, Simon B.; Tyliszczak, Tolek

2006-02-01T23:59:59.000Z

464

The Coherent X-ray Imaging (CXI) Instrument at the Linac Coherent Light Source (LCLS)  

Science Conference Proceedings (OSTI)

The Linac Coherent Light Source (LCLS) has become the first ever operational hard X-ray Free Electron Laser in 2009. It will operate as a user facility capable of delivering unique research opportunities in multiple fields of science. The LCLS and the LCLS Ultrafast Science Instruments (LUSI) construction projects are developing instruments designed to make full use of the capabilities afforded by the LCLS beam. One such instrument is being designed to utilize the LCLS coherent beam to image with high resolution any sub-micron object. This instrument is called the Coherent X-ray Imaging (CXI) instrument. This instrument will provide a flexible optical system capable of tailoring key beam parameters for the users. A suite of shot-to-shot diagnostics will also be provided to characterize the beam on every pulse. The provided instrumentation will include multi-purpose sample environments, sample delivery and a custom detector capable of collecting 2D data at 120 Hz. In this article, the LCLS will be briefly introduced along with the technique of Coherent X-ray Diffractive Imaging (CXDI). A few examples of scientific opportunities using the CXI instrument will be described. Finally, the conceptual layout of the instrument will be presented along with a description of the key requirements for the overall system and specific devices required.

Boutet, Sebastien

2011-08-16T23:59:59.000Z

465

Active pixel sensors for X-ray astronomy  

E-Print Network (OSTI)

An active pixel sensor array, APS-1, has been fabricated for the purpose of scientific x-ray detection. This thesis presents the results of testing the device. Alternate design architectures are explored. Recommendations ...

Cohen, Matthew (Matthew L.)

2005-01-01T23:59:59.000Z

466

SLAC National Accelerator Laboratory - Fifth X-ray Instrument...  

NLE Websites -- All DOE Office Websites (Extended Search)

and more.) The technique has been used for years to probe materials with visible-light lasers, and more recently with X-ray light from synchrotrons. But the LCLS is the first...

467

SLAC National Accelerator Laboratory - X-ray Vision Exposes Aerosol...  

NLE Websites -- All DOE Office Websites (Extended Search)

up exciting possibilities in the study of aerosol dynamics using highly focused X-ray lasers, such as SLAC's Linac Coherent Light Source (LCLS). "Our study shows that LCLS can...

468

Magnetism studies using resonant, coherent, x-ray scattering...  

NLE Websites -- All DOE Office Websites (Extended Search)

10:00am SLAC, Bldg. 137, Room 226 Keoki Seu Seminar: With the advent of free electron lasers there has been interest in using coherent x-rays to probe condensed matter systems....

469

Lensless Imaging of Magnetic Nanostructures by X-ray Spectro...  

NLE Websites -- All DOE Office Websites (Extended Search)

F. Schlotter and J. Sthr (SSRL) The unprecedented properties of X-ray free electron lasers (X-FELs) under development world wide will open the door for entirely new classes of...

470

X-Ray Scattering Group, Condensed Matter Physics & Materials...  

NLE Websites -- All DOE Office Websites (Extended Search)

Ocko, B.M., Wen, K., Maoz, R., Cohen, H., and Sagiv, J. Non-destructive chemical modification of a preassembled silane multilayer: structural study by combined FTIR, x-ray...

471

The Ulysses Catalog of Solar Hard X-Ray Flares  

E-Print Network (OSTI)

rupted full-Sun coverage of major solar X-ray ?are activity.of Ulysses from the Sun in AU, and its solar longitude andof the solar disk shows the view of the Sun from Earth,

Tranquille, C.; Hurley, K.; Hudson, H. S.

2009-01-01T23:59:59.000Z

472

Radiological Safety Training for Radiation-Producing (X-Ray)...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

for General Radiation Safety Installations Using Non-Medical X-Ray and Sealed Gamma-Ray Sources, Energies up to 10 MEV, ANSI Standard N43.3, American National Standards...

473

Low Dose Radiation Research Program: Comparison of Soft X Rays...  

NLE Websites -- All DOE Office Websites (Extended Search)

Comparison of Soft X-Rays and Ions Irradiation in a Model of V79 Mammalian Cell Authors: B. Ginovska, J.H. Miller, D. J. Lynch and W. E. Wilson Institutions: School of Electrical...

474

SLAC National Accelerator Laboratory - X-rays Reveal How Soil...  

NLE Websites -- All DOE Office Websites (Extended Search)

2012 Menlo Park, Calif. - Researchers working at the U.S. Department of Energy's (DOE) SLAC National Accelerator Laboratory have used powerful X-rays to help decipher how certain...

475

Argonne TDC: Large Area CCD X-Ray Detector  

Large-Area CCD X-Ray Detector Opening Up New Horizons in the Study of Cellular and Metabolic Processes, Genetics, and Drug Development 2000 R&D 100 Award Winner!

476

Vitreous carbon mask substrate for X-ray lithography  

DOE Patents (OSTI)

The present invention is directed to the use of vitreous carbon as a substrate material for providing masks for X-ray lithography. The new substrate also enables a small thickness of the mask absorber used to pattern the resist, and this enables improved mask accuracy. An alternative embodiment comprised the use of vitreous carbon as a LIGA substrate wherein the VC wafer blank is etched in a reactive ion plasma after which an X-ray resist is bonded. This surface treatment provides a surface enabling good adhesion of the X-ray photoresist and subsequent nucleation and adhesion of the electrodeposited metal for LIGA mold-making while the VC substrate practically eliminates secondary radiation effects that lead to delamination of the X-ray resist form the substrate, the loss of isolated resist features, and the formation of a resist layer adjacent to the substrate that is insoluble in the developer.

Aigeldinger, Georg (Livermore, CA); Skala, Dawn M. (Fremont, CA); Griffiths, Stewart K. (Livermore, CA); Talin, Albert Alec (Livermore, CA); Losey, Matthew W. (Livermore, CA); Yang, Chu-Yeu Peter (Dublin, CA)

2009-10-27T23:59:59.000Z

477

SLAC National Accelerator Laboratory - X-ray Laser Takes Aim...  

NLE Websites -- All DOE Office Websites (Extended Search)

Laser Takes Aim at Cosmic Mystery December 12, 2012 Menlo Park, Calif. - Scientists have used powerful X-rays from the Linac Coherent Light Source (LCLS) at the U.S. Department of...

478

SLAC National Accelerator Laboratory - X-ray Laser Sees Photosynthesis...  

NLE Websites -- All DOE Office Websites (Extended Search)

new window on the way plants generate the oxygen we breathe, researchers used an X-ray laser at the Department of Energy's (DOE) SLAC National Accelerator Laboratory to...

479

SLAC National Accelerator Laboratory - X-ray Laser Brings Cellular...  

NLE Websites -- All DOE Office Websites (Extended Search)

a March experiment indicates it has, for the first time, used an X-ray free-electron laser - SLAC's Linac Coherent Light Source - to reconstitute the structure of a G...

480

Material Characterization with X-ray and Optical Techniques I  

Science Conference Proceedings (OSTI)

In Situ X-ray Nanocharacterization of Defects in Solar Cells: Mariana Bertoni1; ... a strong modeling tool for predicting and optimizing solar cell efficiency. ... levels (11 steps up to 55%) in order to understand the sequential damage process.

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481

X-Ray Scattering Group, Condensed Matter Physics & Materials...  

NLE Websites -- All DOE Office Websites (Extended Search)

D.F. Inelastic x-ray scattering investigations of lattice dynamics in SmFeAsO1-xFy superconductors. Proceedings of The 9th International Conference on Spectroscopies in Novel...

482

SLAC National Accelerator Laboratory - X-rays Capture Electron...  

NLE Websites -- All DOE Office Websites (Extended Search)

X-rays Capture Electron 'Dance' By Glenn Roberts Jr. January 30, 2013 The way electrons move within and between molecules, transferring energy as they go, plays an important role...

483

Using Light to Control How X Rays Interact with Matter  

NLE Websites -- All DOE Office Websites (Extended Search)

Using Light to Control How X Rays Interact with Matter Print Schemes that use one light pulse to manipulate interactions of another with matter are well developed in the...

484

Heat conduction in X-ray clusters: Spitzer over 3  

E-Print Network (OSTI)

Effective heat conduction in a random variable magnetic field should be equal to one third of the Spitzer's value. Recent observations indicate that this heat conduction is sufficient to account for the bremsstrahlung in cooling X-ray clusters.

Andrei Gruzinov

2002-03-04T23:59:59.000Z

485

High performance x-ray anti-scatter grid  

DOE Patents (OSTI)

Disclosed are an x-ray anti-scatter grid for x-ray imaging, particularly for screening mammography, and method for fabricating same, x-rays incident along a direct path pass through a grid composed of a plurality of parallel or crossed openings, microchannels, grooves, or slots etched in a substrate, such as silicon, having the walls of the microchannels or slots coated with a high opacity material, such as gold, while x-rays incident at angels with respect to the slots of the grid, arising from scatter, are blocked. The thickness of the substrate is dependent on the specific application of the grid, whereby a substrate of the grid for mammography would be thinner than one for chest radiology. Instead of coating the walls of the slots, such could be filed with an appropriate liquid, such as mercury. 4 Figs.

Logan, C.M.

1995-05-23T23:59:59.000Z

486

High performance x-ray anti-scatter grid  

DOE Patents (OSTI)

An x-ray anti-scatter grid for x-ray imaging, particularly for screening mammography, and method for fabricating same, x-rays incident along a direct path pass through a grid composed of a plurality of parallel or crossed openings, microchannels, grooves, or slots etched in a substrate, such as silicon, having the walls of the microchannels or slots coated with a high opacity material, such as gold, while x-rays incident at angels with respect to the slots of the grid, arising from scatter, are blocked. The thickness of the substrate is dependent on the specific application of the grid, whereby a substrate of the grid for mammography would be thinner than one for chest radiology. Instead of coating the walls of the slots, such could be filed with an appropriate liquid, such as mercury.

Logan, Clinton M. (Pleasanton, CA)

1995-01-01T23:59:59.000Z

487

The Ulysses Catalog of Solar Hard X-Ray Flares  

E-Print Network (OSTI)

its Solar X-ray/Cosmic Gamma-Ray Burst Experiment (GRB) hasInstrument The Ulysses Gamma-Ray Burst (GRB) instrument, hasrate due to a cosmic gamma-ray burst or a solar ?are, but we

Tranquille, C.; Hurley, K.; Hudson, H. S.

2009-01-01T23:59:59.000Z

488

Towards hard x-ray imaging at GHz frame rate  

SciTech Connect

Gigahertz (GHz) imaging using hard x-rays ( Greater-Than-Or-Equivalent-To 10 keV) can be useful to high-temperature plasma experiments, as well as research and applications using coherent photons from synchrotron radiation and x-ray free electron lasers. GHz framing rate can be achieved by using multiple cameras through multiplexing. The advantages and trade-offs of single-photon detection mode, when no more than one x-ray photon is detected per pixel, are given. Two possible paths towards x-ray imaging at GHz frame rates using a single camera are: (a) avalanche photodiode arrays of high-Z materials and (b) microchannel plate photomultipliers in conjunction with materials with large indices of refraction.

Wang Zhehui; Morris, C. L.; Kapustinsky, J. S.; Kwiatkowski, K.; Luo, S.-N. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2012-10-15T23:59:59.000Z

489

Towards hard X-ray imaging at GHz frame rate  

Science Conference Proceedings (OSTI)

Gigahertz (GHz) imaging using hard X-rays ({approx}> 10 keV) can be useful to high-temperature plasma experiments, as well as research using coherent photons from synchrotron radiation and X-ray free electron lasers. GHz framing rate can be achieved by using multiple cameras through multiplexing. The advantages and trade-offs of single-photon detection mode, when no more than one X-ray photon is detected per pixel, are given. Two possible paths towards X-ray imaging at GHz frame rates using a single camera are (a) Avalanche photodiode arrays of high-Z materials and (b) Microchannel plate photomultipliers in conjunction with materials with large indices of refraction.

Wang, Zhehui [Los Alamos National Laboratory; Morris, Christopher [Los Alamos National Laboratory; Luo, Shengnian [Los Alamos National Laboratory; Kwiatkowski, Kris K. [Los Alamos National Laboratory; Kapustinsky, Jon S. [Los Alamos National Laboratory

2012-05-02T23:59:59.000Z

490

Calibration of High-Resolution X-Ray Tomography With ...  

Science Conference Proceedings (OSTI)

... The x-ray attenuation of the sample at this energy was close to the ... J. Coal Geol. ... G. Xu, DE Eastman, I. McNulty, SP Frigo, Y. Wang, CC Retsch, IC ...

2001-04-11T23:59:59.000Z

491

Soft x-ray capabilities for investigating the strongly correlated electron  

NLE Websites -- All DOE Office Websites (Extended Search)

Soft x-ray capabilities for investigating the strongly correlated electron Soft x-ray capabilities for investigating the strongly correlated electron materials Friday, September 14, 2012 - 1:00pm SLAC, Bldg. 137, Room 226 Jun-Sik Lee Seminar One of the most challenging extant issues in condensed matter physics and applied materials science is the search for post-silicon based electronics, and multi-functional complex oxides offer hopes that new classes of devices can be developed out of these intriguing materials. In that context, the strongly correlated systems display an extremely rich interplay of charge, spin, and lattice interactions that have extensively been studied. This is because nature has already shown how powerful this interplay is: high Tc superconductivity, multiferroelectric, colossal magnetoresistance, and novel behavior in a heterostructure. Of the complex oxides, perovskites are

492

High-energy X-rays shine light on mystery of Picasso's paints | Argonne  

NLE Websites -- All DOE Office Websites (Extended Search)

energy X-rays shine light on mystery of Picasso's paints energy X-rays shine light on mystery of Picasso's paints By Tona Kunz * February 6, 2013 Tweet EmailPrint LEMONT, Ill. - The Art Institute of Chicago teamed up with Argonne National Laboratory to help unravel a decades-long debate among art scholars about what kind of paint Picasso used to create his masterpieces. The results published last month in the journal Applied Physics A: Materials Science & Processing add significant weight to the widely held theory that Picasso was one of the first master painters to use common house paint rather than traditional artists' paint. That switch in painting material gave birth to a new style of art marked by canvasses covered in glossy images with marbling, muted edges, and occasional errant paint drips, but devoid of brush marks. Fast-drying enamel house paint enabled

493

Scanning Transmission X-ray Microscopy: Applications in Atmospheric Aerosol Research  

E-Print Network (OSTI)

G. R. et al. Scanning transmission X-ray microscopy: A newwith the scanning transmission X-ray microscope at BESSY II.T. et al. Scanning transmission X-ray microscopy imaging of

Moffet, Ryan C.

2011-01-01T23:59:59.000Z

494

Argonne CNM Highlight: World?s Most Precise ?Hard X-Ray?  

NLE Websites -- All DOE Office Websites (Extended Search)

World's Most Precise "Hard X-Ray" Nanoprobe Activated X-rays from an APS undulator exiting the front end window of the nanoprobe beamline. X-rays from an APS undulator exiting the...

495

X-ray streak and framing camera techniques  

SciTech Connect

This paper reviews recent developments and applications of ultrafast diagnostic techniques for x-ray measurements. These techniques, based on applications of image converter devices, are already capable of significantly important resolution capabilities. Techniques capable of time resolution in the sub-nanosecond regime are being considered. Mechanical cameras are excluded from considerations as are devices using phosphors or fluors as x-ray converters.

Coleman, L.W.; Attwood, D.T.

1975-12-23T23:59:59.000Z

496

The complex soft X-ray spectrum of NGC 4151  

E-Print Network (OSTI)

We present a detailed analysis of the complex soft X-ray spectrum of NGC 4151 measured by the RGS instruments aboard XMM-Newton. The XMM-Newton RGS spectra demonstrate that the soft X-ray emission is extremely rich in X-ray emission lines and radiative recombination continua (RRC), with no clear evidence for any underlying continuum emission. Line emission, and the associated RRC, are clearly detected from hydrogen-like and helium-like ionization states of neon, oxygen, nitrogen and carbon. The measured lines are blueshifted with a velocity of between ~100-1000 km/s, with respect to the systemic velocity of NGC 4151, approximately consistent with the outflow velocities of the absorption lines observed in the UV, suggestive of an origin for the UV and soft X-ray emission in the same material. Plasma diagnostics imply a range of electron temperatures of ~1-5x10^4 K and electron densities of between 10^8-10^10 cm^-3. The soft X-ray spectrum of NGC 4151 is extremely similar to that of NGC 1068, suggesting that the soft X-ray excesses observed in many Seyfert galaxies may be composed of similar emission features. Modelling the RGS spectra in terms of emission from photoionized and photoexcited gas in an ionization cone reproduces all of the hydrogen-like and helium-like emission features observed in the soft X-ray spectrum of NGC 4151 in detail and confirms the correspondence between the soft X-ray emission in NGC 4151 and NGC 1068.

N. J. Schurch; R. S. Warwick; R. E. Griffiths; S. M. Kahn

2004-01-26T23:59:59.000Z

497

Apparatus for obtaining an X-ray image  

DOE Patents (OSTI)

A computed tomography apparatus in which a fan-shaped X-ray beam is caused to pass through a section of an object, enabling absorption detection on the opposite side of the object by a detector comprising a plurality of discrete detector elements. An electron beam generating the X-ray beam by impacting upon a target is caused to rotate over the target.

Watanabe, Eiji (Tokyo, JP)

1979-01-01T23:59:59.000Z

498

Kinoform optics applied to X-ray photon correlation specroscopy  

Science Conference Proceedings (OSTI)

Moderate-demagnification higher-order silicon kinoform focusing lenses have been fabricated to facilitate small-angle X-ray photon correlation spectroscopy (XPCS) experiments. The geometric properties of such lenses, their focusing performance and their applicability for XPCS measurements are described. It is concluded that one-dimensional vertical X-ray focusing via silicon kinoform lenses significantly increases the usable coherent flux from third-generation storage-ring light sourc