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Note: This page contains sample records for the topic "laser ms bransby" 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.


1

Laser Materials Processing - Programmaster.org  

Science Conference Proceedings (OSTI)

Oct 17, 2011 ... Laser Applications in Materials Technology (II): Laser Materials Processing Sponsored by: MS&T Organization Program Organizers: Stephen...

2

Laser Applications in Materials Technology (II)  

Science Conference Proceedings (OSTI)

About this Symposium. Meeting, Materials Science & Technology 2011. Symposium, Laser Applications in Materials Technology (II). Sponsorship, MS&T ...

3

Laser Applications in Materials Processing - Programmaster.org  

Science Conference Proceedings (OSTI)

About this Symposium. Meeting, Materials Science & Technology 2010. Symposium, Laser Applications in Materials Processing. Sponsorship, MS&T...

4

LA-11224-MS  

Office of Scientific and Technical Information (OSTI)

11224-MS 11224-MS UC-66a and UC-70 Issued: March 1988 LA--112 2 4-MS DE88 005902 FEHM: Finite Element Heat and Mass Transfer Code George Zyvoloski Zora Dash Sharad Kelkar 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, makes any warranty, express or implied, or assumes any legal liability or responsi- bility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Refer- ence herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recom-

5

LA-10256-MS  

Office of Legacy Management (LM)

10256-MS 10256-MS Los Alamos National Laboratory is operated by the University of California for the United States Department of Energy under contract W-7405-ENG-36. Radiological Survey and Evaluation of the Fallout Area fom the Trinity Test: Chupadera Mesa and White Sands Misile Range, New Mexco - ~ ~S1S' :ts rV T Los Alamos National Laboratory Ly© /.aU U UwHjm ©,Los Alamos, New Mexico 87545 An Affirmative Action/Equal Opportunity Employer Prepared by Kathy Derouin, Group HSE-8 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, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness,

6

Laser desorption ionization and peptide sequencing on laser induced silicon microcolumn arrays  

SciTech Connect

The present invention provides a method of producing a laser-patterned silicon surface, especially silicon wafers for use in laser desorption ionization (LDI-MS) (including MALDI-MS and SELDI-MS), devices containing the same, and methods of testing samples employing the same. The surface is prepared by subjecting a silicon substrate to multiple laser shots from a high-power picosecond or femtosecond laser while in a processing environment, e.g., underwater, and generates a remarkable homogenous microcolumn array capable of providing an improved substrate for LDI-MS.

Vertes, Akos (Reston, VA); Chen, Yong (San Diego, CA)

2011-12-27T23:59:59.000Z

7

M&S methodological challenges  

Science Conference Proceedings (OSTI)

M&S provides a formal way to generate or test existing knowledge. Like mathematics, M&S provides an apparatus for deduction while generating data that can be used for statistical inference. However, unlike mathematics, M&S's formal approach varies from ... Keywords: epistemology, methodology, philosophy

Jose J. Padilla, Andreas Tolk, Saikou Y. Diallo

2013-04-01T23:59:59.000Z

8

MS, II-J  

Office of Legacy Management (LM)

I' ; ,' I' ; ,' Departm&th of Energy 1 MS, II-J Washington. DC 20585 ' . I I The Honorable John Gallagher ,)fl', /',' ' 103 E. Michigan Avenue .i., ,.' Battle Creek, Michigan 49016 _. Dear Mayor Gallagheri d,---, " '/ approachto openness i.n: with the: public. In (FUSRAP)i.is responsible agencies, determining ~author~ity, performing remedial action to cleanup sites to meet current radiological protection requirements.. A conservative set of technical evaluation guidelines is used in these investigations to assure protection of public health,,~safety and then environment. Where.DQE does not,have .authority for proceeding; the available site information is forwarded to the appropriate Federal or State Agency. DOE studied the historical records of the former Oliver Corp. site, and it

9

Ms. Sharon M. Fiorillo  

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

Sharon M. Fiorillo Sharon M. Fiorillo 6927 Wilson Street West Mifflin, PA 15122 Dear Ms. Fiorillo: Department of Energy Washington, DC 20585 MAR - 5 2008_ Re: OHA Case No. TBB-0070 This letter concerns the complaint of retaliation that you filed with the Department of Energy (DOE) under 10 C.F.R. Part 708. On August 20, 2007, the Office of Hearings and Appeals (OHA) received your petition for Secretarial review of the July 16, 2007, jurisdictional appeal decision issued by the OHA Acting Director. You filed a statement of arguments in support of your position on September 4, 2007. 'Onder the Part 708 regulations, the Secretary will reverse or revise an appeal decision by the OHA Director only in extraordinary circumstances. 10 C.F.R. § 708.19. The basis of this proceeding is your contention that you made a

10

Is LA-12152-MS  

Office of Scientific and Technical Information (OSTI)

Is Is LA-12152-MS DE91 016813 A Weibull Brittle Material Failure Model for the ABAQUS Computer Program Joel Bennett L ('r^^r5' /A\ n^rnr?i/'7^(^ '-°s Alamos National Laboratory l y j ^ /AAUCSILI LI U i y j ^ LOS Alamos.New Mexico 87545 ^ _ . * i - 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, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product,

11

Workshops: MS&T '04  

Science Conference Proceedings (OSTI)

Sep 26, 2004 ... Office of Legislative and Public Affairs National Science Foundation Ms. Hanson has worked in the media and public affairs business for more...

12

Nonclassical hydrodynamic behavior of Sn plasma irradiated withalong duration CO2 laser pulse  

E-Print Network (OSTI)

with a long duration CO 2 laser pulse Y. Tao M.S. Tillackwith a long duration CO 2 laser pulse is much shorter thanmass and makes a CO 2 -laser-produced Sn plasma suitable as

Tao, Y.; Tillack, M. S.; Yuseph, S.; Burdt, R.; Najmabadi, F.

2010-01-01T23:59:59.000Z

13

METLIN: MS/MS metabolite data from the MAGGIE Project  

DOE Data Explorer (OSTI)

METLIN is a metabolite database for metabolomics containing over 50,000 structures, it also represents a data management system designed to assist in a broad array of metabolite research and metabolite identification by providing public access to its repository of current and comprehensive MS/MS metabolite data. An annotated list of known metabolites and their mass, chemical formula, and structure are available on the METLIN website. Each metabolite is conveniently linked to outside resources such as the the Kyoto Encyclopedia of Genes and Genomes (KEGG) for further reference and inquiry. MS/MS data is also available on many of the metabolites. The list is expanding continuously as more metabolite information is being deposited and discovered. [Copied from http://metlin.scripps.edu/]

Metlin is a component of the MAGGIE Project. MAGGIE is funded by the DOE Genomics: GTL and is an acronym for "Molecular Assemblies, Genes, and Genomics Integrated Efficiently."

14

LA-5097-MS INFORMAL REPORT  

Office of Legacy Management (LM)

5097-MS 5097-MS INFORMAL REPORT lamos lamos scientific laboratory scientific laboratory of the University of California of the University of California LOS ALAMOS. NEW MEXICO 87544 LOS ALAMOS. NEW MEXICO 87544 Los AIamos Land Areas Environmental Radiation Survey 1972 . In the interest of prompt distribution, this LAMS re port was not edited by the Technical Information staff. Printed in the United States of America. Available from National Technical Information Service U. S. Department of Commerce 5285 Port Royal Road Springfield, Virginia 22151 Price: Printed Copy $3.00; Microfiche $0.95 * ii. : . IOS alamos LA-5097.MS Informal Report UC-41 ISSUED: November 1972 sctentific laboratory of the University of California LOS ALAMO% NEW MEXICO 81544 I L Los Alamos Land Areas

15

Category:Jackson, MS | Open Energy Information  

Open Energy Info (EERE)

MS MS Jump to: navigation, search Go Back to PV Economics By Location Media in category "Jackson, MS" The following 16 files are in this category, out of 16 total. SVFullServiceRestaurant Jackson MS Entergy Mississippi Inc.png SVFullServiceRestauran... 63 KB SVHospital Jackson MS Entergy Mississippi Inc.png SVHospital Jackson MS ... 74 KB SVLargeHotel Jackson MS Entergy Mississippi Inc.png SVLargeHotel Jackson M... 63 KB SVLargeOffice Jackson MS Entergy Mississippi Inc.png SVLargeOffice Jackson ... 72 KB SVMediumOffice Jackson MS Entergy Mississippi Inc.png SVMediumOffice Jackson... 72 KB SVMidriseApartment Jackson MS Entergy Mississippi Inc.png SVMidriseApartment Jac... 62 KB SVOutPatient Jackson MS Entergy Mississippi Inc.png SVOutPatient Jackson M... 74 KB

16

Ms  

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

Bogart provided legal support on issues regarding public contract acquisitions, appropriations law, environmental law, transportation, security and national defense. Since...

17

Laser Ignition  

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

Ignition Laser Ignition A first excitation laser or other excitation light source is used in tandem with an ignitor laser to provide a compact, durable, engine deployable fuel...

18

Laser ablation electrospray ionization (LAESI) for atmospheric pressure, in vivo, and imaging mass spectrometry  

DOE Patents (OSTI)

The field of the invention is atmospheric pressure mass spectrometry (MS), and more specifically a process and apparatus which combine infrared laser ablation with electrospray ionization (ESI).

Vertes, Akos; Nemes, Peter

2013-07-16T23:59:59.000Z

19

Three-dimensional molecular imaging by infrared laser ablation electrospray ionization mass spectrometry  

DOE Patents (OSTI)

The field of the invention is atmospheric pressure mass spectrometry (MS), and more specifically a process and apparatus which combine infrared laser ablation with electrospray ionization (ESI).

Vertes, Akos; Nemes, Peter

2013-07-16T23:59:59.000Z

20

Three-dimensional molecular imaging by infrared laser ablation electrospray ionization mass spectrometry  

DOE Patents (OSTI)

The field of the invention is atmospheric pressure mass spectrometry (MS), and more specifically a process and apparatus which combine infrared laser ablation with electrospray ionization (ESI).

Vertes, Akos; Nemes, Peter

2012-10-30T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Laser ablation electrospray ionization (LAESI) for atmospheric pressure, In vivo, and imaging mass spectrometry  

SciTech Connect

The field of the invention is atmospheric pressure mass spectrometry (MS), and more specifically a process and apparatus which combine infrared laser ablation (LA) with electrospray ionization (ESI).

Vertes, Akos (Reston, VA); Nemes, Peter (Silver Spring, MD)

2011-11-29T23:59:59.000Z

22

M&S education: practical approach  

Science Conference Proceedings (OSTI)

As M&S work force needs increase, debate continues about what Modeling and Simulation (M&S) education should look like or where it belongs. Many schools are currently taking steps to develop undergraduate programs in M&S. This paper proposes a practical ... Keywords: apprenticeship, courses, technician education, undergraduate education

Irin Hall

2009-03-01T23:59:59.000Z

23

Laser Ignition  

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

Laser Ignition Laser Ignition Laser Ignition A first excitation laser or other excitation light source is used in tandem with an ignitor laser to provide a compact, durable, engine deployable fuel ignition laser system. Available for thumbnail of Feynman Center (505) 665-9090 Email Laser Ignition A first excitation laser or other excitation light source is used in tandem with an ignitor laser to provide a compact, durable, engine deployable fuel ignition laser system. Reliable fuel ignition is provided over a wide range of fuel conditions by using a single remote excitation light source for one or more small lasers located proximate to one or more fuel combustion zones. In two embodiments the beam from the excitation light source is split with a portion of it going to the ignitor laser and a second portion

24

Laser Radiometry  

Science Conference Proceedings (OSTI)

... over a wide range of powers, energies, and wavelengths. ... the SI units for laser power and energy. ... Novel power meter for high-efficiency laser diode ...

2012-04-18T23:59:59.000Z

25

HDX-MS for Biopharmaceutical Analysis  

Science Conference Proceedings (OSTI)

... Improve HDX-MS technology for measurements of trans-membrane protein drug ... to find the epitope of Proliferating Cell Nuclear Antigen (PCNA ...

2013-09-17T23:59:59.000Z

26

Laser cooling to quantum degeneracy  

E-Print Network (OSTI)

We report on Bose-Einstein condensation (BEC) in a gas of strontium atoms, using laser cooling as the only cooling mechanism. The condensate is formed within a sample that is continuously Doppler cooled to below 1\\muK on a narrow-linewidth transition. The critical phase-space density for BEC is reached in a central region of the sample, in which atoms are rendered transparent for laser cooling photons. The density in this region is enhanced by an additional dipole trap potential. Thermal equilibrium between the gas in this central region and the surrounding laser cooled part of the cloud is established by elastic collisions. Condensates of up to 10^5 atoms can be repeatedly formed on a timescale of 100ms, with prospects for the generation of a continuous atom laser.

Stellmer, Simon; Grimm, Rudolf; Schreck, Florian

2013-01-01T23:59:59.000Z

27

Laser Spectro.  

Science Conference Proceedings (OSTI)

For more information about my work on laser spectroscopy, consult the following papers: Sansonetti, CJ, Gillaspy, JD, and ...

28

Analysis of Carbamate Pesticides: Validation of Semi-Volatile Analysis by HPLC-MS/MS by EPA Method MS666  

Science Conference Proceedings (OSTI)

The Environmental Protection Agency's (EPA) Region 5 Chicago Regional Laboratory (CRL) developed a method for analysis of aldicarb, bromadiolone, carbofuran, oxamyl, and methomyl in water by high performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS), titled Method EPA MS666. This draft standard operating procedure (SOP) was distributed to multiple EPA laboratories and to Lawrence Livermore National Laboratory, which was tasked to serve as a reference laboratory for EPA's Environmental Reference Laboratory Network (ERLN) and to develop and validate analytical procedures. The primary objective of this study was to validate and verify the analytical procedures described in MS666 for analysis of carbamate pesticides in aqueous samples. The gathered data from this validation study will be used to: (1) demonstrate analytical method performance; (2) generate quality control acceptance criteria; and (3) revise the SOP to provide a validated method that would be available for use during a homeland security event. The data contained in this report will be compiled, by EPA CRL, with data generated by other EPA Regional laboratories so that performance metrics of Method EPA MS666 can be determined.

Owens, J; Koester, C

2008-05-14T23:59:59.000Z

29

Analysis of Combustion Chamber Deposits by ESI-TOF-MS and MALDI-TOF-MS  

DOE Green Energy (OSTI)

Combustion chamber deposits (CCDs) in internal combustion engines have been studied by various techniques to understand the relationship of performance degradation with deposit quantity and structure. XPS, XAS, NMR, and elemental analysis have offered insight into the bulk structure of C, H, N, O and metal components [1]. MS has offered some information about compound structure, but results are limited due to the insolubility and complexity of the materials. Recent advances in MS have opened new possibilities for analysis of CCDs. Here we report initial findings on the carbon structure of these deposits determined by ESI-TOF-MS and MADLI-TOF-MS.

Reynolds, J G; Shields, S J; Roos, J W

2001-06-14T23:59:59.000Z

30

The athermal Laser  

E-Print Network (OSTI)

A new laser concept is presented, called the athermal laser, unifying all the hitherto known implementations of radiative laser cooling.

Muys, Peter

2009-01-01T23:59:59.000Z

31

Laser device  

DOE Patents (OSTI)

A laser device includes a target position, an optical component separated a distance J from the target position, and a laser energy source separated a distance H from the optical component, distance H being greater than distance J. A laser source manipulation mechanism exhibits a mechanical resolution of positioning the laser source. The mechanical resolution is less than a spatial resolution of laser energy at the target position as directed through the optical component. A vertical and a lateral index that intersect at an origin can be defined for the optical component. The manipulation mechanism can auto align laser aim through the origin during laser source motion. The laser source manipulation mechanism can include a mechanical index. The mechanical index can include a pivot point for laser source lateral motion and a reference point for laser source vertical motion. The target position can be located within an adverse environment including at least one of a high magnetic field, a vacuum system, a high pressure system, and a hazardous zone. The laser source and an electro-mechanical part of the manipulation mechanism can be located outside the adverse environment. The manipulation mechanism can include a Peaucellier linkage.

Scott, Jill R. (Idaho Falls, ID); Tremblay, Paul L. (Idaho Falls, ID)

2007-07-10T23:59:59.000Z

32

Ms. Rebecca Peterson Energy Information Administration  

Gasoline and Diesel Fuel Update (EIA)

Ms. Rebecca Peterson Ms. Rebecca Peterson Energy Information Administration Submitted by email: ERS2014@eia.gov Dear Ms. Peterson: This is to comment on the Energy Information Administration's (EIA) solicitation of comments on the proposed three-year reauthorization of forms EIA-63B, EIA-411, EIA-826, EIA-860, EIA-860M, EIA-861, EIA-861S, and EIA-923, and the creation of form EIA-930. These comments are in response to the notice published in Vol. 78, No. 44 of the Federal Register on March 6, 2013. Omaha Public Power District (OPPD) is a customer-owned electric utility and political subdivision of the state of Nebraska. OPPD is currently a balancing authority and owns a transmission system and

33

Manahmen fr MS Windows Betriebssysteme Gerd Hofmann  

E-Print Network (OSTI)

Ma?nahmen für MS Windows Betriebssysteme Gerd Hofmann IT-Sicherheitsforum - Betriebssystemsicherheit 24. Juni 2004 #12;24.06.04 gerd.hofmann@rrze.uni-erlangen.de 2Windows Sicherheit Vorstellung Gerd-85-28920 RRZE: Raum RZ 2.013 #12;24.06.04 gerd.hofmann@rrze.uni-erlangen.de 3Windows Sicherheit Inhaltsliste

Fiebig, Peter

34

Laser Catalyst  

INLs Laser Catalyst is a method for removing contaminant matter from a porous material. A polymer material is applied to a contaminated surface and ...

35

Characterization Of Nuclear Materials Using Time-Of-Flight ICP-MS  

Science Conference Proceedings (OSTI)

The investigation of illicit trafficking of nuclear materials, nuclear safeguards analysis, and non-proliferation control requires sensitive and isotope-selective detection methods to gain crucial nuclear forensic information like isotope 'fingerprints' and multi-element signatures. The advantage of time-of-flight (TOF) mass spectrometry - quasi-simultaneous multi-mass analysis - combined with an inductively coupled plasma (ICP) ion source provides an analytical instrument with multi-element and multi-isotope capability and good detection limits. A TOF-ICP-MS system thus appears to be an advantageous choice for the investigation and characterization of nuclear materials. We present here results using a GBC OptiMass 8000 time-of-flight ICP-MS for the isotope screening of solid samples by laser ablation and the multi-element determination of impurities in uranium ore concentrates using matrix matched standards. A laser ablation system (New Wave Research, UP 213) coupled to the TOF-ICP-MS instrument has been used to optimize the system for analysis of non-radioactive metal samples of natural isotopic composition for a variety of elements including Cu, Sr, Zr, Mo, Cd, In, Ba, Ta, W, Re, Pt, and Pb in pure metals, alloys, and glasses to explore precision, accuracy, and detection limits. Similar methods were then applied to measure uranium. When the laser system is optimized, no mass bias correction is required. Precision and accuracy for the determination of the isotopic composition is typically 1 - 3% for elemental concentrations of as little as 50 ppm in the matrix, with no requirement for sample preparation. The laser ablation precision and accuracy are within ~10x of the instrumental limits for liquid analysis (0.1%). We have investigated the capabilities of the TOF-ICP-MS for the analysis of impurities in uranium matrices. Matrix matching has been used to develop calibration curves for a range of impurities (alkaline, earth-alkaline, transition metals, and rare earth elements). These calibration curves have been used to measure impurities in a number of uranium samples. The results from the TOF-ICP-MS will be compared with other mass spectrometric methods.

Buerger, Stefan [ORNL; Riciputi, Lee R [ORNL; Bostick, Debra A [ORNL; Duckworth, Douglas {Doug} C [ORNL

2006-01-01T23:59:59.000Z

36

MASIC: a software program for fast quantitation and flexible visualization of chromatographic profiles from detected LC-MS(/MS) features  

SciTech Connect

Quantitative analysis of liquid chromatography (LC)- mass spectrometry (MS) and tandem mass spectrometry (MS/MS) data is essential to many proteomics studies. We have developed MASIC to accurately measure peptide abundances and LC elution times in low-resolution LC-MS/MS analyses. This software program uses an efficient processing algorithm to quickly generate mass specific selected ion chromatograms from a dataset and provides an interactive browser that allows users to examine individual chromatograms in a variety of fashions. The improved elution time estimates afforded by MASIC increase the utility of LC-MS/MS data in the accurate mass and time (AMT) tag approach to proteomics.

Monroe, Matthew E.; Shaw, Jason L.; Daly, Don S.; Adkins, Joshua N.; Smith, Richard D.

2008-06-01T23:59:59.000Z

37

NIST Laser Applications Group Homepage  

Science Conference Proceedings (OSTI)

Laser Applications Group. Welcome. The Laser Applications Group advances laser technology for applications in optical ...

2012-05-10T23:59:59.000Z

38

Analysis of Phosphonic Acids: Validation of Semi-Volatile Analysis by HPLC-MS/MS by EPA Method MS999  

DOE Green Energy (OSTI)

The Environmental Protection Agency's (EPA) Region 5 Chicago Regional Laboratory (CRL) developed a method titled Analysis of Diisopropyl Methylphosphonate, Ethyl Hydrogen Dimethylamidophosphate, Isopropyl Methylphosphonic Acid, Methylphosphonic Acid, and Pinacolyl Methylphosphonic Acid in Water by Multiple Reaction Monitoring Liquid Chromatography/Tandem Mass Spectrometry: EPA Version MS999. This draft standard operating procedure (SOP) was distributed to multiple EPA laboratories and to Lawrence Livermore National Laboratory, which was tasked to serve as a reference laboratory for EPA's Environmental Reference Laboratory Network (ERLN) and to develop and validate analytical procedures. The primary objective of this study was to validate and verify the analytical procedures described in EPA Method MS999 for analysis of the listed phosphonic acids and surrogates in aqueous samples. The gathered data from this validation study will be used to: (1) demonstrate analytical method performance; (2) generate quality control acceptance criteria; and (3) revise the SOP to provide a validated method that would be available for use during a homeland security event. The data contained in this report will be compiled, by EPA CRL, with data generated by other EPA Regional laboratories so that performance metrics of EPA Method MS999 can be determined.

Owens, J; Vu, A; Koester, C

2008-10-31T23:59:59.000Z

39

Metalworking Lasers  

Science Conference Proceedings (OSTI)

...Several models of metalworking lasers of both domestic and foreign manufacture are commercially available. The majority of these are of either the neodymium yttrium-aluminum garnet (Nd:YAG) solid-state type or the carbon dioxide (CO 2 ) gas type. These lasers may have pulsed or...

40

Laser device  

DOE Patents (OSTI)

A laser device includes a virtual source configured to aim laser energy that originates from a true source. The virtual source has a vertical rotational axis during vertical motion of the virtual source and the vertical axis passes through an exit point from which the laser energy emanates independent of virtual source position. The emanating laser energy is collinear with an orientation line. The laser device includes a virtual source manipulation mechanism that positions the virtual source. The manipulation mechanism has a center of lateral pivot approximately coincident with a lateral index and a center of vertical pivot approximately coincident with a vertical index. The vertical index and lateral index intersect at an index origin. The virtual source and manipulation mechanism auto align the orientation line through the index origin during virtual source motion.

Scott, Jill R. (Idaho Falls, ID); Tremblay, Paul L. (Idaho Falls, ID)

2008-08-19T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Energy Management Standards (EnMS)  

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

Management Standards (EnMS) Paul Scheihing U.S. DOE January, 2009 2 Why an Energy Management Standard? Most energy efficiency in industry is achieved through changes in how energy is managed in a facility, rather than through installation of new technologies; An energy management standard provides a method for integrating energy efficiency into existing industrial or commercial management systems for continuous improvement; All existing and planned energy management standards are compatible with ISO 9000/14000 1 ; Companies who have voluntarily adopted an energy management plan (a central feature of an EnMS - Standard) have achieved major energy intensity improvements 2 . 1 International Organization for Standardization (ISO) 2 Btu/lb of product ANSI Accredited U.S. TAG to ISO/PC 242

42

Laser Beams  

E-Print Network (OSTI)

Community needs to work together to provide the technical case for funding an IFE program. IFE program should nurture competition, with judgments made on the basis of technical progress and the potential of the various approaches to IFE. Direct-drive with lasers looks very attractive for IFE, the physics and needed technologies are mature and advancing. KrF provides physics advantages for direct drive. KrFs demonstrated performance is competitive with solid state lasers as a high-rep-rate durable, efficient IFE driver. (on several important parameters KrF technology leads) Direct Laser Drive is a better choice for Energy

Steve Obenschain

2010-01-01T23:59:59.000Z

43

Gas laser  

SciTech Connect

According to the invention, the gas laser comprises a housing which accommodates two electrodes. One of the electrodes is sectional and has a ballast resistor connected to each section. One of the electrodes is so secured in the housing that it is possible to vary the spacing between the electrodes in the direction of the flow of a gas mixture passed through an active zone between the electrodes where the laser effect is produced. The invention provides for a maximum efficiency of the laser under different operating conditions.

Kosyrev, F. K.; Leonov, A. P.; Pekh, A. K.; Timofeev, V. A.

1980-08-12T23:59:59.000Z

44

Laser barometer  

DOE Patents (OSTI)

This paper describes an invention of a pressure measuring instrument which uses laser radiation to sense the pressure in an enclosed environment by means of measuring the change in refractive index of a gas - which is pressure dependent.

Abercrombie, K.R.; Shiels, D.; Rash, T.

1998-04-01T23:59:59.000Z

45

Analysis of Combustion Chamber Deposits by ESI-TOF-MS and MALDI-TOF-MS  

DOE Green Energy (OSTI)

Combustion chamber deposits (CCD) in internal combustion engines have been studied by various techniques to understand the relationship of performance degradation with deposit quantity and structure. XPS, XAS, NMR, and elemental analysis have offered insight into the bulk structure of C, H, N, O and metal components. MS has offered some information about compound structure, but results are limited due to the insolubility and complexity of the materials. Recently, we have reported on the metal structure by XPS and XAS of several deposits from a GM 3800 engine generated using a standard fuel and one that contains low levels of the gasoline anti-knock additive, MMT. Here we report the initial findings on the carbon structure of these deposits determined by ESI-TOF-MS and MADLI-TOF-MS.

Reynolds, J G; Shields, S J; Roos, J W

2001-06-14T23:59:59.000Z

46

Educating the workforce: M&S professional education  

Science Conference Proceedings (OSTI)

As Modeling & Simulation (M&S) becomes increasingly important, there is a significant and growing need to educate and train M&S practitioners and researchers. The Department of Defense (DoD) has a growing need for an educated M&S workforce. This need ...

Margaret L. Loper; Amy Henninger; John W. Diem; Mikel D. Petty; Andreas Tolk

2011-12-01T23:59:59.000Z

47

laser_measurements  

Science Conference Proceedings (OSTI)

Dimensional Measurements. Laser Measurements. Rate our Services. Technical ... Laser Frequency/Wavelength (14510S-14511S). The ...

2013-04-09T23:59:59.000Z

48

Laser Beam Delivery [Laser Applications Laboratory] - Nuclear...  

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

Laser Glazing of Railroad Rails High Power Laser Beam Delivery Decontamination and Decommissioning Refractory Alloy Welding Robots Applications Other Facilities Other Capabilities...

49

Lasers and Optoelectronic Components Used with Lasers  

Science Conference Proceedings (OSTI)

... example, beam profile and relative intensity noise ... for the laser wavelengths and energies for which ... The laser power and energy measurements are ...

2013-06-28T23:59:59.000Z

50

Ms. Leslie Jones ENERGY STAR Program  

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

December 21,2010 December 21,2010 U.S. Environmental Protection Agency 1200 Pennsylvania Avenue, NW Room 62023 Washington, DC 20460 Dear Ms. Jones: On November 24, 2010, the United States Department of Energy (DOE) notified Haier that DOE had tested the Haier room air conditioner model ESA3087 as part of the ENERGY STAR Testing Pilot Program, and that, according to Stage I testing, this model exceeded allowable ENERGY STAR energy-efficiency requirements by 18 percent. DOE gave Haier until December 3, 2010, to request additional testing or have this matter referred to the United States Environmental Protection Agency (EPA) for disqualification from the ENERGY STAR program. On December 2, Haier notified DOE that it was in the process of voluntarily removing model

51

Ms. Leslie Jones ENERGY STAR Program  

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

September 20, 2011 September 20, 2011 U.S. Environmental Protection Agency 1200 Pennsylvania Avenue, NW Room 62023 Washington, DC 20460 Dear Ms. Jones: On March 7, 2011, the United States Depmiment of Energy (DOE) notified Baier America Trading, L.L.C. (Baier) that DOE had completed testing of Baier refrigerator model PRTS21SAC* under the ENERGY STAR Verification Testing Pilot Program and confirmed that the model did not meet ENERGY STAR energy efficiency requirements. DOE gave Baier until March 28, 2011, to provide conclusive manufacturing or design evidence or quality assurance information to rebut DOE testing results, which showed that this product did not meet the ENERGY STAR Program's energy efficiency requirement. Baier responded to DOE in a letter dated March 22, 2011, contending that the results of

52

Ms. Leslie Jones ENERGY STAR Program  

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

June 6, 2012 June 6, 2012 U.S. Environmental Protection Agency 1200 Pennsylvania Avenue, NW Room62023 Washington, DC 20460 Dear Ms. Jones: On October 28, 2011, the United States Depatiment of Energy (DOE) notified Friedrich Air Conditioning Company (Friedrich) that DOE had completed testing of Friedrich room air conditioner models WS12Cl0 and WS13C30 under the ENERGY STAR Testing Pilot Program and confirmed that these models do not meet the ENERGY STAR energy efficiency requirement of9.4 EER. On November 3, 201 I, DOE notified Friedrich that its room air conditioner model USI2C30 does not meet the ENERGY STAR energy efficiency requirement of9.4 EER. In each notice, DOE gave Friedrich twenty days to provide conclusive manufacturing or design evidence or quality assurance information on why DOE testing showed that these models do not

53

Ms. Leslie Jones ENERGY STAR Program  

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

July 7, 2011 July 7, 2011 U.S. Environmental Protection Agency 1200 Pennsylvania Avenue NW Room62023 Washington, DC 20460 Dear Ms. Jones: Electrolux Home Products, Inc. (Electro lux) room air conditioner model FRA256ST2 was selected for testing as part of the U.S. Department of Energy's (DOE) ENERGY STAR® Verification Testing Pilot Program. DOE's initial testing, performed on a unit of this model, indicated that it may not meet ENERGY STAR requirements. After testing three additional units of this model, and finding that each fell short of the minimum standard of9.4 EER, DOE asked Electrolux to provide conclusive manufacturing or design evidence or quality assurance information on why this product should be viewed as meeting the ENERGY STAR Program's energy efficiency

54

Laser barometer  

DOE Patents (OSTI)

A pressure measuring instrument that utilizes the change of the refractive index of a gas as a function of pressure and the coherent nature of a laser light to determine the barometric pressure within an environment. As the gas pressure in a closed environment varies, the index of refraction of the gas changes. The amount of change is a function of the gas pressure. By illuminating the gas with a laser light source, causing the wavelength of the light to change, pressure can be quantified by measuring the shift in fringes (alternating light and dark bands produced when coherent light is mixed) in an interferometer.

Abercrombie, Kevin R. (Westminster, CO); Shiels, David (Thornton, CO); Rash, Tim (Aurora, CO)

2001-02-06T23:59:59.000Z

55

Laser wavelength effects in ultrafast near-field laser nanostructuring...  

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

Laser wavelength effects in ultrafast near-field laser nanostructuring of Si Title Laser wavelength effects in ultrafast near-field laser nanostructuring of Si Publication Type...

56

EA-1655: Berkeley Lab Laser Accelerator (BELLA) Laser Acquisition...  

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

655: Berkeley Lab Laser Accelerator (BELLA) Laser Acquisition, Installation and Use for Research and Development EA-1655: Berkeley Lab Laser Accelerator (BELLA) Laser Acquisition,...

57

LA-9252-MS UC-70a  

Office of Legacy Management (LM)

/p/j ,()i --' /p/j ,()i --' z!- LA-9252-MS UC-70a Issued: May 1982 Environmental Analysis of the Bayo Canyon (TA-10) Site, Los Alamos, New Mexico Roger W. Ferenbaugh Thomas E. Buhl Alan K. Stoker Wayne FL Hansen kos A[am@ Los Alamos,New Mexico 87545 Los Alamos National Laboratory CONTENTS ABSTRACT 1 1.0 INTRODUCTION AND BACKGROUND 1.1 The FUSRAP Program 1.2 Preferred Alternative 2.0 THE BAY0 CANYON SITE 2.1 Summary History and Description of Site 2.1.1 Description of Site 2.1.2 History of Site 2.2 Need for Action 2.2.1 Radiological Risk 2.2.1.1 Method of Estimating Risk 2.2.1.2 Results of Dose Calculations 2.2.1.3 Health Risks from Residual Bayo Canyon Contamination 2.2.2 Criteria upon Which Cleanup Action is Based 2.3 Other Agencies Involved in Implementation of the

58

Equal Opportunity & Diversity Office WH15 MS117  

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

Equal Opportunity & Diversity Office WH15 MS117 Questions & to Volunteer: Samantha Poeppelman x3933 Barb Hehner x 2986 Sandra Charles x 4574 Wednesday & Thursday, November 13 & 14,...

59

Trace element fingerprinting of ancient Chinese gold with femtosecond laser  

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

Trace element fingerprinting of ancient Chinese gold with femtosecond laser Trace element fingerprinting of ancient Chinese gold with femtosecond laser ablation-inductivity coupled mass spectrometry Title Trace element fingerprinting of ancient Chinese gold with femtosecond laser ablation-inductivity coupled mass spectrometry Publication Type Journal Article Year of Publication 2009 Authors Brostoff, Lynn B., Jhanis J. Gonzalez, Paul Jett, and Richard E. Russo Journal Journal of Archeological Science Volume 36 Start Page 461 Issue 2 Pagination 461-466 Date Published 02/2009 Keywords Ancient gold, femtosecond, la-icp-ms, Trace element Abstract In this collaborative investigation, femtosecond laser ablation-inductively coupled mass spectrometry (LA-ICP-MS) was applied to the study of a remarkable group of ancient Chinese gold objects in the Smithsonian's Freer Gallery of Art and Arthur M. Sackler Gallery. Taking advantage of the superior ablation characteristics and high precision of a femtosecond 266 nm Ti:sapphire laser at Lawrence Berkeley National Laboratory, major, minor and trace element concentrations in the gold fragments were quantified. Results validate use of femtosecond LA-ICP-MS for revealing ''fingerprints'' in minute gold samples. These fingerprints allow us to establish patterns based on the association of silver, palladium and platinum that support historical, technical and stylistic relationships, and shed new light on these ancient objects.

60

Heterodyne laser diagnostic system  

DOE Patents (OSTI)

The heterodyne laser diagnostic system includes, in one embodiment, an average power pulsed laser optical spectrum analyzer for determining the average power of the pulsed laser. In another embodiment, the system includes a pulsed laser instantaneous optical frequency measurement for determining the instantaneous optical frequency of the pulsed laser.

Globig, Michael A. (Antioch, CA); Johnson, Michael A. (Pleasanton, CA); Wyeth, Richard W. (Livermore, CA)

1990-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Environment/Health/Safety (EHS): Laser Safety  

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

Laser Safety Home Whom to Call Analysis of Laser Safety Occurrences: 2005-2011 Laser Bio-effects Laser Classification Laser Disposal Guide Laser Forms Laser Newsletter Laser Lab...

62

PhD Chemical Engineering MS Chemical Engineering  

E-Print Network (OSTI)

1 PhD Chemical Engineering MS Chemical Engineering Bylaws Gene and Linda Voiland School of ChemicalD Chemical Engineering, MS Chemical Engineering B. Discipline: Edgar, et al.1 provide a succinct description of chemical engineering: "chemical engineers seek to understand, manipulate, and control the molecular basis

Collins, Gary S.

63

How do lasers work?  

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

all the way through college physics. Let me try anyway, but first let's define what a laser and laser light are. Laser is an acronym for Light Amplification by Stimulated...

64

Free Electron Laser  

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

Free Electron Laser Building Exterior Top Floor Control Room RF Gallery User Lab Beam Enclosure Injector Linear Accelerator Wiggler Magnet Return Line Free Electron Laser Most...

65

Free electron lasers  

SciTech Connect

A review of experimental and theoretical concepts of a free electron laser is given. The possibilities of scaling these lasers to high powers are discussed. (MOW)

Brau, C.A.

1980-01-01T23:59:59.000Z

66

Femtosecond Laser Frequency Combs  

Science Conference Proceedings (OSTI)

... to all of these is the continued development of the lasers themselves. We are exploring and comparing different types of fs-laser comb technology ...

67

Physics Out Loud - Laser  

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

Previous Video (Hybrid Meson) Physics Out Loud Main Index Next Video (Matter) Matter Laser Learn all about different types of lasers with Jefferson Lab's Michelle Shinn, a...

68

Laser Music System.  

E-Print Network (OSTI)

?? A Laser Music System has been created, that combines a laser and light sensor system with an infrared distance sensing system that detects the (more)

Woodruff, Astra

2012-01-01T23:59:59.000Z

69

Laser Propulsion - Quo Vadis  

SciTech Connect

First, an introductory overview of the different types of laser propulsion techniques will be given and illustrated by some historical examples. Second, laser devices available for basic experiments will be reviewed ranging from low power lasers sources to inertial confinement laser facilities. Subsequently, a status of work will show the impasse in which the laser propulsion community is currently engaged. Revisiting the basic relations leads to new avenues in ablative and direct laser propulsion for ground based and space based applications. Hereby, special attention will be devoted to the impact of emerging ultra-short pulse lasers on the coupling coefficient and specific impulse. In particular, laser sources and laser propulsion techniques will be tested in microgravity environment. A novel approach to debris removal will be discussed with respect to the Satellite Laser Ranging (SRL) facilities. Finally, some non technical issues will be raised aimed at the future prospects of laser propulsion in the international community.

Bohn, Willy L. [Institute of Technical Physics, German Aerospace Center (DLR) D-70569 Pfaffenwaldring 38-40, Stuttgart (Germany)

2008-04-28T23:59:59.000Z

70

Elemental and Isotopic Analysis of Uranium Oxide an NIST Glass Standards by FEMTOSECOND-LA-ICP-MIC-MS  

Science Conference Proceedings (OSTI)

The objective of this work was to test and demonstrate the analytical figures of merit of a femtosecond-laser ablation (fs-LA) system coupled with an inductively coupled plasma-multi-ion collector-mass spectrometer (ICP-MIC-MS). The mobile fs-LA sampling system was designed and assembled at Ames Laboratory and shipped to Oak Ridge National Laboratory (ORNL), where it was integrated with an ICP-MIC-MS. The test period of the integrated systems was February 2-6, 2009. Spatially-resolved analysis of particulate samples is accomplished by 100-shot laser ablation using a fs-pulsewidth laser and monitoring selected isotopes in the resulting ICP-MS transient signal. The capability of performing high sensitivity, spatially resolved, isotopic analyses with high accuracy and precision and with virtually no sample preparation makes fs-LA-ICP-MIC-MS valuable for the measurement of actinide isotopes at low concentrations in very small samples for nonproliferation purposes. Femtosecond-LA has been shown to generate particles from the sample that are more representative of the bulk composition, thereby minimizing weaknesses encountered in previous work using nanosecond-LA (ns-LA). The improvement of fs- over ns-LA sampling arises from the different mechanisms for transfer of energy into the sample in these two laser pulse-length regimes. The shorter duration fs-LA pulses induce less heating and cause less damage to the sample than the longer ns pulses. This results in better stoichiometric sampling (i.e., a closer correlation between the composition of the ablated particles and that of the original solid sample), which improves accuracy for both intra- and inter-elemental analysis. The primary samples analyzed in this work are (a) solid uranium oxide powdered samples having different {sup 235}U to {sup 238}U concentration ratios, and (b) glass reference materials (NIST 610, 612, 614, and 616). Solid uranium oxide samples containing {sup 235}U in depleted, natural, and enriched abundances were analyzed as particle aggregates immobilized in a collodion substrate. The uranium oxide samples were nuclear reference materials (CRMs U0002, U005-A, 129-A, U015, U030-A, and U050) obtained from New Brunswick Laboratory-USDOE.

Ebert, Chris; Zamzow, Daniel S.; McBay, Eddie H.; Bostick, Debra A.; Bajic, Stanley J.; Baldwin, David P.; Houk, R.S.

2009-06-01T23:59:59.000Z

71

Short wavelength laser  

DOE Patents (OSTI)

A short wavelength laser is provided that is driven by conventional-laser pulses. A multiplicity of panels, mounted on substrates, are supported in two separated and alternately staggered facing and parallel arrays disposed along an approximately linear path. When the panels are illuminated by the conventional-laser pulses, single pass EUV or soft x-ray laser pulses are produced.

Hagelstein, P.L.

1984-06-25T23:59:59.000Z

72

Narrow gap laser welding  

SciTech Connect

A laser welding process including: (a) using optical ray tracing to make a model of a laser beam and the geometry of a joint to be welded; (b) adjusting variables in the model to choose variables for use in making a laser weld; and (c) laser welding the joint to be welded using the chosen variables.

Milewski, John O. (Santa Fe, NM); Sklar, Edward (Santa Fe, NM)

1998-01-01T23:59:59.000Z

73

Narrow gap laser welding  

DOE Patents (OSTI)

A laser welding process including: (a) using optical ray tracing to make a model of a laser beam and the geometry of a joint to be welded; (b) adjusting variables in the model to choose variables for use in making a laser weld; and (c) laser welding the joint to be welded using the chosen variables. 34 figs.

Milewski, J.O.; Sklar, E.

1998-06-02T23:59:59.000Z

74

Longitudinal discharge laser baffles  

DOE Patents (OSTI)

The IR baffles placed between the window and the electrode of a longitudinal discharge laser improve laser performance by intercepting off-axis IR radiation from the laser and in doing so reduce window heating and subsequent optical distortion of the laser beam.

Warner, Bruce E. (Livermore, CA); Ault, Earl R. (Dublin, CA)

1994-01-01T23:59:59.000Z

75

Longitudinal discharge laser baffles  

DOE Patents (OSTI)

The IR baffles placed between the window and the electrode of a longitudinal discharge laser improve laser performance by intercepting off-axis IR radiation from the laser and in doing so reduce window heating and subsequent optical distortion of the laser beam. 1 fig.

Warner, B.E.; Ault, E.R.

1994-06-07T23:59:59.000Z

76

Interface contributions to peak broadening in CE-ESI-MS  

SciTech Connect

The applications of capillary electrophoresis (CE) are expanding, and a number of commercial CE instruments are now available. Combining CE with mass spectroscopy (MS), first done with an electrospray ionization (ESI) interface, yields additional advantages. Other interfaces have been proposed, but CE-ESI-MS offers better sensitivity, reduced background, applicability to higher molecular weight (MW) compounds and a better interface design. Our aim has been to exploit the advantages of automated CE coupled to MS for separation of biological materials. Details of our instrument design are provided. Samples used for these studies were a mixture of myoglobin proteins (MW {approximately}17 kilodaltons) and a tryptic digest of tuna cytochrome c. The results show the ESI-MS interface does not broaden bands, and ion dissociation in the mass spectrometer permits the unambiguous identification of fragments in cases where mass alone is insufficient. 2 refs., 2 figs. (MHB)

Udseth, H.R.; Barinaga, C.J.; Smith, R.D. (Pacific Northwest Lab., Richland, WA (USA)); Whitted, W.H. (Beckman Instruments, Inc., Palo Alto, CA (USA))

1991-06-01T23:59:59.000Z

77

Genizah MS T-S AS 152.98  

E-Print Network (OSTI)

Accounts and lists, probably from a notebook. On 1r list of Genesis Parashot, on 2v several names such as Sulaym?n, Sa??d and M?s?, with numerals....

Unknown

2011-02-24T23:59:59.000Z

78

To: Ms. Patrice Brewington From: The Environmental Project  

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

To: Ms. Patrice Brewington From: The Environmental Project Re: Quarterly Report (July 1,2005 - September 30,2005) Federal FY 4Q DOE Expenditures: 924,746.60 Summary During FY '05...

79

Laser Glazing of Railroad Rails [Laser Applications Laboratory] - Nuclear  

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

Laser Glazing of Railroad Laser Glazing of Railroad Rails Capabilities Engineering Experimentation Reactor Safety Experimentation Aerosol Experiments System Components Laser Applications Overview Laser Oil & Gas Well Drilling Laser Heat Treatment Laser Welding of Metals On-line Monitoring Laser Beam Delivery Laser Glazing of Railroad Rails High Power Laser Beam Delivery Decontamination and Decommissioning Refractory Alloy Welding Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Laser Applications Laboratory Laser Glazing of Railroad Rails Project description: Laser glazing of rails. Category: Project with industrial partner (American Association of Railroads) Bookmark and Share

80

Laser Welding of Metals [Laser Applications Laboratory] - Nuclear  

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

Laser Welding of Metals Laser Welding of Metals Capabilities Engineering Experimentation Reactor Safety Experimentation Aerosol Experiments System Components Laser Applications Overview Laser Oil & Gas Well Drilling Laser Heat Treatment Laser Welding of Metals On-line Monitoring Laser Beam Delivery Laser Glazing of Railroad Rails High Power Laser Beam Delivery Decontamination and Decommissioning Refractory Alloy Welding Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Laser Applications Laboratory Laser Welding of Metals Project description: High-speed laser welding of metals. Category: Project with industrial partner (Delphi Energy and Engine Management Systems) Bookmark and Share

Note: This page contains sample records for the topic "laser ms bransby" 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

Laser Guiding for GeV Laser-Plasma Accelerators  

E-Print Network (OSTI)

Light pipe for high intensity laser pulses. Phys. Rev. Lett.and relativistically strong laser pulses in an underdensefrom Thomson scat- tering using laser wake?eld accelerators.

Leemans, Wim; Esarey, Eric; Geddes, Cameron; Schroeder, C.B.; Toth, Csaba

2005-01-01T23:59:59.000Z

82

Nonlinear laser energy depletion in laser-plasma accelerators  

E-Print Network (OSTI)

Nonlinear laser energydepletion in laser-plasma accelerators ? B. A. Shadwick,of intense, short-pulse lasers via excitation of plasma

Shadwick, B.A.

2009-01-01T23:59:59.000Z

83

The Development of a Frequency Control System of a Seeded Laser for DGV Application  

E-Print Network (OSTI)

For an effective Doppler Global Velocimeter (DGV), there is a requirement to accurately record and tune the frequency content of the laser used. The laser used for this experiment was an ND:YAG. Adjusting the mean frequency of the ND:YAG is accomplished by controlling the seed laser diode output, which also narrows the bandwidth of the laser to below 20 MHz. The exact frequency of operation is critical for the operation of the system. Standard interferometry techniques that measure laser frequency content, such as Fabre-Perot and grating based systems, are not able to provide an adequate spectrum resolution for the 9 ns pulse duration of the ND:YAG laser. A method was developed that employs a CCD line camera and a laser reference cell to effectively and cost efficiently solve this problem. The hardware and software for this real time monitoring system were developed and used with a real time feedback loop to stabilize the laser operating frequency at a specified value. The receiving optics of this DGV system were upgraded with 12 bit CCD cameras and a temperature controlled laser reference cell to decrease the uncertainty to the velocity measurement from over 4 m/s to less than 1 m/s. Recommendations to the effectiveness of the system and future improvements are provided.

Nelson, Brent

2008-12-01T23:59:59.000Z

84

Laser system for secondary cooling of {sup 87}Sr atoms  

SciTech Connect

A laser system with a narrow generation line for secondary laser cooling of {sup 87}Sr atoms has been developed and investigated. It is planned to use ultracold {sup 87}Sr atoms loaded in an optical lattice in an optical frequency standard. To this end, a 689-nm semiconductor laser has been stabilised using an external reference ultrastable cavity with vibrational and temperature compensation near the critical point. The lasing spectral width was 80 Hz (averaging time 40 ms), and the frequency drift was at a level of 0.3 Hz s{sup -1}. Comparison of two independent laser systems yielded a minimum Allan deviation: 2 Multiplication-Sign 10{sup -14} for 300-s averaging. It is shown that this system satisfies all requirements necessary for secondary cooling of 87Sr atoms using the spectrally narrow {sup 1}S{sub 0} - {sup 3}P{sub 1} transition ({lambda} = 689 nm). (cooling of atoms)

Khabarova, K Yu; Slyusarev, S N; Strelkin, S A; Belotelov, G S; Kostin, A S; Pal'chikov, Vitaly G; Kolachevsky, Nikolai N

2012-11-30T23:59:59.000Z

85

LANL | Physics | Trident Laser Facility  

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

science at Trident Laser Facility Several important discoveries and first observations have been made at the Trident Laser Facility, a unique three-beam neodymium-glass laser...

86

Feasibility Study on Laser Microwelding and Laser Shock Peening using Femtosecond Laser Pulses.  

E-Print Network (OSTI)

??Ultrafast lasers of sub-picosecond pulse duration have thus far been investigated for ablation, drilling and cutting processes. Ultrafast lasers also have the potential for laser (more)

Lee, Dongkyun

2008-01-01T23:59:59.000Z

87

BNL | CO2 Laser  

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

CO2 Laser CO2 Laser The ATF is one of the only two facilities worldwide operating picosecond, terawatt-class CO2 lasers. Our laser system consists of a picoseconds pulse-injector based on fast optical switching from the output of a conventional CO2 laser oscillator, and a chain of high-pressure laser amplifiers. It starts with a wavelength converter wherein a near-IR picosecond solid-state laser with l»1 μm produces a mid-IR 10-μm pulse. This process employs two methods; semiconductor optical switching, and the Kerr effect. First, we combine the outputs from a multi-nanosecond CO2 laser oscillator with a picosecond Nd:YAG laser on a germanium Brewster-plate to produce an ~200 ps, 10μm pulse by semiconductor optical switching. Co-propagating this pulse with a Nd:YAG's 2nd harmonic in a

88

Infrared laser system  

DOE Patents (OSTI)

An infrared laser system and method for isotope separation may comprise a molecular gas laser oscillator to produce a laser beam at a first wavelength, Raman spin flip means for shifting the laser to a second wavelength, a molecular gas laser amplifier to amplify said second wavelength laser beam to high power, and optical means for directing the second wavelength, high power laser beam against a desired isotope for selective excitation thereof in a mixture with other isotopes. The optical means may include a medium which shifts the second wavelength high power laser beam to a third wavelength, high power laser beam at a wavelength coincidental with a corresponding vibrational state of said isotope and which is different from vibrational states of other isotopes in the gas mixture.

Cantrell, Cyrus D. (Santa Fe, NM); Carbone, Robert J. (Los Alamos, NM); Cooper, Ralph S. (Los Alamos, NM)

1977-01-01T23:59:59.000Z

89

Infrared laser system  

DOE Patents (OSTI)

An infrared laser system and method for isotope separation may comprise a molecular gas laser oscillator to produce a laser beam at a first wavelength, Raman spin flip means for shifting the laser to a second wavelength, a molecular gas laser amplifier to amplify said second wavelength laser beam to high power, and optical means for directing the second wavelength, high power laser beam against a desired isotope for selective excitation thereof in a mixture with other isotopes. The optical means may include a medium which shifts the second wavelength high power laser beam to a third wavelength, high power laser beam at a wavelength coincidental with a corresponding vibrational state of said isotope and which is different from vibrational states of other isotopes in the gas mixture.

Cantrell, Cyrus D. (Richardson, TX); Carbone, Robert J. (Johnson City, TN); Cooper, Ralph (Hayward, CA)

1982-01-01T23:59:59.000Z

90

Laser Drilling with Gated High Power Fiber Lasers  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2010. Symposium, Laser Applications in Materials Processing. Presentation Title, Laser Drilling...

91

Laser Wakefield Acceleration Experiments Using HERCULES Laser  

Science Conference Proceedings (OSTI)

Laser wakefield acceleration (LWFA) in a supersonic gas-jet using a self-guided laser pulse was studied by changing laser power and plasma electron density. The recently upgraded HERCULES laser facility equipped with wavefront correction enables a peak intensity of 6.1x10{sup 19} W/cm{sup 2} at laser power of 80 TW to be delivered to the gas-jet using F/10 focusing optics. We found that electron beam charge was increased significantly with an increase of laser power from 30 TW to 80 TW and showed density threshold behavior at a fixed laser power. We also studied the influence of laser focusing conditions by changing the f-number of the optics to F/15 and found an increase in density threshold for electron production compared to the F/10 configuration. The analysis of different phenomena such as betatron motion of electrons, side scattering of the laser pulse for different focusing conditions, the influence of plasma density down ramp on LWFA are shown.

Matsuoka, T.; McGuffey, C.; Dollar, F.; Bulanov, S. S.; Chvykov, V.; Kalintchenko, G.; Rousseau, P.; Yanovsky, V.; Maksimchuk, A.; Krushelnick, K. [Center for Ultrafast Optical Science and FOCUS Center, University of Michigan, Ann Arbor, MI 48109 (United States); Horovitz, Y. [Center for Ultrafast Optical Science and FOCUS Center, University of Michigan, Ann Arbor, MI 48109 (United States); Dynamical Experiments Group, Propulsion Division, Soreq NRC, Yavnee 81800 (Israel)

2009-07-25T23:59:59.000Z

92

NIST Laser Applications Staff Directory  

Science Conference Proceedings (OSTI)

Laser Applications Staff Directory. Staff. Name, Position, Office Phone. ... Contact. Laser Applications Group Keith Lykke, Group Leader. ...

2012-11-26T23:59:59.000Z

93

Laser induced chemical reactions  

E-Print Network (OSTI)

of Basic Energy Sciences, Chemical Sciences Division of theINFRARED LASER ENHANCEMENT OF CHEMICAL REACTIONS A. B. C. D.Laser Inhibition of Chemical Reaction Effect of Isotopic

Orel, Ann E.

2010-01-01T23:59:59.000Z

94

Atmospheric Laser Communication  

Science Conference Proceedings (OSTI)

Atmospheric laser communication, often referred to as free-space optics (FSO) or free-space laser (FSL) communication, is similar to fiber optic cable in terms of carrier wavelength and bandwidth capability, but data are transmitted directly ...

Kenneth W. Fischer*Michael R. Witiw; Jeffrey A. Baars+; T. R. Oke

2004-05-01T23:59:59.000Z

95

General Laser Measurements  

Science Conference Proceedings (OSTI)

General Measurements for Laser Meters. ... 90 to 0 dBm. 0 to 30 dBm. AO 2005, Igor Vayshenker. Laser Dose, 193 nm, SP250-56, David Livigni. ...

2012-11-28T23:59:59.000Z

96

Laser particle sorter  

DOE Patents (OSTI)

Method and apparatus are provided for sorting particles, such as biological particles. A first laser is used to define an optical path having an intensity gradient which is effective to propel the particles along the path but which is sufficiently weak that the particles are not trapped in an axial direction. A probe laser beam is provided for interrogating the particles to identify predetermined phenotypical characteristics of the particles. A second laser beam is provided to intersect the driving first laser beam, wherein the second laser beam is activated by an output signal indicative of a predetermined characteristic. The second laser beam is switchable between a first intensity and a second intensity, where the first intensity is effective to displace selected particles from the driving laser beam and the second intensity is effective to propel selected particles along the deflection laser beam. The selected particles may then be propelled by the deflection beam to a location effective for further analysis. 2 figs.

Martin, J.C.; Buican, T.N.

1987-11-30T23:59:59.000Z

97

Laser programs highlights 1993  

SciTech Connect

Over the last two decades, the scope of our laser research has grown immensely. The small, low-power laser systems of our early days have given way to laser systems of record-breaking size and power. Now we are focusing our activities within the target physics and laser science programs to support the ignition and gain goals of the proposed glass-laser National Ignition Facility. In our laser isotope separation work, we completed the most important set of experiments in the history of the AVLIS Program in 1993, which culminated in a spectacularly successful run that met or exceeded all our objectives. We are also developing lasers and laser-related technologies for a variety of energy, commercial, and defense uses. On the horizon are transfers of important technologies for waste treatment, x-ray lithography, communications and security, optical imaging, and remote sensing, among others.

NONE

1995-06-01T23:59:59.000Z

98

FREE-ELECTRON LASERS  

E-Print Network (OSTI)

1977. First Operation of a Free-Electron Laser. Phys . __Radiation from a High-Gain Free-Electeon Lasee Amplifier. ~1984. Variable-Wiggler Free-Electron-Laser Oscillat.ion.

Sessler, A.M.

2008-01-01T23:59:59.000Z

99

Laser preheat enhanced ignition  

DOE Patents (OSTI)

A method for enhancing fuel ignition performance by preheating the fuel with laser light at a wavelength that is absorbable by the fuel prior to ignition with a second laser is provided.

Early, James W. (Los Alamos, NM)

1999-01-01T23:59:59.000Z

100

Direct nuclear pumped laser  

DOE Patents (OSTI)

There is provided a direct nuclear pumped gas laser in which the lasing mechanism is collisional radiated recombination of ions. The gas laser active medium is a mixture of the gases, with one example being neon and nitrogen.

Miley, George H. (Champagne, IL); Wells, William E. (Urbana, IL); DeYoung, Russell J. (Hampton, VA)

1978-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Laser Safety Communiques  

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

Argonne National Laboratory, July 17-19, 2007 Registration Form Workshop Agenda DOE Laser Safety Memo and Final Report, February 28, 2005 APS Laser OJT ANL CHM OJT Example...

102

Laser Technology and Applications  

Science Conference Proceedings (OSTI)

... Major advances have been made in some areas: ? Specimen preparation using FIB ? Data collection rate ? Laser-assisted field evaporation ...

2013-04-03T23:59:59.000Z

103

Laser Measurements Seminar  

Science Conference Proceedings (OSTI)

Laser Measurements Seminar. June 16, 2005. *. Bookmark and Share. Contact: Michael Baum 301-975-2763. The 20th annual ...

2013-04-23T23:59:59.000Z

104

YAG Laser Weld  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2010. Symposium, Laser Applications in Materials Processing. Presentation Title, The Effects of...

105

Laser Heat Treatment [Laser Applications Laboratory] - Nuclear Engineering  

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

Heat Treatment Heat Treatment Capabilities Engineering Experimentation Reactor Safety Experimentation Aerosol Experiments System Components Laser Applications Overview Laser Oil & Gas Well Drilling Laser Heat Treatment Laser Welding of Metals On-line Monitoring Laser Beam Delivery Laser Glazing of Railroad Rails High Power Laser Beam Delivery Decontamination and Decommissioning Refractory Alloy Welding Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Laser Applications Laboratory Laser Heat Treatment Project description: Optimization of laser beam heat treatment. Category: Project with industrial partner (Caterpillar and USCAR) Bookmark and Share Heat treatment optics

106

LaserFest Celebration  

SciTech Connect

LaserFest was the yearlong celebration, during 2010, of the 50th anniversary of the demonstration of the first working laser. The goals of LaserFest were: to highlight the impact of the laser in its manifold commercial, industrial and medical applications, and as a tool for ongoing scientific research; to use the laser as one example that illustrates, more generally, the route from scientific innovation to technological application; to use the laser as a vehicle for outreach, to stimulate interest among students and the public in aspects of physical science; to recognize and honor the pioneers who developed the laser and its many applications; to increase awareness among policymakers of the importance of R&D funding as evidenced by such technology as lasers. One way in which LaserFest sought to meet its goals was to encourage relevant activities at a local level all across the country -- and also abroad -- that would be identified with the larger purposes of the celebration and would carry the LaserFest name. Organizers were encouraged to record and advertise these events through a continually updated web-based calendar. Four projects were explicitly detailed in the proposals: 1) LaserFest on the Road; 2) Videos; 3) Educational material; and 4) Laser Days.

Dr. Alan Chodos; Elizabeth A. Rogan

2011-08-25T23:59:59.000Z

107

Emerging M&S application in risk management  

Science Conference Proceedings (OSTI)

There has been compelling signs of the great potential of building further synergy with academics, researchers, and industry practitioners from the areas of Modeling and Simulation (M&S) managing risk events. This paper provides an introduction to risk ... Keywords: engineering management, risk analysis, risk assessment, risk management, systems engineering

C. Ariel Pinto; Andreas Tolk; Michael McShane

2011-04-01T23:59:59.000Z

108

Office of Student Services Health Science Campus MS 1026  

E-Print Network (OSTI)

Office of Student Services Health Science Campus MS 1026 Collier Building 4405 3000 Arlington Avenue Toledo, OH 43614-2598 419-383-5810 BSN Consortium Planning Guide Bowling Green State University College of Health & Human Services Nursing Advisor - Health Center Rm. 102 Bowling Green, OH 43403 419

Moore, Paul A.

109

(WPI-iCeMS) Pure Nano Drugs*  

E-Print Network (OSTI)

(WPI-iCeMS) SN-38 50 nm * Pure Nano Drugs* SN-38 10 HepG2* JST (-STEP Permeation and Retention (EPR)* EPR 20100 nm SN-38 SN-38 * SN-38 * SN-38 20 SN-38 Pure Nano Drugs

Takada, Shoji

110

SPE-163690-MS Synthetic, Geomechanical Logs for Marcellus Shale  

E-Print Network (OSTI)

SPE-163690-MS Synthetic, Geomechanical Logs for Marcellus Shale M. O. Eshkalak, SPE, S. D of hydrocarbons from the reservoirs, notably shale, is attributed to realizing the key fundamentals of reservoir and mineralogy is crucial in order to identify the "right" pay-zone intervals for shale gas production. Also

Mohaghegh, Shahab

111

BNL | ATF Laser Safety  

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

ATF Laser Safety ATF Laser Safety To be present in a secured laser area at ATF, a person must either have the required laser training, or be continuously escorted by someone who has such training: The training consists of an eye exam, BNL general laser safety lecture, and formal ATF laser familiarization. Untrained personnel should not be instructed to enter interlocked areas or be escorted into an area and left unattended. If someone without training must enter a secured area, they must be continuously escorted, and are considered spectators, which means they may not perform any work in the area. At ATF, there are 3 classes of personnel authorized to enter secured areas: Experimental operators may secure areas, perform approved experiments with beams from facility lasers (YAG + CO2) or FEL beams, and

112

ORION laser target diagnostics  

SciTech Connect

The ORION laser facility is one of the UK's premier laser facilities which became operational at AWE in 2010. Its primary mission is one of stockpile stewardship, ORION will extend the UK's experimental plasma physics capability to the high temperature, high density regime relevant to Atomic Weapons Establishment's (AWE) program. The ORION laser combines ten laser beams operating in the ns regime with two sub ps short pulse chirped pulse amplification beams. This gives the UK a unique combined long pulse/short pulse laser capability which is not only available to AWE personnel but also gives access to our international partners and visiting UK academia. The ORION laser facility is equipped with a comprehensive suite of some 45 diagnostics covering optical, particle, and x-ray diagnostics all able to image the laser target interaction point. This paper focuses on a small selection of these diagnostics.

Bentley, C. D.; Edwards, R. D.; Andrew, J. E.; James, S. F.; Gardner, M. D.; Comley, A. J.; Vaughan, K.; Horsfield, C. J.; Rubery, M. S.; Rothman, S. D.; Daykin, S.; Masoero, S. J.; Palmer, J. B.; Meadowcroft, A. L.; Williams, B. M.; Gumbrell, E. T.; Fyrth, J. D.; Brown, C. R. D.; Hill, M. P.; Oades, K. [Plasma Physics Department, Atomic Weapons Establishment, Aldermaston, Reading, Berkshire RG7 4PR (United Kingdom); and others

2012-10-15T23:59:59.000Z

113

Laser system using ultra-short laser pulses  

DOE Patents (OSTI)

A laser system using ultrashort laser pulses is provided. In another aspect of the present invention, the system includes a laser, pulse shaper and detection device. A further aspect of the present invention employs a femtosecond laser and binary pulse shaping (BPS). Still another aspect of the present invention uses a laser beam pulse, a pulse shaper and a SHG crystal.

Dantus, Marcos (Okemos, MI); Lozovoy, Vadim V. (Okemos, MI); Comstock, Matthew (Milford, MI)

2009-10-27T23:59:59.000Z

114

Ultrafast electron beam imaging of femtosecond laser-induced plasma  

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

Ultrafast electron beam imaging of femtosecond laser-induced plasma Ultrafast electron beam imaging of femtosecond laser-induced plasma dynamics Title Ultrafast electron beam imaging of femtosecond laser-induced plasma dynamics Publication Type Journal Article Year of Publication 2010 Authors Li, Junjie, Xuan Wang, Zhaoyang Chen, Richard Clinite, Samuel S. Mao, Pengfei Zhu, Zhengming Sheng, Jie Zhang, and Jianming Cao Journal Journal of Applied Physics Volume 107 Issue 8 Date Published 03/2010 Keywords copper, electron beam applications, high-speed optical techniques, laser ablation, plasma diagnostics, plasma production by laser Abstract Plasma dynamics in the early stage of laser ablation of a copper target are investigated in real time by making ultrafast electron shadow images and electron deflectometry measurements. These complementary techniques provide both a global view and a local perspective of the associated transient electric field and charge expansion dynamics. The results reveal that the charge cloud above the target surface is composed predominantly of thermally ejected electrons and that it is self-expanding, with a fast front-layer speed exceeding 107 m/s. The average electric field strength of the charge cloud induced by a pump fluence of 2.2 J/cm2 is estimated to be ∼ 2.4×105 V/m.

115

Measurement and Evaluation of Ultra-fine Particle Emissions from Laser  

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

Measurement and Evaluation of Ultra-fine Particle Emissions from Laser Measurement and Evaluation of Ultra-fine Particle Emissions from Laser Printers Speaker(s): Tunga Salthammer Date: October 9, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Hugo Destaillats Several publications have recently appeared which describe the release of ultra-fine particles (UFPs) from hardcopy devices not only in chamber tests but also under real room conditions. Due to assumed health impacts attributed to UFPs this subject currently receives substantial public attention. For the characterization of emitted UFPs from laser printers, different test methods (box chamber tests, flow chamber tests, furnace tests) and analytical techniques (SMPS, FMPS, VHTDMA, GC/MS, Headspace/MS, thermography, etc...) were applied. It could be shown that the release of

116

Microsoft Word - MS-OM-1185NEPAHeatExchanger.docx  

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

MS-OM-1185 MS-OM-1185 Title: Hydrogen Peroxide Treatment of SPR Heat Exchangers BOA Description: Subcontractor shall provide all labor, supervision, materials, supplies, equipment, tools, and transportation required to treat the water side of the SPR heat exchangers. Work includes providing turnkey chemical injection equipment, chemical (hydrogen peroxide), chemical containment vessels, and fittings/piping/tubing required to connect the chemical injection equipment to the site heat exchangers. Subcontractor shall remove and clean all equipment and properly dispose of any waste materials after the work is completed. Regulatory Requirements: NEPA Implementing Procedures (10 CFR 1021) 10 CFR 1021.410 (Application of Categorical Exclusions) (a) The actions listed in Appendices A and B of Subpart D are classes of actions that DOE has determined do

117

CONCURRENC RTG. SYMBOL GC-34 Ms. Mary Beth Brado  

Office of Legacy Management (LM)

MAY 2 9 1980 MAY 2 9 1980 CONCURRENC RTG. SYMBOL GC-34 Ms. Mary Beth Brado "*N'W Town of Lewiston * i..,! 1375 Ridge Road ^r'8 Lewiston, New York 14092 RTG.SYuBOL Dear Ms. Brado: .- ,l13. INirIA Lss iQ. W'Mott This is in response to your letter of January 29, 1980, and subsequent ..... ,. telephone discussions with irr. Brazley of my office, concerning land use 5/ /8 restrictions on the 1,511 acres declared surplus in the Towns of Lewiston RGSYMOL. and Porter, New York. In regard to your question of land use restriction and its application to the surplus land in the Lewiston area, our Office of General Counsel deter- DATE'- mined that the Department of Energy does not have the authority to restrict any land use or development of the property in question. Such authority nrTG SYMOL

118

Microsoft Word - MS-OM-1005 NEPA.docx  

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

MS-OM-1005 MS-OM-1005 Title: FY 2012 Annual Site Subsidence Surveys Description: Subcontractor shall provide all labor, supervision, materials, equipment, transportation, and services necessary to perform a subsidence survey of the Bayou Choctaw, Big Hill, Bryan Mound and West Hackberry SPR sites. Regulatory Requirements: NEPA Implementing Procedures (10 CFR 1021) 10 CFR 1021.410 (Application of Categorical Exclusions) (a) The actions listed in Appendices A and B of Subpart D are classes of actions that DOE has determined do not individually or cumulatively have a significant effect on the human environment (categorical exclusions). (b) To find that a proposal is categorically excluded, DOE shall determine the following: (1) The proposed action fits within a class of actions that is listed in Appendix A or B of Subpart D;

119

Commander, Naval Base ATTN: Ms. Cheryl Barnett Building N-26  

Office of Legacy Management (LM)

.J>?j 1.2 1990 .J>?j 1.2 1990 Commander, Naval Base ATTN: Ms. Cheryl Barnett Building N-26 Code N 9 E Norfolk, Virginia 23511-6002 Dear Ms. Barnett: I enjoyed speaking with you on the phone. The Department of Energy (DOE) has established its Formerly Utilized Sites Remedial Action Program (FUSRAP) to identify sites formerly utilized by its predecessor agencies in the early days of the nation's atomic energy program and to determine the potential for these sites to contain radiological contamination, related to DOE's past activities, which may require remedial action. When necessary, radiological surveys of individual sites are performed to provide the data necessary to make this necessary determination. As we discussed, in July 1956, the Atomic Energy Commission (a DOE

120

Ms. Katharine Kaplan ENERGY STAR Product Development USEPA Headquarters  

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

7, 2010 7, 2010 Ms. Katharine Kaplan ENERGY STAR Product Development USEPA Headquarters 1200 Pennsylvania Avenue, NW (6202J) Washington , DC 20460 Dear Ms. Kaplan: On May 7, 2010, the United States Department of Energy (DOE) notified ASKO Appliances, Inc. that DOE had tested ASKO dishwasher model D5122XXLB as part of the ENERGY STAR Verification Testing Pilot Program , and that, according to DOE's testing, this model exceeded allowable ENERGY STAR efficiency requirements by 12 percent. DOE gave ASKO until May 17, 2010 to request additional testing or have this matter referred to the United States Environmental Protection Agency (EPA). ASKO has not requested testing of additional units by the DOE deadline. On May 12, ASKO sent an email to DOE disputing DOE's testing and providing their own test reports for the model

Note: This page contains sample records for the topic "laser ms bransby" 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

Ms. Kimberly Krizanovic U.S. Department of Energy  

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

0, 2012 0, 2012 Ms. Kimberly Krizanovic U.S. Department of Energy Office of the Chief Financial Officer 4 th Floor, Suite 4A-236 1000 Independence Avenue Washington, DC 20585 Dear Ms. Krizanovic: The American Institute of Certified Public Accountants (AICPA) is the national, professional association of CPAs, with 369,000 CPA members worldwide in business and industry, public practice, government, education, student affiliates and international associates. It sets ethical standards for the profession and U.S. auditing standards for audits of private companies, nonprofit organizations, federal, state, and local governments. It also develops and grades the Uniform CPA Examination. On behalf of the AICPA and its Governmental Audit Quality Center, we appreciate the

122

Method for factor analysis of GC/MS data  

Science Conference Proceedings (OSTI)

The method of the present invention provides a fast, robust, and automated multivariate statistical analysis of gas chromatography/mass spectroscopy (GC/MS) data sets. The method can involve systematic elimination of undesired, saturated peak masses to yield data that follow a linear, additive model. The cleaned data can then be subjected to a combination of PCA and orthogonal factor rotation followed by refinement with MCR-ALS to yield highly interpretable results.

Van Benthem, Mark H; Kotula, Paul G; Keenan, Michael R

2012-09-11T23:59:59.000Z

123

Laser-PlasmaWakefield Acceleration with Higher Order Laser Modes  

E-Print Network (OSTI)

Design considerations for a laser-plasma linear collider,"E.Esarey, and W.P.Leemans, "Free-electron laser driven bythe LBNL laser-plasma accelerator," in Proc. Adv. Acc. Con.

Geddes, C.G.R.

2011-01-01T23:59:59.000Z

124

Synthetic laser medium  

DOE Patents (OSTI)

A laser medium is particularly useful in high average power solid state lasers. The laser medium includes a chromium dopant and preferably neodymium ions as codopant, and is primarily a gadolinium scandium gallium garnet, or an analog thereof. Divalent cations inhibit spiral morphology as large boules from which the laser medium is derived are grown, and a source of ions convertible between a trivalent state and a tetravalent state at a low ionization energy are in the laser medium to reduce an absorption coefficient at about one micron wavelength otherwise caused by the divalent cations. These divalent cations and convertible ions are dispersed in the laser medium. Preferred convertible ions are provided from titanium or cerium sources.

Stokowski, S.E.

1987-10-20T23:59:59.000Z

125

LCLS Injector Drive Laser  

SciTech Connect

Requirements for the LCLS injector drive laser present significant challenges to the design of the system. While progress has been demonstrated in spatial shape, temporal shape, UV generation and rep-rate, a laser that meets all of the LCLS specifications simultaneously has yet to be demonstrated. These challenges are compounded by the stability and reliability requirements. The drive laser and transport system has been installed and tested. We will report on the current operational state of the laser and plans for future improvements.

Dowell, D.H.; Castro, J.; Emma, P.; Frisch, J.; Gilevich, A.; Hays, G.; Hering, P.; Limborg-Deprey, C.; Loos, H.; Miahnahri, A.; White, W.; /SLAC

2007-11-02T23:59:59.000Z

126

Fusion reactor pumped laser  

DOE Patents (OSTI)

A nuclear pumped laser capable of producing long pulses of very high power laser radiation is provided. A toroidal fusion reactor provides energetic neutrons which are slowed down by a moderator. The moderated neutrons are converted to energetic particles capable of pumping a lasing medium. The lasing medium is housed in an annular cell surrounding the reactor. The cell includes an annular reflecting mirror at the bottom and an annular output window at the top. A neutron reflector is disposed around the cell to reflect escaping neutrons back into the cell. The laser radiation from the annular window is focused onto a beam compactor which generates a single coherent output laser beam.

Jassby, Daniel L. (Princeton, NJ)

1988-01-01T23:59:59.000Z

127

NIST Laser Safety Program  

Science Conference Proceedings (OSTI)

... powered down. 5. Close coolant valves, if chilled water is used; visually check for leaks. 6. Turn off the laser warning light.

2011-09-06T23:59:59.000Z

128

Robot Assisted Laser Osteotomy.  

E-Print Network (OSTI)

??In the scope of this thesis world's first robot system was developed, which facilitates osteotomy using laser in arbitrary geometries with an overall accuracy below (more)

Burgner, Jessica

2010-01-01T23:59:59.000Z

129

Laser Induced Spectroscopy  

INLs Laser Induced Spectroscopy technology detects and measures the composition of a material or the molecules in the material. It traces the ...

130

Electron acceleration & laser pulse compression using a laser...  

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

acceleration & laser pulse compression using a laser-plasma accelerator Wednesday, August 14, 2013 - 3:00pm SLAC, Redtail Hawk Conference Room 108A Andreas Walker, Oxford...

131

Laser Program annual report 1987  

SciTech Connect

This report discusses the following topics: target design and experiments; target materials development; laboratory x-ray lasers; laser science and technology; high-average-power solid state lasers; and ICF applications studies.

O'Neal, E.M.; Murphy, P.W.; Canada, J.A.; Kirvel, R.D.; Peck, T.; Price, M.E.; Prono, J.K.; Reid, S.G.; Wallerstein, L.; Wright, T.W. (eds.)

1989-07-01T23:59:59.000Z

132

BNL | Nd:YAG Laser  

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

Nd:YAG Laser The Nd:YAG laser is located in a class 1000 clean room (the YAG Room) near the electron gun end of the ATF accelerator. The clean area also includes a separate laser...

133

BNL | CFN Laser System Qualifications  

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

System Qualification There are multiple laser systems at the CFN. Users who will work with the following class 3b or 4 laser systems are required to complete the Laser Safety...

134

Automated Dispersive Solid Phase Extraction of Pesticide Residues in Botanicals using Triple Quadrupole LC/MS/MS  

E-Print Network (OSTI)

in 12.5 min; hold for 3 min MS conditions Drying gas temp: 225°C Sheath gas temp: 325°C Gas flow rate: 8 L/min Sheath gas flow: 10 L/min Nebulizer pressure: 40 psi EMV: 400 V Capillary voltage: 4000 V was then centrifuged at 5,000 x rpm for 3min ·Acetonitrile (1 ml) extract was transferred to a 2 ml auto-sampler vial

Heller, Barbara

135

Laser Power and Energy Calibrations  

Science Conference Proceedings (OSTI)

... calibration services for meters used with the lasers, wavelengths, and power ranges shown in the following table. Other laser wavelengths, power ...

2012-11-28T23:59:59.000Z

136

Laser Ablation: Fundamentals and Applications  

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

90 This seminar will include both experimental and theoretical topics of ultrafast laser ablation. In the first part, fundamental physics of ultrafast laser-material...

137

Laser ultrasonics on moving paper  

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

Laser ultrasonics on moving paper Title Laser ultrasonics on moving paper Publication Type Journal Article LBNL Report Number LBNL-43615 Year of Publication 1999 Authors Ridgway,...

138

Laser beam generating apparatus  

DOE Patents (OSTI)

Laser beam generating apparatus including a septum segment disposed longitudinally within the tubular structure of the apparatus. The septum provides for radiatively dissipating heat buildup within the tubular structure and for generating relatively uniform laser beam pulses so as to minimize or eliminate radial pulse delays (the chevron effect). 11 figures.

Warner, B.E.; Duncan, D.B.

1993-12-28T23:59:59.000Z

139

Laser beam generating apparatus  

DOE Patents (OSTI)

Laser beam generating apparatus including a septum segment disposed longitudinally within the tubular structure of the apparatus. The septum provides for radiatively dissipating heat buildup within the tubular structure and for generating relatively uniform laser beam pulses so as to minimize or eliminate radial pulse delays (the chevron effect).

Warner, Bruce E. (Livermore, CA); Duncan, David B. (Auburn, CA)

1994-01-01T23:59:59.000Z

140

Laser beam generating apparatus  

DOE Patents (OSTI)

Laser beam generating apparatus including a septum segment disposed longitudinally within the tubular structure of the apparatus is described. The septum provides for radiatively dissipating heat buildup within the tubular structure and for generating relatively uniform laser beam pulses so as to minimize or eliminate radial pulse delays (the chevron effect). 7 figures.

Warner, B.E.; Duncan, D.B.

1994-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Laser beam generating apparatus  

DOE Patents (OSTI)

Laser beam generating apparatus including a septum segment disposed longitudinally within the tubular structure of the apparatus. The septum provides for radiatively dissipating heat buildup within the tubular structure and for generating relatively uniform laser beam pulses so as to minimize or eliminate radial pulse delays (the chevron effect).

Warner, Bruce E. (Livermore, CA); Duncan, David B. (Auburn, CA)

1993-01-01T23:59:59.000Z

142

Dye laser amplifier  

DOE Patents (OSTI)

An improved dye laser amplifier is disclosed. The efficiency of the dye laser amplifier is increased significantly by increasing the power of a dye beam as it passes from an input window to an output window within the dye chamber, while maintaining the intensity of the dye beam constant. 3 figs.

Moses, E.I.

1992-12-01T23:59:59.000Z

143

Coaxial short pulsed laser  

DOE Patents (OSTI)

This invention relates to a laser system of rugged design suitable for use in a field environment. The laser itself is of coaxial design with a solid potting material filling the space between components. A reservoir is employed to provide a gas lasing medium between an electrode pair, each of which is connected to one of the coaxial conductors. (auth)

Nelson, M.A.; Davies, T.J.

1975-08-01T23:59:59.000Z

144

Explosively pumped laser light  

DOE Patents (OSTI)

A single shot laser pumped by detonation of an explosive in a shell casing. The shock wave from detonation of the explosive causes a rare gas to luminesce. The high intensity light from the gas enters a lasing medium, which thereafter outputs a pulse of laser light to disable optical sensors and personnel.

Piltch, Martin S. (Los Alamos, NM); Michelotti, Roy A. (Los Alamos, NM)

1991-01-01T23:59:59.000Z

145

Liquid heat capacity lasers  

DOE Patents (OSTI)

The heat capacity laser concept is extended to systems in which the heat capacity lasing media is a liquid. The laser active liquid is circulated from a reservoir (where the bulk of the media and hence waste heat resides) through a channel so configured for both optical pumping of the media for gain and for light amplification from the resulting gain.

Comaskey, Brian J. (Walnut Creek, CA); Scheibner, Karl F. (Tracy, CA); Ault, Earl R. (Livermore, CA)

2007-05-01T23:59:59.000Z

146

Lipid Analysis and Lipidomics: New Techniques & ApplicationChapter 4 LC/MS and Chiral Separation  

Science Conference Proceedings (OSTI)

Lipid Analysis and Lipidomics: New Techniques & Application Chapter 4 LC/MS and Chiral Separation Methods and Analyses eChapters Methods - Analyses Books AOCS Press Downloadable pdf of Chapter 4 LC/MS and Chiral S

147

Lipid Analysis and Lipidomics: New Techniques & ApplicationChapter 5 LC/MS and Lipid Oxidation  

Science Conference Proceedings (OSTI)

Lipid Analysis and Lipidomics: New Techniques & Application Chapter 5 LC/MS and Lipid Oxidation Methods and Analyses eChapters Methods - Analyses Books Downloadable pdf of Chapter 5 LC/MS and Lipid Oxidation from

148

Sensitive Femtogram Determination of Aflatoxins B1, B2, G1, and G2 in Food Matrices using Tandem LC-MS/MS  

E-Print Network (OSTI)

(%) 0 95 5 5 0 100 6 0 100 MS conditions Drying gas temp: 325°C Sheath gas temp: 350°C Gas flow rate: 10 L/min Sheath gas flow: 11 L/min Nebulizer pressure: 50 psi EMV: 400 V Capillary voltage: 4000 V sample was then centrifuged at 14,000 x g for 3min prior to LC-MS/MS analysis. ·Each food matrix

Heller, Barbara

149

Laser controlled flame stabilization  

DOE Patents (OSTI)

A method and apparatus is provided for initiating and stabilizing fuel combustion in applications such as gas turbine electrical power generating engines and jet turbine engines where it is desired to burn lean fuel/air mixtures which produce lower amounts of NO.sub.x. A laser induced spark is propagated at a distance from the fuel nozzle with the laser ignitor being remotely located from the high temperature environment of the combustion chamber. A laser initiating spark generated by focusing high peak power laser light to a sufficiently tight laser spot within the fuel to cause the ionization of air and fuel into a plasma is unobtrusive to the flow dynamics of the combustion chamber of a fuel injector, thereby facilitating whatever advantage can be taken of flow dynamics in the design of the fuel injector.

Early, James W. (Los Alamos, NM); Thomas, Matthew E. (Huntsville, AL)

2001-01-01T23:59:59.000Z

150

Guest Editorial: Laser Damage  

SciTech Connect

Laser damage of optical materials, first reported in 1964, continues to limit the output energy and power of pulsed and continuous-wave laser systems. In spite of some 48 years of research in this area, interest from the international laser community to laser damage issues remains at a very high level and does not show any sign of decreasing. Moreover, it grows with the development of novel laser systems, for example, ultrafast and short-wavelength lasers that involve new damage effects and specific mechanisms not studied before. This interest is evident from the high level of attendance and presentations at the annual SPIE Laser Damage Symposium (aka, Boulder Damage Symposium) that has been held in Boulder, Colorado, since 1969. This special section of Optical Engineering is the first one devoted to the entire field of laser damage rather than to a specific part. It is prepared in response to growing interest from the international laser-damage community. Some papers in this special section were presented at the Laser Damage Symposium; others were submitted in response to the general call for papers for this special section. The 18 papers compiled into this special section represent many sides of the broad field of laser-damage research. They consider theoretical studies of the fundamental mechanisms of laser damage including laser-driven electron dynamics in solids (O. Brenk and B. Rethfeld; A. Nikiforov, A. Epifanov, and S. Garnov; T. Apostolova et al.), modeling of propagation effects for ultrashort high-intensity laser pulses (J. Gulley), an overview of mechanisms of inclusion-induced damage (M. Koldunov and A. Manenkov), the formation of specific periodic ripples on a metal surface by femtosecond laser pulses (M. Ahsan and M. Lee), and the laser-plasma effects on damage in glass (Y. Li et al). Material characterization is represented by the papers devoted to accurate and reliable measurements of absorption with special emphasis on thin films (C. Mhlig and S. Bublitz; B. Cho, E. Danielewicz, and J. Rudisill; W. Palm et al; and J. Lu et al.). Statistical treatment of measurements of the laser-damage threshold (J. Arenberg) and the relationship to damage mechanisms (F. Wagner et al.) represent the large subfield of laser-damage measurements. Various aspects of multilayer coating and thin-film characterization are considered in papers by B. Cho, J. Rudisill, and E. Danielewicz (spectral shift in multilayer mirrors) and R. Weber et al. (novel approach to damage studies based on third-harmonic generation microscopy). Of special interest for readers is the paper by C. Stolz that summarizes the results of four thin-film damage competitions organized as a part of the Laser Damage Symposium. Another paper is devoted to thermal annealing of damage precursors (N. Shen et al.). Finally, the influence of nano-size contamination on initiation of laser damage by ultrashort pulses is considered in paper of V. Komolov et al.

Vitaly Gruzdev, Michelle D. Shinn

2012-12-01T23:59:59.000Z

151

Laser dividing apparatus  

DOE Patents (OSTI)

A laser beam dividing apparatus (10) having a first beam splitter (14) with an aperture (16) therein positioned in the path of a laser beam (12) such that a portion of the laser beam (12) passes through the aperture (16) onto a second beam splitter (20) and a portion of the laser beam (12) impinges upon the first beam splitter (14). Both the first beam splitter (14) and the second beam splitter (20) are, optionally, made from a dichroic material such that a green component (24) of the laser beam (12) is reflected therefrom and a yellow component (26) is refracted therethrough. The first beam splitter (14) and the second beam splitter (20) further each have a plurality of facets (22) such that the components (24, 26) are reflected and refracted in a number equaling the number of facets (22).

English, Jr., R. Edward (Tracy, CA); Johnson, Steve A. (Tracy, CA)

1995-01-01T23:59:59.000Z

152

Catalac free electron laser  

DOE Patents (OSTI)

A catalac free electron laser using a rf linac (catalac) which acts as a catalyst to accelerate an electron beam in an initial pass through the catalac and decelerate the electron beam during a second pass through the catalac is described. During the second pass through the catalac, energy is extracted from the electron beam and transformed to energy of the accelerating fields of the catalac to increase efficiency of the device. Various embodiments disclose the use of post linacs to add electron beam energy extracted by the wiggler and the use of supplementary catalacs to extract energy at various energy peaks produced by the free electron laser wiggler to further enhance efficiency of the catalac free electron laser. The catalac free electron laser can be used in conjunction with a simple resonator, a ring resonator, or as an amplifier in conjunction with a master oscillator laser.

Brau, C.A.; Swenson, D.A.; Boyd, T.J. Jr.

1979-12-12T23:59:59.000Z

153

Catalac free electron laser  

DOE Patents (OSTI)

A catalac free electron laser using a rf linac (catalac) which acts as a catalyst to accelerate an electron beam in an initial pass through the catalac and decelerate the electron beam during a second pass through the catalac. During the second pass through the catalac, energy is extracted from the electron beam and transformed to energy of the accelerating fields of the catalac to increase efficiency of the device. Various embodiments disclose the use of post linacs to add electron beam energy extracted by the wiggler and the use of supplementary catalacs to extract energy at various energy peaks produced by the free electron laser wiggler to further enhance efficiency of the catalac free electron laser. The catalac free electron laser can be used in conjunction with a simple resonator, a ring resonator or as an amplifier in conjunction with a master oscillator laser.

Brau, Charles A. (Los Alamos, NM); Swenson, Donald A. (Los Alamos, NM); Boyd, Jr., Thomas J. (Los Alamos, NM)

1982-01-01T23:59:59.000Z

154

Genizah MS T-S AS 145.39  

E-Print Network (OSTI)

*k T-S AS 145.39 *t Legal document *s 15.3 x 15.5 (7.7 one leaf); 4-15 lines (1v and 2r blank) *m Paper; 2 leaves (bifolium); slightly torn, holes, rubbed, stained *l Judaeo-Arabic; Hebrew; Arabic *c Testimony concerning an oath; mentions M?s? ibn... H?r?n al-?m? and Faraj Allah ibn Joseph ibn F??il. *e 4 lines on f. 2v written transversely in f. 1r....

Unknown

2011-02-25T23:59:59.000Z

155

Free electron laser designs for laser amplification  

DOE Patents (OSTI)

Method for laser beam amplification by means of free electron laser techniques. With wiggler magnetic field strength B.sub.w and wavelength .lambda..sub.w =2.pi./k.sub.w regarded as variable parameters, the method(s) impose conditions such as substantial constancy of B.sub.w /k.sub.w or k.sub.w or B.sub.w and k.sub.w (alternating), coupled with a choice of either constant resonant phase angle or programmed phase space "bucket" area.

Prosnitz, Donald (Walnut Creek, CA); Szoke, Abraham (Fremont, CA)

1985-01-01T23:59:59.000Z

156

Intro Inlets & Sizing TOFMS Other MS LDI AMS CIMS Conc. 2012 AAAR Conference  

E-Print Network (OSTI)

Intro Inlets & Sizing TOFMS Other MS LDI AMS CIMS Conc. 2012 AAAR Conference Minneapolis, MN://cires.colorado.edu/jimenez/ams.html 1 Intro Inlets & Sizing TOFMS Other MS LDI AMS CIMS Conc. Outline 1. Building Blocks ­ Inlets (see references) 2 #12;Intro Inlets & Sizing TOFMS Other MS LDI AMS CIMS Conc. Why Aerosol Mass

Colorado at Boulder, University of

157

Delta M(s) in the MSSM with large tan beta  

E-Print Network (OSTI)

The Bs-Bsbar mixing parameter Delta Ms is studied in the MSSM with large tan beta. The recent Tevatron measurement of Delta Ms is used to constrain the MSSM parameter space. From this analysis the often neglected contribution to Delta Ms from the operator Q^SLL is found to be significant.

Parry, J K

2006-01-01T23:59:59.000Z

158

Teaching OR/MS to MBAs at Warwick Business School: A Turnaround Story  

Science Conference Proceedings (OSTI)

OR/MS is under pressure in MBA programs in the United Kingdom as it is in the United States. To ensure its continuance, members of the operational research group at Warwick Business School redesigned the core OR/MS module. The first attempt at a redesign ... Keywords: Professional: or/ms education.

Stewart Robinson; Maureen Meadows; John Mingers; Frances A. O'Brien; Estelle A. Shale; Stephanie Stray

2003-03-01T23:59:59.000Z

159

Quantum electrodynamics in a laser and the electron laser collision  

E-Print Network (OSTI)

Quantum electrodynamics in a laser is formulated, in which the electron-laser interaction is exactly considered, while the interaction of an electron and a single photon is considered by perturbation. The formulation is applied to the electron-laser collisions. The effect of coherence between photons in the laser is therefore fully considered in these collisions. The possibility of $\\gamma-$ray laser generation by use of this kind of collision is discussed.

Qi-Ren Zhang

2013-03-28T23:59:59.000Z

160

1982 laser program annual report  

Science Conference Proceedings (OSTI)

This annual report covers the following eight sections: (1) laser program review, (2) laser systems and operation, (3) target design, (4) target fabrication, (5) fusion experiments program, (6) Zeus laser project, (7) laser research and development, and (8) energy applications. (MOW)

Hendricks, C.D.; Grow, G.R. (eds.)

1983-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Laser Propulsion Standardization Issues  

SciTech Connect

It is a relevant issue in the research on laser propulsion that experimental results are treated seriously and that meaningful scientific comparison is possible between groups using different equipment and measurement techniques. However, critical aspects of experimental measurements are sparsely addressed in the literature. In addition, few studies so far have the benefit of independent confirmation by other laser propulsion groups. In this paper, we recommend several approaches towards standardization of published laser propulsion experiments. Such standards are particularly important for the measurement of laser ablation pulse energy, laser spot area, imparted impulse or thrust, and mass removal during ablation. Related examples are presented from experiences of an actual scientific cooperation between NU and DLR. On the basis of a given standardization, researchers may better understand and contribute their findings more clearly in the future, and compare those findings confidently with those already published in the laser propulsion literature. Relevant ISO standards are analyzed, and revised formats are recommended for application to laser propulsion studies.

Scharring, Stefan; Eckel, Hans-Albert [Institute of Technical Physics, German Aerospace Center (DLR), D-70569 Stuttgart, Pfaffenwaldring 38-40 (Germany); Roeser, Hans-Peter [Institute of Space Systems, University of Stuttgart, D-70569 Stuttgart, Pfaffenwaldring 31 (Germany); Sinko, John E. [Micro-Nano Global Center of Excellence, Nagoya University (Niue), Nagoya, Aichi, 464-8603 (Japan); Sasoh, Akihiro [Department of Aerospace Engineering, Nagoya University, Nagoya, Aichi, 464-8603 (Japan)

2010-10-08T23:59:59.000Z

162

Laser Spark Plug Development  

Science Conference Proceedings (OSTI)

To meet the ignition system needs of large bore high pressure lean burn natural gas engines a laser diode side pumped passively Q-switched laser igniter was designed and tested. The laser was designed to produce the optical intensities needed to initiate ignition in a lean burn high brake mean effective pressure (BMEP) engine. The experimentation explored a variety of optical and electrical input parameters that when combined produced a robust spark in air. The results show peak power levels exceeding 2 MW and peak focal intensities above 400 GW/cm2. Future research avenues and current progress with the initial prototype are presented and discussed.

McIntyre, D.L.; Richardson, S.W.; Woodruff, S.D.; McMillian, M.H.; Guutam, M. (West Virginia Univ., Morgantown, WV)

2007-04-01T23:59:59.000Z

163

Fiber optic laser rod  

DOE Patents (OSTI)

A laser rod is formed from a plurality of optical fibers, each forming an individual laser. Synchronization of the individual fiber lasers is obtained by evanescent wave coupling between adjacent optical fiber cores. The fiber cores are dye-doped and spaced at a distance appropriate for evanescent wave coupling at the wavelength of the selected dye. An interstitial material having an index of refraction lower than that of the fiber core provides the optical isolation for effective lasing action while maintaining the cores at the appropriate coupling distance. 2 figs.

Erickson, G.F.

1988-04-13T23:59:59.000Z

164

Total Carbon Measurement in Soils Using Laser-Induced Breakdown Spectroscopy: Results from the Field and Implications for Carbon Sequestration  

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

Total Carbon Measurement in Soils using Laser-Induced Breakdown Total Carbon Measurement in Soils using Laser-Induced Breakdown Spectroscopy: Results from the Field and Implications for Carbon Sequestration Michael H. Ebinger (mhe@lanl.gov, 505-667-3147) Environmental Dynamics and Spatial Analysis Group (EES-10), MS J495 Earth and Environmental Sciences Division Los Alamos National Laboratory, Los Alamos, NM 87545, USA. David A. Cremers (cremers_david@lanl.gov, 505-665-4180) Advanced Chemical Diagnostics and Instrumentation Group, MS J565 Chemistry Division Los Alamos National Laboratory, Los Alamos, NM 87545 David D. Breshears (daveb@lanl.gov, 505-665-2803) Environmental Dynamics and Spatial Analysis Group (EES-10), MS J495 Earth and Environmental Sciences Division Los Alamos National Laboratory, Los Alamos, NM 87545, USA.

165

Hidrofobikumo ?taka daikli? sorbcijai vilnos pluote ir daini? fizikin?ms savyb?ms.  

E-Print Network (OSTI)

??Baigiamojo darbo tikslas itirti vilnos pluoto paviriaus hidrofobikumo ?tak? daikli? sorbcijai vilnos pluote ir daini? fizikin?ms savyb?ms. Nauj? antrachinonini? daikli? RB 5-37 M?lynojo ir (more)

Gr?bli?nait?,; Egl?

2011-01-01T23:59:59.000Z

166

Laser desorption/ionization mass spectrometry for direct profiling and imaging of small molecules from raw biological materials  

DOE Green Energy (OSTI)

Matrix-assisted laser desorption/ionization(MALDI) mass spectrometry(MS) has been widely used for analysis of biological molecules, especially macromolecules such as proteins. However, MALDI MS has a problem in small molecule (less than 1 kDa) analysis because of the signal saturation by organic matrixes in the low mass region. In imaging MS (IMS), inhomogeneous surface formation due to the co-crystallization process by organic MALDI matrixes limits the spatial resolution of the mass spectral image. Therefore, to make laser desorption/ionization (LDI) MS more suitable for mass spectral profiling and imaging of small molecules directly from raw biological tissues, LDI MS protocols with various alternative assisting materials were developed and applied to many biological systems of interest. Colloidal graphite was used as a matrix for IMS of small molecules for the first time and methodologies for analyses of small metabolites in rat brain tissues, fruits, and plant tissues were developed. With rat brain tissues, the signal enhancement for cerebroside species by colloidal graphite was observed and images of cerebrosides were successfully generated by IMS. In addition, separation of isobaric lipid ions was performed by imaging tandem MS. Directly from Arabidopsis flowers, flavonoids were successfully profiled and heterogeneous distribution of flavonoids in petals was observed for the first time by graphite-assisted LDI(GALDI) IMS.

Cha, Sangwon

2008-05-15T23:59:59.000Z

167

Fusion reactor pumped laser  

DOE Patents (OSTI)

A nuclear pumped laser capable of producing long pulses of very high power laser radiation is provided. A toroidal fusion reactor provides energetic neutrons which are slowed down by a moderator. The moderated neutrons are converted to energetic particles capable of pumping a lasing medium. The lasing medium is housed in an annular cell surrounding the reactor. The cell includes an annular reflecting mirror at the bottom and an annular output window at the top. A neutron reflector is disposed around the cell to reflect escaping neutrons back into the cell. The laser radiation from the annular window is focused onto a beam compactor which generates a single coherent output laser beam. 10 figs.

Jassby, D.L.

1987-09-04T23:59:59.000Z

168

Laser having improved windows  

SciTech Connect

A discharge tube for a gaseous laser is terminated with windows made of crystalline quartz which do not fluoresce in the presence of high energy, visible and ultraviolet light radiation.

Alves, R.W.; Costich, V.R.

1976-11-23T23:59:59.000Z

169

FREE ELECTRON LASERS  

E-Print Network (OSTI)

1984). Colson, W. B. , "Free electron laser theory," Ph.D.M. 0. , Spitzer, R. , editors, Free Electron Generators ofM.D. , Spitzer, R. , editors, Free Electron Generators of

Colson, W.B.

2008-01-01T23:59:59.000Z

170

Terahertz quantum cascade lasers  

E-Print Network (OSTI)

The development of the terahertz frequency range has long been impeded by the relative dearth of compact, coherent radiation sources of reasonable power. This thesis details the development of quantum cascade lasers (QCLs) ...

Williams, Benjamin S. (Benjamin Stanford), 1974-

2003-01-01T23:59:59.000Z

171

Terahertz radiation from laser accelerated electron bunches  

E-Print Network (OSTI)

NUMBER 5 MAY 2004 Terahertz radiation from laser acceleratedand millimeter wave radiation from laser acceleratedNo. 5, May 2004 Terahertz radiation from laser accelerated

2004-01-01T23:59:59.000Z

172

Zig Zag Nd Laser - Industrial Partnerships Office  

The Laser Systems Group at LLNL has developed a high energy, high average power solid state laser system capable of performing production rate laser shot peening.

173

Laser Extinction in Laminar Inverse Diffusion Flames  

E-Print Network (OSTI)

Diagnostics, Chapter 9: Laser-Induced Incandescence,Laser Extinction in Laminar Inverse Diffusion Flames WesternFoundation, Arlington, VA Laser Extinction in Laminar

Macko, Kevin; Mikofski, Mark A; Fernandez-Pello, Carlos; Blevins, Linda G; Davis, Ronald W.

2005-01-01T23:59:59.000Z

174

EA-1655: Berkeley Lab Laser Accelerator (BELLA) Laser Acquisition, Installation and Use for Research and Development  

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

Berkeley Lab Laser Accelerator (BELLA) Laser Acquisition, Installation and Use for Research and Development

175

VIA EMAIL Ms. Mariah Steele ENERGY STAR Program  

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

June 20, 2013 June 20, 2013 U.S. Environmental Protection Agency 1200 Pennsylvania Avenue, NW Room 62023 Washington, DC 20460 Dear Ms. Steele: The U.S. Department of Energy ("DOE") selected a Summit-brand refrigerator-freezer, model Fl 112BL, manufactured by SANYO E&E (now Panasonic Appliances Refrigeration Systems Corporation of America ("P APRSA")) and sold by Felix Storch, Inc. ("Storch"), for testing as part ofDOE's ENERGY STAR® Verification Testing Program. On March 18, 2013, DOE notified Storch that the model did not meet the ENERGY STAR specification for maximum permitted annual energy use. PAPRSA replied to DOE on April 1, 2013, making two claims. First, PAPRSA argued that DOE's test laboratory, an Intertek laboratory located in Plano, Texas ("Intertek"), did not test in

176

PNM Resources 2401 Aztec NE, MS-Z100  

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

PNM Resources PNM Resources 2401 Aztec NE, MS-Z100 Albuquerque, NM 87107 505-241-2025 Fax 505 241-2384 PNMResources.com October 29, 2013 Mr. Christopher Lawrence Office of Electricity Delivery and Energy Reliability (OE-20) U.S. Department of Energy 1000 Independence Avenue, SW Washington, DC 20585 Submitted electronically via email to: Christopher.Lawrence@hq.doe.gov Dear Mr. Lawrence: Subject: Department of Energy (DOE)- Improving Performance of Federal Permitting and Review of Infrastructure Projects, Request for Information, 78 Fed. Reg. 53436 (Aug. 29, 2013) PNM Resources (PNMR) is an energy holding company with 2012 consolidated operating revenues of $1.3 billion. Through its regulated utilities, PNM and TNMP, PNMR serves electricity to more than 739,000 homes and businesses in New

177

VIA EMAIL Ms. Leslie Jones ENERGY STAR Program  

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

May 22,2012 May 22,2012 U.S. Environmental Protection Agency 1200 Pennsylvania Avenue, NW Room62023 Washington, DC 20460 Dear Ms. Jones: The U.S. Department of Energy ("DOE") selected an Avanti Products ("Avanti") refrigerator, basic model BCA4560W-2 ("model BCA4560W-2"), for testing as patt of the DOE's ENERGY STAR® Verification Testing Program. On April 6, 2012, DOE notified Avanti that the model did not meet the ENERGY STAR energy efficiency requirement for maximum permitted annual energy usage. DOE gave Avanti until April27, 2012, to respond. Avanti responded to DOE via email, submitting various documents, on April27, 2012. Avanti explained that it had randomly selected units of model BCA4560W -2 for testing at third-party

178

VIA EMAIL Ms. Leslie Jones ENERGY STAR Program  

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

September 13, 2011 September 13, 2011 U.S. Environmental Protection Agency 1200 Pennsylvania Avenue, NW Room62023 Washington, DC 20460 Dear Ms. Jones: On July 18,2011, the United States Department of Energy (DOE) notified Whirlpool Corporation (Whirlpool) that DOE had completed testing of the Whirlpool (KitchenAid brand) refrigerator model KSRG25FVMS* under the ENERGY STAR Verification Testing Pilot Program and confirmed that the model did not meet the ENERGY STAR energy efficiency requirement for maximum permitted annual energy usage. DOE gave Whirlpool until Augnst 8, 2011, to provide conclusive manufacturing or design evidence or quality assurance information rebutting DOE testing, which showed that this product did not meet the ENERGY STAR Program's energy efficiency requirement.

179

VIA EMAIL Ms. Mariah Steele ENERGY STAR Program  

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

August 29, 2012 August 29, 2012 U.S. Environmental Protection Agency 1200 Pennsylvania Avenue, NW Room 62023 Washington, DC 20460 Dear Ms. Steele: The U.S. Department of Energy ("DOE") selected a General Electric Company ("GE") refrigerator-freezer, basic model PFSFSNFZ****, for testing as part of DOE's ENERGY STAR® Verification Testing Program. On April6, 2012, DOE notified GE that the model did not meet the ENERGY STAR energy efficiency requirement for maximum permitted annual energy usage. DOE gave GE until April27, 2012, to respond. GE replied to DOE via email on April20, 2012. GE argued that DOE did not test in accordance with the relevant DOE test procedure. In addition, GE noted that it had confirmed the validity of the energy testing that formed the basis of GE's certification and product labeling.

180

VIA EMAIL Ms. Leslie Jones ENERGY STAR Program  

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

December 22, 2011 December 22, 2011 U.S. Environmental Protection Agency 1200 Pennsylvania Avenue, NW Room 62023 Washington, DC 20460 Dear Ms. Jones: On November 1, 2011, the United States Depmiment of Energy ("DOE") notified Grainger Global Sourcing ("Grainger") that DOE had completed testing of the Dayton-brand refrigerator- freezer model 5NTX1 under the ENERGY STAR® Verification Testing Pilot Program and explained that the model did not meet the ENERGY STAR energy efficiency requirement for maximum permitted annual energy usage. DOE gave Grainger until November 20, 2011, to provide conclusive manufacturing or design evidence or quality assurance information rebutting DOE's test results. Grainger responded to DOE via email, submitting various documents, on November 18, 2011.

Note: This page contains sample records for the topic "laser ms bransby" 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

VIA EMAIL Ms. Leslie Jones ENERGY STAR Program  

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

October 28, 2011 October 28, 2011 U.S. Environmental Protection Agency 1200 Pennsylvania Avenue NW Room 62023 Washington, DC 20460 Dear Ms. Jones: The Summit Appliance Division chest freezer model CFllES, manufactured by Midea, was selected for testing as part of the U.S. Department of Energy's (DOE) ENERGY STAR® Verification Testing Pilot Program. DOE's initial testing, performed on a unit of this model, indicated that it may not meet ENERGY STAR requirements. DOE notified Summit of the initial test results, and Summit voluntarily withdrew its model from ENERGY STAR without additional testing. DOE also notified Midea, as Midea manufactures the same basic model for distribution under a variety of other brand names and model numbers, including Midea HS-390C. Midea requested that DOE

182

Ms. Julie Smith Office of Electricity Delivery and Energy Reliability  

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

5, 2013 5, 2013 Ms. Julie Smith Office of Electricity Delivery and Energy Reliability Mail Code OE-20 U.S. Department of Energy 1000 Independence Avenue Washington, D.C. 20585 Juliea.smith@hq.doe.gov; Christopher.lawrence@hq.doe.gov Re: DOE RFI "Improving Performance of Federal Permitting and Review of Infrastructure Projects The American people support increased production and consumption of renewable energy according to credible public opinion polls. Too often the most appropriate sites for wind, solar, hydro, and other renewable generators are in rural areas that necessitate the construction of new high voltage transmission lines to deliver the energy to customer load centers. Siting such lines is a costly multi-year

183

VIA EMAIL Ms. Mariah Steele ENERGY STAR Program  

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

Program Program · U.S. Envirorunental Protection Agency . 1200 Peru1sylvania Avenue, NW Room 62023 · Washington, DC 20460 Dear Ms. Steele: June 7, 2013 The .U.S. Department of Energy ("DOE") selected an Edgestal'-brand dehumidifier, model DEP400EW, for.testing as part ofDOE's ENERGY STAR®Verification Testing Program. On· . October 24, 2012, DOE notified the manufacturer of this modd, , that the model did not meet the minimum energy factor required. for a model of its capacity according to the applicab~e ENERGY STAR specific~tion. · - replied to DOE representatives and raised two- concerns with the DOE testing.' DOE has considered these. concems and found that they did not impact the. validity of DOE's test results.

184

Variable laser attenuator  

DOE Patents (OSTI)

The disclosure relates to low loss, high power variable attenuators comprising one or more transmissive and/or reflective multilayer dielectric filters. The attenuator is particularly suitable to use with unpolarized lasers such as excimer lasers. Beam attenuation is a function of beam polarization and the angle of incidence between the beam and the filter and is controlled by adjusting the angle of incidence the beam makes to the filter or filters. Filters are selected in accordance with beam wavelength. 9 figs.

Foltyn, S.R.

1987-05-29T23:59:59.000Z

185

Cylindrical laser resonator  

DOE Patents (OSTI)

The properties of an improved class of lasers is presented. In one configuration of these lasers the radiation propagates radially within the amplifying medium, resulting in high fields and symmetric illumination at the resonator axis. Thus there is a strong focusing of energy at the axis of the resonator. In a second configuration the radiation propagates back and forth in a tubular region of space.

Casperson, Lee W. (Los Angeles, CA)

1976-02-24T23:59:59.000Z

186

Variable laser attenuator  

SciTech Connect

The disclosure relates to low loss, high power variable attenuators comprng one or more transmissive and/or reflective multilayer dielectric filters. The attenuator is particularly suitable to use with unpolarized lasers such as excimer lasers. Beam attenuation is a function of beam polarization and the angle of incidence between the beam and the filter and is controlled by adjusting the angle of incidence the beam makes to the filter or filters. Filters are selected in accordance with beam wavelength.

Foltyn, Stephen R. (Los Alamos, NM)

1988-01-01T23:59:59.000Z

187

Laser cooling of solids  

SciTech Connect

We present an overview of solid-state optical refrigeration also known as laser cooling in solids by fluorescence upconversion. The idea of cooling a solid-state optical material by simply shining a laser beam onto it may sound counter intuitive but is rapidly becoming a promising technology for future cryocooler. We chart the evolution of this science in rare-earth doped solids and semiconductors.

Epstein, Richard I [Los Alamos National Laboratory; Sheik-bahae, Mansoor [UNM

2008-01-01T23:59:59.000Z

188

Pulsed gas laser  

DOE Patents (OSTI)

A pulsed gas laser is constituted by Blumlein circuits wherein space metal plates function both as capacitors and transmission lines coupling high frequency oscillations to a gas filled laser tube. The tube itself is formed by spaced metal side walls which function as connections to the electrodes to provide for a high frequency, high voltage discharge in the tube to cause the gas to lase. Also shown is a spark gap switch having structural features permitting a long life.

Anderson, Louis W. (Madison, WI); Fitzsimmons, William A. (Madison, WI)

1978-01-01T23:59:59.000Z

189

Laser Initiated Actuator study  

SciTech Connect

The program task was to design and study a laser initiated actuator. The design of the actuator is described, it being comprised of the fiber and body subassemblies. The energy source for all experiments was a Spectra Diode 2200-H2 laser diode. The diode is directly coupled to a 100 micron core, 0.3 numerical aperture fiber optic terminated with an SMA connector. The successful testing results are described and recommendations are made.

Watson, B.

1991-06-27T23:59:59.000Z

190

Particle Generation by Laser Ablation in Support of Chemical Analysis of High Level Mixed Waste from Plutonium Production Operations  

Science Conference Proceedings (OSTI)

Investigate particles produced by laser irradiation and their analysis by Laser Ablation Inductively Coupled Plasma Mass Spectroscopy (LA/ICP-MS), with a view towards optimizing particle production for analysis of high level waste materials and waste glass. LA/ICP-MS has considerable potential to increase the safety and speed of analysis required for the remediation of high level wastes from cold war plutonium production operations. In some sample types, notably the sodium nitrate-based wastes at Hanford and elsewhere, chemical analysis using typical laser conditions depends strongly on the details of sample history composition in a complex fashion, rendering the results of analysis uncertain. Conversely, waste glass materials appear to be better behaved and require different strategies to optimize analysis.

J. Thomas Dickinson; Michael L. Alexander

2001-11-30T23:59:59.000Z

191

CRC handbook of laser science and technology. Volume 3. Gas lasers  

Science Conference Proceedings (OSTI)

This book describes the fundamentals of gas lasers. It provides information and data on neutral gas lasers, ionized gas lasers, and molecular gas lasers. Concluding this volume is an extensive table of all gas laser wavelengths.

Weber, M.J.

1982-01-01T23:59:59.000Z

192

Free-electron laser driven by the LBNL laser-plasma accelerator  

E-Print Network (OSTI)

Free-electron laser driven by the LBNL laser-plasmaA design of a compact free-electron laser (FEL), generatingare considered. Keywords: Free-electron laser, laser-plasma

Schroeder, C. B.

2010-01-01T23:59:59.000Z

193

STEPS: A Grid Search Methodology for Optimized Peptide Identification Filtering of MS/MS Database Search Results  

Science Conference Proceedings (OSTI)

For bottom-up proteomics there are a wide variety of database searching algorithms in use for matching peptide sequences to tandem MS spectra. Likewise, there are numerous strategies being employed to produce a confident list of peptide identifications from the different search algorithm outputs. Here we introduce a grid search approach for determining optimal database filtering criteria in shotgun proteomics data analyses that is easily adaptable to any search. Systematic Trial and Error Parameter Selection - referred to as STEPS - utilizes user-defined parameter ranges to test a wide array of parameter combinations to arrive at an optimal "parameter set" for data filtering, thus maximizing confident identifications. The benefits of this approach in terms of numbers of true positive identifications are demonstrated using datasets derived from immunoaffinity-depleted blood serum and a bacterial cell lysate, two common proteomics sample types.

Piehowski, Paul D.; Petyuk, Vladislav A.; Sandoval, John D.; Burnum, Kristin E.; Kiebel, Gary R.; Monroe, Matthew E.; Anderson, Gordon A.; Camp, David G.; Smith, Richard D.

2013-03-01T23:59:59.000Z

194

Laser fusion pulse shape controller  

DOE Patents (OSTI)

An apparatus for controlling the pulse shape, i.e., the pulse duration and intensity pattern, of a pulsed laser system, and which is particularly well adapted for controlling the pellet ignition pulse in a laser-driven fusion reaction system. The apparatus comprises a laser generator for providing an optical control pulse of the shape desired, a pulsed laser triggered by the control pulse, and a plurality of optical Kerr-effect gates serially disposed at the output of the pulsed laser and selectively triggered by the control pulse to pass only a portion of the pulsed laser output generally corresponding in shape to the control pulse.

Siebert, Larry D. (Ann Arbor, MI)

1977-01-01T23:59:59.000Z

195

Blue-green upconversion laser  

DOE Patents (OSTI)

A blue-green laser (450--550 nm) uses a host crystal doped with Tm[sup 3+]. The Tm[sup 3+] is excited through upconversion by a red pumping laser and an IR pumping laser to a state which transitions to a relatively lower energy level through emissions in the blue-green band, e.g., 450.20 nm at 75 K. The exciting laser may be tunable dye lasers or may be solid-state semiconductor laser, e.g., GaAlAs and InGaAlP. 3 figs.

Nguyen, D.C.; Faulkner, G.E.

1990-08-14T23:59:59.000Z

196

Blue-green upconversion laser  

DOE Patents (OSTI)

A blue-green laser (450-550 nm) uses a host crystal doped with Tm{sup 3+}. The Tm{sup 3+} is excited through upconversion by a red pumping laser and an IR pumping laser to a state which transitions to a relatively lower energy level through emissions in the blue-green band, e.g., 450.20 nm at 75 K. The exciting laser may be tunable dye lasers or may be solid-state semiconducting laser, e.g., GaAlAs and InGaAlP.

Nguyen, Dinh C.; Faulkner, G.E.

1989-08-25T23:59:59.000Z

197

Blue-green upconversion laser  

DOE Patents (OSTI)

A blue-green laser (450-550 nm) uses a host crystal doped with Tm.sup.3+. The Tm.sup.+ is excited through upconversion by a red pumping laser and an IR pumping laser to a state which transitions to a relatively lower energy level through emissions in the blue-green band, e.g., 450.20 nm at 75 K. The exciting laser may be tunable dye lasers or may be solid-state semiconductor laser, e.g., GaAlAs and InGaAlP.

Nguyen, Dinh C. (Los Alamos, NM); Faulkner, George E. (Los Alamos, NM)

1990-01-01T23:59:59.000Z

198

Impurity studies in fusion devices using laser-fluorescence spectroscopy  

DOE Green Energy (OSTI)

Resonance fluorescence excitation of neutral atoms using tunable radiation from dye lasers offers a number of unique advantages for impurity studies in fusion devices. Using this technique, it is possible to perform local time-resolved measurements of the densities and velocity distributions of metallic impurities in fusion devices without disturbing the plasma. Velocities are measured by monitoring the fluorescence intensity while tuning narrow bandwidth laser radiation through the Doppler-broadened absorption spectrum of the transition. The knowledge of the velocity distribution of neutral impurities is particularly useful for the determination of impurity introduction mechanisms. The laser fluorescence technique will be described in terms of its application to metallic impurities in fusion devices and related laboratory experiments. Particular attention will be given to recent results from the ISX-B tokamak using pulsed dye lasers where detection sensitivities for neutral Fe of 10/sup 6/ atoms/cm/sup 3/ with a velocity resolution of 600 m/s (0.1 eV) have been achieved.

Husinsky, W.R.

1981-04-01T23:59:59.000Z

199

Hole-boring through clouds for laser power beaming  

Science Conference Proceedings (OSTI)

Power beaming to satellites with a ground-based laser can be limited by clouds. Hole-boring through the clouds with a laser has been proposed as a way to overcome this obstacle. This paper reviews the past work on laser hole-boring and concludes that hole-boring for direct beaming to satellites is likely to require 10--100 MW. However, it may be possible to use an airborne relay mirror at 10--25 km altitude for some applications in order to extend the range of the laser (e.g., for beaming to satellites near the horizon). In these cases, use of the relay mirror also would allow a narrow beam between the laser and the relay, as well as the possibility of reducing the crosswind if the plane matched speed with the cloud temporarily. Under these conditions, the power requirement to bore a hole through most cirrus and cirrostratus clouds might be only 500-kW if the hole is less than 1 m in diameter and if the crosswind speed is less than 10 m/s. Overcoming cirrus and cirrostratus clouds would reduce the downtime due to weather by a factor of 2. However, 500 kW is a large laser, and it may be more effective instead to establish a second power beaming site in a separate weather zone. An assessment of optimum wavelengths for hole boring also was made, and the best options were found to be 3.0--3.4 {mu}m and above 10 {mu}m.

Lipinski, R.J. [Sandia National Labs., Albuquerque, NM (United States); Walter, R.F. [W.J. Schafer Associates, Inc., Albuquerque, NM (United States)

1994-12-31T23:59:59.000Z

200

Variable emissivity laser thermal control system  

DOE Patents (OSTI)

A laser thermal control system for a metal vapor laser maintains the wall mperature of the laser at a desired level by changing the effective emissivity of the water cooling jacket. This capability increases the overall efficiency of the laser.

Milner, Joseph R. (Livermore, CA)

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Other Projects [Laser Applications Laboratory] - Nuclear Engineering  

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

Other Projects Other Projects Capabilities Engineering Experimentation Reactor Safety Experimentation Aerosol Experiments System Components Laser Applications Overview Laser Oil & Gas Well Drilling Laser Heat Treatment Laser Welding of Metals On-line Monitoring Laser Beam Delivery Laser Glazing of Railroad Rails High Power Laser Beam Delivery Decontamination and Decommissioning Refractory Alloy Welding Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Laser Applications Laboratory Other projects Bookmark and Share HIGH POWER LASER BEAM DELIVERY High-power laser-beam delivery with conventional and fiber optics DECONTAMINATION & DECOMMISSIONING Laser processing technology for decontamination of surfaces

202

Laser Materials Processing: Past, Present and Future  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2010. Symposium, Laser Applications in Materials Processing. Presentation Title, Laser Materials...

203

FREE-ELECTRON LASERS  

SciTech Connect

We can now produce intense, coherent light at wavelengths where no conventional lasers exist. The recent successes of devices known as free-electron lasers mark a striking confluence of two conceptual developments that themselves are only a few decades old. The first of these, the laser, is a product of the fifties and sixties whose essential characteristics have made it a staple resource in almost every field of science and technology. In a practical sense, what defines a laser is its emission of monochromatic, coherent light (that is, light of a single wavelength, with its waves locked in step) at a wavelength in the infrared, visible, or ultraviolet region of the electromagnetic spectrum. A second kind of light, called synchrotron radiation, is a by-product of the age of particle accelerators and was first observed in the laboratory in 1947. As the energies of accelerators grew in the 1960s and 70s, intense, incoherent beams of ultraviolet radiation and x--rays became available at machines built for high-energy physics research. Today, several facilities operate solely as sources of synchrotron light. Unlike the well-collimated monochromatic light emitted by lasers, however, this incoherent radiation is like a sweeping searchlight--more accurately, like the headlight of a train on a circular track--whose wavelengths encompass a wide spectral band. Now, in several laboratories around the world, researchers have exploited the physics of these two light sources and have combined the virtues of both in a single contrivance, the free-electron laser, or FEL (1). The emitted light is laserlike in its narrow, sharply peaked spectral distribution and in its phase coherence, yet it can be of a wavelength unavailable with ordinary lasers. Furthermore, like synchrotron radiation, but unlike the output of most conventional lasers, the radiation emitted by free-electron lasers can be tuned, that is, its wavelength can be easily varied across a wide range. The promise of this new technology extends from the fields of solid-state physics, gas- and liquid-phase photochemistry, and surface catalysis to futuristic schemes for ultrahigh-energy linear accelerators.

Sessler, A.M.; Vaughan, D.

1986-04-01T23:59:59.000Z

204

Comparison of Substrate Processing Via Laser and Laser-Sustained ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2010. Symposium, Laser Applications in Materials Processing. Presentation Title, Comparison of...

205

Insulative laser shell coupler  

DOE Patents (OSTI)

A segmented coaxial laser shell assembly having at least two water jacket sections, two pairs of interconnection half rings, a dialectric break ring, and a pair of threaded ring sections. Each water jacket section with an inner tubular section that defines an inner laser cavity with water paths adjacent to at least a portion of the exterior of the inner tubular section, and mating faces at the end of the water jacket section through which the inner laser cavity opens and which defines at least one water port therethrough in communication with the water jackets. The water paths also define in their external surface a circumferential notch set back from and in close proximity to the mating face. The dielectric break ring has selected thickness and is placed between, and in coaxial alignment with, the mating faces of two of the adjacent water jacket sections. The break ring also defines an inner laser cavity of the same size and shape as the inner laser cavity of the water jacket sections and at least one water passage through the break ring to communicate with at least one water port through the mating faces of the water jacket sections.

Arnold, Phillip A. (Livermore, CA); Anderson, Andrew T. (Livermore, CA); Alger, Terry W. (Tracy, CA)

1994-01-01T23:59:59.000Z

206

The digital laser  

E-Print Network (OSTI)

It is well-known how to control the spatial output from a laser, with most solutions to date involving customised intra-cavity elements in the form of apertures, diffractive optics and free-form mirrors. These optical elements require considerable design and fabrication effort and suffer from the further disadvantage of being immutably connected to the selection of a particular spatial mode. Consequently, most laser systems are designed for the ubiquitous Gaussian mode, whereas it is clear that there are many instances when a customised mode would be preferable. We overcome these limitations with the first digital laser, comprising an electrically addressed reflective phase-only spatial light modulator as an intra-cavity holographic mirror. The phase and amplitude of the holographic mirror may be controlled as simply as writing a new gray-scale image (computer generated hologram) to the device: on-demand laser modes. We show that we can digitally control the laser modes with ease, albeit with higher round-tri...

Ngcobo, Sandile; Burger, Liesl; Forbes, Andrew

2013-01-01T23:59:59.000Z

207

Chapter 31. Microfluidic Fiber Lasers Microfluidic Fiber Lasers  

E-Print Network (OSTI)

at the water/oil interface. We have shown that in maintaining the same pump beam energy, the fiber laser can based pressure sensors. Custom made hermetic optical coupler oil Pump Light Radially Emitted Laser Light hermetic optical coupler oil Pump Light Radially Emitted Laser Light from R6G-doped water plug Microfluidic

208

Fiber Laser Front Ends for High Energy, Short Pulse Lasers  

SciTech Connect

We are developing a fiber laser system for short pulse (1-10ps), high energy ({approx}1kJ) glass laser systems. Fiber lasers are ideal for these systems as they are highly reliable and enable long term stable operation.

Dawson, J; Messerly, M; Phan, H; Siders, C; Beach, R; Barty, C

2007-06-21T23:59:59.000Z

209

Robotic laser welding: seam sensor and laser focal frame registration  

Science Conference Proceedings (OSTI)

Robotic laser welding places extreme demands on the spatial accuracy with which the robot must position the focal point of the laser with respect to the joint to be welded. The required level of accuracy is difficult to achieve in a production environment ... Keywords: Calibration, Laser welding, Robots, Seam tracking

J. P. Huissoon

2002-05-01T23:59:59.000Z

210

ms&t'11 plenary session features u.s. national science foundation ...  

Science Conference Proceedings (OSTI)

08/30 - MS&T'11 PLENARY SESSION FEATURES U.S. NATIONAL SCIENCE ... Dr. Wadsworth's presentation, Responding to Increasing, Energy,...

211

Ms Robin Felder | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Ms. Robin Felder Chemical Sciences, Geosciences, & Biosciences (CSGB) Division CSGB Home About Staff ListingsContact Information What's New Research Areas Scientific Highlights...

212

chemdata.nist.gov/mass-spc/ms-search/downloads/Readme_NIST_Forensics_DART.txt  

Science Conference Proceedings (OSTI)

... this point, if NIST MS Search is running ... Vista, you may need to enter administrative credentials ... Terms of Use ===== o Installation and Use ...

2013-06-30T23:59:59.000Z

213

Multi-Photon Laser Cooling  

Science Conference Proceedings (OSTI)

... used traditional cooling beams at 852 nm in the x-y plane, but replaced the usual two beams along z with lasers at 795 nm. This laser only couples ...

2011-10-04T23:59:59.000Z

214

Laser welding of electrical interconnections  

SciTech Connect

Processes and equipment have been developed for welding thin aluminum and copper foils using a Nd : YAG laser. Laser welding provides an alternate technique with improved quality for welding these types of electrical terminations.

Bauer, F.R.

1978-12-01T23:59:59.000Z

215

Laser Assisted Emittance Exchange  

Science Conference Proceedings (OSTI)

We describe here the laser assisted emittance exchange (LAEE) technique. A laser operating in the transverse mode (TEM10 or TEM01) is used to interact with the electron beam in a dispersive region and to initiate the transverse-to-longitudinal emittance exchange. It is shown that with the LAEE one can generate an electron beam with ultralow transverse emittance, which allows one to significantly bring down the size of an X-ray free electron laser (FEL) and greatly extend the availability of these light sources. The technique can also be used to enhance the performances of X-ray FELs in storage rings. The timing and energy jitter problems for the standard emittance exchange and LAEE techniques are also discussed.

Xiang, Dao; /SLAC

2012-06-11T23:59:59.000Z

216

SOLAR PUMPED LASER MICROTHRUSTER  

DOE Green Energy (OSTI)

The development of microsatellites requires the development of engines to modify their orbit. It is natural to use solar energy to drive such engines. For an unlimited energy source the optimal thruster must use a minimal amount of expendable material to minimize launch costs. This requires the ejected material to have the maximal velocity and, hence, the ejected atoms must be as light as possible and be ejected by as high an energy density source as possible. Such a propulsion can be induced by pulses from an ultra-short laser. The ultra-short laser provides the high-energy concentration and high-ejected velocity. We suggest a microthruster system comprised of an inflatable solar concentrator, a solar panel, and a diode-pumped fiber laser. We will describe the system design and give weight estimates.

Rubenchik, A M; Beach, R; Dawson, J; Siders, C W

2010-02-05T23:59:59.000Z

217

Stimulated radiative laser cooling  

E-Print Network (OSTI)

Building a refrigerator based on the conversion of heat into optical energy is an ongoing engineering challenge. Under well-defined conditions, spontaneous anti-Stokes fluorescence of a dopant material in a host matrix is capable of lowering the host temperature. The fluorescence is conveying away a part of the thermal energy stored in the vibrational oscillations of the host lattice. In particular, applying this principle to the cooling of (solid-state) lasers opens up many potential device applications, especially in the domain of high-power lasers. In this paper, an alternative optical cooling scheme is outlined, leading to radiative cooling of solid-state lasers. It is based on converting the thermal energy stored in the host, into optical energy by means of a stimulated nonlinear process, rather than a spontaneous process. This should lead to better cooling efficiencies and a higher potential of applying the principle for device applications.

Muys, Peter

2007-01-01T23:59:59.000Z

218

Laser isotope separation  

DOE Patents (OSTI)

A process and apparatus for separating isotopes by selective excitation of isotopic species of a volatile compound by tuned laser light is described. A highly cooled gas of the volatile compound is produced in which the isotopic shift is sharpened and defined. Before substantial condensation occurs, the cooled gas is irradiated with laser light precisely tuned to a desired wavelength to selectively excite a particular isotopic species in the cooled gas. The laser light may impart sufficient energy to the excited species to cause it to undergo photolysis, photochemical reaction or even to photoionize. Alternatively, a two-photon irradiation may be applied to the cooled gas to induce photolysis, photochemical reaction or photoionization. The process is particularly applicable to the separation of isotopes of uranium.

Robinson, C.P.; Reed, J.J.; Cotter, T.P.; Boyer, K.; Greiner, N.R.

1975-11-26T23:59:59.000Z

219

Laser beam alignment system  

DOE Patents (OSTI)

A plurality of pivotal reflectors direct a high-power laser beam onto a workpiece, and a rotatable reflector is movable to a position wherein it intercepts the beam and deflects a major portion thereof away from its normal path, the remainder of the beam passing to the pivotal reflectors through an aperture in the rotating reflector. A plurality of targets are movable to positions intercepting the path of light traveling to the pivotal reflectors, and a preliminary adjustment of the latter is made by use of a low-power laser beam reflected from the rotating reflector, after which the same targets are used to make a final adjustment of the pivotal reflectors with the portion of the high-power laser beam passed through the rotating reflector.

Kasner, William H. (11686 Althea Dr., Pittsburgh, PA 15235); Racki, Daniel J. (712 Union Cemetery Rd., Greensburg, PA 15601); Swenson, Clark E. (228 Scott Dr., Monroeville, PA 15146)

1984-01-01T23:59:59.000Z

220

Piezoelectric measurement of laser power  

DOE Patents (OSTI)

A method for measuring the energy of individual laser pulses or a series of laser pulses by reading the output of a piezoelectric (PZ) transducer which has received a known fraction of the total laser pulse beam. An apparatus is disclosed that reduces the incident energy on the PZ transducer by means of a beam splitter placed in the beam of the laser pulses. 4 figs.

Deason, V.A.; Johnson, J.A.; Telschow, K.L.

1989-11-20T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Laser Application for Material Processing  

Science Conference Proceedings (OSTI)

Oct 10, 2012 ... Advanced Materials, Processes and Applications for Additive Manufacturing: Laser Application for Material Processing Program Organizers:...

222

CRC handbook of laser science and technology. Volume 1. Lasers and masers  

Science Conference Proceedings (OSTI)

This book describes various types of lasers and masers. The following topics are discussed in detail: types and comparisons of laser sources, crystal and glass lasers, semiconductor lasers, organic dye and other liquid lasers, free-electron and x-ray lasers, masers and laser safety.

Weber, M.J.

1982-01-01T23:59:59.000Z

223

Vacuum ultraviolet laser  

SciTech Connect

Transitions from the 2p.sup.4 (.sup.1 S.sub.0)3s .sup.2 S.sub.1/2 state of atomic fluorine to all allowed lower states produces laser emission at six new wavelengths: 680.7 .ANG., 682.6 .ANG., 3592.7 .ANG., 3574.1 .ANG., 6089.2 .ANG., and 6046.8 .ANG.. Coherent radiation at these new wavelengths can be generated in an atomic fluorine laser operated as an amplifier or as an oscillator.

Berkowitz, Joseph (Hinsdale, IL); Ruscic, Branko M. (Zagreb, YU); Greene, John P. (Woodridge, IL)

1986-01-01T23:59:59.000Z

224

Vacuum ultraviolet laser  

DOE Patents (OSTI)

Transitions from the 2p/sup 4/(/sup 1/S/sub 0/)3s /sup 2/S/sub 1/2/ state of atomic fluorine to all allowed loser states produces laser emission at six new wavelengths: 680.7A, 682.6A, 3592.7A, 3574.1A, 6089.2A, and 6046.8A. Coherent radiation at these new wavelengths can be generated in an atomic fluorine laser operated as an amplifier or as an oscillator.

Berkowitz, J.; Ruscic, B.M.; Greene, J.P.

1984-07-06T23:59:59.000Z

225

Laser amplifier chain  

DOE Patents (OSTI)

A laser amplifier chain has a plurality of laser amplifiers arranged in a chain to sequentially amplify a low-power signal beam to produce a significantly higher-power output beam. Overall efficiency of such a chain is improved if high-gain, low efficiency amplifiers are placed on the upstream side of the chain where only a very small fraction of the total pumped power is received by the chain and low-gain, high-efficiency amplifiers are placed on the downstream side where a majority of pumping energy is received by the chain.

Hackel, Richard P. (Livermore, CA)

1992-01-01T23:59:59.000Z

226

Laser amplifier chain  

DOE Patents (OSTI)

A laser amplifier chain has a plurality of laser amplifiers arranged in a chain to sequentially amplify a low-power signal beam to produce a significantly higher-power output beam. Overall efficiency of such a chain is improved if high-gain, low efficiency amplifiers are placed on the upstream side of the chain where only a very small fraction of the total pumped power is received by the chain and low-gain, high-efficiency amplifiers are placed on the downstream side where a majority of pumping energy is received by the chain. 6 figs.

Hackel, R.P.

1992-10-20T23:59:59.000Z

227

Laser pulse stacking method  

DOE Patents (OSTI)

A laser pulse stacking method is disclosed. A problem with the prior art has been the generation of a series of laser beam pulses where the outer and inner regions of the beams are generated so as to form radially non-synchronous pulses. Such pulses thus have a non-uniform cross-sectional area with respect to the outer and inner edges of the pulses. The present invention provides a solution by combining the temporally non-uniform pulses in a stacking effect to thus provide a more uniform temporal synchronism over the beam diameter. 2 figs.

Moses, E.I.

1992-12-01T23:59:59.000Z

228

Laser pulse stacking method  

DOE Patents (OSTI)

A laser pulse stacking method is disclosed. A problem with the prior art has been the generation of a series of laser beam pulses where the outer and inner regions of the beams are generated so as to form radially non-synchronous pulses. Such pulses thus have a non-uniform cross-sectional area with respect to the outer and inner edges of the pulses. The present invention provides a solution by combining the temporally non-uniform pulses in a stacking effect to thus provide a more uniform temporal synchronism over the beam diameter.

Moses, Edward I. (Livermore, CA)

1992-01-01T23:59:59.000Z

229

Rare earth gas laser  

DOE Patents (OSTI)

A high energy gas laser with light output in the infrared or visible region of the spectrum is described. Laser action is obtained by generating vapors of rare earth halides, particularly neodymium iodide or, to a lesser extent, neodymium bromide, and disposing the rare earth vapor medium in a resonant cavity at elevated temperatures; e.g., approximately 1200/sup 0/ to 1400/sup 0/K. A particularly preferred gaseous medium is one involving a complex of aluminum chloride and neodymium chloride, which exhibits tremendously enhanced vapor pressure compared to the rare earth halides per se, and provides comparable increases in stored energy densities.

Krupke, W.F.

1975-10-31T23:59:59.000Z

230

Single element laser beam shaper  

DOE Patents (OSTI)

A single lens laser beam shaper for converting laser beams from any spatial profile to a flat-top or uniform spatial profile. The laser beam shaper includes a lens having two aspheric surfaces. The beam shaper significantly simplifies the overall structure in comparison with conventional 2-element systems and therefore provides great ease in alignment and reduction of cost.

Zhang, Shukui (Yorktown, VA); Michelle D. Shinn (Newport News, VA)

2005-09-13T23:59:59.000Z

231

Laser Phase Errors in Seeded Free Electron Lasers  

SciTech Connect

Harmonic seeding of free electron lasers has attracted significant attention as a method for producing transform-limited pulses in the soft x-ray region. Harmonic multiplication schemes extend seeding to shorter wavelengths, but also amplify the spectral phase errors of the initial seed laser, and may degrade the pulse quality and impede production of transform-limited pulses. In this paper we consider the effect of seed laser phase errors in high gain harmonic generation and echo-enabled harmonic generation. We use simulations to confirm analytical results for the case of linearly chirped seed lasers, and extend the results for arbitrary seed laser envelope and phase.

Ratner, D.; Fry, A.; Stupakov, G.; White, W.; /SLAC

2012-04-17T23:59:59.000Z

232

Laser-Material Interactions: A Study of Laser Energy Coupling with Solids  

E-Print Network (OSTI)

1971) Effects of High-Power Laser Radiation, Academic Presin Effects of High-Power Laser Radiation, (Academic Press,for modeling gas discharge lasers", Boulder, Colo. : Univ.

Shannon, M.A.

2009-01-01T23:59:59.000Z

233

Free-electron laser driven by the LBNL laser-plasma accelerator  

E-Print Network (OSTI)

OF AN XUV FEL DRIVEN BY THE LASER-PLASMA ACCELERATOR AT THEFree-electron laser driven bythe LBNL laser-plasma accelerator C. B. Schroeder ? , W. M.

Schroeder, C. B.

2010-01-01T23:59:59.000Z

234

Laser triggered injection of electrons in a laser wakefield accelerator with the colliding pulse method  

E-Print Network (OSTI)

Laser Triggered Injection ofElectrons in a Laser Wake?eld Accelerator with the CollidingAn injection scheme for a laser wake?eld accelerator that

2004-01-01T23:59:59.000Z

235

Laser-Generated Shockwaves for the Disruption of Bacterial Biofilms  

E-Print Network (OSTI)

Characterization by modified Laser Spallation Technique (The Basic Laser Spallation Technique (Modified Laser Spallation Technique: Top-Down

Navarro, Artemio

2013-01-01T23:59:59.000Z

236

New Developments in LC-MS and Other Hyphenated Techniques  

SciTech Connect

Extensive challenges faced by analytical chemists in studying real world complex samples such as biological body fluids, tissue samples, environmental and geological samples have lead to the development of advanced analytical approaches. The vast array of contemporary technologies can be categorized into two major areas: sample separation and mass spectrometry analysis. Current state-of-the-art sample separation methods include gas chromatography, high performance liquid chromatography, ultra high pressure liquid chromatography, solid phase extraction, capillary electrophoresis, and gas phase separation techniques such as ion mobility spectrometry. The recent trend in sample separation is to combine (or hyphenate) multiple techniques that employ different separation mechanisms to maximize separation efficiency. The most widely used combinations include two-dimensional gas chromatography, strong cation exchange or weak cation exchange chromatography followed by reversed-phase liquid chromatography, two-dimensional reversed-phase liquid chromatography, liquid chromatography followed by ion mobility spectrometry and two-dimensional electrophoresis techniques. The introduction of atmospheric pressure ionization techniques such as electrospray ionization and matrix assisted laser desorption ionization and variations of the two have drastically increased the impact of mass spectrometry on bioanalytical applications. Mass spectrometry itself has tremendously improved over the years in terms of sensitivity, detection limits, dynamic range and sequencing capabilities. Currently, mass spectrometers can attain zeptomolole detection limits with five orders of magnitude dynamic range. In this chapter, we summarize recent developments in hyphenated techniques and their applications to complex sample analysis.

Belov, Mikhail E.; Kurulugama, Ruwan T.; Lopez-Ferrer, Daniel; Ibrahim, Yehia M.; Baker, Erin Shammel

2011-06-21T23:59:59.000Z

237

Laser Program annual report 1984  

Science Conference Proceedings (OSTI)

The Laser Program Annual Report is part of the continuing series of reports documenting the progress of the unclassified Laser Fusion Program at the Lawrence Livermore National Laboratory (LLNL). As in previous years, the report is organized programmatically. The first section is an overview of the basic goals and directions of the LLNL Inertial Confinement Fusion (ICF) Program, and highlights the year's important accomplishments. Sections 2 through 7 provide the detailed information on the various program elements: Laser Systems and Operations, Target Design, Target Fabrication, Laser Experiments and Advanced Diagnostics, Advanced Laser Development, and Applications of Inertial Confinement Fusion. Individual sections will be indexed separately. 589 refs., 333 figs., 25 tabs.

Rufer, M.L.; Murphy, P.W. (eds.)

1985-06-01T23:59:59.000Z

238

Dye laser amplifier  

DOE Patents (OSTI)

An improved dye laser amplifier is disclosed. The efficiency of the dye lr amplifier is increased significantly by increasing the power of a dye beam as it passes from an input window to an output window within the dye chamber, while maintaining the intensity of the dye beam constant.

Moses, Edward I. (Livermore, CA)

1992-01-01T23:59:59.000Z

239

Apodizer aperture for lasers  

DOE Patents (OSTI)

An aperture attenuator for use with high power lasers which includes glass windows shaped and assembled to form an annulus chamber which is filled with a dye solution. The annulus chamber is shaped such that the section in alignment with the axis of the incident beam follows a curve which is represented by the equation y = (r - r.sub.o).sup.n.

Jorna, Siebe (Ann Arbor, MI); Siebert, Larry D. (Ann Arbor, MI); Brueckner, Keith A. (La Jolla, CA)

1976-11-09T23:59:59.000Z

240

Proceedings of the 2011 Emerging M&S Applications in Industry and Academia Symposium  

Science Conference Proceedings (OSTI)

The EAIA symposium goes into its third year as an independent symposium! As in the recent years this symposium functions as the melting pot for new ideas and innovative applications of M&S that are not yet mature enough to fit into the traditional M&S ...

Andreas Tolk

2011-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Gas chromatograph-mass spectrometer (GC/MS) system for quantitative analysis of reactive chemical compounds  

DOE Patents (OSTI)

Described is a new gas chromatograph-mass spectrometer (GC/MS) system and method for quantitative analysis of reactive chemical compounds. All components of such a GC/MS system external to the oven of the gas chromatograph are programmably temperature controlled to operate at a volatilization temperature specific to the compound(s) sought to be separated and measured.

Grindstaff, Quirinus G. (Oak Ridge, TN)

1992-01-01T23:59:59.000Z

242

Performance evaluation of an improved harmony search algorithm for numerical optimization: Melody Search (MS)  

Science Conference Proceedings (OSTI)

Melody Search (MS) Algorithm as an innovative improved version of Harmony Search optimization method, with a novel Alternative Improvisation Procedure (AIP) is presented in this paper. MS algorithm mimics performance processes of the group improvisation ... Keywords: Alternative improvisation procedure, Harmony search, Melody Search algorithm, Numerical optimization, Stochastic search methods

S. M. Ashrafi; A. B. Dariane

2013-04-01T23:59:59.000Z

243

Emerging M&S challenges for human, social, cultural, and behavioral modeling  

Science Conference Proceedings (OSTI)

The discipline of Modeling and Simulation (M&S) is ubiquitous in many domains, such as training and education, support of decision-making, or analysis of potential developments. In particular the armed forces apply M&S extensively and enable pioneering ... Keywords: behavioral modeling, cultural modeling, human modeling, social modeling

Dr. Andreas Tolk

2009-07-01T23:59:59.000Z

244

Semiconductor processing with excimer lasers  

DOE Green Energy (OSTI)

The advantages of pulsed excimer lasers for semiconductor processing are reviewed. Extensive comparisons of the quality of annealing of ion-implanted Si obtained with XeCl and ruby lasers have been made. The results indicate that irrespective of the large differences in the optical properties of Si at uv and visible wavelengths, the efficiency of usage of the incident energy for annealing is comparable for the two lasers. However, because of the excellent optical beam quality, the XeCl laser can provide superior control of the surface melting and the resulting junction depth. Furthermore, the concentrations of electrically active point defects in the XeCl laser annealed region are 2 to 3 orders of magnitude lower than that obtained from ruby or Nd:YAG lasers. All these results seem to suggest that XeCl lasers should be suitable for fabricating not only solar cells but also the more advanced device structures required for VLSI or VHSIC applications.

Young, R.T.; Narayan, J.; Christie, W.H.; van der Leeden, G.A.; Rothe, D.E.; Cheng, L.J.

1983-01-01T23:59:59.000Z

245

Speckle-free laser imaging  

E-Print Network (OSTI)

Many imaging applications require increasingly bright illumination sources, motivating the replacement of conventional thermal light sources with light emitting diodes (LEDs), superluminescent diodes (SLDs) and lasers. Despite their brightness, lasers and SLDs are poorly suited for full-field imaging applications because their high spatial coherence leads to coherent artifacts known as speckle that corrupt image formation. We recently demonstrated that random lasers can be engineered to provide low spatial coherence. Here, we exploit the low spatial coherence of specifically-designed random lasers to perform speckle-free full-field imaging in the setting of significant optical scattering. We quantitatively demonstrate that images generated with random laser illumination exhibit higher resolution than images generated with spatially coherent illumination. By providing intense laser illumination without the drawback of coherent artifacts, random lasers are well suited for a host of full-field imaging applicatio...

Redding, Brandon; Cao, Hui

2011-01-01T23:59:59.000Z

246

Pantex Laser Perimeter Awareness System-IG-0809 | Department...  

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

Pantex Laser Perimeter Awareness System-IG-0809 Pantex Laser Perimeter Awareness System-IG-0809 Report on Pantex Laser Perimeter Awareness System Pantex Laser Perimeter Awareness...

247

Staging laser plasma accelerators for increased beam energy  

E-Print Network (OSTI)

Staging Laser Plasma Accelerators for Increased Beam Energy94720, USA Abstract. Staging laser plasma accelerators is anefficient way of mitigating laser pump depletion in laser

Panasenko, Dmitriy

2010-01-01T23:59:59.000Z

248

U-190: Microsoft Security Bulletin MS12-037 - Critical | Department of  

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

0: Microsoft Security Bulletin MS12-037 - Critical 0: Microsoft Security Bulletin MS12-037 - Critical U-190: Microsoft Security Bulletin MS12-037 - Critical June 13, 2012 - 3:30pm Addthis PROBLEM: Microsoft Security Bulletin MS12-037 - Critical PLATFORM: Internet Explorer 8.x ABSTRACT: This security update resolves one publicly disclosed and twelve privately reported vulnerabilities in Internet Explorer. LINKS: Microsoft Security Bulletin MS12-037 - Critical Secunia Advisory SA49412 IMPACT ASSESSMENT: High Discussion: The most severe vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker who successfully exploited any of these vulnerabilities could gain the same user rights as the current user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who

249

Laser Applications Laboratory - Nuclear Engineering Division (Argonne)  

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

Capabilities > Engineering Capabilities > Engineering Experimentation > Laser Applications Laboratory Capabilities Engineering Experimentation Reactor Safety Experimentation Aerosol Experiments System Components Laser Applications Overview Laser Oil & Gas Well Drilling Laser Heat Treatment Laser Welding of Metals On-line Monitoring Laser Beam Delivery Laser Glazing of Railroad Rails High Power Laser Beam Delivery Decontamination and Decommissioning Refractory Alloy Welding Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Laser Applications Laboratory The Laser Applications Laboratory (LAL) houses two high-power laser systems, complete with diagnostics for materials-processing functions - a 6 kW CO2 laser and a 1.6 kW pulsed Nd:YAG laser.

250

Laser beam temporal and spatial tailoring for laser shock processing  

DOE Patents (OSTI)

Techniques are provided for formatting laser pulse spatial shape and for effectively and efficiently delivering the laser energy to a work surface in the laser shock process. An appropriately formatted pulse helps to eliminate breakdown and generate uniform shocks. The invention uses a high power laser technology capable of meeting the laser requirements for a high throughput process, that is, a laser which can treat many square centimeters of surface area per second. The shock process has a broad range of applications, especially in the aerospace industry, where treating parts to reduce or eliminate corrosion failure is very important. The invention may be used for treating metal components to improve strength and corrosion resistance. The invention has a broad range of applications for parts that are currently shot peened and/or require peening by means other than shot peening. Major applications for the invention are in the automotive and aerospace industries for components such as turbine blades, compressor components, gears, etc.

Hackel, Lloyd (Livermore, CA); Dane, C. Brent (Livermore, CA)

2001-01-01T23:59:59.000Z

251

CO/sub 2/-laser fusion  

SciTech Connect

The basic concept of laser fusion is described, with a set of requirements on the laser system. Systems and applications concepts are presented and discussed. The CO/sub 2/ laser's characteristics and advantages for laser fusion are described. Finally, technological issues in the development of CO/sub 2/ laser systems for fusion applications are discussed.

Stark, E.E. Jr.

1978-01-01T23:59:59.000Z

252

Laser beam guard clamps  

DOE Patents (OSTI)

A quick insert and release laser beam guard panel clamping apparatus having a base plate mountable on an optical table, a first jaw affixed to the base plate, and a spring-loaded second jaw slidably carried by the base plate to exert a clamping force. The first and second jaws each having a face acutely angled relative to the other face to form a V-shaped, open channel mouth, which enables wedge-action jaw separation by and subsequent clamping of a laser beam guard panel inserted through the open channel mouth. Preferably, the clamping apparatus also includes a support structure having an open slot aperture which is positioned over and parallel with the open channel mouth.

Dickson, Richard K. (Stockton, CA)

2010-09-07T23:59:59.000Z

253

Fusion pumped laser  

SciTech Connect

Apparatus is provided for generating energy in the form of laser radiation. A tokamak fusion reactor is provided for generating a long, or continuous, pulse of high-energy neutrons. The tokamak design provides a temperature and a magnetic field which is effective to generate a neutron flux of at least 10.sup.15 neutrons/cm.sup.2.s. A conversion medium receives neutrons from the tokamak and converts the high-energy neutrons to an energy source with an intensity and an energy effective to excite a preselected lasing medium. The energy source typically comprises fission fragments, alpha particles, and radiation from a fission event. A lasing medium is provided which is responsive to the energy source to generate a population inversion which is effective to support laser oscillations for generating output radiation.

Pappas, Daniel S. (Los Alamos, NM)

1989-01-01T23:59:59.000Z

254

Azacoumarin dye lasers  

DOE Patents (OSTI)

A dye laser comprising a laser dye solution of a compound having the general structure: ##STR1## wherein at least one of the 5, 6 and 8 ring positions is occupied by a nitrogen atom in lieu of the corresponding CR group and X is OH, alkoxy, or amino including amino substituted by at least one of the following: alkyl, aryl, acyl, aracyl, a group which taken together with the nitrogen atom of the amino group forms a heterocyclic ring, or part of one or two 5 or 6 membered aliphatic heterocyclic rings attached to ring A at positions 6 or 8 or both depending on where the N in ring A is located. R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.8 are hydrogen or other groups as defined below. The compounds lase in the blue-green to near ultraviolet region.

Hammond, Peter R. (Livermore, CA); Atkins, Ronald L. (Ridgecrest, CA); Henry, Ronald A. (China Lake, CA); Fletcher, Aaron N. (Ridgecrest, CA)

1978-01-01T23:59:59.000Z

255

Azaquinolone dye lasers  

DOE Patents (OSTI)

A dye laser comprising a laser dye solution of a compound having the general structure: ##STR1## wherein at least one of the 5, 6 and 8 ring positions is occupied by a nitrogen atom in lieu of the corresponding CR group and X is OH, alkoxy, or amino including amino substituted by at least one of the following: alkyl, aryl, acyl, aracyl, a group which taken together with the nitrogen atom of the amino group forms a heterocyclic ring, or part of one or two 5 or 6 membered aliphatic heterocyclic rings attached to ring A at positions 6 or 8 or both depending on where the N in ring A is located. R.sub.1, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.8 are hydrogen or other groups as defined below. The compounds lase in the blue to near ultraviolet region.

Hammond, Peter R. (Livermore, CA); Atkins, Ronald L. (Ridgecrest, CA); Henry, Ronald A. (China Lake, CA); Fletcher, Aaron N. (Ridgecrest, CA)

1978-01-01T23:59:59.000Z

256

Fusion pumped laser  

DOE Patents (OSTI)

The apparatus of this invention may comprise a system for generating laser radiation from a high-energy neutron source. The neutron source is a tokamak fusion reactor generating a long pulse of high-energy neutrons and having a temperature and magnetic field effective to generate a neutron flux of at least 10/sup 15/ neutrons/cm/sup 2//center dot/s. Conversion means are provided adjacent the fusion reactor at a location operable for converting the high-energy neutrons to an energy source with an intensity and energy effective to excite a preselected lasing medium. A lasing medium is spaced about and responsive to the energy source to generate a population inversion effective to support laser oscillations for generating output radiation. 2 figs., 2 tabs.

Pappas, D.S.

1987-07-31T23:59:59.000Z

257

Metal atom oxidation laser  

DOE Patents (OSTI)

A chemical laser which operates by formation of metal or carbon atoms and reaction of such atoms with a gaseous oxidizer in an optical resonant cavity is described. The lasing species are diatomic or polyatomic in nature and are readily produced by exchange or other abstraction reactions between the metal or carbon atoms and the oxidizer. The lasing molecules may be metal or carbon monohalides or monoxides. (auth)

Jensen, R.J.; Rice, W.W.; Beattie, W.H.

1975-10-28T23:59:59.000Z

258

Metal atom oxidation laser  

DOE Patents (OSTI)

A chemical laser which operates by formation of metal or carbon atoms and reaction of such atoms with a gaseous oxidizer in an optical resonant cavity is described. The lasing species are diatomic or polyatomic in nature and are readily produced by exchange or other abstraction reactions between the metal or carbon atoms and the oxidizer. The lasing molecules may be metal or carbon monohalides or monoxides.

Jensen, R.J.; Rice, W.W.; Beattie, W.H.

1975-10-28T23:59:59.000Z

259

Laser system preset unit  

DOE Patents (OSTI)

An electronic circuit is provided which may be used to preset a digital display unit of a Zeeman-effect layer interferometer system which derives distance measurements by comparing a reference signal to a Doppler signal generated at the output of the interferometer laser head. The circuit presets dimensional offsets in the interferometer digital display by electronically inducing a variation in either the Doppler signal or the reference signal, depending upon the direction of the offset, to achieve the desired display preset.

Goodwin, William L. (Knoxville, TN)

1977-01-01T23:59:59.000Z

260

Ultrafast pulsed laser utilizing broad bandwidth laser glass  

DOE Patents (OSTI)

An ultrafast laser uses a Nd-doped phosphate laser glass characterized by a particularly broad emission bandwidth to generate the shortest possible output pulses. The laser glass is composed primarily of P{sub 2}O{sub 5}, Al{sub 2}O{sub 3} and MgO, and possesses physical and thermal properties that are compatible with standard melting and manufacturing methods. The broad bandwidth laser glass can be used in modelocked oscillators as well as in amplifier modules. 7 figs.

Payne, S.A.; Hayden, J.S.

1997-09-02T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Ultrafast pulsed laser utilizing broad bandwidth laser glass  

DOE Patents (OSTI)

An ultrafast laser uses a Nd-doped phosphate laser glass characterized by a particularly broad emission bandwidth to generate the shortest possible output pulses. The laser glass is composed primarily of P.sub.2 O.sub.5, Al.sub.2 O.sub.3 and MgO, and possesses physical and thermal properties that are compatible with standard melting and manufacturing methods. The broad bandwidth laser glass can be used in modelocked oscillators as well as in amplifier modules.

Payne, Stephen A. (Castro Valley, CA); Hayden, Joseph S. (Clarks Summit, PA)

1997-01-01T23:59:59.000Z

262

Short-pulse Laser Capability on the Mercury Laser System  

Science Conference Proceedings (OSTI)

Applications using high energy ''petawatt-class'' laser drivers operating at repetition rates beyond 0.01 Hz are only now being envisioned. The Mercury laser system is designed to operate at 100 J/pulse at 10 Hz. We investigate the potential of configuring the Mercury laser to produce a rep-rated, ''petawatt-class'' source. The Mercury laser is a prototype of a high energy, high repetition rate source (100 J, 10 Hz). The design of the Mercury laser is based on the ability to scale in energy through scaling in aperture. Mercury is one of several 100 J, high repetition rate (10 Hz) lasers sources currently under development (HALNA, LUCIA, POLARIS). We examine the possibility of using Mercury as a pump source for a high irradiance ''petawatt-class'' source: either as a pump laser for an average power Ti:Sapphire laser, or as a pump laser for OPCPA based on YCa{sub 4}O(BO{sub 3}){sub 3} (YCOB), ideally producing a source approaching 30 J /30 fs /10 Hz--a high repetition rate petawatt. A comparison of the two systems with nominal configurations and efficiencies is shown in Table 1.

Ebbers, C; Armstrong, P; Bayramian, A; Barty, C J; Bibeau, C; Britten, J; Caird, J; Campbell, R; Chai, B; Crane, J; Cross, R; Erlandson, A; Fei, Y; Freitas, B; Jovanovic, I; Liao, Z; Molander, B; Schaffers, K; Stuart, B; Sutton, S; Ladran, T; Telford, S; Thelin, P; Utterback, E

2006-06-22T23:59:59.000Z

263

Solid-state laser system for laser cooling of Sodium  

E-Print Network (OSTI)

We demonstrate a frequency-stabilized, all-solid laser source at 589 nm with up to 800 mW output power. The laser relies on sum-frequency generation from two laser sources at 1064 nm and 1319 nm through a PPKTP crystal in a doubly-resonant cavity. We obtain conversion efficiency as high as 2 W/W^2 after optimization of the cavity parameters. The output wavelength is tunable over 60 GHz, which is sufficient to lock on the Sodium D2 line. The robustness, beam quality, spectral narrowness and tunability of our source make it an alternative to dye lasers for atomic physics experiments with Sodium atoms.

Emmanuel Mimoun; Luigi de Sarlo; Jean-Jacques Zondy; Jean Dalibard; Fabrice Gerbier

2009-08-03T23:59:59.000Z

264

Solid-state laser system for laser cooling of Sodium  

E-Print Network (OSTI)

We demonstrate a frequency-stabilized, all-solid laser source at 589 nm with up to 800 mW output power. The laser relies on sum-frequency generation from two laser sources at 1064 nm and 1319 nm through a PPKTP crystal in a doubly-resonant cavity. We obtain conversion efficiency as high as 2 W/W^2 after optimization of the cavity parameters. The output wavelength is tunable over 60 GHz, which is sufficient to lock on the Sodium D2 line. The robustness, beam quality, spectral narrowness and tunability of our source make it an alternative to dye lasers for atomic physics experiments with Sodium atoms.

Mimoun, Emmanuel; Zondy, Jean-Jacques; Dalibard, Jean; Gerbier, Fabrice

2009-01-01T23:59:59.000Z

265

Laser Safety: A Laser Alignment Practical Training Course  

Science Conference Proceedings (OSTI)

SLAC National Accelerator Laboratory has developed a Laser Alignment Practical Training Course as one of its core laser safety classes. The course is taught to small groups of up to three students and takes 1-3 hours to complete. This practical course is not a substitute for site-specific On-the-Job Training; it does, however, provide a good introduction in core laser safety practices that can be broadly applied. Alignment and diagnostic tasks are performed with low power lasers. Students learn safe alignment and diagnostic techniques and how to avoid common mistakes that might lead to an accident. The class is taught by laser supervisors, enabling them to assess the skill level of new laser personnel and determine the subsequent level of supervision needed. The course has six alignment tasks. For each task, discussion points are given for the instructor to review with the students. The optics setup includes different wavelength lasers, a beam expander, mirrors, irises, a periscope, a beam-splitting polarizer and a diffraction grating. Diagnostic tools include viewing cards, an IR viewer and a ccd camera. Laser eyewear is available to block some laser wavelengths in the setup.

Woods, Michael

2011-01-26T23:59:59.000Z

266

Hybrid fiber-rod laser  

DOE Patents (OSTI)

Single, or near single transverse mode waveguide definition is produced using a single homogeneous medium to transport both the pump excitation light and generated laser light. By properly configuring the pump deposition and resulting thermal power generation in the waveguide device, a thermal focusing power is established that supports perturbation-stable guided wave propagation of an appropriately configured single or near single transverse mode laser beam and/or laser pulse.

Beach, Raymond J.; Dawson, Jay W.; Messerly, Michael J.; Barty, Christopher P. J.

2012-12-18T23:59:59.000Z

267

Laser ablation-inductively coupled plasma-mass spectrometry: Examinations of the origins of polyatomic ions and advances in the sampling of particulates  

SciTech Connect

This dissertation provides a general introduction to Inductively coupled plasma-mass spectrometry (ICP-MS) and laser ablation (LA) sampling, with an examination of analytical challenges in the employment of this technique. It discusses the origin of metal oxide ions (MO+) in LA-ICP-MS, as well as the effect of introducing helium and nitrogen to the aerosol gas flow on the formation of these polyatomic interferences. It extends the study of polyatomic ions in LA-ICP-MS to metal argide (MAr+) species, an additional source of possible significant interferences in the spectrum. It describes the application of fs-LA-ICP-MS to the determination of uranium isotope ratios in particulate samples.

Witte, Travis

2011-11-30T23:59:59.000Z

268

Laser system using regenerative amplifier  

DOE Patents (OSTI)

High energy laser system using a regenerative amplifier, which relaxes all constraints on laser components other than the intrinsic damage level of matter, so as to enable use of available laser system components. This can be accomplished by use of segmented components, spatial filters, at least one amplifier using solid state or gaseous media, and separated reflector members providing a long round trip time through the regenerative cavity, thereby allowing slower switching and adequate time to clear the spatial filters, etc. The laser system simplifies component requirements and reduces component cost while providing high energy output.

Emmett, John L. (Pleasanton, CA)

1980-01-01T23:59:59.000Z

269

Laser system using regenerative amplifier  

DOE Patents (OSTI)

High energy laser system is disclosed using a regenerative amplifier, which relaxes all constraints on laser components other than the intrinsic damage level of matter, so as to enable use of available laser system components. This can be accomplished by use of segmented components, spatial filters, at least one amplifier using solid state or gaseous media, and separated reflector members providing a long round trip time through the regenerative cavity, thereby allowing slower switching and adequate time to clear the spatial filters, etc. The laser system simplifies component requirements and reduces component cost while providing high energy output. 10 figs.

Emmett, J.L.

1980-03-04T23:59:59.000Z

270

Laser Cooling of Trapped Ions.  

Science Conference Proceedings (OSTI)

... period, so it can be assumed to give an in- stantaneous impulse to the ... In sympathetic laser cooling, two different ion species are loaded into a trap. ...

2002-11-15T23:59:59.000Z

271

Coherent instabilities in random lasers  

SciTech Connect

A numerical study is presented of random lasers as a function of the pumping rate above the threshold for lasing. Depending on the leakiness of the system resonances, which is typically larger in random lasers compared to conventional lasers, we observe that the stationary lasing regime becomes unstable above a second threshold. Coherent instabilities are observed as self pulsation at a single frequency of the output intensity, population inversion, as well as the atomic polarization. We find these Rabi oscillations have the same frequency everywhere in the random laser despite the fact that the field intensity strongly depends on the spatial location.

Andreasen, Jonathan; Sebbah, Patrick; Vanneste, Christian [Laboratoire de Physique de la Matiere Condensee, CNRS UMR 6622, Universite de Nice-Sophia Antipolis, Parc Valrose, F-06108, Nice Cedex 02 (France)

2011-08-15T23:59:59.000Z

272

Single-exciton nanocrystal laser  

SciTech Connect

A laser system employing amplification via a single exciton regime and to optical gain media having single exciton amplification is provided.

Klimov, Victor I. (Los Alamos, NM); Ivanov, Sergei A. (Albuquerque, NM)

2012-01-17T23:59:59.000Z

273

Theory of Semiconductor Laser Cooling .  

E-Print Network (OSTI)

??Recently laser cooling of semiconductors has received renewed attention, with the hope that a semiconductor cooler might be able to achieve cryogenic temperatures. In order (more)

Rupper, Greg

2010-01-01T23:59:59.000Z

274

Laser welding of aluminum alloys  

DOE Green Energy (OSTI)

Recent interest in reducing the weight of automobiles to increase fuel mileage has focused attention on the use of aluminum and associated joining technologies. Laser beam welding is one of the more promising methods for high speed welding of aluminum. Consequently, substantial effort has been expended in attempting to develop a robust laser beam welding process. Early results have not been very consistent in the process requirements but more definitive data has been produced recently. This paper reviews the process parameters needed to obtain consistent laser welds on 5,000 series aluminum alloys and discusses the research necessary to make laser processing of aluminum a reality for automotive applications.

Leong, K.H.; Sabo, K.R.; Sanders, P.G. [Argonne National Lab., IL (United States). Technology Development Div.; Spawr, W.J.

1997-03-01T23:59:59.000Z

275

Synchronization in semiconductor laser rings  

E-Print Network (OSTI)

We examine the dynamics of semiconductor lasers coupled in a ring configuration. The lasers, which have stable output intensity when isolated, behave chaotically when coupled unidirectionally in a closed chain. In this way, we show that neither feedback nor bidirectional coupling is necessary to induce chaotic dynamics at the laser output. We study the synchronization phenomena arising in this particular coupling architecture, and discuss its possible application to chaos-based communications. Next, we extend the study to bidirectional coupling and propose an appropriate technique to optical chaos encryption/decryption in closed chains of mutually coupled semiconductor lasers.

Javier M. Buldu; M. C. Torrent; Jordi Garcia-Ojalvo

2006-10-06T23:59:59.000Z

276

Laser Processing and Hard Coatings  

Science Conference Proceedings (OSTI)

Mar 5, 2013 ... Advances in Surface Engineering: Alloyed and Composite Coatings II: Laser Processing and Hard Coatings Sponsored by: TMS Materials...

277

Commercial application of laser fusion  

SciTech Connect

The fundamentals of laser-induced fusion, some laser-fusion reactor concepts, and attendant means of utilizing the thermonuclear energy for commercial electric power generation are discussed. Theoretical fusion-pellet microexplosion energy release characteristics are described and the effects of pellet design options on pellet-microexplosion characteristics are discussed. The results of analyses to assess the engineering feasibility of reactor cavities for which protection of cavity components is provided either by suitable ablative materials or by diversion of plasmas by magnetic fields are presented. Two conceptual laser-fusion electric generating stations, based on different laser-fusion reactor concepts, are described.

Booth, L.A.

1976-01-01T23:59:59.000Z

278

Industry Related Projects [Laser Applications Laboratory] - Nuclear  

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

Industry Related Projects Industry Related Projects Capabilities Engineering Experimentation Reactor Safety Experimentation Aerosol Experiments System Components Laser Applications Overview Laser Oil & Gas Well Drilling Laser Heat Treatment Laser Welding of Metals On-line Monitoring Laser Beam Delivery Laser Glazing of Railroad Rails High Power Laser Beam Delivery Decontamination and Decommissioning Refractory Alloy Welding Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Laser Applications Laboratory Industry related projects Bookmark and Share LASER OIL & GAS WELL DRILLING Using high-power lasers to drill and complete gas & oil wells LASER HEAT TREATMENT Optimization of laser beam heat treatment (Caterpillar and USCAR)

279

Atomic vapor laser isotope separation process  

DOE Patents (OSTI)

A laser spectroscopy system is utilized in an atomic vapor laser isotope separation process. The system determines spectral components of an atomic vapor utilizing a laser heterodyne technique. 23 figs.

Wyeth, R.W.; Paisner, J.A.; Story, T.

1990-08-21T23:59:59.000Z

280

Single mode pulsed dye laser oscillator  

DOE Patents (OSTI)

A single mode pulsed dye laser oscillator is disclosed. The dye laser oscillator provides for improved power efficiency by reducing the physical dimensions of the overall laser cavity, which improves frequency selection capability. 6 figs.

Hackel, R.P.

1992-11-24T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Laser beam alignment apparatus and method  

DOE Patents (OSTI)

The disclosure relates to an apparatus and method for laser beam alignment. Thermoelectric properties of a disc in a laser beam path are used to provide an indication of beam alignment and/or automatic laser alignment.

Gruhn, Charles R. (Martinez, CA); Hammond, Robert B. (Los Alamos, NM)

1981-01-01T23:59:59.000Z

282

LASER INDUCED FLUORESCENCE OF TRAPPED MOLECULAR IONS  

E-Print Network (OSTI)

System Laser Power Measurement Wavelength Calibration SystemLaser Power Measurement Wavelength Calibration PAGE Fluorescence Detection Systemmeasurement system. The actual time for initiation of the detection gate with respect to the laser

Grieman, Frederick Joseph.

2010-01-01T23:59:59.000Z

283

Modeling Pulsed Laser Melting of Embedded Nanoparticles  

E-Print Network (OSTI)

2 Model of Pulsed Laser Melting 2.1 Experimental Systemto be Modeled 2.2 Laser Absorption . . . . . . . . . . .a prototypical 0.3 J/cm 2 laser ?uence PLM at 0.5 J/m 2 Ge-

Sawyer, Carolyn Anne

2013-01-01T23:59:59.000Z

284

Ms Linda Cerrone | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Ms. Linda Cerrone Ms. Linda Cerrone 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 Ms. Linda Cerrone Print Text Size: A A A RSS Feeds FeedbackShare Page Cerrone Program Support Specialist Scientific User Facilities Division 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: Linda.Cerrone@science.doe.gov Phone: (301) 903-0064 or (301) 903-0065 Fax: (301) 903-1690 Ms. Cerrone worked as administrative support specialist/office manager within the Department of Energy's (DOE's) Office of Independent

285

U-032: Microsoft Security Bulletin Windows TCP/IP MS11-083 - Critical |  

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

32: Microsoft Security Bulletin Windows TCP/IP MS11-083 - 32: Microsoft Security Bulletin Windows TCP/IP MS11-083 - Critical U-032: Microsoft Security Bulletin Windows TCP/IP MS11-083 - Critical November 9, 2011 - 1:00pm Addthis PROBLEM: Microsoft Security Bulletin Windows TCP/IP MS11-083 - Critical. PLATFORM: Windows XP Service Pack 3 Windows XP Professional x64 Edition Service Pack 2 Windows Server 2003 Service Pack 2 Windows Server 2003 x64 Edition Service Pack 2 Active Directory Windows Server 2003 with SP2 for Itanium-based Systems Windows Vista Service Pack 2 Windows Vista x64 Edition Service Pack 2 Windows Server 2008 for 32-bit Systems Service Pack 2 Windows Server 2008 for x64-based Systems Service Pack 2 Windows 7 for 32-bit Systems Windows 7 for 32-bit Systems Service Pack 1 Windows 7 for x64-based Systems

286

Mexico FL GA SC AL MS LA TX AR TN TN  

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

2005 Hurricanes on the Natural Gas Industry in the Gulf of Mexico Region Mexico FL GA SC AL MS LA TX AR TN TN Katrina - Cumulative wind > 39 mph Katrina - Cumulative wind > 73 mph...

287

Modern Methods for Lipid AnalysisChapter 5 Analysis of Fatty Acids by APCI-MS  

Science Conference Proceedings (OSTI)

Modern Methods for Lipid Analysis Chapter 5 Analysis of Fatty Acids by APCI-MS Methods and Analyses eChapters Methods - Analyses Books AOCS Press 9906940E971125747386725393F5E58E AOCS Press Downloadable pdf ...

288

Copper vapor laser modular packaging assembly  

DOE Patents (OSTI)

A modularized packaging arrangement for one or more copper vapor lasers and associated equipment is disclosed herein. This arrangement includes a single housing which contains the laser or lasers and all their associated equipment except power, water and neon, and means for bringing power, water, and neon which are necessary to the operation of the lasers into the container for use by the laser or lasers and their associated equipment.

Alger, Terry W. (Tracy, CA); Ault, Earl R. (Dublin, CA); Moses, Edward I. (Castro Valley, CA)

1992-01-01T23:59:59.000Z

289

Copper vapor laser modular packaging assembly  

DOE Patents (OSTI)

A modularized packaging arrangement for one or more copper vapor lasers and associated equipment is disclosed herein. This arrangement includes a single housing which contains the laser or lasers and all their associated equipment except power, water and neon, and means for bringing power, water, and neon which are necessary to the operation of the lasers into the container for use by the laser or lasers and their associated equipment. 2 figs.

Alger, T.W.; Ault, E.R.; Moses, E.I.

1992-12-01T23:59:59.000Z

290

Mapping the Subcellular Proteome of Shewanella oneidensis MR-1 using Sarkosyl-based fractionation and LC-MS/MS protein identification  

Science Conference Proceedings (OSTI)

A simple and effective subcellular proteomic method for fractionation and analysis of gram-negative bacterial cytoplasm, periplasm, inner, and outer membranes was applied to Shewanella oneidensis to gain insight into its subcellular architecture. A combination of differential centrifugation, Sarkosyl solubilization, and osmotic lysis was used to prepare subcellular fractions. Global differences in protein fractions were observed by SDS PAGE and heme staining, and tryptic peptides were analyzed using high-resolution LC-MS/MS. Compared to crude cell lysates, the fractionation method achieved a significant enrichment (average ~2-fold) in proteins predicted to be localized to each subcellular fraction. Compared to other detergent, organic solvent, and density-based methods previously reported, Sarkosyl most effectively facilitated separation of the inner and outer membranes and was amenable to mass spectrometry, making this procedure ideal for probing the subcellular proteome of gram-negative bacteria via LC-MS/MS. With 40% of the observable proteome represented, this study has provided extensive information on both subcellular architecture and relative abundance of proteins in S. oneidensis and provides a foundation for future work on subcellular organization and protein-membrane interactions in other gram-negative bacteria.

Brown, Roslyn N.; Romine, Margaret F.; Schepmoes, Athena A.; Smith, Richard D.; Lipton, Mary S.

2010-07-19T23:59:59.000Z

291

Microsoft PowerPoint - SRNL-MS-2010-00070_Flach_S08.ppt  

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

0 0 Modeling of Engineered Systems in the Vadose Zone Greg Flach 13 April 2010 Richland WA Performance Assessment Community of Practice Technical Exchange 2 SRNL-MS-2010-00070 Outline Engineered Systems at the Savannah River Site Key failure / degradation modes Modeling philosophy Modeling practice Opportunities for ASCEM and CBP 3 SRNL-MS-2010-00070 Engineered systems Solid waste disposal, E-area

292

Guideline for the Procurement of General Electric MS 9001 Models B/E Gas Turbine Parts  

Science Conference Proceedings (OSTI)

In recent years, a number of aftermarket component suppliers have begun offering replacement first, second, and third stage buckets and nozzles for the General Electric (GE) MS 9001B and its related newer version MS 9001E gas turbine, more commonly referred to as the 9B and 9E models. Several different designs, materials, and casting processes have been offered for these components for operation at different full-load firing temperatures. This procurement guideline is intended for use by power producers ...

2008-03-03T23:59:59.000Z

293

Guideline for the Procurement of General Electric MS6001 Model B Gas Turbine Parts  

Science Conference Proceedings (OSTI)

In recent years, a number of aftermarket component suppliers have begun offering replacement 1st, 2nd, and 3rd stage buckets and nozzles for the General Electric (GE) MS6001 Model B gas turbine. Several different designs, materials, and casting processes have been offered for these components for operation over at different peak firing temperatures. This procurement guideline is intended to provide owners with the requirements necessary to procure all three stages of buckets and nozzles for a GE MS6001 M...

2007-03-22T23:59:59.000Z

294

NIST Complete hemispherical infrared laser-based ...  

Science Conference Proceedings (OSTI)

... A custom instrument, the Complete Hemispherical infrared Laser-based Reflectometer ... using light input from a selection of lasers covering the ...

2010-10-05T23:59:59.000Z

295

Iodine Stabilized Helium-Neon Laser  

Science Conference Proceedings (OSTI)

... stabilized lasers or spectral lamps that have been recommended for use by international consensus. The iodine stabilized helium-neon laser is just ...

296

Laser-Induced Breakdown Spectroscopy Research Facility  

LIBS Research User Facility is focused on collaborative research in laser spark spectroscopy, laser ablation, and the development of techniques for application to ...

297

Compact Alignment for Diagnostic Laser Beams  

Physicist and optical engineer Mike Rushford developed the laser beam . centering and pointing system. The laser beam . centering and pointing system

298

Laser research shows promise for cancer treatment  

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

treatment Laser research shows promise for cancer treatment Scientists have observed for the first time how a laser penetrates dense, electron-rich plasma to generate ions. August...

299

Ytterbium-doped borate fluoride laser crystals and lasers  

DOE Patents (OSTI)

A new class of solid state laser crystals and lasers are formed from Yb-doped borate fluoride host crystals. The general formula for the host crystals is MM'(BO.sub.3)F, where M, M' are monovalent, divalent aria trivalent metal cations. A particular embodiment of the invention is Yb-doped BaCaBO.sub.3 F (Yb:BCBF). BCBF and some of the related derivative crystals are capable of nonlinear frequency conversion, whereby the fundamental of the laser is converted to a longer or shorter wavelength. In this way, these new crystals can simultaneously serve as self-frequency doubling crystals and laser materials within the laser resonator.

Schaffers, Kathleen I. (Pleasanton, CA); DeLoach, Laura D. (Manteca, CA); Payne, Stephen A. (Castro Valley, CA); Keszler, Douglas A. (Corvallis, OK)

1997-01-01T23:59:59.000Z

300

Compact laser amplifier system  

DOE Patents (OSTI)

A compact laser amplifier system is described in which a plurality of face-pumped annular disks, aligned along a common axis, independently radially amplify a stimulating light pulse. Partially reflective or lasing means, coaxially positioned at the center of each annualar disk, radially deflects a stimulating light directed down the common axis uniformly into each disk for amplification, such that the light is amplified by the disks in a parallel manner. Circumferential reflecting means coaxially disposed around each disk directs amplified light emission, either toward a common point or in a common direction. (Official Gazette)

Carr, R.B.

1974-02-26T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Unidirectional ring lasers  

DOE Patents (OSTI)

Unidirectional ring lasers formed by integrating nonreciprocal optical elements into the resonant ring cavity is disclosed. These optical elements either attenuate light traveling in a nonpreferred direction or amplify light traveling in a preferred direction. In one preferred embodiment the resonant cavity takes the form of a circle with an S-shaped crossover waveguide connected to two points on the interior of the cavity such that light traveling in a nonpreferred direction is diverted from the cavity into the crossover waveguide and reinjected out of the other end of the crossover waveguide into the cavity as light traveling in the preferred direction. 21 figs.

Hohimer, J.P.; Craft, D.C.

1994-09-20T23:59:59.000Z

302

Global Laser Enrichment  

E-Print Network (OSTI)

APPLICATION PUBLIC RESPONSES GE-Hitachi Global Laser Enrichment LLC (GLE) hereby submits the additional information requested in the November 19, 2009 letter. Enclosure 1 of this letter contains the responses the questions. A separate letter has been submitted that contains a non-public version of these responses, which contains Export-Controlled and Security-Related Information. If there are any questions regarding this letter and its contents, please do not hesitate to contact myself, or Julie Olivier of my staff at 910-819-4799 or at Julie.Olivier@ge.com.

Uranium Enrichment Branch; Albert E. Kennedy; Albert E. Kennedy; Tammy Orr (gle

2009-01-01T23:59:59.000Z

303

Global Laser Enrichment  

E-Print Network (OSTI)

PUBLIC VERSION GE-Hitachi Global Laser Enrichment LLC (GLE) hereby submits revision 2 of the GLE License Application. Enclosure 1 contains revised Request for Additional Information responses. Enclosure 2 contains revised chapters 1, 2, 3, 5, 7, and 11 of the GLE License Application. Enclosure 3 contains the revised pubic version of the Decommissioning Funding Plan. Non-Public versions of the revised License Application and the Decommissioning Funding Plan have been prepared and will be submitted under separate enclosure. If there are any questions regarding this letter and its contents, please do not hesitate to contact me at 910-819-4799 or at

Julie Olivier; Brian Smith Chief; Uranium Enrichment Branch; Julie Olivier; Tim Johnson (nrc; Tammy Orr (gle; Lori Butler (geh; Jerry Head (geh; Patricia Campbell (geh; Bob Crate (gle; Ken Givens (gle; Tom Owens (gle

2010-01-01T23:59:59.000Z

304

Civilian applications of laser fusion  

DOE Green Energy (OSTI)

The commercial aspects of laser fusion were evaluated in an attempt to relate the end products (neutrons and energy) to significant commercial applications. It was found that by far the largest markets and highest payoffs for laser fusion are associated with electric power production. Hence, much of this report evaluates the prospects of producing commercial electricity with laser fusion. To this end, we have described in detail a new and promising laser fusion concept--the liquid lithium waterfall reactor. In addition, we have taken the most attractive features from our laser studies and used them to compare laser fusion to other long-range sources of energy (breeder reactors and solar energy). It is our contention that all three sources of electrical energy should be developed to the point where the final selections are primarily based on economic competitiveness. The other potential applications of laser fusion (fissile fuel production, synthetic fuel production, actinide burning, and propulsion) are also discussed, and our preliminary plan for the engineering development of laser fusion is presented.

Maniscalco, J.; Blink, J.; Buntzen, R.; Hovingh, J.; Meier, W.; Monsler, M.; Walker, P.

1977-11-17T23:59:59.000Z

305

Civilian applications of laser fusion  

SciTech Connect

The commercial aspects of laser fusion were evaluated in an attempt to relate the end products (neutrons and energy) to significant commercial applications. We have found that by far the largest markets and highest payoffs for laser fusion are associated with electric power production. Hence, much of this report evaluates the prospects of producing commercial electricity with laser fusion. To this end, we have described in detail a new and promising laser fusion concept--the liquid lithium waterfall reactor. In addition, we have taken the most attractive features from our laser fusion studies and used them to compare laser fusion to other long-range sources of energy (breeder reactors and solar energy). It is our contention that all three sources of electrical energy should be developed to the point where the final selections are primarily based on economic competitiveness. The other potential applications of laser fusion (fissile fuel production, synthetic fuel production, actinide burning, and propulsion) are also discussed, and our preliminary plan for the engineering development of laser fusion is presented.

Maniscalco, J.; Blink, J.; Buntzen, R.; Hovingh, J.; Meier, W.; Monsler, M.; Walker, P.

1978-08-14T23:59:59.000Z

306

Laser program annual report 1983  

Science Conference Proceedings (OSTI)

In the 1983 Laser Program Annual Report we present the accomplishments and unclassified activities of the Laser Program at Lawrence Livermore National laboratory (LLNL) for the year 1983. It should be noted that the report, of necessity, is a summary, and more detailed expositions of the research can be found in the many publications and reports authored by staff members in the Laser Program. The purpose of this report is to present our work in a brief form, but with sufficient depth to provide an overview of the analytical and experimental aspects of the LLNL Inertial-Confinement Fusion (ICF) Program. The format of this report is basically the same as that of previous years. Section 1 is an overview and highlights the important accomplishments and directions of the Program. Sections 2 through 7 provide the detailed information on the various major parts of the Program: Laser Systems and Operations, Target Design, Target Fabrication, Fusion Experiments, Laser Research and Development, and Energy Applications.

Hendricks, C.D.; Rufer, M.L.; Murphy, P.W. (eds.)

1984-06-01T23:59:59.000Z

307

Laser fusion experiments at LLL  

Science Conference Proceedings (OSTI)

These notes present the experimental basis and status for laser fusion as developed at LLL. Two other chapters, one authored by K.A. Brueckner and the other by C. Max, present the theoretical implosion physics and laser plasma interaction physics. The notes consist of six sections. The first is an introductory section which provides some of the history of inertial fusion and a simple explanation of the concepts involved. The second section presents an extensive discussion of diagnostic instrumentation used in the LLL Laser Fusion Program. The third section is a presentation of laser facilities and capabilities at LLL. The purpose here is to define capability, not to derive how it was obtained. The fourth and fifth sections present the experimental data on laser-plasma interaction and implosion physics. The last chapter is a short projection of the future.

Ahlstrom, H.G.

1980-06-16T23:59:59.000Z

308

Laser-frequency multiplication  

SciTech Connect

A high quality mode locked pulse train was obtained at 9.55 micrometers, the CO2 wavelength chosen for frequency doubling into the atmospheric window at 4.8 micrometers. The pulse train consists of a 3 micro sec burst of 1.5 nsec pulses separated by 40 nsec, in a TEM(00) mode and with a total energy of 100 mJ. The pulse intensity without focussing is about 3 MW/sq.cm., already quite close to the target intensity of 10 MW/sq.cm. for frequency doubling in a AgGaSe2 crystal. The mode-locked train is obtained by intracavity modulation at 12.5 MHz using a germanium crystal driven with a power of about 30 Watts. Line selection is achieved firstly by the use of a 0.92 mm thick CaF2 plate at the Brewster angle within the cavity, which completely suppresses 10.6 micrometer band radiation. Secondly, a particular rotational line, the P20 at 9.55 micrometers, is selected by the injection of a continuous beam is mode-matched to the pulsed laser cavity using a long focal length lens, and for best line-locking it is necessary to fine tune the length of the pulsed laser resonator. Injection causes substantial depression of the gain switched spike.

Not Available

1991-11-01T23:59:59.000Z

309

Laser fusion diagnostics  

SciTech Connect

The current status of the capability of laser fusion diagnostics is reviewed. Optical and infrared streak cameras provide one time resolution measurement capability of less than 10 ps, while x-ray streak cameras provide 15 ps time resolution in the range of about 1--30 keV presently. Time integrated spatial resolutions of 1 ..mu..m are provided with a variety of optical techniques. Ultraviolet holographic interferometry has measured electron densities above 10/sup 21/ cm/sup -3/ with 1 ..mu..m spatial resolution and 15 ps temporal resolution. X-ray microscopes provide 3 ..mu..m time integrated resolution and the x-ray streak pinhole camera has 6 ..mu..m spatial resolution. Development of the framing camera has thus far provided 50 ..mu..m spatial resolution with 125 ps frame duration and the third order reconstruction of zone plate images has provided 3 ..mu..m resolutions for alpha particles. Time integrated measurements of x-rays span the range shown. Finally, the new Shiva neutron spectrometer increases the energy resolution capability of that technique to 25 keV for 14-MeV neutrons. These combined capabilities provide a unique set of diagnostics for the detailed measurement of the interaction of laser light with targets and a subsequent performance of those targets.

Coleman, L.W.

1978-05-09T23:59:59.000Z

310

Relativistic Laser Plasma Research for Fast Ignition Laser Fusion  

E-Print Network (OSTI)

Reviewed are the present status and future prospects of the laser fusion research at the ILE (Institute of Laser Engineering) Osaka. The Gekko XII and Peta Watt laser system have been operated for investigating the fast ignition, the relativistic laser plasma interactions and so on. In particular, the fast ignition experiments with cone shell target have been in progress as the UK and US-Japan collaboration programs. In the experiments, the imploded high density plasmas are heated by irradiating 500 J level peta watt laser pulse. The thermal neutron yield is found to increase by three orders of magnitude by injecting the peta watt laser into the cone shell target. Transport of relativistic high density electron is the critical issue as the basic physics for understanding the dense plasma heating process. By the theory, simulation and experiment, the collective phenomena in the interactions of intense relativistic electron current with dense plasmas has been investigated to find the formation of self organized flow as the result of filamentation (Weibel) instability. Through the present understanding, the new project, FIREX-I has started recently to prove the principle of the fast ignition scheme. Keywords: fast ignition, peta watt laser, relativistic electron, weibel instability

Mima Kunioki; Tanaka Kazuo. A; Kodama Ryosuke; Johzaki Tomohiro; Nagatomo Hideo; Shiraga Hiroyuki; Miyanaga Noriaki; Azechi Hiroshi; Nakai Mitsuo; Norimatsu Takayoshi; Nagai Keiji; Sunahara Atsushi; Nishihara Katsunobu; Taguchi Toshihiro; Sakagami Hitoshi; Sentoku Yasuhiko; Ruhl Hartmut

2003-01-01T23:59:59.000Z

311

Laser Welding and Post Weld Treatment of Modified 9Cr-1MoVNb Steel [Laser  

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

Laser Welding of Metals > Laser Welding of Metals > Laser Welding and Post Weld Treatment of Modified 9Cr-1MoVNb Steel Capabilities Engineering Experimentation Reactor Safety Experimentation Aerosol Experiments System Components Laser Applications Overview Laser Oil & Gas Well Drilling Laser Heat Treatment Laser Welding of Metals On-line Monitoring Laser Beam Delivery Laser Glazing of Railroad Rails High Power Laser Beam Delivery Decontamination and Decommissioning Refractory Alloy Welding Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Laser Applications Laboratory Laser Welding of Metals Laser Welding and Post Weld Treatment of Modified 9Cr-1MoVNb Steel Zhiyue Xu Nuclear Engineering Division of Argonne National Laboratory

312

Limits to laser advancement: Fundamental and otherwise  

SciTech Connect

A discussion was held to address constraints affecting the advancement of laser technology and applications. Several issues were raised such as the regulatory issues of safety and standards. The thermal constraints on laser materials affecting the laser's overall efficiency etc. were also considered. The issue of scientific secrecy relative to recent advances in laser technology was also brought up. (AIP)

Guenther, A.H.

1987-09-25T23:59:59.000Z

313

Variable emissivity laser thermal control system  

DOE Patents (OSTI)

A laser thermal control system for a metal vapor laser maintains the wall temperature of the laser at a desired level by changing the effective emissivity of the water cooling jacket. This capability increases the overall efficiency of the laser. 8 figs.

Milner, J.R.

1994-10-25T23:59:59.000Z

314

Physics of short-wavelength-laser design  

Science Conference Proceedings (OSTI)

The physics and design of vuv and soft x-ray lasers pumped by ICF class high intensity infrared laser drivers are described (for example, the SHIVA laser facility at LLNL). Laser design and physics issues are discussed in the case of a photoionization pumping scheme involving Ne II and line pumping schemes involving H-like and He-like neon.

Hagelstein, P.L.

1981-01-01T23:59:59.000Z

315

Heterodyne laser instantaneous frequency measurement system  

DOE Patents (OSTI)

A heterodyne laser instantaneous frequency measurement system is disclosed. The system utilizes heterodyning of a pulsed laser beam with a continuous wave laser beam to form a beat signal. The beat signal is processed by a controller or computer which determines both the average frequency of the laser pulse and any changes or chirp of the frequency during the pulse.

Wyeth, Richard W. (Livermore, CA); Johnson, Michael A. (Pleasanton, CA); Globig, Michael A. (Livermore, CA)

1990-01-01T23:59:59.000Z

316

Heterodyne laser instantaneous frequency measurement system  

DOE Patents (OSTI)

A heterodyne laser instantaneous frequency measurement system is disclosed. The system utilizes heterodyning of a pulsed laser beam with a continuous wave laser beam to form a beat signal. The beat signal is processed by a controller or computer which determines both the average frequency of the laser pulse and any changes or chirp of th frequency during the pulse.

Wyeth, Richard W. (Livermore, CA); Johnson, Michael A. (Pleasanton, CA); Globig, Michael A. (Livermore, CA)

1989-01-01T23:59:59.000Z

317

Nanosecond component in a femtosecond laser pulse  

Science Conference Proceedings (OSTI)

Experimental and computational results show that the coherent microwave scattering from a laser-induced plasma can be used for measuring the quality of a fs laser pulse. The temporal dynamics of the microwave scattered signal from the fs-laser induced plasma can be related to the effect of nanosecond tail of the fs laser pulse.

Shneider, M. N. [Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544 (United States); Semak, V. V. [ARL, Pennsylvania State University, University Park, Pennsylvania 16801 (United States); Zhang Zhili [Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville, Tennessee 37996 (United States)

2012-11-15T23:59:59.000Z

318

Transition-metal-doped chalcogenide lasers  

Science Conference Proceedings (OSTI)

Broadly tunable mid-infrared lasers are desirable for a number of scientific, remote-sensing, and military applications. Recently, Cr2+-doped chalcogenide lasers have emerged as an attractive source of tunable laser radiation in the 2-3.4-m ... Keywords: Cr:CdMnTe, Cr:CdSe, Cr:ZnS, Cr:ZnSe, Fe:ZnSe, chalcogenide, continuous-wave laser, diode-pumped solid-state laser, mode-locked laser, solid-state laser, transition-metal ion

Timothy J. Carrig

2002-07-01T23:59:59.000Z

319

ANALYSIS OF SULFONATES IN AQUEOUS SAMPLES BY ION-PAIR LC/ESI-MS/MS WITH IN-SOURCE CID FOR ADDUCT PEAK ELIMINATION  

SciTech Connect

Determination of low-molecular-weight organic sulfonates (e.g. taurine and cysteic acid) in aqueous solutions is important in many applications of biological, environmental and pharmaceutical sciences. These compounds are difficult to be determined by commonly used reversed-phase liquid chromatographic separation combined with UV-Visible detection because of their high solubility and the lack chromophoric moieties. Here the authors report a method combining ion-pair liquid chromatography and electrospray ionization tandem mass spectrometry (IPLC/ESI-MS/MS)for determining sulfonates. The ability of low-molecular-weight sulfonates to form ion-pairs with quaternary ammonium cations in aqueous solutions allowed LC separation with a C{sub 18} column. Detection of the sulfonates was accomplished with ESI-MS that lends a universal mode of mass detection for polar, water soluble compounds. An in-source collision induced dissociation (CID) was applied to eliminate the adduct peaks in mass spectra. Characteristic marker ions showed in the second stage mass spectra lent a method for identifying sulfonates.

OUYANG,S.; VAIRAVAMURTHY,M.A.

1999-06-13T23:59:59.000Z

320

Surface Decontamination [Laser Applications Laboratory] - Nuclear  

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

Surface Decontamination Surface Decontamination Capabilities Engineering Experimentation Reactor Safety Experimentation Aerosol Experiments System Components Laser Applications Overview Laser Oil & Gas Well Drilling Laser Heat Treatment Laser Welding of Metals On-line Monitoring Laser Beam Delivery Laser Glazing of Railroad Rails High Power Laser Beam Delivery Decontamination and Decommissioning Refractory Alloy Welding Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Laser Applications Laboratory Surface Decontamination Project description: Laser processing technology for decontamination of surfaces. Category: internal R&D project Bookmark and Share Fiber-optic beam-delivery systems for multi-kilowatt Nd:YAG laser beams are

Note: This page contains sample records for the topic "laser ms bransby" 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

Laser weld jig  

SciTech Connect

A system is provided for welding a workpiece (10, FIG. 1) along a predetermined weld line (12) that may be of irregular shape, which includes the step of forming a lip (32) on the workpiece to extend parallel to the weld line, and moving the workpiece by engaging the lip between a pair of rotatable members (34, 36). Rotation of one of the members at a constant speed, causes the workpiece to move so that all points on the weld line sequentially pass a fixed point in space (17) at a constant speed, so that a laser welding beam can be directed at that fixed point to form a weld along the weld line. The workpiece can include a reuseable jig (24) forming the lip, and with the jig constructed to detachably hold parts (22, 20) to be welded at a position wherein the weld line of the parts extends parallel to the lip on the jig.

Van Blarigan, Peter (Livermore, CA); Haupt, David L. (Livermore, CA)

1982-01-01T23:59:59.000Z

322

Range imaging laser radar  

SciTech Connect

A laser source is operated continuously and modulated periodically (typicy sinusoidally). A receiver imposes another periodic modulation on the received optical signal, the modulated signal being detected by an array of detectors of the integrating type. Range to the target determined by measuring the phase shift of the intensity modulation on the received optical beam relative to a reference. The receiver comprises a photoemitter for converting the reflected, periodically modulated, return beam to an accordingly modulated electron stream. The electron stream is modulated by a local demodulation signal source and subsequently converted back to a photon stream by a detector. A charge coupled device (CCD) array then averages and samples the photon stream to provide an electrical signal in accordance with the photon stream.

Scott, Marion W. (Albuquerque, NM)

1990-01-01T23:59:59.000Z

323

Monolithic dye laser amplifier  

DOE Patents (OSTI)

A fluid dye laser amplifier for amplifying a dye beam by pump beams has a channel structure defining a channel through which a laseable fluid flows and the dye and pump beams pass transversely to one another through a lasing region. The channel structure is formed with two pairs of mutually spaced-apart and mutually confronting glass windows, which are interlocked and make surface-contacts with one another and surround the lasing region. One of the glass window pairs passes the dye beam and the other passes the pump beams therethrough and through the lasing region. Where these glass window pieces make surface-contacts, glue is used to join the pieces together to form a monolithic structure so as to prevent the dye in the fluid passing through the channel from entering the space between the mutually contacting glass window pieces.

Kuklo, T.C.

1993-03-30T23:59:59.000Z

324

Monolithic dye laser amplifier  

DOE Patents (OSTI)

A fluid dye laser amplifier for amplifying a dye beam by pump beams has a channel structure defining a channel through which a laseable fluid flows and the dye and pump beams pass transversely to one another through a lasing region. The channel structure is formed with two pairs of mutually spaced-apart and mutually confronting glass windows, which are interlocked and make surface-contacts with one another and surround the lasing region. One of the glass window pairs passes the dye beam and the other passes the pump beams therethrough and through the lasing region. Where these glass window pieces make surface-contacts, glue is used to join the pieces together to form a monolithic structure so as to prevent the dye in the fluid passing through the channel from entering the space between the mutually contacting glass window pieces.

Kuklo, Thomas C. (Ripon, CA)

1993-01-01T23:59:59.000Z

325

Circular free-electron laser  

DOE Patents (OSTI)

A high efficiency, free electron laser is described utilizing a circular relativistic electron beam accelerator and a circular whispering mode optical waveguide for guiding optical energy in a circular path in the circular relativistic electron beam accelerator such that the circular relativistic electron beam and the optical energy are spatially contiguous in a resonant condition for free electron laser operation. Both a betatron and synchrotron are disclosed for use in the present invention. A free electron laser wiggler is disposed around the circular relativistic electron beam accelerator for generating a periodic magnetic field to transform energy from the circular relativistic electron beam to optical energy.

Brau, C.A.; Kurnit, N.A.; Cooper, R.K.

1982-01-26T23:59:59.000Z

326

Circular free-electron laser  

DOE Patents (OSTI)

A high efficiency, free electron laser utilizing a circular relativistic electron beam accelerator and a circular whispering mode optical waveguide for guiding optical energy in a circular path in the circular relativistic electron beam accelerator such that the circular relativistic electron beam and the optical energy are spatially contiguous in a resonant condition for free electron laser operation. Both a betatron and synchrotron are disclosed for use in the present invention. A free electron laser wiggler is disposed around the circular relativistic electron beam accelerator for generating a periodic magnetic field to transform energy from the circular relativistic electron beam to optical energy.

Brau, Charles A. (Los Alamos, NM); Kurnit, Norman A. (Santa Fe, NM); Cooper, Richard K. (Los Alamos, NM)

1984-01-01T23:59:59.000Z

327

Tuning The Laser Heater Undulator  

Science Conference Proceedings (OSTI)

The laser heater undulator for the LCLS requires different tuning techniques than the main undulators. It is a pure permanent magnet (PPM) undulator, rather than the hybrid design of the main undulators. The PPM design allows analytic calculation of the undulator fields. The calculations let errors be introduced and correction techniques be derived. This note describes how the undulator was modelled, and the methods which were found to correct potential errors in the undulator. The laser heater undulator for the LCLS is a pure permanent magnet device requiring different tuning techniques than the main undulators. In this note, the laser heater undulator is modelled and tuning techniques to compensate various errors are derived.

Wolf, Zackary

2010-12-03T23:59:59.000Z

328

Method for producing laser targets  

DOE Patents (OSTI)

An apparatus and method for producing deuterium targets or pellets of 25.mu. to 75.mu. diameter. The pellets are sliced from a continuously spun solid deuterium thread at a rate of up to 10 pellets/second. The pellets after being sliced from the continuous thread of deuterium are collimated and directed to a point of use, such as a laser activated combustion or explosion chamber wherein the pellets are imploded by laser energy or laser produced target plasmas for neutral beam injection.

Jarboe, Thomas R. (Oakland, CA); Baker, William R. (Orinda, CA)

1977-01-01T23:59:59.000Z

329

Laser ablation based fuel ignition  

DOE Patents (OSTI)

There is provided a method of fuel/oxidizer ignition comprising: (a) application of laser light to a material surface which is absorptive to the laser radiation; (b) heating of the material surface with the laser light to produce a high temperature ablation plume which emanates from the heated surface as an intensely hot cloud of vaporized surface material; and (c) contacting the fuel/oxidizer mixture with the hot ablation cloud at or near the surface of the material in order to heat the fuel to a temperature sufficient to initiate fuel ignition. 3 figs.

Early, J.W.; Lester, C.S.

1998-06-23T23:59:59.000Z

330

Protective laser beam viewing device  

SciTech Connect

A protective laser beam viewing system or device including a camera selectively sensitive to laser light wavelengths and a viewing screen receiving images from the laser sensitive camera. According to a preferred embodiment of the invention, the camera is worn on the head of the user or incorporated into a goggle-type viewing display so that it is always aimed at the area of viewing interest to the user and the viewing screen is incorporated into a video display worn as goggles over the eyes of the user.

Neil, George R.; Jordan, Kevin Carl

2012-12-18T23:59:59.000Z

331

High-performance laser processing using manipulated ultrafast laser pulses  

Science Conference Proceedings (OSTI)

We employ manipulated ultrafast laser pulses to realize microprocessing with high-performance. Efficient microwelding of glass substrates by irradiation by a double-pulse train of ultrafast laser pulses is demonstrated. The bonding strength of two photostructurable glass substrates welded by double-pulse irradiation was evaluated to be 22.9 MPa, which is approximately 22% greater than that of a sample prepared by conventional irradiation by a single pulse train. Additionally, the fabrication of hollow microfluidic channels with a circular cross-sectional shape embedded in fused silica is realized by spatiotemporally focusing the ultrafast laser beam. We show both theoretically and experimentally that the spatiotemporal focusing of ultrafast laser beam allows for the creation of a three-dimensionally symmetric spherical peak intensity distribution at the focal spot.

Sugioka, Koji; Cheng Ya; Xu Zhizhan; Hanada, Yasutaka; Midorikawa, Katsumi [RIKEN - Advanced Science Institute, Wako, Saitama 351-0198 (Japan); State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (China); RIKEN - Advanced Science Institute, Wako, Saitama 351-0198 (Japan)

2012-07-30T23:59:59.000Z

332

Laser rock Drilling Using a Superpulse CO2 Laser Beam  

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

by A Super-Pulsed CO 2 Laser Beam Z. Xu and C. B. Reed Technology Development Division, Argonne National Laboratory Argonne, Illinois 60540 R.A. Parker Packer Geoscience...

333

Laser fusion overview. [Forecasting of laser fusion feasibility  

SciTech Connect

Because of recent breakthroughs in the target area, and in the glass laser area, the scientific feasibility of laser fusion--and of inertial fusion--may be demonstrated in the early 1980's. Then the development in that time period of a suitable laser (or storage ring or other driving source) would make possible an operational inertial fusion reactor in this century. These are roughly the same time scales as projected by the Tokamak magnetic confinement approach. It thus appears that the 15-20 year earlier start by magnetic confinement fusion may be overcome. Because inertial confinement has been demonstrated, and inertial fusion reactors may operate on smaller scales than Tokamaks, laser fusion may have important technical and economic advantages.

Nuckolls, J.

1976-05-17T23:59:59.000Z

334

Laser microdrilling in the fabrication of laser fusion targets  

SciTech Connect

A brief discussion on the use and performance of laser microdrilling is given. The fabrication of a ''ball-in-plate'' fusion target is described. (MOW)

Weinstein, B.W.; Hendricks, C.D.; Weir, J.T.

1975-10-15T23:59:59.000Z

335

Laser-fusion program. Semiannual report, January--June 1973  

SciTech Connect

Brief discussions are given for each of the following areas of research covered during this report period: solid-state laser program, design analysis, component development, diagnostics, gas lasers, chemical lasers---the iodine laser, basic studies and advanced concepts, laser propagation, laser plasmas, laser fusion, isotope separation, and program resources. (MOW)

Sussman, S.S. (ed.)

1973-08-22T23:59:59.000Z

336

Ms Van T Nguyen | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Van T Nguyen Van T Nguyen 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 Ms. Van T Nguyen Print Text Size: A A A RSS Feeds FeedbackShare Page Van T. Nguyen Program Manager Facility Coordination, Metrics, and Assessment 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: Van.Nguyen@science.doe.gov Phone: (301) 903-3976 Fax: (301) 903-1690 Ms. Nguyen joined the Scientific User Facilities Division of the Office of Basic Energy Sciences (BES) in July 2008. Prior to joining BES, Ms. Nguyen

337

Matrix-assisted pulsed laser thin film deposition by using Nd: YAG laser  

Science Conference Proceedings (OSTI)

Matrix-Assisted Pulsed Laser Evaporation (MAPLE) is a deposition technique, developed from Pulsed Laser Deposition (PLD) especially well suited for producing organic/polymeric thin films, which can take advantage from using Nd:YAG laser. Depending on ...

Francesco Bloisi; Mario Barra; Antonio Cassinese; Luciano Rosario Maria Vicari

2012-01-01T23:59:59.000Z

338

Design of 10 GeV laser wakefield accelerator stages with shaped laser modes  

E-Print Network (OSTI)

DESIGN OF 10 GEV LASER WAKEFIELD ACCELERATORSTAGES WITH SHAPED LASER MODES ? E. Cormier-Michel, E.PAL framework, of 10 GeV laser plasma wake?eld ac- celerator

Cormier-Michel, Estelle

2010-01-01T23:59:59.000Z

339

The BErkeley Lab Laser Accelerator (BELLA): A 10 GeV Laser Plasma Accelerator  

E-Print Network (OSTI)

The BErkeley Lab Laser Accelerator (BELLA):A 10 GeV Laser Plasma Accelerator W.P. Leemans ' , R.of the design of a 10 GeV laser plasma accelerator (LPA)

Leemans, W.P.

2011-01-01T23:59:59.000Z

340

{sup 99}Tc bioassay by inductively coupled plasma mass spectrometry (ICP-MS)  

Science Conference Proceedings (OSTI)

A means of analyzing {sup 99}Tc in urine by inductively coupled plasma mass spectrometry (ICP-MS) has been developed. Historically, {sup 99}Tc analysis was based on the radiometric detection of the 293 keV E{sub Max} beta decay product by liquid scintillation or gas flow proportional counting. In a urine matrix, the analysis of{sup 99}Tc is plagued with many difficulties using conventional radiometric methods. Difficulties originate during chemical separation due to the volatile nature of Tc{sub 2}O{sub 7} or during radiation detection due to color or chemical quenching. A separation scheme for {sup 99}Tc detection by ICP-MS is given and is proven to be a sensitive and robust analytical alternative. A comparison of methods using radiometric and mass quantitation of {sup 99}Tc has been conducted in water, artificial urine, and real urine matrices at activity levels between 700 and 2,200 dpm/L. Liquid scintillation results based on an external standard quench correction and a quench curve correction method are compared to results obtained by ICP-MS. Each method produced accurate results, however the precision of the ICP-MS results is superior to that of liquid scintillation results. Limits of detection (LOD) for ICP-MS and liquid scintillation detection are 14.67 and 203.4 dpm/L, respectively, in a real urine matrix. In order to determine the basis for the increased precision of the ICP-MS results, the detection sensitivity for each method is derived and measured. The detection sensitivity for the {sup 99}Tc isotope by ICP-MS is 2.175 x 10{sup {minus}7} {+-} 8.990 x 10{sup {minus}9} and by liquid scintillation is 7.434 x 10{sup {minus}14} {+-} 7.461 x 10{sup {minus}15}. A difference by seven orders of magnitude between the two detection systems allows ICP-MS samples to be analyzed for a period of 15 s compared to 3,600 s by liquid scintillation counting with a lower LOD.

Lewis, L.A.

1998-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Laser sealed vacuum insulating window  

DOE Patents (OSTI)

A laser sealed evacuated window panel is comprised of two glass panes held spaced apart in relation to each other by a plurality of spherical glass beads and glass welded around the edges to provide an evacuated space between the glass panes that is completely glass sealed from the exterior. The glass welded edge seal is obtained by welding the edges of the glass panes together with a laser beam while the glass panes and bead spacers are positioned in a vacuum furnace and heated to the annealing point of the glass to avoid stress fracture in the area of the glass weld. The laser welding in the furnace can be directed around the perimeter of the galss panel by a combination of rotating the glass panel and linearly translating or aiming the laser with a relay mirror.

Benson, D.K.; Tracy, C.E.

1985-08-19T23:59:59.000Z

342

Laser program. Annual report, 1978  

SciTech Connect

This volume details the year's experiments, data, and analysis. The technology development programs required for the high performance needed in target diagnostic instrumentation and in solid state laser components are reviewed. (MOW)

Monsler, M.J.; Jarman, B.D. (eds.)

1979-03-01T23:59:59.000Z

343

Laser sealed vacuum insulation window  

SciTech Connect

A laser sealed evacuated window panel is comprised of two glass panes held spaced apart in relation to each other by a plurality of spherical glass beads and glass welded around the edges to provide an evacuated space between the glass panes that is completely glass sealed from the exterior. The glass welded edge seal is obtained by welding the edges of the glass panes together with a laser beam while the glass panes and bead spacers are positioned in a vacuum furnace and heated to the annealing point of the glass to avoid stress fracture in the area of the glass weld. The laser welding in the furnace can be directed around the perimeter of the glass panel by a combination of rotating the glass panel and linearly translating or aiming the laser with a relay mirror.

Benson, David K. (Golden, CO); Tracy, C. Edwin (Golden, CO)

1987-01-01T23:59:59.000Z

344

An electrically pumped germanium laser  

E-Print Network (OSTI)

Electrically pumped lasing from Germanium-on-Silicon pnn heterojunction diode structures is demonstrated. Room temperature multimode laser with 1mW output power is measured. Phosphorous doping in Germanium at a concentration ...

Cai, Yan

345

Laser Interferometry of Turbulent Atmosphere  

Science Conference Proceedings (OSTI)

The paper introduces a new laser interferometrybased method for diagnosis of random media by means of high-accuracy angle measurements and describes the results of its development and testing. Theoretical calculations of the dependence of the ...

Gennady Kaloshin; Igor Lukin

2012-03-01T23:59:59.000Z

346

A Well Collimated Quasi-Continuous Atom Laser  

Science Conference Proceedings (OSTI)

The Quasi-continuous Atom Laser. ... We can develop a rather complete analogy between the so-called "atom laser" and the traditional photon laser. ...

347

Alopecia: A review of laser and light therapies  

E-Print Network (OSTI)

78. Smithdeal CD. Carbon dioxide laser-assisted hairusing the Ultrapulse carbon dioxide laser handpiece.loss. Starting in 1995, carbon dioxide laser tissue ablation

Rangwala, Sophia; Rashid, Rashid M

2012-01-01T23:59:59.000Z

348

LASER-PLASMA-ACCELERATOR-BASED GAMMA GAMMA COLLIDERS  

E-Print Network (OSTI)

LASER-PLASMA-ACCELERATOR-BASED ?? COLLIDERS ? C. B.linear col- lider based on laser-plasma-accelerators arediscussed, and a laser-plasma-accelerator-based gamma-

Schroeder, C. B.

2010-01-01T23:59:59.000Z

349

Femtosecond laser processing of photovoltaic and transparent materials  

E-Print Network (OSTI)

Damage Produced by Ruby Lasers. Journal of Applied Rosenfeld A. Femtosecond laser-?induced periodic surface structures. J Laser Appl. 2012;24. [16]

Ahn, Sanghoon

2013-01-01T23:59:59.000Z

350

Laser Assisted Direct Local Synthesis of Semiconducting Nanowires  

E-Print Network (OSTI)

electrically driven lasers," Nature 421 (6920), 241-245 (Hsu, A. Bushmaker et al. , "Laser Directed Growth of Carbon-al. , "Scanning focused laser activation of carbon nanotube

RYU, SANG GIL

2010-01-01T23:59:59.000Z

351

Laser Plasma Particle Accelerators: Large Fields for Smaller Facility Sources  

E-Print Network (OSTI)

of high- gradient, laser plasma particle accelerators.accelerators that use laser-driven plasma waves. Theseleft) showing the laser (red), plasma wake density (purple-

Geddes, Cameron G.R.

2010-01-01T23:59:59.000Z

352

New Combined Laser Ablation Platform Determines Cell Wall Chemistry...  

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

ablation laser mass spectrometer molecular beam REMPI laser NREL has designed and developed a combined laser ablation pulsed sample introductionmass spectrometry platform that...

353

Time-resolved studies of particle effects in laser ablation inductively coupled plasma-mass spectrometry  

Science Conference Proceedings (OSTI)

Time resolved signals in laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) are studied to determine the influence of experimental parameters on ICP-induced fractionation effects. Differences in sample composition and morphology, i.e., ablating brass, glass, or dust pellets, have a profound effect on the time resolved signal. Helium transport gas significantly decreases large positive signal spikes arising from large particles in the ICP. A binder for pellets also reduces the abundance and amplitude of spikes in the signal. MO{sup +} ions also yield signal spikes, but these MO{sup +} spikes generally occur at different times from their atomic ion counterparts.

Perdian, D.; Bajic, S.; Baldwin, D.; Houk, R.

2007-11-13T23:59:59.000Z

354

Rf Feedback free electron laser  

DOE Patents (OSTI)

A free electron laser system and electron beam system for a free electron laser which use rf feedback to enhance efficiency. Rf energy is extracted from an electron beam by decelerating cavities and returned to accelerating cavities using rf returns such as rf waveguides, rf feedthroughs, etc. This rf energy is added to rf klystron energy to lower the required input energy and thereby enhance energy efficiency of the system.

Brau, Charles A. (Los Alamos, NM); Swenson, Donald A. (Los Alamos, NM); Boyd, Jr., Thomas J. (Los Alamos, NM)

1981-01-01T23:59:59.000Z

355

Rf feedback free electron laser  

DOE Patents (OSTI)

A free electron laser system and electron beam system for a free electron laser are provided which use rf feedback to enhance efficiency. Rf energy is extracted from an electron beam by decelerating cavities and returned to accelerating cavities using rf returns such as rf waveguides, rf feedthroughs, etc. This rf energy is added to rf klystron energy to lower the required input energy and thereby enhance energy efficiency of the system.

Brau, C.A.; Swenson, D.A.; Boyd, T.J. Jr.

1979-11-02T23:59:59.000Z

356

Electron and laser beam welding  

SciTech Connect

This book contains 22 selections. Some of the titles are: Laser welding of chandelles to the plates of the sommier employed in the nuclear power plant core; Electron beam welding of hobbing cutters; Sealing welds in electron beam welding of thick metals; Development and application of high power electron beam welding; Electron beam welding of dissimilar metals (niobium, molybdenum, porous tungsten-molybdenum); Status of electron beam welding in the United States of America; and Electron and laser beam welding in Japan.

1986-01-01T23:59:59.000Z

357

Laser fusion monthly -- August 1980  

SciTech Connect

This report documents the monthly progress for the laser fusion research at Lawrence Livermore National Laboratory. First it gives facilities report for both the Shiva and Argus projects. Topics discussed include; laser system for the Nova Project; the fusion experiments analysis facility; optical/x-ray streak camera; Shiva Dante System temporal response; 2{omega}{sub 0} experiment; and planning for an ICF engineering test facility.

Ahlstrom, H.G. [ed.

1980-08-01T23:59:59.000Z

358

Laser Program annual report, 1985  

Science Conference Proceedings (OSTI)

This volume presents the unclassified activities and accomplishments of the Inertial Confinement Fusion and Advanced Laser Development elements of the Laser Program at the Lawrence Livermore National Laboratory for the calendar year 1985. This report has been organized into major sections that correspond to our principal technical activities. Section 1 provides an overview. Section 2 comprises work in target theory, design, and code development. Target development and fabrication and the related topics in materials science are contained in Section 3. Section 4 presents work in experiments and diagnostics and includes developments in data acquisition and management capabilities. In Section 5 laser system (Nova) operation and maintenance are discussed. Activities related to supporting laser and optical technologies are described in Section 6. Basic laser research and development is reported in Section 7. Section 8 contains the results of studies in ICF applications where the work reported deals principally with the production of electric power with ICF. Finally, Section 9 is a comprehensive discussion of work to date on solid state lasers for average power applications. Individual sections, two through nine, have been cataloged separately.

Rufer, M.L.; Murphy, P.W. (eds.)

1986-11-01T23:59:59.000Z

359

Phasing of several gain channels for coherent and spectral combining of laser beams  

SciTech Connect

A system for maintaining a constant phase difference between several laser channels is designed and an algorithm of its operation under a slow (with a characteristic time of no less than 100 ms) variation in the radiation phase in a channel is developed. Different possible regimes of operation of the measurement system and versions for phase difference maintaining are analysed and an optimal algorithm is elaborated. Long-term stable operation of the system under thermal and mechanical effects on the active medium is experimentally demonstrated by the example of a seven-channel fibre amplifier with a working wavelength of 1.064 {mu}m. (optical fibres, lasers and amplifiers. properties and applications)

Pyrkov, Yu N; Trikshev, A I; Tsvetkov, V B [A M Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2012-09-30T23:59:59.000Z

360

NBS and the Laser On the 50th Anniversary of the Laser  

Science Conference Proceedings (OSTI)

... When the first laser was demonstrated fifty years ago, it was seen mostly as a solution in search of a problem. As lasers were further developed ...

2010-11-30T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Laser Controlled Area Standard Operating Procedure (SOP)  

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

79 79 01 Effective: Page 1 of 17 05/13/11 Subject: X17B3 Laser Safety Program Documentation 1 AUTHORIZATION | Princeton University BROOKHAVEN NATIONAL LABORATORY LASER CONTROLLED AREA STANDARD OPERATING PROCEDURE (SOP) This document defines the safety management program for the laser system listed below. All American National Standard Institute (ANSI) Hazard Class 3B and 4 laser systems must be documented, reviewed, and approved through use of this form. Each system must be reviewed annually. System description: A laser heating system for diamond anvil cell experiments has been installed at X17B3. A class 4 ytterbium fiber laser (IPG model YLR-100-SM-CS) is used to perform high-pressure laser heating of samples contained in diamond anvil cells. Included within this laser is a guide laser

362

Refractory Alloy Welding [Laser Applications Laboratory] - Nuclear  

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

Refractory Alloy Welding Refractory Alloy Welding Capabilities Engineering Experimentation Reactor Safety Experimentation Aerosol Experiments System Components Laser Applications Overview Laser Oil & Gas Well Drilling Laser Heat Treatment Laser Welding of Metals On-line Monitoring Laser Beam Delivery Laser Glazing of Railroad Rails High Power Laser Beam Delivery Decontamination and Decommissioning Refractory Alloy Welding Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Laser Applications Laboratory Refractory Alloy Welding Project description: Welding of refractory metals such as vanadium alloys. Category: internal R&D project Bookmark and Share Butt weld of two 4 mm thick V-4Cr-4Ti plates made by a pulsed Nd:YAG laser

363

Fiber laser coupled optical spark delivery system  

DOE Patents (OSTI)

A spark delivery system for generating a spark using a laser beam is provided, and includes a laser light source and a laser delivery assembly. The laser delivery assembly includes a hollow fiber and a launch assembly comprising launch focusing optics to input the laser beam in the hollow fiber. The laser delivery assembly further includes exit focusing optics that demagnify an exit beam of laser light from the hollow fiber, thereby increasing the intensity of the laser beam and creating a spark. Other embodiments use a fiber laser to generate a spark. Embodiments of the present invention may be used to create a spark in an engine. Yet other embodiments include collecting light from the spark or a flame resulting from the spark and conveying the light for diagnostics. Methods of using the spark delivery systems and diagnostic systems are provided.

Yalin, Azer (Fort Collins, CO); Willson, Bryan (Fort Collins, CO); Defoort, Morgan (Fort Collins, CO); Joshi, Sachin (Fort Collins, CO); Reynolds, Adam (Fort Collins, CO)

2008-03-04T23:59:59.000Z

364

Dear Ms  

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

[insert address] [insert address] Dear [insert name] : SOLICITATION NUMBER [insert solicitation number] for [insert procurement title/description] In accordance with Federal Acquisition Regulation (FAR) 15.306(c), the Government has established a Competitive Range of offerors for the subject contract solicitation. [insert name of offeror] is not within the established Competitive Range. We have provided the evaluation of your proposal as Attachment 1. In accordance with the FAR 15.505, you may request a debriefing concerning the exclusion of your proposal from the competitive range. We have enclosed a Debriefing Request Form for your use, should you wish to request one (see Attachment 2). Please email a completed copy of

365

Dear Ms  

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

oral, as well as written. The main purpose of these discussions is to notify insert name of offeror of deficiencies and weaknesses in its proposal, as well as other aspects of...

366

MS) Systems  

Pacific Northwest National Laboratory (509) 375-6958 ... Healthcare, ... Medical Professional Services Security ...

367

U-127: Microsoft Security Bulletin MS12-020 - Critical | Department of  

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

U-127: Microsoft Security Bulletin MS12-020 - Critical U-127: Microsoft Security Bulletin MS12-020 - Critical U-127: Microsoft Security Bulletin MS12-020 - Critical March 16, 2012 - 9:30pm Addthis PROBLEM: Microsoft Security Bulletin MS12-020 - Critical PLATFORM: Windows XP Service Pack 3, Windows XP Professional x64 Edition Service Pack 2, Windows XP Professional x64 Edition Service Pack 2, Windows Server 2003 x64 Edition Service Pack 2, Windows Server 2003 with SP2 for Itanium-based Systems, Windows Vista Service Pack 2, Windows Vista x64 Edition Service Pack 2, Windows Server 2008 for 32-bit Systems Service Pack 2, Windows Server 2008 for x64-based Systems Service Pack 2, Windows Server 2008 for Itanium-based Systems Service Pack 2, Windows 7 for 32-bit Systems, Windows 7 for 32-bit Systems Service Pack 1, Windows 7 for x64-based Systems, Windows 7 for x64-based Systems Service

368

Texas Engineering Experiment Station 1470 William D. Fitch Pkwy (MS-3579)  

E-Print Network (OSTI)

Texas Engineering Experiment Station 1470 William D. Fitch Pkwy (MS-3579) College Station, TX 77845 and Information Resources for which an exception is needed Software Applications or Operating Systems (Texas Administrative Code §213.30) Web Sites (Texas Administrative Code §206.70) Telecommunications Products (Texas

369

Name Degree Year Notes Thesis title Berg, Ronald J. MS. Zoology 1969  

E-Print Network (OSTI)

thermoregulation of fishes in relation to heated effluent from a steam-electric power plant (Lake Monona plant on the distribution and abundance of zooplankton near the plant's thermal outfall. Engel, Sanford & 1975 MS.Distribution of fishes near Point Beach Power Plant, Lake Michigan; Ph.D. Habitat selection

Sheridan, Jennifer

370

Measurement of lithium isotope ratios by quadrupole-ICP-MS: application to seawater and natural carbonates  

E-Print Network (OSTI)

Measurement of lithium isotope ratios by quadrupole-ICP-MS: application to seawater and natural method for lithium isotope ratio (7 Li/6 Li) determinations with low total lithium consumption ( lithium from all matrix elements using small volume resin (2 ml/3.4 meq AG 50W-X8) and low volume elution

Weston, Ken

371

COAL RESOURCES, POWDER RIVER BASIN By M.S. Ellis,1  

E-Print Network (OSTI)

Chapter PN COAL RESOURCES, POWDER RIVER BASIN By M.S. Ellis,1 G.L. Gunther,2 A.M. Ochs,2 S, Delaware 1999 Resource assessment of selected Tertiary coal beds and zones in the Northern Rocky in the toolbar to return. 1999 Resource assessment of selected Tertiary coal beds and zones in the Northern Rocky

372

COAL RESOURCES OF THE HANNA AND CARBON By M.S. Ellis,1  

E-Print Network (OSTI)

Chapter HN COAL RESOURCES OF THE HANNA AND CARBON BASINS By M.S. Ellis,1 G.L. Gunther,2 A.M. Ochs,2, Delaware 1999 Resource assessment of selected Tertiary coal beds and zones in the Northern Rocky in the toolbar to return. 1999 Resource assessment of selected Tertiary coal beds and zones in the Northern Rocky

373

COAL RESOURCES, GREATER GREEN RIVER BASIN By M.S. Ellis,1  

E-Print Network (OSTI)

Chapter GN COAL RESOURCES, GREATER GREEN RIVER BASIN By M.S. Ellis,1 G.L. Gunther,2 A.M. Ochs,2 J of Delaware, Newark, Delaware 1999 Resource assessment of selected Tertiary coal beds and zones here or on this symbol in the toolbar to return. 1999 Resource assessment of selected Tertiary coal

374

MS/NMR: A Structure-Based Approach for Discovering Protein Ligands and for Drug Design  

E-Print Network (OSTI)

MS/NMR: A Structure-Based Approach for Discovering Protein Ligands and for Drug Design by Coupling of size exclusion gel chromatography, mass spectrometry, and NMR to identify bound complexes are then individually assayed by chemical shift perturbations in a 2D 1H-15N HSQC NMR spectrum to verify specific

Powers, Robert

375

Semiconductor Laser Diode Pumps for Inertial Fusion Energy Lasers  

Science Conference Proceedings (OSTI)

Solid-state lasers have been demonstrated as attractive drivers for inertial confinement fusion on the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory (LLNL) and at the Omega Facility at the Laboratory for Laser Energetics (LLE) in Rochester, NY. For power plant applications, these lasers must be pumped by semiconductor diode lasers to achieve the required laser system efficiency, repetition rate, and lifetime. Inertial fusion energy (IFE) power plants will require approximately 40-to-80 GW of peak pump power, and must operate efficiently and with high system availability for decades. These considerations lead to requirements on the efficiency, price, and production capacity of the semiconductor pump sources. This document provides a brief summary of these requirements, and how they can be met by a natural evolution of the current semiconductor laser industry. The detailed technical requirements described in this document flow down from a laser ampl9ifier design described elsewhere. In brief, laser amplifiers comprising multiple Nd:glass gain slabs are face-pumped by two planar diode arrays, each delivering 30 to 40 MW of peak power at 872 nm during a {approx} 200 {micro}s quasi-CW (QCW) pulse with a repetition rate in the range of 10 to 20 Hz. The baseline design of the diode array employs a 2D mosaic of submodules to facilitate manufacturing. As a baseline, they envision that each submodule is an array of vertically stacked, 1 cm wide, edge-emitting diode bars, an industry standard form factor. These stacks are mounted on a common backplane providing cooling and current drive. Stacks are conductively cooled to the backplane, to minimize both diode package cost and the number of fluid interconnects for improved reliability. While the baseline assessment in this document is based on edge-emitting devices, the amplifier design does not preclude future use of surface emitting diodes, which may offer appreciable future cost reductions and increased reliability. The high-level requirements on the semiconductor lasers involve reliability, price points on a price-per-Watt basis, and a set of technical requirements. The technical requirements for the amplifier design in reference 1 are discussed in detail and are summarized in Table 1. These values are still subject to changes as the overall laser system continues to be optimized. Since pump costs can be a significant fraction of the overall laser system cost, it is important to achieve sufficiently low price points for these components. At this time, the price target for tenth-of-akind IFE plant is $0.007/Watt for packaged devices. At this target level, the pumps account for approximately one third of the laser cost. The pump lasers should last for the life of the power plant, leading to a target component lifetime requirement of roughly 14 Ghosts, corresponding to a 30 year plant life and 15 Hz repetition rate. An attractive path forward involes pump operation at high output power levels, on a Watts-per-bar (Watts/chip) basis. This reduces the cost of pump power (price-per-Watt), since to first order the unit price does not increase with power/bar. The industry has seen a continual improvement in power output, with current 1 cm-wide bars emitting up to 500 W QCW (quasi-continuous wave). Increased power/bar also facilitates achieving high irradiance in the array plane. On the other hand, increased power implies greater heat loads and (possibly) higher current drive, which will require increased attention to thermal management and parasitic series resistance. Diode chips containing multiple p-n junctions and quantum wells (also called nanostack structures) may provide an additional approach to reduce the peak current.

Deri, R J

2011-01-03T23:59:59.000Z

376

Ring regenerative laser amplifier  

DOE Patents (OSTI)

This invention consists of an efficient, high gain, compact regenerative amplifier that amplifies a seed pulse of laser energy to produce an amplified pulse of greater energy. The amplifier is useful for amplifying seed pulses having a broad bandwidth or in situations where tunability is necessary. The amplifier has high gain while maintaining high pulse contrast. A seed pulse can be amplified to the saturation fluence while maintaining a high contrast (>10[sup 3]). The regenerative amplifier has an optical cavity in a ring configuration, a gain material positioned in the cavity, a polarization-rotating element positioned in the cavity to rotate the polarization of the pulse upon each pass around the cavity, means for inserting the seed pulse into the cavity, and means for removing the polarization-rotated, amplified pulse from the cavity. In some embodiments, the seed pulse is switched in passively, by a selective polarization, and is switched out after a predetermined number of passes around the ring cavity. This completely passive arrangement avoids possibility of switchout failure, and minimizes the ASE problem. In other embodiments, a selectively actuable switch, such as electro-optic element, may be provided within the ring cavity, to switch-in the seed pulse and switch-out the amplified pulse. The electro-optic element may be actuated with a square wave that has a peak voltage equal to the half-wave voltage of the electro-optic crystal.

Perry, M.D.; Patterson, F.G.

1991-01-01T23:59:59.000Z

377

Ring regenerative laser amplifier  

DOE Patents (OSTI)

This invention consists of an efficient, high gain, compact regenerative amplifier that amplifies a seed pulse of laser energy to produce an amplified pulse of greater energy. The amplifier is useful for amplifying seed pulses having a broad bandwidth or in situations where tunability is necessary. The amplifier has high gain while maintaining high pulse contrast. A seed pulse can be amplified to the saturation fluence while maintaining a high contrast (>10{sup 3}). The regenerative amplifier has an optical cavity in a ring configuration, a gain material positioned in the cavity, a polarization-rotating element positioned in the cavity to rotate the polarization of the pulse upon each pass around the cavity, means for inserting the seed pulse into the cavity, and means for removing the polarization-rotated, amplified pulse from the cavity. In some embodiments, the seed pulse is switched in passively, by a selective polarization, and is switched out after a predetermined number of passes around the ring cavity. This completely passive arrangement avoids possibility of switchout failure, and minimizes the ASE problem. In other embodiments, a selectively actuable switch, such as electro-optic element, may be provided within the ring cavity, to switch-in the seed pulse and switch-out the amplified pulse. The electro-optic element may be actuated with a square wave that has a peak voltage equal to the half-wave voltage of the electro-optic crystal.

Perry, M.D.; Patterson, F.G.

1991-12-31T23:59:59.000Z

378

Laser machining of explosives  

DOE Patents (OSTI)

The invention consists of a method for machining (cutting, drilling, sculpting) of explosives (e.g., TNT, TATB, PETN, RDX, etc.). By using pulses of a duration in the range of 5 femtoseconds to 50 picoseconds, extremely precise and rapid machining can be achieved with essentially no heat or shock affected zone. In this method, material is removed by a nonthermal mechanism. A combination of multiphoton and collisional ionization creates a critical density plasma in a time scale much shorter than electron kinetic energy is transferred to the lattice. The resulting plasma is far from thermal equilibrium. The material is in essence converted from its initial solid-state directly into a fully ionized plasma on a time scale too short for thermal equilibrium to be established with the lattice. As a result, there is negligible heat conduction beyond the region removed resulting in negligible thermal stress or shock to the material beyond a few microns from the laser machined surface. Hydrodynamic expansion of the plasma eliminates the need for any ancillary techniques to remove material and produces extremely high quality machined surfaces. There is no detonation or deflagration of the explosive in the process and the material which is removed is rendered inert.

Perry, Michael D. (Livermore, CA); Stuart, Brent C. (Fremont, CA); Banks, Paul S. (Livermore, CA); Myers, Booth R. (Livermore, CA); Sefcik, Joseph A. (Tracy, CA)

2000-01-01T23:59:59.000Z

379

Free electron laser  

DOE Patents (OSTI)

A high gain, single-pass free electron laser formed of a high brilliance electron injector source, a linear accelerator which imparts high energy to the electron beam, and an undulator capable of extremely high magnetic fields, yet with a very short period. The electron injector source is the first stage (gap) of the linear accelerator or a radial line transformer driven by fast circular switch. The linear accelerator is formed of a plurality of accelerating gaps arranged in series. These gaps are energized in sequence by releasing a single pulse of energy which propagates simultaneously along a plurality of transmission lines, each of which feeds the gaps. The transmission lines are graduated in length so that pulse power is present at each gap as the accelerated electrons pass therethrough. The transmission lines for each gap are open circuited at their ends. The undualtor has a structure similar to the accelerator, except that the transmission lines for each gap are substantially short circuited at their ends, thus converting the electric field into magnetic field. A small amount of resistance is retained in order to generate a small electric field for replenishing the electron bunch with the energy lost as it traverses through the undulator structure.

Villa, Francesco (Alameda, CA)

1990-01-01T23:59:59.000Z

380

Laser oscillating apparatus  

SciTech Connect

This patent describes a laser oscillating apparatus of type having a hollow cylindrical housing, gas flow generating means for generating a circulatory gas flow within the housing, paired discharge electrode assemblies opposedly disposed in spaced relationship to define a lasing region therebetween traversed by the circulatory gas flow for carrying out a predetermined discharge within the gas flow traversing the lasing region thereby generating a ray of radiation, and optical resonator means disposed within the housing for resonating the ray of radiation generated in the discharge. Each of the paired discharge electrode assemblies comprises: a. an insulated substrate having a molded base portion and an insulated ceramic surface portion disposed adjacent the molded base portion; b. pin-shaped electrodes; c. a ballast capacitor disposed within the molded base portion of the insulated substrate; d. cooling tube means disposed within the molded base portion of the insulated substrate so as to pass between each pair of adjacent rows of the capacitor units forming the ballast capacitor; and e. at least one heat absorbing plate disposed between each pair of adjacent rows of capacitor units forming the ballast capacitor in contact with the cooling tube means passing therebetween.

Hoag, E.D.

1988-03-08T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Dual wavelength laser damage testing for high energy lasers.  

Science Conference Proceedings (OSTI)

As high energy laser systems evolve towards higher energies, fundamental material properties such as the laser-induced damage threshold (LIDT) of the optics limit the overall system performance. The Z-Backlighter Laser Facility at Sandia National Laboratories uses a pair of such kiljoule-class Nd:Phosphate Glass lasers for x-ray radiography of high energy density physics events on the Z-Accelerator. These two systems, the Z-Beamlet system operating at 527nm/ 1ns and the Z-Petawatt system operating at 1054nm/ 0.5ps, can be combined for some experimental applications. In these scenarios, dichroic beam combining optics and subsequent dual wavelength high reflectors will see a high fluence from combined simultaneous laser exposure and may even see lingering effects when used for pump-probe configurations. Only recently have researchers begun to explore such concerns, looking at individual and simultaneous exposures of optics to 1064 and third harmonic 355nm light from Nd:YAG [1]. However, to our knowledge, measurements of simultaneous and delayed dual wavelength damage thresholds on such optics have not been performed for exposure to 1054nm and its second harmonic light, especially when the pulses are of disparate pulse duration. The Z-Backlighter Facility has an instrumented damage tester setup to examine the issues of laser-induced damage thresholds in a variety of such situations [2] . Using this damage tester, we have measured the LIDT of dual wavelength high reflectors at 1054nm/0.5ps and 532nm/7ns, separately and spatially combined, both co-temporal and delayed, with single and multiple exposures. We found that the LIDT of the sample at 1054nm/0.5ps can be significantly lowered, from 1.32J/cm{sup 2} damage fluence with 1054/0.5ps only to 1.05 J/cm{sup 2} with the simultaneous presence of 532nm/7ns laser light at a fluence of 8.1 J/cm{sup 2}. This reduction of LIDT of the sample at 1054nm/0.5ps continues as the fluence of 532nm/7ns laser light simultaneously present increases. The reduction of LIDT does not occur when the 2 pulses are temporally separated. This paper will also present dual wavelength LIDT results of commercial dichroic beam-combining optics simultaneously exposed with laser light at 1054nm/2.5ns and 532nm/7ns.

Atherton, Briggs W.; Rambo, Patrick K.; Schwarz, Jens; Kimmel, Mark W.

2010-05-01T23:59:59.000Z

382

Laser Ion Source Development at HRIBF  

Science Conference Proceedings (OSTI)

This report describes the efforts made to develop a resonant-ionization laser ion source based on tunable Ti:Sapphire lasers for nuclear physics and astrophysics research at HRIBF. Three Ti:Sapphire lasers have been upgraded with individual pump lasers to eliminate laser power losses due to synchronization delays. Ionization schemes for 14 elements have been obtained. Off-line studies show that the overall efficiency of the laser ion source can be as high as 40%. TaC surface coatings have been investigated for minimizing surface and bulk trapping of the atoms of interest.

Liu, Yuan [ORNL; Beene, James R [ORNL; Havener, Charles C [ORNL; Howe, Jane Y [ORNL; Kiggans, Jim [ORNL; Vane, C Randy [ORNL; Mattolat, C. [Johannes Gutenberg-Universitaet Mainz, Mainz, Germany; Gottwald, T. [Johannes Gutenberg-Universitaet Mainz, Mainz, Germany; Wendt, K. [Johannes Gutenberg-Universitaet Mainz, Mainz, Germany

2012-01-01T23:59:59.000Z

383

Combination free electron and gaseous laser  

DOE Patents (OSTI)

A multiple laser having one or more gaseous laser stages and one or more free electron stages. Each of the free electron laser stages is sequentially pumped by a microwave linear accelerator. Subsequently, the electron beam is directed through a gaseous laser, in the preferred embodiment, and in an alternative embodiment, through a microwave accelerator to lower the energy level of the electron beam to pump one or more gaseous lasers. The combination laser provides high pulse repetition frequencies, on the order of 1 kHz or greater, high power capability, high efficiency, and tunability in the synchronous production of multiple beams of coherent optical radiation.

Brau, Charles A. (Los Alamos, NM); Rockwood, Stephen D. (Los Alamos, NM); Stein, William E. (Los Alamos, NM)

1980-01-01T23:59:59.000Z

384

Integrated injection-locked semiconductor diode laser  

DOE Patents (OSTI)

A continuous wave integrated injection-locked high-power diode laser array is provided with an on-chip independently-controlled master laser. The integrated injection locked high-power diode laser array is capable of continuous wave lasing in a single near-diffraction limited output beam at single-facet power levels up to 125 mW (250 mW total). Electronic steering of the array emission over an angle of 0.5 degrees is obtained by varying current to the master laser. The master laser injects a laser beam into the slave array by reflection of a rear facet. 18 figures.

Hadley, G.R.; Hohimer, J.P.; Owyoung, A.

1991-02-19T23:59:59.000Z

385

Integrated injection-locked semiconductor diode laser  

DOE Patents (OSTI)

A continuous wave integrated injection-locked high-power diode laser array is provided with an on-chip independently-controlled master laser. The integrated injection locked high-power diode laser array is capable of continuous wave lasing in a single near-diffraction limited output beam at single-facet power levels up to 125 mW (250 mW total). Electronic steering of the array emission over an angle of 0.5 degrees is obtained by varying current to the master laser. The master laser injects a laser beam into the slave array by reflection of a rear facet.

Hadley, G. Ronald (Albuquerque, NM); Hohimer, John P. (Albuquerque, NM); Owyoung, Adelbert (Albuquerque, NM)

1991-01-01T23:59:59.000Z

386

Pulsed operation of a segmented longitudinal discharge CO/sub 2/ laser without ballast impedance  

SciTech Connect

It is shown that a longitudinal CO/sub 2/ laser with two discharge tubes electrically coupled in parallel can be operated in pulsed mode without ballast impedance. This scheme not only yields much higher efficiency (up to 13% at the maximum output energy) and eliminates component failure at high pulse repetition frequency (prf) but also facilitates short pulse availability. In the absence of ballast, current and laser pulse width decrease on increasing the voltage applied to the discharge tubes but these quantities remain unaffected on varying the value of the energy storage capacitor. This enables an independent control of the laser pulse duration and energy. Threshold energy for the onset of nonuniformities in the glow discharge reduces almost exponentially on increasing the discharge current pulse duration but rises on decreasing the operating value of E/N, the electric field to neutral gas density ratio. The maximum output laser energy of about 1 J/pulse, adjustable pulse duration from 30 ..mu..s to about 2 ms, and prf up to 50 Hz have been obtained.

Kukreja, L.M.; Sehgal, S.K.; Chatterjee, U.K.

1985-11-01T23:59:59.000Z

387

Erbium-doped Lithium Niobate waveguide lasers: recent progress  

E-Print Network (OSTI)

laser, DBR- and DFB-laser, acoustooptically tuna- ble laser, frequency shifted feedback laser, ring by the standard indiffusion technique of Ti-stripes. If optically pumped by = 1480 nm radiation a wavelenth

Mohseni, Hooman

388

Advances in laser driven accelerator R&D  

E-Print Network (OSTI)

and Zgadzaj, R. , Plasma Channels and Laser Pulse Tailoringfor GeV Laser-Plasma Accelerators, in Advanced Acceleratormulti-terawatt ti:sapphire laser system for laser wake-?eld

Leemans, Wim

2004-01-01T23:59:59.000Z

389

NIST Tests Underscore Potential Hazards of Green Laser ...  

Science Conference Proceedings (OSTI)

NIST Tests Underscore Potential Hazards of Green Laser Pointers. ... Green lasers generate green light from infrared light. ...

2013-03-20T23:59:59.000Z

390

Laser Micro Texturing of Metallic Surfaces to Increase Hydrophobicity  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2010. Symposium, Laser Applications in Materials Processing. Presentation Title, Laser Micro...

391

Laser wafering for silicon solar.  

Science Conference Proceedings (OSTI)

Current technology cuts solar Si wafers by a wire saw process, resulting in 50% 'kerf' loss when machining silicon from a boule or brick into a wafer. We want to develop a kerf-free laser wafering technology that promises to eliminate such wasteful wire saw processes and achieve up to a ten-fold decrease in the g/W{sub p} (grams/peak watt) polysilicon usage from the starting polysilicon material. Compared to today's technology, this will also reduce costs ({approx}20%), embodied energy, and green-house gas GHG emissions ({approx}50%). We will use short pulse laser illumination sharply focused by a solid immersion lens to produce subsurface damage in silicon such that wafers can be mechanically cleaved from a boule or brick. For this concept to succeed, we will need to develop optics, lasers, cleaving, and high throughput processing technologies capable of producing wafers with thicknesses electricity rates. Yet, this idea is largely untested and a simple demonstration is needed to provide credibility for a larger scale research and development program. The purpose of this project is to lay the groundwork to demonstrate the feasibility of laser wafering. First, to design and procure on optic train suitable for producing subsurface damage in silicon with the required damage and stress profile to promote lateral cleavage of silicon. Second, to use an existing laser to produce subsurface damage in silicon, and third, to characterize the damage using scanning electron microscopy and confocal Raman spectroscopy mapping.

Friedmann, Thomas Aquinas; Sweatt, William C.; Jared, Bradley Howell

2011-03-01T23:59:59.000Z

392

Celebrating 50 Years of Laser  

Science Conference Proceedings (OSTI)

When thinking of an innovation that has truly changed our world, it is the laser. Right after discovery back in 1960, it is immediately propelled to a public star. People loved the mystery around this new kind of light. It was soon recognized as a symbol of our entry into the future: The Laser Age has started. Newspapers speculated about ''death rays'' as new weapons. It did not take long time until it appeared in Science fiction movies. However reality was much more beneficial and even more diverse. This device has managed to exceed the wildest predictions of the early laser pioneers when it comes to its applications. Today lasers are not a weird scientist's toy, but are commonly used in our everyday life.Of course, nothing of that was foreseen in the early 1950s. Important fundamentals of lasers have been laid already in 1917 by Albert Einstein, introducing the Einstein coefficient of stimulated emission, and subsequent experimental work by Rudolf Ladenburg, Willis Lamb, Alfred Kastler and others.

Rebel, Heinigerd [Instituet fuer Kernphysik, Forschungzentrum Karlsruhe (Germany)

2010-11-24T23:59:59.000Z

393

1981 laser program annual report  

Science Conference Proceedings (OSTI)

This report is published in sections that correspond to the division of technical activity in the Program. Section 1 provides a Program Overview, presenting highlights of the technical accomplishments of the elements of the Program, a summary of activities carried out under the Glass Laser Experiments Lead Laboratory Program, as well as discussions of Program resources and facilities. Section 2 covers the work on solid-state Nd:glass lasers, including systems operations and Nova and Novette systems development. Section 3 reports on target-design activities, plasma theory and simulation, code development, and atomic theory. Section 4 presents the accomplishments of the Target Fabrication group, Section 5 contains the results of our diagnostics development, and Section 6 reports the results of laser-target experiments conducted during the year, along with supporting research and development activities. Section 7 presents the results from laser research and development, including solid-state R and D and the theoretical and experimental research on advanced lasers. Section 8 contains the results of studies in areas of energy and military applications, including those relating to electrical energy production by inertial-confinement fusion systems.

Not Available

1982-08-01T23:59:59.000Z

394

Lunar Laser Ranging Science  

E-Print Network (OSTI)

Analysis of Lunar Laser Ranging (LLR) data provides science results: gravitational physics and ephemeris information from the orbit, lunar science from rotation and solid-body tides, and Earth science. Sensitive tests of gravitational physics include the Equivalence Principle, limits on the time variation of the gravitational constant G, and geodetic precession. The equivalence principle test is used for an accurate determination of the parametrized post-Newtonian (PPN) parameter \\beta. Lunar ephemerides are a product of the LLR analysis used by current and future spacecraft missions. The analysis is sensitive to astronomical parameters such as orbit, masses and obliquity. The dissipation-caused semimajor axis rate is 37.9 mm/yr and the associated acceleration in orbital longitude is -25.7 ''/cent^2, dominated by tides on Earth with a 1% lunar contribution. Lunar rotational variation has sensitivity to interior structure, physical properties, and energy dissipation. The second-degree lunar Love numbers are detected; k_2 has an accuracy of 11%. Lunar tidal dissipation is strong and its Q has a weak dependence on tidal frequency. A fluid core of about 20% the Moon's radius is indicated by the dissipation data. Evidence for the oblateness of the lunar fluid-core/solid-mantle boundary is getting stronger. This would be independent evidence for a fluid lunar core. Moon-centered coordinates of four retroreflectors are determined. Station positions and motion, Earth rotation variations, nutation, and precession are determined from analyses. Extending the data span and improving range accuracy will yield improved and new scientific results. Adding either new retroreflectors or precise active transponders on the Moon would improve the accuracy of the science results.

James G. Williams; Dale H. Boggs; Slava G. Turyshev; J. Todd Ratcliff

2004-11-18T23:59:59.000Z

395

Free-electron-laser design for laser amplification  

DOE Patents (OSTI)

A method for laser beam amplification by means of free electron laser techniques is described. With wiggler magnetic field strength B/sub w/ and wavelength lambda/sub w/ = 2..pi../k/sub w/ regarded as variable parameters, the method(s) impose conditions such as substantial constancy of B/sub w//k/sub w/ or k/sub w/ or B/sub w/ and k/sub w/ (alternating), coupled with a choice of either constant resonant phase angle or programmed phase space bucket area.

Prosnitz, D.; Szoke, A.

1982-01-26T23:59:59.000Z

396

LaserSPECks:: laser SPECtroscopic trace-gas sensor networks - sensor integration and applications  

Science Conference Proceedings (OSTI)

We introduce a novel laser spectroscopic trace-gas sensor platform, LaserSPECks that integrates recently developed miniature quartz-enhanced photoacoustic spectroscopy (QE-PAS) gas sensing technology. This universal platform uses infrared laser spectroscopy ... Keywords: lasers, sensors, spectroscopy, trace gas sensing

Stephen So; Farinaz Koushanfar; Anatoliy Kosterev; Frank Tittel

2007-04-01T23:59:59.000Z

397

Nd:Glass Laser Design for Laser ICF Fission Energy (LIFE)  

Science Conference Proceedings (OSTI)

Laser Fusion-Fission Hybrid / Eighteenth Topical Meeting on the Technology of Fusion Energy (Part 2)

John Caird et al.

398

NIST Infrared laser gonioreflectometer instrument (ILGRI)  

Science Conference Proceedings (OSTI)

... stable CO 2 , near infrared diode, and continuously tunable OPO PPLN lasers) and a ... from 1 nW to 1 W. The addition of other laser wavelengths in ...

2010-10-05T23:59:59.000Z

399

Laser Scanning Two Photon and Confocal Microscope  

Science Conference Proceedings (OSTI)

... The SP5 is a laser scanning two-photon and confocal microscope equipped with ... nm HeNe, and tunable IR (680 nm - 1060 nm) lasers * 4 internal ...

2012-10-01T23:59:59.000Z

400

Interrogation laser for a strontium lattice clock  

E-Print Network (OSTI)

We report on the setup and characterization of a 698 nm master-slave diode laser system to probe the 1S0-3P0 clock transition of strontium atoms confined in a one-dimensional optical lattice. A linewidth in the order of around 100 Hz of the laser system has been measured with respect to an ultrastable 657 nm diode laser with 1 Hz linewidth using a femtosecond fiber comb as transfer oscillator. The laser has been used to measure the magnetically induced 1S0-3P0 clock transition in 88Sr where a linewidth of 165 Hz has been observed. The transfer oscillator method provides a virtual beat signal between the two diode lasers that has been used to phase lock the 698 nm laser to the 1 Hz linewidth laser at 657 nm, transferring its stability to the 698 nm laser system.

Legero, T; Winfred, J S R Vellore; Schnatz, H; Grosche, G; Riehle, F; Sterr, U

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

A study on Raman Injection Laser  

E-Print Network (OSTI)

The Raman Injection Laser is a new type of laser which is based on triply resonant stimulated Raman scattering between quantum confined states within the active region of a Quantum Cascade Laser that serves as an internal optical pump. The Raman Injection Laser is driven electrically and no external laser pump is required. Triple resonance leads to an enhancement of orders of magnitude in the Raman gain, high conversion efficiency and low threshold. We studied this new type of laser and conclude some basic equations. With reasonable experimental parameters, we calculated the laser gain, losses and the output power of the Raman Injection Laser by using Mathematica and FEMLab. Finally we compared the theoretical and experimental results.

Liu, Debin

2005-08-01T23:59:59.000Z

402

Laser Wakefield Particle Accelerators Project at NERSC  

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

Particle Acceleration Laser Wakefield Particle Acceleration Vorpal.jpg Key Challenges: Design of multiple-staged, 10-GeV laser-wakefield plasma accelerated next-generation hardware...

403

Laser Ablation - From Picoseconds to Microseconds  

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

Laser Ablation - From Picoseconds to Microseconds Speaker(s): Xianglei Mao Date: October 20, 2000 - 12:00pm Location: Bldg. 90 Seminar HostPoint of Contact: Julie Osborn Laser...

404

Laser tracks in rainbow films on water  

Science Conference Proceedings (OSTI)

It is found that narrow non-diverging laser tracks, earlier studied in free soap films, can also arise in thin rainbow films, e.g., of petrol, on water. (laser applications and other topics in quantum electronics)

Startsev, Aleksandr V; Stoilov, Yurii Yu [P N Lebedev Physical Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2012-08-31T23:59:59.000Z

405

Compact and highly efficient laser pump cavity  

SciTech Connect

A new, compact, side-pumped laser pump cavity design which uses non-conventional optics for injection of laser-diode light into a laser pump chamber includes a plurality of elongated light concentration channels. In one embodiment, the light concentration channels are compound parabolic concentrators (CPC) which have very small exit apertures so that light will not escape from the pumping chamber and will be multiply reflected through the laser rod. This new design effectively traps the pump radiation inside the pump chamber that encloses the laser rod. It enables more uniform laser pumping and highly effective recycle of pump radiation, leading to significantly improved laser performance. This new design also effectively widens the acceptable radiation wavelength of the diodes, resulting in a more reliable laser performance with lower cost.

Chang, Jim J. (Dublin, CA); Bass, Isaac L. (Castro Valley, CA); Zapata, Luis E. (Livermore, CA)

1999-01-01T23:59:59.000Z

406

Compact and highly efficient laser pump cavity  

SciTech Connect

A new, compact, side-pumped laser pump cavity design which uses non-conventional optics for injection of laser-diode light into a laser pump chamber includes a plurality of elongated light concentration channels. In one embodiment, the light concentration channels are compound parabolic concentrators (CPC) which have very small exit apertures so that light will not escape from the pumping chamber and will be multiply reflected through the laser rod. This new design effectively traps the pump radiation inside the pump chamber that encloses the laser rod. It enables more uniform laser pumping and highly effective recycle of pump radiation, leading to significantly improved laser performance. This new design also effectively widens the acceptable radiation wavelength of the diodes, resulting in a more reliable laser performance with lower cost.

Chang, J.J.; Bass, I.L.; Zapata, L.E.

1999-11-02T23:59:59.000Z

407

Fluence thresholds for laser-induced damage of optical components in the injector laser of the SSRL gun test facility  

E-Print Network (OSTI)

Fluence thresholds for laser-induced damage of optical components in the injector laser of the SSRL gun test facility

Bolton, P

2001-01-01T23:59:59.000Z

408

Laser Detection Of Material Thickness  

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

Detection Of Material Thickness Detection Of Material Thickness Laser Detection Of Material Thickness There is provided a method for measuring material thickness. Available for thumbnail of Feynman Center (505) 665-9090 Email Laser Detection Of Material Thickness There is provided a method for measuring material thickness comprising: (a) contacting a surface of a material to be measured with a high intensity short duration laser pulse at a light wavelength which heats the area of contact with the material, thereby creating an acoustical pulse within the material: (b) timing the intervals between deflections in the contacted surface caused by the reverberation of acoustical pulses between the contacted surface and the opposite surface of the material: and (c) determining the thickness of the material by calculating the proportion of

409

Atomic vapor laser isotope separation  

SciTech Connect

Atomic vapor laser isotope separation (AVLIS) is a general and powerful technique. A major present application to the enrichment of uranium for light-water power reactor fuel has been under development for over 10 years. In June 1985 the Department of Energy announced the selection of AVLIS as the technology to meet the nation's future need for the internationally competitive production of uranium separative work. The economic basis for this decision is considered, with an indicated of the constraints placed on the process figures of merit and the process laser system. We then trace an atom through a generic AVLIS separator and give examples of the physical steps encountered, the models used to describe the process physics, the fundamental parameters involved, and the role of diagnostic laser measurements.

Stern, R.C.; Paisner, J.A.

1985-11-08T23:59:59.000Z

410

Laser-beam-alignment system  

DOE Patents (OSTI)

A plurality of pivotal reflectors direct a high-power laser beam onto a workpiece, and a rotatable reflector is movable to a position wherein it intercepts the beam and deflects a major portion thereof away from its normal path, the remainder of the beam passing to the pivotal reflectors through an aperture in the rotating reflector. A plurality of targets are movable to positions intercepting the path of light traveling to the pivotal reflectors, and a preliminary adjustment of the latter is made by use of a low-power laser beam reflected from the rotating reflector, after which the same targets are used to make a final adjustment of the pivotal reflectors with the portion of the high-power laser beam passed through the rotating reflector. The system was developed to cut the casings of spent nuclear fuel elements into segments as the initial step in recovering usable fuel. (WHK)

Kasner, W.H.; Racki, D.J.; Swenson, C.E.

1982-02-26T23:59:59.000Z

411

Laser removal of sludge from steam generators  

SciTech Connect

A method of removing unwanted chemical deposits known as sludge from the metal surfaces of steam generators with laser energy is provided. Laser energy of a certain power density, of a critical wavelength and frequency, is intermittently focused on the sludge deposits to vaporize them so that the surfaces are cleaned without affecting the metal surface (sludge substrate). Fiberoptic tubes are utilized for laser beam transmission and beam direction. Fiberoptics are also utilized to monitor laser operation and sludge removal.

Nachbar, Henry D. (Ballston Lake, NY)

1990-01-01T23:59:59.000Z

412

Laser Cooling and Cold Atomic Matter  

Science Conference Proceedings (OSTI)

Laser Cooling and Cold Atomic Matter: to advance the understanding and applications of cold atomic matter, including ...

2012-05-30T23:59:59.000Z

413

Sympathetic Electromagnetically-Induced-Transparency Laser ...  

Science Conference Proceedings (OSTI)

Page 1. Sympathetic Electromagnetically-Induced-Transparency Laser Cooling of Motional Modes in an Ion Chain Y. Lin ...

2013-04-22T23:59:59.000Z

414

CF.sub.4 laser  

DOE Patents (OSTI)

A CF.sub.4 laser for producing near 16 .mu.m radiation utilizing a line tunable CO.sub.2 laser as an optical pumping source. The device uses a cryogenically cooled optically pumped cell containing molecular CF.sub.4 gas. An optical resonant cavity formed around the optically pumped cell induces oscillations of near 16 .mu.m radiation from the .nu..sub.2 +.nu..sub.4 .fwdarw..nu..sub.2 transition in the molecular CF.sub.4 gas.

Wittig, Curt (Santa Monica, CA); Tiee, Joe J. (Los Angeles, CA)

1979-01-01T23:59:59.000Z

415

Compact, high energy gas laser  

DOE Patents (OSTI)

An electrically pumped gas laser amplifier unit having a disc-like configuration in which light propagation is radially outward from the axis rather than along the axis. The input optical energy is distributed over a much smaller area than the output optical energy, i.e., the amplified beam, while still preserving the simplicity of parallel electrodes for pumping the laser medium. The system may thus be driven by a comparatively low optical energy input, while at the same time, owing to the large output area, large energies may be extracted while maintaining the energy per unit area below the threshold of gas breakdown.

Rockwood, Stephen D. (Los Alamos, NM); Stapleton, Robert E. (Los Alamos, NM); Stratton, Thomas F. (Los Alamos, NM)

1976-08-03T23:59:59.000Z

416

Laser fusion monthly, February 1981  

SciTech Connect

This report is divided into the following sections: (1) facility reports (Argus and Shiva); (2) Nova project; and (3) fusion experiments. In the Fusion Experiments section of this report, the author describes the results of a series of experiments on Shiva which further the understanding of the production and transport of suprathermal electrons. He found that of the suprathermal electrons which strike a laser irradiated disk target or which interact with the rear surface of a half Cairn hohlraum target, a significant fraction of these electrons orbit the target and strike the rear of the disk. These results have significant implications in the interpretation and modeling of the laser irradiated target experiments.

Ahlstrom, H.G.

1981-02-01T23:59:59.000Z

417

Dynamic cutter runout measurement with laser sensor  

Science Conference Proceedings (OSTI)

The cutter runout is very common in machine milling and has a great effect on the surface accuracy. In this paper, a measurement of radial cutter runout in revolving milling tool is proposed by using the laser sensor. A laser beam is projected onto the ... Keywords: dynamic cutter runout, high speed milling, laser sensor, milling tool, surface accuracy

XiaoJian Zhang; CaiHua Xiong; Ye Ding

2012-10-01T23:59:59.000Z

418

Laser Polarization Effects in Supercontinuum Generation  

E-Print Network (OSTI)

We present experimental evidence of a fourth order process in electric field in supercontinuum generation. We also show laser induced polarization preference in the supercontinuum generating media. These results have become possible through the choice of isotropic and anisotropic samples interacting with ultrashort laser pulses of changing ellipticity. Laser polarization emerges as an important control parameter for the highly nonlinear phenomenon of supercontinuum generation.

Alok Srivastava; Debabrata Goswami

2004-02-22T23:59:59.000Z

419

Super-high density laser fusion CTR  

SciTech Connect

From sixth European conference on controlled fusion and plasma physics; Moscow, USSR (30 Jul 1973). A basic discussion of laser-induced fusion is presented. Implosion development and applications are described. Implosion and thermonuclear physics are discussed in some detail along with laser technology, laser fusion reactors, and fusion energy conversion. (MOW)

Thiessen, A.; Zimmerman, G.; Weaver, T.; Emmett, J.; Nuckolls, J.; Wood, L.

1973-09-01T23:59:59.000Z

420

Laser Diode Cathode Laser Diode Anode +5 Volts  

E-Print Network (OSTI)

the high performance you expect from a Wavelength component with two distinct improvements: low voltage operation from +5 V DC, and an Active Current Limit. Operating from a single +5 V supply minimizes heat dissipation. Modular packaging makes it easy to integrate the PLD into your system. For applications that require a higher forward voltage, a separate laser diode power supply input lets you provide a higher compliance voltage. The Active Current Limit not only protects your laser diode, but ensures that you are operating with maximum stability. When the laser current reaches the level set by the Limit I Trimpot, the output disables and the Limit LED and Limit Status indicate the current limit has been reached. Two photodiode ranges provide variable sensitivities for optimum operation. You can maintain excellent stability when operating in both constant current and constant power mode. All trimpots and switches are easily accessible and offer precision control. A slow start circuit, mechanical shorting relay, and Active Current Limit offer maximum protection for your laser diode even when power is removed.

H; pin Power Ground; Lim I Adj; I Disabled

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

VIA EMAIL Ms. Mariah Steele ENERGY STAR Program U.S. Environmental Protection Agency  

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

10, 2013 10, 2013 VIA EMAIL Ms. Mariah Steele ENERGY STAR Program U.S. Environmental Protection Agency 1200 Pennsylvania Avenue, NW Room 62023 Washington, DC 20460 Dear Ms. Steele: The U.S. Department of Energy ("DOE") selected a Sunpentown-brand refrigerator, model RF-330SS, manufactured by Hefei Hualing Co., Ltd. ("Hefei Hualing"), for testing as part of DOE's ENERGY STAR ® Verification Testing Program. On October 24, 2012, DOE notified Sunpentown International, Inc. ("Sunpentown") that the model did not meet the ENERGY STAR specification for maximum permitted annual energy use. Hefei Hualing replied to DOE via email, first inquiring why DOE's notification listed the model's maximum permitted energy use as 242 kilowatt-hours per year (kWh/yr) rather than

422

Ms Rocio Meneses | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Rocio Meneses Rocio Meneses 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 Ms. Rocio Meneses Print Text Size: A A A RSS Feeds FeedbackShare Page Program Assistant Scientific User Facilities Division 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: Rocio.Meneses@science.doe.gov Phone: (301) 903-7792 Fax: (301) 903-1690 Ms. Meneses previously worked as an office manager for four years at a non-profit organization called Working Classroom. Working Classroom is a

423

Ms. Judy Clayton, Chair Paducah Citizens Advisory Board EHI Consultants, Inc.  

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

19,201 0 19,201 0 Ms. Judy Clayton, Chair Paducah Citizens Advisory Board EHI Consultants, Inc. 1 1 1 Memorial Drive Paducah, Kentucky 4200 1 Dear Ms. Clayton: Thank you for your recent letter providing a recommendation to include option periods in Department of Energy Requests for Proposals for prime contracts. The Federal Acquisition Regulation (FAR) provides the total of the basic and option period of a contract for services shall not exceed 5 years, unless approved in accordance with agency procedures. In determining to approve inclusion of an option beyond the 5-year base period specified in FAR, many additional factors must be taken into consideration. These factors include: an expectation that the work requirements will continue beyond the base period of the contract; a

424

VIA EMAIL Ms. Leslie Jones ENERGY STAR Program U.S. Environmental Protection Agency  

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

6, 2011 6, 2011 VIA EMAIL Ms. Leslie Jones ENERGY STAR Program U.S. Environmental Protection Agency Washington, DC 20460 Dear Ms. Jones: On March 9, 2011, the United States Department of Energy (DOE) notified Whirlpool Corporation (Whirlpool) that DOE had completed testing of the KitchenAid refrigerator model KSRS25RV* under the ENERGY STAR Testing Pilot Program and confirmed that the model did not meet the ENERGY STAR maximum energy consumption requirement of 580 kWh/yr. DOE gave Whirlpool until March 29, 2011, to provide conclusive manufacturing or design evidence or quality assurance information rebutting DOE testing, which showed that this product did not meet the ENERGY STAR Program's energy-efficiency. On March 29,2011, Whirlpool replied that its certification test results for the model met the

425

Mr. Christopher Lawrence and Ms. Julie Smith Office of Electricity Delivery and Energy Reliability  

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

Mr. Christopher Lawrence and Ms. Julie Smith Office of Electricity Delivery and Energy Reliability Mail Code: OE-20 U.S. Department of Energy 1000 Independence Avenue, SW Washington, D.C. 20585 Dear Mr. Lawrence and Ms. Smith, The Western Governors' Association (WGA) is submitting these comments in response to the Department of Energy's (DOE) Request for Information (RFI), dated August 29, 2013 1 . The RFI outlines a proposed process to establish a coordinated series of meetings and other actions for qualified transmission projects, via an Integrated, Interagency Pre-Application process (IIP). Western Governors appreciate efforts to streamline the siting and permitting process for transmission. Western Governors have a clear goal to site and permit transmission lines three years after a

426

Ms. Julie A. Smith Mr. Christopher Lawrence Office of Electricity Delivery and Energy Reliability  

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

October 30, 2013 October 30, 2013 Ms. Julie A. Smith Mr. Christopher Lawrence Office of Electricity Delivery and Energy Reliability Mail Code: OE-20 U.S. Department of Energy 1000 Independence Avenue, SW Washington, DC 20585 Dear Ms. Smith and Mr. Lawrence: The Association of Fish and Wildlife Agencies (AFWA) would like to provide comments on the Federal Register Notice Request for Information (RFI) on Improving Performance of Federal Permitting and Review of Infrastructure Projects, Federal Register Document 2013-21098. AFWA is the professional association that represents the collective voice of North America's state, provincial and territorial fish and wildlife agencies. The state fish and wildlife agencies (State agencies) have statutory authority

427

File:USDA-CE-Production-GIFmaps-MS.pdf | Open Energy Information  

Open Energy Info (EERE)

MS.pdf MS.pdf Jump to: navigation, search File File history File usage Mississippi Ethanol Plant Locations Size of this preview: 776 × 600 pixels. Full resolution ‎(1,650 × 1,275 pixels, file size: 278 KB, MIME type: application/pdf) Description Mississippi Ethanol Plant Locations Sources United States Department of Agriculture Related Technologies Biomass, Biofuels, Ethanol Creation Date 2010-01-19 Extent State Countries United States UN Region Northern America States Mississippi External links http://www.nass.usda.gov/Charts_and_Maps/Ethanol_Plants/ File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 16:17, 27 December 2010 Thumbnail for version as of 16:17, 27 December 2010 1,650 × 1,275 (278 KB) MapBot (Talk | contribs) Automated bot upload

428

Ms. Katharine Kaplan ENERGY STAR Program U.S. Environmental Protection Agency  

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

September 2, 2010 September 2, 2010 Ms. Katharine Kaplan ENERGY STAR Program U.S. Environmental Protection Agency 1200 Pennsylvania Avenue, NW MC 6202J Washington, DC 20460 Dear Ms. Kaplan: On July 29, 2010, the United States Department of Energy (DOE) notified Whirlpool Corporation that DOE testing of one unit of the Amana dishwasher model ASD2524VE*, performed as part of the ENERGY STAR Verification Testing Pilot Program, showed that this model exceeded allowable ENERGY STAR efficiency requirements by 9.2 percent during Stage I testing. DOE gave Whirlpool until August 9, 2010, to request testing of additional units so that DOE could statistically determine whether this model meets the ENEGRY STAR requirements or to have this matter referred to the United States Environmental Protection Agency (EPA).

429

Development of chiral LC-MS methods for small molecules and their applications i  

Office of Scientific and Technical Information (OSTI)

chiral LC-MS methods for small molecules and their applications i chiral LC-MS methods for small molecules and their applications i n the analysis of enantiomeric composition and pharmacokinetic studies Meera Jay Desai A dissertation submitted to the graduate faculty in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Major: Analytical Chemistry Program of Study Committee: Daniel W. Armstrong, Major Professor Edward S. Yeung Robsrt S. Houk Victor S.-Y. Lin Gregory Phillips Iowa State University Ames, Iowa 2004 .. 11 Graduate College Iowa State University This is to certify that the doctoral dissertation of Meera Jay Desai has met the dissertation requirement of Iowa State University Major Professor ,&I w4/< For e Major Program ... 1 1 1 This dissertation i s Adicated tu Mypurt?ntsl for taking a chance on a better lge for themselves and their chilhen

430

Microsoft PowerPoint - 13-01 Poirier SRNL-MS-2010-00246.ppt  

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

Tanks 5 and 6 Oxalic Acid Dissolution and Tanks 5 and 6 Oxalic Acid Dissolution and Tank 5 and 6 Characterization M. R. Poirier, R. Jolly, and G. D. Thaxton November 18, 2010 SRNL-MS-2010-00246 Print Close 2 Outline of Talk Introduction Description of Testing Simulant Testing Actual Waste Testing Test Results Description of Oxalic Acid Cleaning in Tank Farm Results from Oxalic Acid Cleaning in Tank Farm Mechanical Cleaning Conclusions Print

431

Sources of Technical Variability in Quantitative LC-MS Proteomics: Human Brain Tissue Sample Analysis.  

SciTech Connect

To design a robust quantitative proteomics study, an understanding of both the inherent heterogeneity of the biological samples being studied as well as the technical variability of the proteomics methods and platform is needed. Additionally, accurately identifying the technical steps associated with the largest variability would provide valuable information for the improvement and design of future processing pipelines. We present an experimental strategy that allows for a detailed examination of the variability of the quantitative LC-MS proteomics measurements. By replicating analyses at different stages of processing, various technical components can be estimated and their individual contribution to technical variability can be dissected. This design can be easily adapted to other quantitative proteomics pipelines. Herein, we applied this methodology to our label-free workflow for the processing of human brain tissue. For this application, the pipeline was divided into four critical components: Tissue dissection and homogenization (extraction), protein denaturation followed by trypsin digestion and SPE clean-up (digestion), short-term run-to-run instrumental response fluctuation (instrumental variance), and long-term drift of the quantitative response of the LC-MS/MS platform over the 2 week period of continuous analysis (instrumental stability). From this analysis, we found the following contributions to variability: extraction (72%) >> instrumental variance (16%) > instrumental stability (8.4%) > digestion (3.1%). Furthermore, the stability of the platform and its suitability for discovery proteomics studies is demonstrated.

Piehowski, Paul D.; Petyuk, Vladislav A.; Orton, Daniel J.; Xie, Fang; Moore, Ronald J.; Ramirez Restrepo, Manuel; Engel, Anzhelika; Lieberman, Andrew P.; Albin, Roger L.; Camp, David G.; Smith, Richard D.; Myers, Amanda J.

2013-05-03T23:59:59.000Z

432

Performance characteristics of cryofocusing GC/MS system at BWXT Pantex Plant.  

SciTech Connect

Ensuring the reliability of all components within a weapon system becomes increasingly important as the stockpile ages. One of the most noteworthy surveillance techniques designed to circumvent (or take place alongside) traditional D&I operations is to collect a sample of gas from within the internal atmosphere of a particular region in a weapon. While a wealth of information about the weapon may be encoded within the composition of its gas sample, our access to that information is only as good as the method used to analyze the sample. It has been shown that cryofocusing-GC/MS offers advantages in terms of sensitivity, ease of sample collection, and robustness of the equipment/hardware used. Attention is therefore focused on qualifying a cryo-GC/MS system for routine stockpile surveillance operations at Pantex. A series of tests were performed on this instrument to characterize the linearity and repeatability of its response using two different standard gas mixes (ozone precursor and TO-14) at various concentrations. This paper outlines the methods used and the results of these tests in order to establish a baseline by which to compare future cryo-GC/MS analyses. A summary of the results is shown.

Brown, Jason R.; Banet, Judith F.; Ithaca, Jerry (BWXT Pantex Plant, Amarillo, TX); Thornberg, Steven Michael; Woods, Lorelei (BWXT Pantex Plant, Amarillo, TX)

2006-07-01T23:59:59.000Z

433

Performance Evaluation of Real Time Formaldehyde Monitors: PTR-MS and  

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

Performance Evaluation of Real Time Formaldehyde Monitors: PTR-MS and Performance Evaluation of Real Time Formaldehyde Monitors: PTR-MS and Interscan 4160-500B Portable Monitor Title Performance Evaluation of Real Time Formaldehyde Monitors: PTR-MS and Interscan 4160-500B Portable Monitor Publication Type Report LBNL Report Number LBNL-6357E Year of Publication 2013 Authors Sidheswaran, Meera A., Sebastian Cohn, Douglas P. Sullivan, and Lara A. Gundel Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract Executive Summary Exposure to volatile organic compounds (VOCs) in buildings is a health hazard. Of particular concern is formaldehyde, a ubiquitous carcinogen emitted from furnishings and adhesives in homes and offices. Practitioners and researchers in the area of building performance are very interested in measuring formaldehyde in homes, and they need instrumentation that responds immediately. Current formaldehyde monitoring techniques are hampered by interfering substances in the sample airstream, compromising measurement accuracy and leading to drift. Many experts are now using a tabletop real-time formaldehyde instrument, the Interscan 4160-2, that LBNL researchers have found to be very sensitive to water vapor and low levels of volatile organic compounds (VOCs). Unless ways are found to remove these interferences, relying on the Interscan's readings in buildings will lead to the wrong conclusions about formaldehyde levels and could trigger subsequent unnecessary expense and/or inappropriate responses.

434

Lasers and photodynamic therapy in the treatment of onychomycosis: a review of the literature.  

E-Print Network (OSTI)

Rothermel E, Apfelberg D. Carbon dioxide laser for certainLaser Therapy Carbon dioxide (CO 2 ) lasers have been used

Becker, Caitlin; Bershow, Andrea

2013-01-01T23:59:59.000Z

435

Control of Laser Plasma Based Accelerators up to 1 GeV  

E-Print Network (OSTI)

2 1.2 LOASIS Laser Plasma Based94 Laser Energy Loss vs.Laser Pointintg (310 m) . . . . . . . . . . . . . . . 95

Nakamura, Kei

2008-01-01T23:59:59.000Z

436

Laser cutting with chemical reaction assist  

DOE Patents (OSTI)

A method for cutting with a laser beam where an oxygen-hydrocarbon reaction is used to provide auxiliary energy to a metal workpiece to supplement the energy supplied by the laser. Oxygen is supplied to the laser focus point on the workpiece by a nozzle through which the laser beam also passes. A liquid hydrocarbon is supplied by coating the workpiece along the cutting path with the hydrocarbon prior to laser irradiation or by spraying a stream of hydrocarbon through a nozzle aimed at a point on the cutting path which is just ahead of the focus point during irradiation.

Gettemy, Donald J. (Los Alamos, NM)

1992-01-01T23:59:59.000Z

437

Laser cutting with chemical reaction assist  

DOE Patents (OSTI)

This invention is comprised of a method for cutting with a laser beam where an oxygen-hydrocarbon reaction is used to provide auxiliary energy to a metal workpiece to supplement the energy supplied by the laser. Oxygen is supplied to the laser focus point on the workpiece by a nozzle through which the laser beam also passes. A liquid hydrocarbon is supplied by coating the workpiece along the cutting path with the hydrocarbon prior to laser irradiation or by spraying a stream of hydrocarbon through a nozzle aimed at a point on the cutting path which is just ahead of the focus point during irradiation.

Gettemy, D.J.

1991-04-08T23:59:59.000Z

438

Copper vapor laser acoustic thermometry system  

DOE Patents (OSTI)

A copper vapor laser (CVL) acoustic thermometry system is disclosed. The invention couples an acoustic pulse a predetermined distance into a laser tube by means of a transducer and an alumina rod such that an echo pulse is returned along the alumina rod to the point of entry. The time differential between the point of entry of the acoustic pulse into the laser tube and the exit of the echo pulse is related to the temperature at the predetermined distance within the laser tube. This information is processed and can provide an accurate indication of the average temperature within the laser tube.

Galkowski, J.J.

1986-08-27T23:59:59.000Z

439

Laser Phase Errors in Seeded FELs  

Science Conference Proceedings (OSTI)

Harmonic seeding of free electron lasers has attracted significant attention from the promise of transform-limited pulses in the soft X-ray region. Harmonic multiplication schemes extend seeding to shorter wavelengths, but also amplify the spectral phase errors of the initial seed laser, and may degrade the pulse quality. In this paper we consider the effect of seed laser phase errors in high gain harmonic generation and echo-enabled harmonic generation. We use simulations to confirm analytical results for the case of linearly chirped seed lasers, and extend the results for arbitrary seed laser envelope and phase.

Ratner, D.; Fry, A.; Stupakov, G.; White, W.; /SLAC

2012-03-28T23:59:59.000Z

440

Vacuum barrier for excimer lasers  

DOE Patents (OSTI)

A barrier for separating the vacuum area of a diode from the pressurized gas area of an excimer laser. The barrier is a composite material comprising layers of a metal such as copper, along with layers of polyimide, and a matrix of graphite fiber yarns impregnated with epoxy. The barrier is stronger than conventional foil barriers, and allows greater electron throughput. 3 figs.

Shurter, R.P.

1992-09-15T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Hybrid free electron laser devices  

Science Conference Proceedings (OSTI)

We consider hybrid free electron laser devices consisting of Cerenkov and undulator sections. We will show that they can in principle be used as segmented devices and also show the possibility of exploiting Cerenkov devices for the generation of nonlinear harmonic coherent power. We discuss both oscillator and amplifier schemes.

Asgekar, Vivek; Dattoli, G. [Department of Physics, University of Pune, Pune 411007 (India); ENEA, Unita Tecnico Scientifica Technologie Fisiche, Avanzate, Centro Ricerche Frascati, C.P. 65-00044 Frascati, Rome (Italy)

2007-03-15T23:59:59.000Z

442

Laser program annual report, 1979  

SciTech Connect

This volume provides a program overview, presenting highlights of the technical accomplishments of the elements of the program, as well as discussions of program resources and facilities. Also covered are the work of the Solid-State Laser program element, which includes systems operations, Nova, and research and development activities. (MOW)

Coleman, L.W.; Strack, J.R. (eds.)

1980-03-01T23:59:59.000Z

443

Development of matrix assisted laser desorption ionization-ion mobility-orthogonal time-of-flight mass spectrometry as a tool for proteomics  

E-Print Network (OSTI)

Separations coupled to mass spectrometry (MS) are widely used for large-scale protein identification in order to reduce the adverse effects of analyte ion suppression, increase the dynamic range, and as a deconvolution technique for complex datasets typical of cellular protein complements. In this work, matrix assisted laser desorption-ionization is coupled with ion mobility (IM) separation for the analysis of biological molecules. The utility of liquid-phase separations coupled to MS lies in the orthogonality of the two separation dimensions for all analytes. The data presented in this work illustrates that IM-MS relies on the correlation between separation dimensions for different classes (either structural or chemical) of analyte ions to obtain a useful separation. For example, for a series of peptide ions of increasing mass-to-charge (m/z) a plot drift time in the IM drift cell vs. m/z increases in a near-linear fashion, but DNA or lipids having similar m/z values will have very different IM drift time-m/z relationships, thus drift time vs. m/z can be used as a qualitative tool for compound class identification. In addition, IM-MS is applied to the analysis of large peptide datasets in order to determine the peak capacity of the method for bottom-up experiments in proteomics, and it is found that IM separation increases the peak capacity of an MS-only experiment by a factor of 5-10. The population density of the appearance area for peptides is further characterized in terms of the gas-phase structural propensities for tryptic peptide ions. It is found that a small percentage (~3%) of peptide sequences form extended (i.e., helical or ?-sheet type) structures in the gas-phase, thus influencing the overall appearance area for peptide ions. Furthermore, the ability of IM-MS to screen for the presence of phosphopeptides is characterized, and it is found that post translationally modified peptides populate the bottom one-half to one-third of the total appearance area for peptide ions. In general, the data presented in this work indicates that IM-MS offers dynamic range and deconvolution capabilities comparable to liquid-phase separation techniques coupled to MS on a time scale (ms) that is fully compatible to current MS, including TOF-MS, technology.

Ruotolo, Brandon Thomas

2003-05-01T23:59:59.000Z

444

Laser photon statistics in the feedback loop  

E-Print Network (OSTI)

A mere correspondence between the electron statistics and the photon one vanishes in the feedback loop (FBL). It means that the direct photodetection, supplying us with the electron statistics, does not provide us with a wished information about the laser photon statistics. For getting this information we should think up another measurement procedure, and we in the article suggest applying the three-level laser as a auxiliary measuring device. This laser has impressive property, namely, its photon statistics survive information about the initial photon statistics of the laser which excites coherently the three-level medium. Thus, if we choose the laser in the FBL as exciting the three-level laser, then we have an possibility to evaluate its initial photon statistics by means of direct detecting the three-level laser emission. Finally, this approach allows us to conclude the feedback is not capable of creating a regularity in the laser light beam. Contrary, the final photon fluctuations turn out to be always even bigger. The mentioned above feature of the three-level laser takes place only for the strong interaction between the lasers (exciting and excited). It means the initial state of the exciting laser is changed dramatically, so our measurement procedure can not be identified with some non-demolition one.

T. Yu. Golubeva; Yu. M. Golubev

2005-04-23T23:59:59.000Z

445

Short pulse free electron laser amplifier  

DOE Patents (OSTI)

Method and apparatus for amplification of a laser pulse in a free electron laser amplifier where the laser pulse duration may be a small fraction of the electron beam pulse duration used for amplification. An electron beam pulse is passed through a first wiggler magnet and a short laser pulse to be amplified is passed through the same wiggler so that only the energy of the last fraction, f, (f<1) of the electron beam pulse is consumed in amplifying the laser pulse. After suitable delay of the electron beam, the process is repeated in a second wiggler magnet, a third, . . . , where substantially the same fraction f of the remainder of the electron beam pulse is consumed in amplification of the given short laser pulse in each wiggler magnet region until the useful electron beam energy is substantially completely consumed by amplification of the laser pulse.

Schlitt, Leland G. (Livermore, CA); Szoke, Abraham (Fremont, CA)

1985-01-01T23:59:59.000Z

446

Method for laser drilling subterranean earth formations  

DOE Patents (OSTI)

Laser drilling of subterranean earth formations is efficiently accomplished by directing a collimated laser beam into a bore hole in registry with the earth formation and transversely directing the laser beam into the earth formation with a suitable reflector. In accordance with the present invention, the bore hole is highly pressurized with a gas so that as the laser beam penetrates the earth formation the high pressure gas forces the fluids resulting from the drilling operation into fissures and pores surrounding the laser-drilled bore so as to inhibit deleterious occlusion of the laser beam. Also, the laser beam may be dynamically programmed with some time dependent wave form, e.g., pulsed, to thermally shock the earth formation for forming or enlarging fluid-receiving fissures in the bore.

Shuck, Lowell Z. (Morgantown, WV)

1976-08-31T23:59:59.000Z

447

Laser Controlled Area Standard Operating Procedure (SOP)  

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

PS-ESH-0025 PS-ESH-0025 01 Effective: Page 1 of 13 03/09/2012 Subject: Laser Safety Program Documentation X17C The only official copy of this file is the one on-line in the NSLS ESH website. Before using a printed copy, verify that it is the most current version by checking the document issue date on the NSLS ESH website. BROOKHAVEN NATIONAL LABORATORY LASER CONTROLLED AREA STANDARD OPERATING PROCEDURE (SOP) X17C Laser System System description: There is one laser at X17C: Diode-Pumped Solid State Laser (Class 3B) that has two uses: - Measurement of diamond anvil pressure from ruby fluorescence - Raman spectrum measurements Location: The DPSS laser system is located in NSLS room 1-134C LINE MANAGEMENT RESPONSIBILITIES The Owner/Operator for this laser is listed below. The Owner/Operator is the Line Manager of the system

448

Laser Spark Distribution and Ignition System  

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

Spark Distribution and Ignition System Spark Distribution and Ignition System Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking licensing partners interested in implement- ing United States Patent Number 7,421,166 entitled "Laser Spark Distribution and Ignition System." Disclosed in this patent is NETL's laser spark distribution and ignition system, which reduces the high-power optical requirements normally needed for such a system by using optical fibers to deliver low-peak-energy pumping pulses to a laser amplifier or laser oscillator. Laser spark generators then produce a high-peak-power laser spark from a single low power pulse. The system has ap- plications in natural gas fueled reciprocating engines, turbine combustors, explosives, and laser induced breakdown spectroscopy diagnostic sensors.

449

Laser wafering for silicon solar.  

SciTech Connect

Current technology cuts solar Si wafers by a wire saw process, resulting in 50% 'kerf' loss when machining silicon from a boule or brick into a wafer. We want to develop a kerf-free laser wafering technology that promises to eliminate such wasteful wire saw processes and achieve up to a ten-fold decrease in the g/W{sub p} (grams/peak watt) polysilicon usage from the starting polysilicon material. Compared to today's technology, this will also reduce costs ({approx}20%), embodied energy, and green-house gas GHG emissions ({approx}50%). We will use short pulse laser illumination sharply focused by a solid immersion lens to produce subsurface damage in silicon such that wafers can be mechanically cleaved from a boule or brick. For this concept to succeed, we will need to develop optics, lasers, cleaving, and high throughput processing technologies capable of producing wafers with thicknesses < 50 {micro}m with high throughput (< 10 sec./wafer). Wafer thickness scaling is the 'Moore's Law' of silicon solar. Our concept will allow solar manufacturers to skip entire generations of scaling and achieve grid parity with commercial electricity rates. Yet, this idea is largely untested and a simple demonstration is needed to provide credibility for a larger scale research and development program. The purpose of this project is to lay the groundwork to demonstrate the feasibility of laser wafering. First, to design and procure on optic train suitable for producing subsurface damage in silicon with the required damage and stress profile to promote lateral cleavage of silicon. Second, to use an existing laser to produce subsurface damage in silicon, and third, to characterize the damage using scanning electron microscopy and confocal Raman spectroscopy mapping.

Friedmann, Thomas Aquinas; Sweatt, William C.; Jared, Bradley Howell

2011-03-01T23:59:59.000Z

450

A case of lymphangioma circumscriptum successfully treated with electrodessication following failure of pulsed dye laser  

E-Print Network (OSTI)

review and evaluation of carbon dioxide laser vaporization.cauterization or fraxelated carbon dioxide (CO 2 ) laser wasand argon laser. Carbon dioxide laser ablation (10,600 nm)

Emer, Jason; Gropper, Jaime; Gallitano, Stephanie; Levitt, Jacob

2013-01-01T23:59:59.000Z

451

Laser-induced Breakdown Spectroscopy used to Detect Endophyte-mediated Accumulation of Metals by Tall Fescue  

Science Conference Proceedings (OSTI)

Laser-induced breakdown spectroscopy was used to determine the impact of endophyte (Neotyphodium sp.) infection on elemental composition of tall fescue (Festuca arundinacea). Leaf material from endophyte-infected (E+) and endophyte-free (E-) tall fescue populations in established plots was examined. Leaf-tissue digestates were also tested for metals, by ICP-MS. Seven of eleven metals (Ca, Mg, Fe, Mn, Cu, Ni and Zn) were measured by both techniques at concentrations great enough to reliably compare. Mg, Zn, and Cd, a toxic metal that can be present in forage, were readily detected by LIBS, even though Cd concentrations in the plants were below levels typically achieved using ICP-MS detection. Implications of these results for research on forage analysis and phytoremediation are discussed.

Martin, Madhavi Z [ORNL; Stewart, Arthur J [ORNL; Gwinn, Dr. Kimberley [University of Tennessee, Knoxville (UTK); Waller, John C [ORNL

2010-01-01T23:59:59.000Z

452

High-Power Solid-State Lasers from a Laser Glass Perspective  

Science Conference Proceedings (OSTI)

Advances in laser glass compositions and manufacturing have enabled a new class of high-energy/high-power (HEHP), petawatt (PW) and high-average-power (HAP) laser systems that are being used for fusion energy ignition demonstration, fundamental physics research and materials processing, respectively. The requirements for these three laser systems are different necessitating different glasses or groups of glasses. The manufacturing technology is now mature for melting, annealing, fabricating and finishing of laser glasses for all three applications. The laser glass properties of major importance for HEHP, PW and HAP applications are briefly reviewed and the compositions and properties of the most widely used commercial laser glasses summarized. Proposed advances in these three laser systems will require new glasses and new melting methods which are briefly discussed. The challenges presented by these laser systems will likely dominate the field of laser glass development over the next several decades.

Campbell, J H; Hayden, J S; Marker, A J

2010-12-17T23:59:59.000Z

453

Laser breakdown in air at ultrahigh laser pulse repetition rates  

SciTech Connect

Some specific features of interaction of intense femtosecond laser pulses with air at ultrahigh pulse repetition rates have been experimentally studied. Data on the dynamics of plasma cloud expansion and the plasma electron density on time intervals no longer than 10 ns are obtained by femtosecond interferometry. These data are interpreted in terms of the most likely mechanisms of ionised gas recombination. The effect of ultrahigh-frequency laser radiation on a medium was modelled by double-pulse irradiation with a short delay {Delta}t between the pulses: from 1 ps to 11 ns. A nonmonotonic dependence of the degree of air ionisation by the second pulse on the delay time {Delta}t is found; possible mechanisms of these dependences are discussed in terms of the processes of femtosecond radiation absorption in the residual plasma. (extreme light fields and their applications)

Kononenko, Vitalii V; Kononenko, Taras V; Pashinin, V P; Gololobov, V M; Konov, Vitalii I [A M Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2013-04-30T23:59:59.000Z

454

Diode-pumped caesium vapour laser with closed-cycle laser-active medium circulation  

SciTech Connect

The creation of a caesium vapour laser with closed-cycle circulation of the laser-active medium is first reported. The power of the laser radiation amounted to {approx}1 kW with the 'light-to-light' conversion efficiency of {approx}48 %. Quasi-two-dimensional computational model of the laser operation that provides adequate description of experimental results is considered. Calculated and experimental dependences of the laser radiation power on the temperature of the cuvette walls, laser medium pressure and pump power are presented.

Bogachev, A V; Garanin, Sergey G; Dudov, A M; Eroshenko, V A; Kulikov, S M; Mikaelian, G T; Panarin, V A; Pautov, V O; Rus, A V; Sukharev, Stanislav A

2012-02-28T23:59:59.000Z

455

Plasma heating effects during laser welding  

SciTech Connect

Laser welding is a relatively low heat input process used in joining precisely machined components with minimum distortion and heat affects to surrounding material. The CO/sub 2/ (10.6 ..mu..m) and Nd-YAG (1.06 ..mu..m) lasers are the primary lasers used for welding in industry today. Average powers range up to 20 kW for CO/sub 2/ and 400 W for Nd-YAG with pulse lengths of milliseconds to continuous wave. Control of the process depends on an understanding of the laser-plasma-material interaction and characterization of the laser beam being used. Inherent plasma formation above the material surface and subsequent modulation of the incident laser radiation directly affect the energy transfer to the target material. The temporal and spatial characteristics of the laser beam affect the available power density incident on the target, which is important in achieving repeatability in the process. Other factors such as surface texture, surface contaminants, surface chemistry, and welding environment affect plasma formation which determines the weld penetration. This work involves studies of the laser-plasma-material interaction process and particularly the effect of the plasma on the coupling of laser energy to a material during welding. A pulsed Nd-YAG laser was used with maximum average power of 400 W.

Lewis, G.K.; Dixon, R.D.

1985-01-01T23:59:59.000Z

456

Laser Systems for Orbital Debris Removal  

SciTech Connect

The use of a ground based laser for space debris cleaning was investigated by the ORION project in 1996. Since that study the greatest technological advance in the development of high energy pulsed laser systems has taken place within the NIF project at LLNL. The proposed next laser system to follow the NIF at LLNL will be a high rep rate version of the NIF based on diode-pumping rather than flashlamp excitation; the so called 'LIFE' laser system. Because a single 'LIFE' beamline could be built up in a few year time frame, and has performance characteristics relevant to the space debris clearing problem, such a beamline could enable a near term demonstration of space debris cleaning. Moreover, the specifics of debris cleaning make it possible to simplify the LIFE laser beyond what is required for a fusion drive laser, and so substantially reduce its cost. Starting with the requirements for laser intensity on the target, and then considering beam delivery, we will flow back the laser requirements needed for space debris cleaning. Using these derived requirements we will then optimize the pulse duration, the operational regime, and the output pulse energy of the laser with a focus of simplifying its overall design. Anticipated simplifications include operation in the heat capacity regime, eliminating cooling requirements on the laser gain slabs, and relaxing B-integral and birefrigence requirements.

Rubenchik, A M; Barty, C P; Beach, R J; Erlandson, A C; Caird, J A

2010-02-05T23:59:59.000Z

457

Chandra Observation of MS 1455.0+2232: cold fronts in a massive cooling flow cluster?  

E-Print Network (OSTI)

We present the Chandra observation of the cluster of galaxies MS 1455.0+2232. From previous ASCA and ROSAT observations, this cluster was identified as a ``relaxed'' cluster that hosts one of the most massive cooling flows detected. With higher angular resolution, the Chandra X-ray image shows the presence of two surface brightness edges on opposite sides of the X-ray peak: the first at 190 kpc to the north and the second at 450 kpc to the south. Even though the low exposure of this observation limits our ability to constrain the temperature jump across both edges, we show that the northern edge is likely to be a ``cold front'' similar to others observed recently by Chandra in the clusters A2142, A3667, RX J1720.1+2638, and A2256. The observed cold front is most likely produced by the motion, from south to north, of a group-size dark matter halo. The most natural explanation for the presence of this observed moving subclump is that MS 1455.0+2232 is a merger cluster in the very last stage before it becomes fully relaxed. This scenario, however, appears to be unlikely as the cluster shows no further sign of ongoing merger. Moreover, it is not clear if a massive cooling flow could have survived this kind of merger. We propose an alternative scenario in which, as for RX J1720.1+2638, MS 1455.0+2232 is the result of the hierarchical collapse of two co-located density perturbations, the first a group-scale perturbation collapse followed by a second cluster-scale perturbation collapse that surrounded, but did not destroy, the first. We suggest that a cooling flow may have begun inside the already collapsed group-scale perturbation and may have been later amplified by the gas compression induced by the infall of the overlying main cluster mass.

P. Mazzotta; M. Markevitch; W. R. Forman; C. Jones; A. Vikhlinin; L. VanSpeybroeck

2001-08-29T23:59:59.000Z

458

Toward Joint Hypothesis-Tests Seismic Event Screening Analysis: Ms|mb and Event Depth  

SciTech Connect

Well established theory can be used to combine single-phenomenology hypothesis tests into a multi-phenomenology event screening hypothesis test (Fisher's and Tippett's tests). Commonly used standard error in Ms:mb event screening hypothesis test is not fully consistent with physical basis. Improved standard error - Better agreement with physical basis, and correctly partitions error to include Model Error as a component of variance, correctly reduces station noise variance through network averaging. For 2009 DPRK test - Commonly used standard error 'rejects' H0 even with better scaling slope ({beta} = 1, Selby et al.), improved standard error 'fails to rejects' H0.

Anderson, Dale [Los Alamos National Laboratory; Selby, Neil [AWE Blacknest

2012-08-14T23:59:59.000Z

459

Extreme Chromatography: Faster, Hotter, SmallerChapter 1 The Theory and Practice of UHPLC and UHPLC-MS  

Science Conference Proceedings (OSTI)

Extreme Chromatography: Faster, Hotter, Smaller Chapter 1 The Theory and Practice of UHPLC and UHPLC-MS Methods and Analyses eChapters Methods - Analyses Books AOCS Press Downloadable pdf of Chapter 1 The Theory a

460

Laser-driven fusion reactor  

DOE Patents (OSTI)

A laser-driven fusion reactor consisting of concentric spherical vessels in which the thermonuclear energy is derived from a deuterium-tritium (D + T) burn within a pellet'', located at the center of the vessels and initiated by a laser pulse. The resulting alpha -particle energy and a small fraction of the neutron energy are deposited within the pellet; this pellet energy is eventually transformed into sensible heat of lithium in a condenser outside the vessels. The remaining neutron energy is dissipated in a lithium blanket, located within the concentric vessels, where the fuel ingredient, tritium, is also produced. The heat content of the blanket and of the condenser lithium is eventually transferred to a conventional thermodynamic plant where the thermal energy is converted to electrical energy in a steam Rankine cycle. (Official Gazette)

Hedstrom, J.C.

1973-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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

Traveling-wave laser-produced-plasma energy source for photoionization laser pumping and lasers incorporating said  

SciTech Connect

A traveling-wave, laser-produced-plasma, energy source used to obtain single-pass gain saturation of a photoionization pumped laser. A cylindrical lens is used to focus a pump laser beam to a long line on a target. Grooves are cut in the target to present a surface near normal to the incident beam and to reduce the area, and hence increase the intensity and efficiency, of plasma formation.

Sher, Mark H. (Los Altos, CA); Macklin, John J. (Stanford, CA); Harris, Stephen E. (Palo Alto, CA)

1989-09-26T23:59:59.000Z

462

Multiple target laser ablation system  

DOE Patents (OSTI)

A laser ablation apparatus and method are provided in which multiple targets consisting of material to be ablated are mounted on a movable support. The material transfer rate is determined for each target material, and these rates are stored in a controller. A position detector determines which target material is in a position to be ablated, and then the controller controls the beam trigger timing and energy level to achieve a desired proportion of each constituent material in the resulting film.

Mashburn, Douglas N. (Knoxville, TN)

1996-01-01T23:59:59.000Z

463

Laser program annual report, 1979  

SciTech Connect

Volume 3 comprises three sections, beginning with Section 7 on advanced quantum electronics. Both theoretical and experimental research and development activities on advanced laser concepts in the quest for high efficiency and high repetition rate are presented. Section 8 contains the results of studies by the Energy and Military Applications group. Section 9 presents results from some of the activities of the advanced isotope separation program. (MOW)

Coleman, L.W.; Strack, J.R. (eds.)

1980-03-01T23:59:59.000Z

464

Vacuum barrier for excimer lasers  

DOE Patents (OSTI)

This invention is comprised of a barrier for separating the vacuum area of a diode from the pressurized gas area of an excimer laser. The barrier is a composite material comprising layers of a metal such as copper, along with layers of polyimide, and a matrix of graphite fiber yearns impregnated with epoxy. The barrier is stronger than conventional foil barriers, and allows greater electron throughput.

Shurter, R.P.

1990-10-10T23:59:59.000Z

465

Laser induced phosphorescence uranium analysis  

DOE Patents (OSTI)

A method is described for measuring the uranium content of aqueous solutions wherein a uranyl phosphate complex is irradiated with a 5 nanosecond pulse of 425 nanometer laser light and resultant 520 nanometer emissions are observed for a period of 50 to 400 microseconds after the pulse. Plotting the natural logarithm of emission intensity as a function of time yields an intercept value which is proportional to uranium concentration.

Bushaw, B.A.

1983-06-10T23:59:59.000Z

466

Market Research Survey of Commercial Off-The-Shelf (COTS) Portable MS Systems for IAEA Safeguards Applications  

SciTech Connect

This report summarizes the results for the market research survey of mass spectrometers that are deemed pertinent to International Atomic Energy Agency (IAEA) needs and strategic objectives. The focus of the report is on MS instruments that represent currently available (or soon to be) commercial off-the shelf (COTS) technology and weigh less than 400 pounds. A compilation of all available MS instruments (36 COTS and 2 R&D) is presented, along with pertinent information regarding each instrument.

Hart, Garret L.; Hager, George J.; Barinaga, Charles J.; Duckworth, Douglas C.

2013-02-01T23:59:59.000Z

467

Scattering apodizer for laser beams  

SciTech Connect

A method is disclosed for apodizing a laser beam to smooth out the production of diffraction peaks due to optical discontinuities in the path of the laser beam, such method comprising introduction of a pattern of scattering elements for reducing the peak intensity in the region of such optical discontinuities, such pattern having smoothly tapering boundaries in which the distribution density of the scattering elements is tapered gradually to produce small gradients in the distribution density, such pattern of scattering elements being effective to reduce and smooth out the diffraction effects which would otherwise be produced. The apodizer pattern may be produced by selectively blasting a surface of a transparent member with fine abrasive particles to produce a multitude of minute pits. In one embodiment, a scattering apodizer pattern is employed to overcome diffraction patterns in a multiple element crystal array for harmonic conversion of a laser beam. The interstices and the supporting grid between the crystal elements are obscured by the gradually tapered apodizer pattern of scattering elements.

Summers, Mark A. (Livermore, CA); Hagen, Wilhelm F. (Livermore, CA); Boyd, Robert D. (Livermore, CA)

1985-01-01T23:59:59.000Z

468

Scattering apodizer for laser beams  

DOE Patents (OSTI)

A method is disclosed for apodizing a laser beam to smooth out the production of diffraction peaks due to optical discontinuities in the path of the laser beam, such method comprising introduction of a pattern of scattering elements for reducing the peak intensity in the region of such optical discontinuities, such pattern having smoothly tapering boundaries in which the distribution density of the scattering elements is tapered gradually to produce small gradients in the distribution density, such pattern of scattering elements being effective to reduce and smooth out the diffraction effects which would otherwise be produced. The apodizer pattern may be produced by selectively blasting a surface of a transparent member with fine abrasive particles to produce a multitude of minute pits. In one embodiment, a scattering apodizer pattern is employed to overcome diffraction patterns in a multiple element crystal array for harmonic conversion of a laser beam. The interstices and the supporting grid between the crystal elements are obscured by the gradually tapered apodizer pattern of scattering elements.

Summers, M.A.; Hagen, W.F.; Boyd, R.D.

1984-01-01T23:59:59.000Z

469

High Energy Laser Diagnostic Sensors  

Science Conference Proceedings (OSTI)

Recent advancements in high energy laser (HEL) sources have outpaced diagnostic tools capable of accurately quantifying system performance. Diagnostic tools are needed that allow system developers to measure the parameters that define HEL effectiveness. The two critical parameters for quantifying HEL effectiveness are the irradiance on target and resultant rise in target temperature. Off-board sensing has its limitations, including unpredictable changes in the reflectivity of the target, smoke and outgassing, and atmospheric distortion. On-board sensors overcome the limitations of off-board techniques but must survive high irradiance levels and extreme temperatures.We have developed sensors for on-target diagnostics of high energy laser beams and for the measurement of the thermal response of the target. The conformal sensors consist of an array of quantum dot photodetectors and resistive temperature detectors. The sensor arrays are lithographically fabricated on flexible substrates and can be attached to a variety of laser targets. We have developed a nanoparticle adhesive process that provides good thermal contact with the target and that ensures the sensor remains attached to the target for as long as the target survives. We have calibrated the temperature and irradiance sensors and demonstrated them in a HEL environment.

Luke, James R.; Goddard, Douglas N.; Thomas, David [AEgis Technologies Group, 10501 Research Rd SE, Suite D, Albuquerque, NM 87123, 505-938-9221 (United States); Lewis, Jay [RTI International, Research Triangle Park, NC (United States)

2010-10-08T23:59:59.000Z

470

Laser sealed evacuated window glazings  

SciTech Connect

The design and fabrication of a highly insulating, evacuated window glazing have been investigated. A thermal network model has been used to parametrically predict the thermal performance of such a window. Achievable design, options are predicted to provide a glazing with a thermal conductance less than 0.6 W/m/sup 2/K (R > 10/sup 0/F ft/sup 2/ h/Btu) which is compact, lightweight, and durable. A CO/sub 2/ laser has been used to produce a continuous, leak tight, welded glass perimeter seal around 25 x 25 cm/sup 2/ test specimens. Various diameters of regularly spaced spherical support spacers were incorporated in the specimens as well as an integral SnO/sub 2/:F transparent, low emissivity coating for suppression of radiative heat transfer. Laser sealing rates of .06 cm/s were achieved at a 580/sup 0/C glass working temperature with 400 W of continuous wave (CW) laser power.

Benson, D.K.; Tracy, C.E.; Jorgensen, G.J.

1984-10-01T23:59:59.000Z

471

Novel materials for laser refrigeration  

SciTech Connect

The status of optical refrigeration of rare-earth-doped solids is reviewed, and the various factors that limit the performance of current laser-cooling materials are discussed. Efficient optical refrigeration is possible in materials for which {Dirac_h}{omega}{sub max} < E{sub p}/8, where {Dirac_h}{omega}{sub max} is the maximum phonon energy of the host material and E{sub p} is the pump energy of the rare-earth dopant. Transition-metal and OH{sup -}impurities at levels >100 ppb are believed to be the main factors for the limited laser-cooling performance in current materials. The many components of doped ZBLAN glass pose particular processing challenges. Binary fluoride glasses such as YF{sub 3}-LiF are considered as alternatives to ZBLAN. The crystalline system KPb{sub 2}CI{sub 5} :Dy{sup 3+} is identified as a prime candidate for high-efficiency laser cooling.

Hehlen, Markus P [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

472

Web Site: http://www.coop-program.engr.uga.edu/ms.html UGA Cooperative Engineering Program Development Key Points and Notes.docx  

E-Print Network (OSTI)

Web Site: http://www.coop-program.engr.uga.edu/ms.html UGA Cooperative Engineering Program;Web Site: http://www.coop-program.engr.uga.edu/ms.html UGA Cooperative Engineering Program Development can be earned for their degree. #12;Web Site: http://www.coop-program.engr.uga.edu/ms.html UGA

Arnold, Jonathan

473

Laser systems configured to output a spectrally-consolidated laser beam and related methods  

SciTech Connect

A laser apparatus includes a plurality of pumps each of which is configured to emit a corresponding pump laser beam having a unique peak wavelength. The laser apparatus includes a spectral beam combiner configured to combine the corresponding pump laser beams into a substantially spatially-coherent pump laser beam having a pump spectrum that includes the unique peak wavelengths, and first and second selectively reflective elements spaced from each other to define a lasing cavity including a lasing medium therein. The lasing medium generates a plurality of gain spectra responsive to absorbing the pump laser beam. Each gain spectrum corresponds to a respective one of the unique peak wavelengths of the substantially spatially-coherent pump laser beam and partially overlaps with all other ones of the gain spectra. The reflective elements are configured to promote emission of a laser beam from the lasing medium with a peak wavelength common to each gain spectrum.

Koplow, Jeffrey P. (San Ramon, CA)

2012-01-10T23:59:59.000Z

474

Laser Controlled Area Standard Operating Procedure (SOP)  

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

3 3 001 Effective: Page 1 of 11/18/11 11 Subject: Laser Safety Program Documentation Bldg 703 E3/E4 3.1/2g03e011.doc 1 (02/2010) BROOKHAVEN NATIONAL LABORATORY LASER CONTROLLED AREA STANDARD OPERATING PROCEDURE (SOP) This document defines the safety management program for the laser system(s) listed below. All American National Standard Institute (ANSI) Hazard Class 3B and 4 laser systems must be documented, reviewed, and approved through use of this form. Each system must be reviewed annually. Modify the template for this document to fit your particular circumstance. System description: MOS laser curvature measurement system - Thin Film Deposition Lab Location: 703, E2/E4 LINE MANAGEMENT RESPONSIBILITIES The Owner/Operator(s) for this laser is/are listed below. The Owner/Operator is the Line Manager of the

475

Laser Controlled Area Standard Operating Procedure (SOP)  

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

6 4 6 4 Effective: Page 1 of 18 09/16/2011 Subject: Laser Safety Program Documentation: U2A The only official copy of this file is the one on-line in the PS ESH website. Before using a printed copy, verify that it is the most current version by checking the document issue date on the PS ESH website. BROOKHAVEN NATIONAL LABORATORY LASER CONTROLLED AREA STANDARD OPERATING PROCEDURE (SOP) U2A Laser Systems This document defines the safety management program for the laser system(s) listed below. All American National Standard Institute (ANSI) Hazard Class 3B and 4 laser systems must be documented, reviewed, and approved through use of this form. Each system must be reviewed annually. System description: There are 4 lasers installed at beamline U2A for diamond anvil cell experiments:

476

Mars mission laser tool heads to JPL  

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

Mars mission laser tool Mars mission laser tool Mars mission laser tool heads to JPL Curiosity will carry the newly delivered laser instrument to reveal which elements are present in Mars' rocks and soils. September 21, 2010 A bright ball of plasma is produced by ChemCam's invisible laser beam striking a rock within the Mars sample chamber. A bright ball of plasma is produced by ChemCam's invisible laser beam striking a rock within the Mars sample chamber. Contact Nancy Ambrosiano Communications Office (505) 667-0471 Email "ChemCam will act as a geochemical observatory, providing composition data to understand if Mars was, is, or will be a habitable world." Star Wars photon gun will give Mars rover hands-free rock ID LOS ALAMOS, New Mexico, September 21, 2010-The ChemCam instrument has

477

Ultrashort pulse laser deposition of thin films  

DOE Patents (OSTI)

Short pulse PLD is a viable technique of producing high quality films with properties very close to that of crystalline diamond. The plasma generated using femtosecond lasers is composed of single atom ions with no clusters producing films with high Sp.sup.3 /Sp.sup.2 ratios. Using a high average power femtosecond laser system, the present invention dramatically increases deposition rates to up to 25 .mu.m/hr (which exceeds many CVD processes) while growing particulate-free films. In the present invention, deposition rates is a function of laser wavelength, laser fluence, laser spot size, and target/substrate separation. The relevant laser parameters are shown to ensure particulate-free growth, and characterizations of the films grown are made using several diagnostic techniques including electron energy loss spectroscopy (EELS) and Raman spectroscopy.

Perry, Michael D. (Livermore, CA); Banks, Paul S. (Livermore, CA); Stuart, Brent C. (Fremont, CA)

2002-01-01T23:59:59.000Z

478

Visible light surface emitting semiconductor laser  

DOE Patents (OSTI)

A vertical-cavity surface-emitting laser is disclosed comprising a laser cavity sandwiched between two distributed Bragg reflectors. The laser cavity comprises a pair of spacer layers surrounding one or more active, optically emitting quantum-well layers having a bandgap in the visible which serve as the active optically emitting material of the device. The thickness of the laser cavity is m .lambda./2n.sub.eff where m is an integer, .lambda. is the free-space wavelength of the laser radiation and n.sub.eff is the effective index of refraction of the cavity. Electrical pumping of the laser is achieved by heavily doping the bottom mirror and substrate to one conductivity-type and heavily doping regions of the upper mirror with the opposite conductivity type to form a diode structure and applying a suitable voltage to the diode structure. Specific embodiments of the invention for generating red, green, and blue radiation are described.

Olbright, Gregory R. (Boulder, CO); Jewell, Jack L. (Bridgewater, NJ)

1993-01-01T23:59:59.000Z

479

Laser diode package with enhanced cooling  

Science Conference Proceedings (OSTI)

A laser diode package assembly includes a reservoir filled with a fusible metal in close proximity to a laser diode. The fusible metal absorbs heat from the laser diode and undergoes a phase change from solid to liquid during the operation of the laser. The metal absorbs heat during the phase transition. Once the laser diode is turned off, the liquid metal cools off and resolidifies. The reservoir is designed such that that the liquid metal does not leave the reservoir even when in liquid state. The laser diode assembly further includes a lid with one or more fin structures that extend into the reservoir and are in contact with the metal in the reservoir.

Deri, Robert J.; Kotovsky, Jack; Spadaccini, Christopher M.

2012-06-26T23:59:59.000Z

480

Laser diode package with enhanced cooling  

Science Conference Proceedings (OSTI)

A laser diode package assembly includes a reservoir filled with a fusible metal in close proximity to a laser diode. The fusible metal absorbs heat from the laser diode and undergoes a phase change from solid to liquid during the operation of the laser. The metal absorbs heat during the phase transition. Once the laser diode is turned off, the liquid metal cools off and resolidifies. The reservoir is designed such that that the liquid metal does not leave the reservoir even when in liquid state. The laser diode assembly further includes a lid with one or more fin structures that extend into the reservoir and are in contact with the metal in the reservoir.

Deri, Robert J. (Pleasanton, CA); Kotovsky, Jack (Oakland, CA); Spadaccini, Christopher M. (Oakland, CA)

2012-06-12T23:59:59.000Z

Note: This page contains sample records for the topic "laser ms bransby" 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.


481

Coupling apparatus for a metal vapor laser  

DOE Patents (OSTI)

Coupling apparatus for a large bore metal vapor laser is disclosed. The coupling apparatus provides for coupling high voltage pulses (approximately 40 KV) to a metal vapor laser with a high repetition rate (approximately 5 KHz). The coupling apparatus utilizes existing thyratron circuits and provides suitable power input to a large bore metal vapor laser while maintaining satisfactory operating lifetimes for the existing thyratron circuits.

Ball, D.G.; Miller, J.L.

1993-02-23T23:59:59.000Z

482

Grating enhanced solid-state laser amplifiers  

DOE Patents (OSTI)

A novel method and apparatus for suppressing ASE and parasitic oscillation modes in a high average power laser is introduced. Such an invention, as disclosed herein, uses diffraction gratings to increase gain, stored energy density, and pumping efficiency of solid-state laser gain media, such as, but not limited to rods, disks and slabs. By coupling predetermined gratings to solid-state gain media, such as crystal or ceramic laser gain media, ASE and parasitic oscillation modes can be effectively suppressed.

Erlandson, Alvin C. (Livermore, CA); Britten, Jerald A. (Clayton, CA)

2010-11-09T23:59:59.000Z

483

Gratings for High-Energy Petawatt Lasers  

Science Conference Proceedings (OSTI)

To enable high-energy petawatt laser operation we have developed the processing methods and tooling that produced both the world's largest multilayer dielectric reflection grating and the world's highest laser damage resistant gratings. We have successfully delivered the first ever 80 cm aperture multilayer dielectric grating to LLNL's Titan Intense Short Pulse Laser Facility. We report on the design, fabrication and characterization of multilayer dielectric diffraction gratings.

Nguyen, H T; Britten, J A; Carlson, T C; Nissen, J D; Summers, L J; Hoaglan, C R; Aasen, M D; Peterson, J E; Jovanovic, I

2005-11-08T23:59:59.000Z

484

Ballast technique for laser cathode pins  

SciTech Connect

The discrete ballast resistors associated with the multiple pin array of laser cathode structures are replaced by a bulk resistive material in the form of an integral bar or slab which is maintained in contact with the plurality of pin electrodes comprising the laser cathode assembly to provide a stable ballast means. The bulk resistive member employed to provide the ballast for the pin electrodes can exhibit non-linear resistive characteristics to provide greater laser discharge stability with less power dissipation.

Hundstad, R.L.; Wutzke, S.A.

1979-09-04T23:59:59.000Z

485

The Luminosity Function of MS2255.7+2039 at z=0.288  

E-Print Network (OSTI)

The luminosity function of MS2255.7+2039 at z=0.288 is determined down to atotal magnitude of R ~ 24, corresponding to M_R ~ -17 (H_0 = 50 km/s/Mpc). Thedata are corrected for incompleteness and crowding using detailed simulations.We find that the luminosity function is steeper than a standard Schechterfunction at faint magnitudes, and shows an excess of galaxies below M_R ~ -19.After corrections for light loss and crowding, the data can be described by asum of two Schechter functions, one with M_R = -22.8 and alpha = -1.0, and onesteeper with M_R = -18.9 and alpha = -1.5, representing the dwarf population. Astraight-line fit to the faint part yields a slope similar to the Schechteralpha = -1.5 of the dwarf population. The luminosity function of MS2255.7+2039is compared to other clusters at lower redshifts, and does not show anysignificant difference. The redshift range for clusters in which increasednumber of dwarf galaxies have been found is therefore extended to higherredshifts.

Naslund, M; Huldtgren, M

2000-01-01T23:59:59.000Z

486

Pure electron plasmas confined for 90 ms in a stellarator without electron sources or internal objects  

SciTech Connect

We report on the creation and up to 90 ms sustainment of pure electron plasmas confined in a stellarator without internal objects. Injection of positrons into such plasmas is expected to lead to the creation of the first electron-positron plasma experiments. These newly created plasmas will also allow a study of pure electron plasmas without the perturbing presence of internal objects. The plasmas were created by thermionic emission of electrons from a heated, biased filament that was retracted in 20 ms. The confinement of these transient plasmas is different from that of steady state plasmas with internal objects and emissive filaments, and is generally shorter, limited by ion buildup. The decay time is increased by lowering the neutral pressure, lowering the electron plasma temperature, or operating with neutrals with high ionization energies (helium). These findings are all consistent with ion accumulation being the cause for the shorter than expected confinement times. The magnetic field strength also moderately increases the decay times. The deleterious effect of ions is not expected to imply a similar deleterious effect when introducing positrons, but it implies that ion accumulation must be avoided also in an electron-positron experiment.

Brenner, P. W.; Sunn Pedersen, T.

2012-05-15T23:59:59.000Z

487

Operational plasma density and laser parameters for future colliders based on laser-plasma accelerators  

SciTech Connect

The operational plasma density and laser parameters for future colliders based on laser-plasma accelerators are discussed. Beamstrahlung limits the charge per bunch at low plasma densities. Reduced laser intensity is examined to improve accelerator efficiency in the beamstrahlung-limited regime.

Schroeder, C. B.; Esarey, E.; Leemans, W. P. [Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)

2012-12-21T23:59:59.000Z

488

Reduction of Solvent Effect in Reverse Phase Gradient Elution LC-ICP-MS  

DOE Green Energy (OSTI)

Quantification in liquid chromatography (LC) is becoming very important as more researchers are using LC, not as an analytical tool itself, but as a sample introduction system for other analytical instruments. The ability of LC instrumentation to quickly separate a wide variety of compounds makes it ideal for analysis of complex mixtures. For elemental speciation, LC is joined with inductively coupled plasma mass spectrometry (ICP-MS) to separate and detect metal-containing, organic compounds in complex mixtures, such as biological samples. Often, the solvent gradients required to perform complex separations will cause matrix effects within the plasma. This limits the sensitivity of the ICP-MS and the quantification methods available for use in such analyses. Traditionally, isotope dilution has been the method of choice for LC-ICP-MS quantification. The use of naturally abundant isotopes of a single element in quantification corrects for most of the effects that LC solvent gradients produce within the plasma. However, not all elements of interest in speciation studies have multiple naturally occurring isotopes; and polyatomic interferences for a given isotope can develop within the plasma, depending on the solvent matrix. This is the case for reverse phase LC separations, where increasing amounts of organic solvent are required. For such separations, an alternative to isotope dilution for quantification would be is needed. To this end, a new method was developed using the Apex-Q desolvation system (ESI, Omaha, NE) to couple LC instrumentation with an ICP-MS device. The desolvation power of the system allowed greater concentrations of methanol to be introduced to the plasma prior to destabilization than with direct methanol injection into the plasma. Studies were performed, using simulated and actual linear methanol gradients, to find analyte-internal standard (AIS) pairs whose ratio remains consistent (deviations {+-} 10%) over methanol concentration ranges of 5%-35% (simulated) and 8%-32% (actual). Quadrupole (low resolution) and sector field (high resolution) ICP-MS instrumentation were utilized in these studies. Once an AIS pair is determined, quantification studies can be performed. First, an analysis is performed by adding both elements of the AIS pair post-column while performing the gradient elution without sample injection. A comparison of the ratio of the measured intensities to the atomic ratio of the two standards is used to determine a correction factor that can be used to account for the matrix effects caused by the mobile phase. Then, organic and/or biological molecules containing one of the two elements in the AIS pair are injected into the LC column. A gradient method is used to vary the methanol-water mixture in the mobile phase and to separate out the compounds in a given sample. A standard solution of the second ion in the AIS pair is added continuously post-column. By comparing the ratio of the measured intensities to the atomic ratio of the eluting compound and internal standard, the concentration of the injected compound can be determined.

Patrick Allen Sullivan

2005-12-17T23:59:59.000Z

489

Laser Spark Distribution and Ignition System  

Laser Spark Distribution and Ignition System Opportunity The Department of Energys National Energy Technology Laboratory (NETL) is seeking licensing partners ...

490

Laser Welding for Nuclear Power Systems  

Science Conference Proceedings (OSTI)

Enhancement of Intergranular Corrosion Resistance of TIG Welded and Laser- surface Melted SUS 304 for Nuclear Power Plants Evaluation of Nanofeature...

491

Fundamentals in Laser Additive Manufacturing of Metals  

Science Conference Proceedings (OSTI)

Presentation Title, Fundamentals in Laser Additive Manufacturing of Metals. Author(s), Xinjin Cao, Yinan Zhang, Priti Wanjara, Mamoun Medraj. On-Site Speaker...

492

Specific energy for pulsed laser rock drilling  

Science Conference Proceedings (OSTI)

Application of advanced high power laser technology to oil and gas well drilling has been attracting significant research interests recently among research institutes

Z. Xu; C. B. Reed; G. Konercki; R. A. Parker; B. C. Gahan; S. Batarseh; R. M. Graves; H. Figueroa; N. Skinner

2003-01-01T23:59:59.000Z

493

Laser Mapping of Carbon Bake Furnaces  

Science Conference Proceedings (OSTI)

During commissioning, CSIRO used its 3D laser scanning technology to map the CBF. A sensor ... High Capacity Thermobalance Anode Reactivity Testing.

494

Gas Lasers for Strong Field Applications  

SciTech Connect

Atomic, molecular and excimer gas lasers employ variety of pumping schemes including electric discharge, optical, or chemical reactions and cover a broad spectral range from UV to far-IR. Several types of gas lasers are capable to produce multi-kilojoule pulses and kilowatts of average power. Among them, excimer and high-pressure molecular lasers have sufficient bandwidth for producing pico- and femtosecond pulses. Projects are under way and prospects are open to bring ultra-fast gas laser technology to the front lines of the advanced accelerator applications.

Pogorelsky, I.V. [Accelerator Test Facility, Brookhaven National Laboratory, 820, Upton, NY 11973 (United States)

2004-12-07T23:59:59.000Z

495

GAS LASERS FOR STRONG-FIELD APPLICATIONS.  

SciTech Connect

Atomic-, molecular- and excimer-gas lasers employ variety of pumping schemes including electric discharge, optical, or chemical reactions and cover a broad spectral range from UV to far-IR. Several types of gas lasers can produce multi-kilojoule pulses and kilowatts of average power. Among them, excimer- and high-pressure molecular lasers have sufficient bandwidth for generating pico- and femtosecond pulses. Projects are underway and prospects are opening up to bring ultrafast gas laser technology to the front lines of advanced accelerator applications.

POGORELSKY,I.V.

2004-09-15T23:59:59.000Z

496

Inductive gas line for pulsed lasers  

DOE Patents (OSTI)

A gas laser having a metal inlet gas feed line assembly shaped as a coil, to function as an electrical inductance and therefore high impedance to pulses of electric current applied to electrodes at opposite ends of a discharge tube of a laser, for example. This eliminates a discharge path for the laser through the inlet gas feed line. A ferrite core extends through the coil to increase the inductance of the coil and provide better electric isolation. By elimination of any discharge breakdown through the gas supply, efficiency is increased and a significantly longer operating lifetime of the laser is provided.

Benett, W.J.; Alger, T.W.

1982-09-29T23:59:59.000Z

497

High-Energy Laser Ponderomotive Acceleration  

SciTech Connect

A new concept of TeV-range laser ponderomotive acceleration in a plasma is proposed. Particles are accelerated in the point-like scattering by the leading front of the laser pulse, propagating at the group velocity less than the vacuum speed of light. In this scheme, the gain in particle energy is determined by the group velocity and does not depend on laser intensity, which determines the quantum probability of acceleration. The quantum and classical analysis of the scheme proposed is presented. Estimates show that the concept proposed is a promising technique for compact laser acceleration of TeV energy range.

Smetanin, I.V.; /Lebedev Inst.; Barnes, C.; /SLAC; Nakajima, K.; /KEK, Tsukuba

2006-03-10T23:59:59.000Z

498

Silicon Nano-Crystal Waveguide (SNOW) Laser  

Silicon Nano-Crystal Waveguide (SNOW) Laser Note: The technology described above is an early stage opportunity. Licensing rights to this intellectual property may

499

Acro Solar Lasers | Open Energy Information  

Open Energy Info (EERE)

search Name Acro Solar Lasers Place El Paso, Texas Zip 79936 Sector Solar Product Makes solar water heating devices based on parabolic dish concentrators. References Acro Solar...

500

Laser Controlled Area Standard Operating Procedure (SOP)  

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

PROCEDURE (SOP) This document defines the safety management program for the laser system listed below. All American National Standard Institute (ANSI) Hazard Class 3b and 4...