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Note: This page contains sample records for the topic "lab laser accelerator" from the National Library of EnergyBeta (NLEBeta).
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1

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

2

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

E-Print Network (OSTI)

used at the world's first x-ray free electron laser (FEL) at the LCLS at SLAC, and the lower energyThe BErkeley Lab Laser Accelerator (BELLA): A 10 GeV Laser Plasma Accelerator W.P. Leemansa,b,c , R, USA Abstract. An overview is presented of the design of a 10 GeV laser plasma accelerator (LPA

Geddes, Cameron Guy Robinson

3

#LabChat: Particle Accelerators, Lasers and Discovery Science, May 17 at  

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

Particle Accelerators, Lasers and Discovery Science, May Particle Accelerators, Lasers and Discovery Science, May 17 at 1pm EST #LabChat: Particle Accelerators, Lasers and Discovery Science, May 17 at 1pm EST May 15, 2012 - 2:03pm Addthis SLAC’s linac accelerates very short pulses of electrons to 99.9999999 percent the speed of light through a slalom that causes the electrons to emit X-rays, which become synchronized as they interact with the electron pulses and create the world’s brightest X-ray laser pulse. | Photo by Brad Plummer, SLAC. SLAC's linac accelerates very short pulses of electrons to 99.9999999 percent the speed of light through a slalom that causes the electrons to emit X-rays, which become synchronized as they interact with the electron pulses and create the world's brightest X-ray laser pulse. | Photo by

4

About Accelerators | Jefferson Lab  

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

Accelerator Brochure top-right bottom-left-corner bottom-right-corner About Accelerators Jefferson Lab is home to two superconducting radiofrequency accelerators: the...

5

LASER ACCELERATORS  

E-Print Network (OSTI)

UNIVERSITY OF CALIFORNIA Accelerator & Fusion Researchat the 1983 Particle Accelerator Conference, Santa Fe, NM,March 21-23, 1983 LASER ACCELERATORS A.M. Sessler TWO-WEEK

Sessler, A.M.

2008-01-01T23:59:59.000Z

6

Simulation prediction and experiment setup of vacuum laser acceleration at Brookhaven National Lab-Accelerator Test Facility  

Science Journals Connector (OSTI)

This paper presents the pre-experiment plan and prediction of the first stage of vacuum laser acceleration (VLA) collaborating by UCLA, Fudan University and ATF-BNL. This first stage experiment is a proof-of-principle to support our previously posted novel VLA theory. Simulations show that based on ATF's current experimental conditions the electron beam with initial energy of 15MeV can get net energy gain from an intense CO2 laser beam. The difference in electron beam energy spread is observable by the ATF beam line diagnostics system. Further, this energy spread expansion effect increases along with an increase in laser intensity. The proposal has been approved by the ATF committee and the experiment will be our next project.

L. Shao; D. Cline; X. Ding; Y.K. Ho; Q. Kong; J.J. Xu; I. Pogorelsky; V. Yakimenko; K. Kusche

2013-01-01T23:59:59.000Z

7

Lab announces Venture Acceleration  

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

Inc., and ThermaSun Inc. as recipients of awards from the Los Alamos National Security, LLC Venture Acceleration Fund. The Laboratory's Venture Acceleration Fund provides...

8

Tunable Laser Reaches Record Power Level | Jefferson Lab  

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

Tunable Laser Reaches Record Power Level July 20, 1999 Researchers at the U.S. Department of Energy's Thomas Jefferson National Accelerator Facility (Jefferson Lab) have produced...

9

Optoelectronics Lab #0 Saftey Laser Safety  

E-Print Network (OSTI)

Optoelectronics Lab #0 Saftey Laser Safety 7.0 Laser Hazard Analysis Before appropriate controls directly for an extended period (greater than 1000 seconds). Page 1 #12;Optoelectronics Lab #0 Saftey 3

Collins, Gary S.

10

SLAC All Access: Laser Labs  

SciTech Connect

From supermarket checkouts to video game consoles, lasers are ubiquitous in our lives. Here at SLAC, high-power lasers are critical to the cutting-edge research conducted at the laboratory. But, despite what you might imagine, SLAC's research lasers bear little resemblance to the blasters and phasers of science fiction. In this edition of All Access we put on our safety goggles for a peek at what goes on inside some of SLAC's many laser labs. LCLS staff scientist Mike Minitti and SLAC laser safety officer Mike Woods detail how these lasers are used to study the behavior of subatomic particles, broaden our understanding of cosmic rays and even unlock the mysteries of photosynthesis.

Minitti, Mike; Woods Mike

2013-03-01T23:59:59.000Z

11

Laser Wakefield Particle Accelerators Project at NERSC  

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

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

12

Jefferson Lab Laser Twinkles in Rare Color | Jefferson Lab  

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

Laser Twinkles in Rare Color NEWPORT NEWS, VA, Dec. 21 - December is a time for twinkling lights, and scientists at the Department of Energy's Thomas Jefferson National Accelerator...

13

Reaching New Heights in Accelerator Technology | Jefferson Lab  

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

Continuous Electron Beam Accelerator Facility (CEBAF) is a dedicated nuclear physics accelerator, Jefferson Lab staff members possess extensive knowledge and experience in...

14

Laser acceleration of ion beams  

E-Print Network (OSTI)

We consider methods of charged particle acceleration by means of high-intensity lasers. As an application we discuss a laser booster for heavy ion beams provided, e.g. by the Dubna nuclotron. Simple estimates show that a cascade of crossed laser beams would be necessary to provide additional acceleration to gold ions of the order of GeV/nucleon.

I. A. Egorova; A. V. Filatov; A. V. Prozorkevich; S. A. Smolyansky; D. B. Blaschke; M. Chubaryan

2007-02-01T23:59:59.000Z

15

Free-Electron Laser | Jefferson Lab  

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

Research Inspecting an injector assembly at Jefferson Lab's Free-Electron Laser. A D D I T I O N A L L I N K S: FEL Users FEL Description JLAMP Proposal Applications FEL News...

16

Laser Guiding for GeV Laser-Plasma Accelerators  

E-Print Network (OSTI)

Overview of plasma-based accelerator concepts. IEEE Trans.using laser wake?eld accelerators. Meas. Sci. Technol. 12,for GeV laser-plasma accelerators. In Advanced Accelerator

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

2005-01-01T23:59:59.000Z

17

Charge Diagnostics for Laser Plasma Accelerators  

E-Print Network (OSTI)

the 1989 Particle Accelerator Conference, IEEE, Piscataway,Diagnostics for Laser Plasma Accelerators K . Nakamura, A .ALS) synchrotron booster accelerator. The sensitivity of the

Nakamura, K.

2011-01-01T23:59:59.000Z

18

Lab announces Venture Acceleration Fund recipients  

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

Inc., and ThermaSun Inc. as recipients of awards from the Los Alamos National Security, LLC Venture Acceleration Fund. The Laboratory's Venture Acceleration Fund provides...

19

Nonlinear laser energy depletion in laser-plasma accelerators  

E-Print Network (OSTI)

Lee- mans, in Advanced Accelerator Concepts, Eleventh Work-in laser-plasma accelerators ? B. A. Shadwick, 1, C. B.ac- celerators. Laser-plasma accelerators, for example, have

Shadwick, B.A.

2009-01-01T23:59:59.000Z

20

Lab Breakthrough: Supercomputing Power to Accelerate Fossil Energy Research  

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

Supercomputing Power to Accelerate Fossil Energy Supercomputing Power to Accelerate Fossil Energy Research Lab Breakthrough: Supercomputing Power to Accelerate Fossil Energy Research September 30, 2013 - 4:49pm Addthis At the heart of the Simulation-Based Engineering User Center (SBEUC) is a high-performance computer that enables the simulation of processes or technologies that are difficult or impossible to demonstrate using traditional methods. | Video by the National Energy Technology Laboratory. Ben Dotson Ben Dotson Project Coordinator for Digital Reform, Office of Public Affairs How can I participate? Watch the video and learn more about the National Labs and their work in high performance computing. The Lab Breakthroughs series features videos produced by each of the National Labs about their game-changing innovations and discoveries. To see

Note: This page contains sample records for the topic "lab laser accelerator" 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-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

22

Staging laser plasma accelerators for increased beam energy  

E-Print Network (OSTI)

Staging Laser Plasma Accelerators for Increased Beam EnergyStaging laser plasma accelerators is an efficient way ofcompact laser-plasma accelerators to generate particle

Panasenko, Dmitriy

2010-01-01T23:59:59.000Z

23

Ultrafast Diagnostics for Electron Beams from Laser Plasma Accelerators  

E-Print Network (OSTI)

for Laser Plasma Accelerators," in this proceedings, 2010.Based Laser Wakefield Accelerator Electron Beam EnergyMotion in a Laser-Plasma Accelerator," in this proceedings,

Matlis, N. H.

2011-01-01T23:59:59.000Z

24

Lab seeks ideas for Venture Acceleration Fund  

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

for these Venture Acceleration Fund awards, which have already produced a significant return on investment for the regional companies that have received them," said Padilla....

25

LASER SAFETY SELF-INSPECTION CHECKLIST Lab Supervisor _________________________ Inspected By: __________________________  

E-Print Network (OSTI)

LASER SAFETY SELF-INSPECTION CHECKLIST Lab Supervisor _________________________ Inspected By, and alignment procedures kept with laser equipment? yes no 3. Have all commercially produced Class 3b and 4 lasers and all lasers made or modified on campus been registered with the University's Laser Safety

Bolch, Tobias

26

Accelerated ring laser  

Science Journals Connector (OSTI)

The behavior of a ring laser rotating with nonuniform angular velocity has become of interest, both experimental and theoretical. Within a framework of modest idealizations, we present a classical, relativistically exact theoretical analysis. The beat frequency, we find, is given by an expression of the Sagnac form but with the instantaneous angular velocity in place of the usual constant velocity. One has an "instantaneous Sagnac effect."

Takamasa Takahashi and Ralph Baierlein

1977-02-01T23:59:59.000Z

27

Lab Breakthrough: Fermilab Accelerator Technology | Department of Energy  

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

Fermilab Accelerator Technology Fermilab Accelerator Technology Lab Breakthrough: Fermilab Accelerator Technology May 14, 2012 - 10:51am Addthis At Fermilab, scientists are collaborating with other laboratories and industry to optimize the manufacturing processes for a new type of powerful accelerator that uses superconducting niobium cavities. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs Where are these 30,000 particle accelerators? Most of them in medicine and manufacturing fields. They treat cancer, cure inks on cereal boxes, sterilize medical supplies, create better shrink wrap, spot suspicious cargo, clean up dirty drinking water, and help design drugs. Fermi National Accelerator Laboratory scientist Stuart Henderson took some time discuss the role of particle accelerators in basic science,

28

Jefferson Lab Virtual Tour  

ScienceCinema (OSTI)

Take a virtual tour of the campus of Thomas Jefferson National Accelerator Facility. You can see inside our two accelerators, three experimental areas, accelerator component fabrication and testing areas, high-performance computing areas and laser labs.

None

2014-05-22T23:59:59.000Z

29

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

30

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

31

Lab Breakthrough: X-ray Laser Captures Atoms and Molecules in Action |  

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

X-ray Laser Captures Atoms and Molecules in X-ray Laser Captures Atoms and Molecules in Action Lab Breakthrough: X-ray Laser Captures Atoms and Molecules in Action July 18, 2012 - 12:51pm Addthis The Linac Coherent Light Source at SLAC is the world's most powerful X-ray laser, which helps researchers understand the extreme conditions found in the hearts of stars and giant planets guiding research into nuclear fusion, the mechanism that powers the sun. View the entire Lab Breakthrough playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs How is the LCLS different? Rather than accelerate particles to collide them, it accelerates particles in a special way to create extremely bright bunches of photons. These pulses are about 10 billion times brighter and one thousand

32

First Demonstration of Staged Laser Acceleration  

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

Laser Wakefield Acceleration Driven by a CO 2 Laser (STELLA-LW) W. D. Kimura ATF Users' Meeting Jan. 8, 2004 Work was supported by the U.S. Department of Energy, Grant Nos....

33

Laser guiding for GeV laserplasma accelerators  

Science Journals Connector (OSTI)

...plasma-beat-wave accelerator. Phys. Rev...Singhal2003Applications for nuclear phenomena generated...laser wakefield accelerators. Phys. Plasmas...crossing a plasma-vacuum boundary. Phys...laser wakefield accelerators. Phys. Plasmas...generated at a plasma-vacuum interface. Phys...

2006-01-01T23:59:59.000Z

34

Jefferson Lab's upgraded Free-Electron Laser produces first ligh...  

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

upgraded Free-Electron Laser produces first light June 18, 2003 Researchers at the U.S. Department of Energy's Thomas Jefferson National Accelerator Facility have produced first...

35

Modeling Laser Wakefield Accelerators in a Lorentz Boosted Frame  

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

Modeling Laser Wakefield Accelerators in a Lorentz Boosted Frame Modeling Laser Wakefield Accelerators in a Lorentz Boosted Frame VayBoost.gif An image showing the "boosted frame,"...

36

Space Charge Compensation in Laser Particle Accelerators L.C...  

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

Compensation in Laser Particle Accelerators L.C. Steinhauer and W.D. Kimura STI Optronics, 2755 Northup Way, Bellevue, WA 98004-1495 Abstract. Laser particle acceleration...

37

Electron Beam Charge Diagnostics for Laser Plasma Accelerators  

E-Print Network (OSTI)

the 1989 Particle Accelerator Conference (IEEE, Piscataway,the 1993 Particle Accelerator Conference (IEEE, Piscataway,Diagnostics for Laser Plasma Accelerators K. Nakamura, 1 A.

Nakamura, Kei

2012-01-01T23:59:59.000Z

38

Laser Plasma Particle Accelerators: Large Fields for Smaller Facility Sources  

E-Print Network (OSTI)

essential understanding of accelerator physics to advanceof high- gradient, laser plasma particle accelerators.to conventional particle accelerators, plasmas can sustain

Geddes, Cameron G.R.

2010-01-01T23:59:59.000Z

39

LASER-PLASMA-ACCELERATOR-BASED COLLIDERS C. B. Schroeder  

E-Print Network (OSTI)

LASER-PLASMA-ACCELERATOR-BASED COLLIDERS C. B. Schroeder , E. Esarey, Cs. T´oth, C. G. R. Geddes-generation linear col- lider based on laser-plasma-accelerators are discussed, and a laser-plasma-accelerator gamma-gamma () collider is considered. An example of the parameters for a 0.5 TeV laser-plasma-accelerator collider

Geddes, Cameron Guy Robinson

40

Microwave accelerator E-beam pumped laser  

DOE Patents (OSTI)

A device and method for pumping gaseous lasers by means of a microwave accelerator. The microwave accelerator produces a relativistic electron beam which is applied along the longitudinal axis of the laser through an electron beam window. The incident points of the electron beam on the electron beam window are varied by deflection coils to enhance the cooling characteristics of the foil. A thyratron is used to reliably modulate the microwave accelerator to produce electron beam pulses which excite the laser medium to produce laser pulse repetition frequencies not previously obtainable. An aerodynamic window is also disclosed which eliminates foil heating problems, as well as a magnetic bottle for reducing laser cavity length and pressures while maintaining efficient energy deposition.

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

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lab laser accelerator" 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

Photonic laser-driven accelerator for GALAXIE  

SciTech Connect

We report on the design and development of an all-dielectric laser-driven accelerator to be used in the GALAXIE (GV-per-meter Acce Lerator And X-ray-source Integrated Experiment) project's compact free-electron laser. The approach of our working design is to construct eigenmodes, borrowing from the field of photonics, which yield the appropriate, highly demanding dynamics in a high-field, short wavelength accelerator. Topics discussed include transverse focusing, power coupling, bunching, and fabrication.

Naranjo, B.; Ho, M.; Hoang, P.; Putterman, S.; Valloni, A.; Rosenzweig, J. B. [UCLA Dept. of Physics and Astronomy Los Angeles, CA 90095-1547 (United States)

2012-12-21T23:59:59.000Z

42

Laser turns 50 (Inside Business) | Jefferson Lab  

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

https:www.jlab.orgnewsarticleslaser-turns-50-inside-business Laser turns 50 Not yet beaming us up, lasers have still come a long way, Scotty By Michael Schwartz, Inside...

43

Ion Acceleration by Short Chirped Laser Pulses  

E-Print Network (OSTI)

Direct laser acceleration of ions by short frequency-chirped laser pulses is investigated theoretically. We demonstrate that intense beams of ions with a kinetic energy broadening of about 1 % can be generated. The chirping of the laser pulse allows the particles to gain kinetic energies of hundreds of MeVs, which is required for hadron cancer therapy, from pulses of energies of the order of 100 J. It is shown that few-cycle chirped pulses can accelerate ions more efficiently than long ones, i.e. higher ion kinetic energies are reached with the same amount of total electromagnetic pulse energy.

Li, Jian-Xing; Keitel, Christoph H; Harman, Zoltn

2015-01-01T23:59:59.000Z

44

Laser diagnostics | Princeton Plasma Physics Lab  

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

the Lawrence Livermore National Laboratory with the goal of igniting a propagating thermonuclear burn wave in DT fuel leading to energy gain (defined as fusion yieldinput laser...

45

Energy Department Announces New Lab Program to Accelerate Commercializ...  

Office of Environmental Management (EM)

DOE's National Laboratories into the commercial marketplace. Lab-Corps aims to better train and empower national lab researchers to successfully transition their discoveries into...

46

Tapered plasma channels to phase-lock accelerating and focusing forces in laser-plasma accelerators  

E-Print Network (OSTI)

elds in laser plasma accelerators using higher order modes,collider, in Advanced Accelerator Concepts, edited by C. B.forces in laser-plasma accelerators W. Rittershofer, 1, a)

Rittershofer, W.

2010-01-01T23:59:59.000Z

47

Staging Laser Plasma Accelerators for Increased Beam Energy  

E-Print Network (OSTI)

Staging Laser Plasma Accelerators for Increased Beam Energy D. Panasenko, A. J. Shu, C. B., Berkeley, California 94720, USA Abstract. Staging laser plasma accelerators is an efficient way of mitigating laser pump depletion in laser driven accelerators and necessary for reaching high energies

Geddes, Cameron Guy Robinson

48

DEVELOPMENT OF WATER JET PLASMA MIRROR FOR STAGING OF LASER PLASMA ACCELERATORS  

E-Print Network (OSTI)

STAGING OF LASER PLASMA ACCELERATORS ? Dmitriy Panasenko,Staging Laser Plasma Accelerators (LPAs) is necessary in4]. INTRODUCTION Laser Plasma Accelerators (LPAs) have now

Panasenko, Dmitriy

2010-01-01T23:59:59.000Z

49

Development of high gradient laser wakefield accelerators towards nuclear detection applications at LBNL  

E-Print Network (OSTI)

laser wakefield accelerators towards nuclear detectionRecent laser wakefield accelerator experiments at LBNLscaling of laser driven accelerators to GeV energies. Stable

Geddes, Cameron GR

2010-01-01T23:59:59.000Z

50

Polarization measurement of laser-accelerated protons  

SciTech Connect

We report on the successful use of a laser-driven few-MeV proton source to measure the differential cross section of a hadronic scattering reaction as well as on the measurement and simulation study of polarization observables of the laser-accelerated charged particle beams. These investigations were carried out with thin foil targets, illuminated by 100 TW laser pulses at the Arcturus laser facility; the polarization measurement is based on the spin dependence of hadronic proton scattering off nuclei in a Silicon target. We find proton beam polarizations consistent with zero magnitude which indicates that for these particular laser-target parameters the particle spins are not aligned by the strong magnetic fields inside the laser-generated plasmas.

Raab, Natascha; Engels, Ralf; Engin, Ilhan; Greven, Patrick; Holler, Astrid; Lehrach, Andreas; Maier, Rudolf [Institut fr Kernphysik and Jlich Center for Hadron Physics, Forschungszentrum Jlich, 52425 Jlich (Germany)] [Institut fr Kernphysik and Jlich Center for Hadron Physics, Forschungszentrum Jlich, 52425 Jlich (Germany); Bscher, Markus, E-mail: m.buescher@fz-juelich.de [Institut fr Kernphysik and Jlich Center for Hadron Physics, Forschungszentrum Jlich, 52425 Jlich (Germany) [Institut fr Kernphysik and Jlich Center for Hadron Physics, Forschungszentrum Jlich, 52425 Jlich (Germany); Peter Grnberg Institut (PGI-6), Forschungszentrum Jlich, 52425 Jlich (Germany); Institute for Laser- and Plasma Physics, Heinrich-Heine Universitt Dsseldorf, Universittsstr. 1, 40225 Dsseldorf (Germany); Cerchez, Mirela; Swantusch, Marco; Toncian, Monika; Toncian, Toma; Willi, Oswald [Institute for Laser- and Plasma Physics, Heinrich-Heine Universitt Dsseldorf, Universittsstr. 1, 40225 Dsseldorf (Germany)] [Institute for Laser- and Plasma Physics, Heinrich-Heine Universitt Dsseldorf, Universittsstr. 1, 40225 Dsseldorf (Germany); Gibbon, Paul; Karmakar, Anupam [Institute for Advanced Simulation, Jlich Supercomputing Centre, Forschungszentrum Jlich, 52425 Jlich (Germany)] [Institute for Advanced Simulation, Jlich Supercomputing Centre, Forschungszentrum Jlich, 52425 Jlich (Germany)

2014-02-15T23:59:59.000Z

51

Princeton Plasma Physics Lab - Laser diagnostics  

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

laser-diagnostics The Multi-Point laser-diagnostics The Multi-Point Thomson Scattering (MPTS) diagnostic system has been providing time dependent Te and ne profile measurements on NSTX for ten years. en Premiere issue of "Quest" magazine details PPPL's strides toward fusion energy and advances in plasma science http://www.pppl.gov/news/2013/09/premiere-issue-quest-magazine-details-pppls-strides-toward-fusion-energy-and-advances-0

52

Labs at-a-Glance: Fermi National Accelerator Laboratory | U.S. DOE Office  

Office of Science (SC) Website

Fermi National Fermi National Accelerator Laboratory Laboratories Ames Laboratory Argonne National Laboratory Brookhaven National Laboratory Fermi National Accelerator Laboratory Lawrence Berkeley National Laboratory Oak Ridge National Laboratory Pacific Northwest National Laboratory Princeton Plasma Physics Laboratory SLAC National Accelerator Laboratory Thomas Jefferson National Accelerator Facility Laboratory Policy and Evaluation Safety, Security and Infrastructure Laboratory Science Highlights Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 Labs at-a-Glance: Fermi National Accelerator Laboratory Print Text Size: A A A RSS Feeds FeedbackShare Page Fermi National Accelerator Laboratory Logo Visit the Fermi National Accelerator

53

Labs at-a-Glance: SLAC National Accelerator Laboratory | U.S. DOE Office of  

Office of Science (SC) Website

SLAC National SLAC National Accelerator Laboratory Laboratories Ames Laboratory Argonne National Laboratory Brookhaven National Laboratory Fermi National Accelerator Laboratory Lawrence Berkeley National Laboratory Oak Ridge National Laboratory Pacific Northwest National Laboratory Princeton Plasma Physics Laboratory SLAC National Accelerator Laboratory Thomas Jefferson National Accelerator Facility Laboratory Policy and Evaluation Safety, Security and Infrastructure Laboratory Science Highlights Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 Labs at-a-Glance: SLAC National Accelerator Laboratory Print Text Size: A A A RSS Feeds FeedbackShare Page SLAC National Accelerator Laboratory Logo Visit the SLAC National Accelerator

54

Acceleration-field calculation for a structure-based laser-driven linear accelerator  

E-Print Network (OSTI)

Acceleration-field calculation for a structure-based laser-driven linear accelerator Y. C. Huanga for publication 16 April 1998 A laser-driven particle accelerator, scaled to optical wavelengths, has a feature size many orders of magnitude smaller than a radio-frequency accelerator. However, similar to a radio

Byer, Robert L.

55

Labs at-a-Glance: Thomas Jefferson National Accelerator Facility | U.S. DOE  

Office of Science (SC) Website

Thomas Jefferson Thomas Jefferson National Accelerator Facility Laboratories Ames Laboratory Argonne National Laboratory Brookhaven National Laboratory Fermi National Accelerator Laboratory Lawrence Berkeley National Laboratory Oak Ridge National Laboratory Pacific Northwest National Laboratory Princeton Plasma Physics Laboratory SLAC National Accelerator Laboratory Thomas Jefferson National Accelerator Facility Laboratory Policy and Evaluation Safety, Security and Infrastructure Laboratory Science Highlights Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 Labs at-a-Glance: Thomas Jefferson National Accelerator Facility Print Text Size: A A A RSS Feeds FeedbackShare Page Thomas Jefferson National Accelerator Facility Logo

56

Physics of Laser-driven plasma-based acceleration  

SciTech Connect

The physics of plasma-based accelerators driven by short-pulse lasers is reviewed. This includes the laser wake-field accelerator, the plasma beat wave accelerator, the self-modulated laser wake-field accelerator, and plasma waves driven by multiple laser pulses. The properties of linear and nonlinear plasma waves are discussed, as well as electron acceleration in plasma waves. Methods for injecting and trapping plasma electrons in plasma waves are also discussed. Limits to the electron energy gain are summarized, including laser pulse direction, electron dephasing, laser pulse energy depletion, as well as beam loading limitations. The basic physics of laser pulse evolution in underdense plasmas is also reviewed. This includes the propagation, self-focusing, and guiding of laser pulses in uniform plasmas and plasmas with preformed density channels. Instabilities relevant to intense short-pulse laser-plasma interactions, such as Raman, self-modulation, and hose instabilities, are discussed. Recent experimental results are summarized.

Esarey, Eric; Schroeder, Carl B.

2003-06-30T23:59:59.000Z

57

Laser-Plasma Acceleration of Electrons and Plasma Diagnostics at High Laser Fields  

E-Print Network (OSTI)

would open the prospect of building x-ray free-electron lasers and linear colliders hundreds of timesLaser-Plasma Acceleration of Electrons and Plasma Diagnostics at High Laser Fields Mike Downer: Laser-plasma acceleration is now entering an era of petawatt lasers, tenuous plasmas and multi

Shvets, Gennady

58

Control of Laser Plasma Based Accelerators up to 1 GeV  

E-Print Network (OSTI)

Based Accelerators . . . . . . . . . . . . . . . . . . 11Guided Laser Wake?eld Accelerator . 76 Low Power Guidingusing laser wake?eld accelerators. Phys. Plasmas, 8(5):2510

Nakamura, Kei

2008-01-01T23:59:59.000Z

59

Broadband Single-Shot Electron Spectrometer for GeV-Class Laser Plasma Based Accelerators  

E-Print Network (OSTI)

of the 2007 Particle Accelerator Conference, p. 2978,Class Laser Plasma Based Accelerators K. Nakamura, ? W. Wan,Laser-plasma-based accelerators can provide electrons over a

Nakamura, K.

2008-01-01T23:59:59.000Z

60

Direct laser acceleration of electrons in free-space  

E-Print Network (OSTI)

Compact laser-driven accelerators are versatile and powerful tools of unarguable relevance on societal grounds for the diverse purposes of science, health, security, and technology because they bring enormous practicality to state-of-the-art achievements of conventional radio-frequency accelerators. Current benchmarking laser-based technologies rely on a medium to assist the light-matter interaction, which impose material limitations or strongly inhomogeneous fields. The advent of few cycle ultra-intense radially polarized lasers has materialized an extensively studied novel accelerator that adopts the simplest form of laser acceleration and is unique in requiring no medium to achieve strong longitudinal energy transfer directly from laser to particle. Here we present the first observation of direct longitudinal laser acceleration of non-relativistic electrons that undergo highly-directional multi-GeV/m accelerating gradients. This demonstration opens a new frontier for direct laser-driven particle accelerati...

Carbajo, Sergio; Wong, Liang Jie; Miller, R J Dwayne; Krtner, Franz X

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lab laser accelerator" 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

Summary Report of Working Group 6: Laser-Plasma Acceleration  

SciTech Connect

A summary is given of presentations and discussions in theLaser-Plasma Acceleration Working Group at the 2006 Advanced AcceleratorConcepts Workshop. Presentation highlights include: widespreadobservation of quasi-monoenergetic electrons; good agreement betweenmeasured and simulated beam properties; the first demonstration oflaser-plasma acceleration up to 1 GeV; single-shot visualization of laserwakefield structure; new methods for measuring<100 fs electronbunches; and new methods for "machining" laser-plasma acceleratorstructures. Discussion of future direction includes: developing a roadmapfor laser-plasma acceleration beyond 1 GeV; a debate over injection andguiding; benchmarking simulations with improved wake diagnostics;petawatt laser technology for future laser-plasmaaccelerators.

Leemans, Wim P.; Downer, Michael; Siders, Craig

2006-07-01T23:59:59.000Z

62

Characterisation of electron beams from laser-driven particle accelerators  

SciTech Connect

The development, understanding and application of laser-driven particle accelerators require accurate measurements of the beam properties, in particular emittance, energy spread and bunch length. Here we report measurements and simulations showing that laser wakefield accelerators can produce beams of quality comparable to conventional linear accelerators.

Brunetti, E.; Manahan, G. G.; Shanks, R. P.; Islam, M. R.; Ersfeld, B.; Anania, M. P.; Cipiccia, S.; Issac, R. C.; Vieux, G.; Welsh, G. H.; Wiggins, S. M.; Jaroszynski, D. A. [Physics Department, University of Strathclyde, Glasgow G4 0NG (United Kingdom)

2012-12-21T23:59:59.000Z

63

Laser induced electron acceleration in vacuum K. P. Singha)  

E-Print Network (OSTI)

Laser induced electron acceleration in vacuum K. P. Singha) Department of Physics, Indian Institute acceleration by a plane polarized laser wave has been studied in vacuum. Relativistic equations of motion have been solved exactly for electron trajectory and energy as a function of laser intensity, phase

Singh, Kunwar Pal

64

LASER ACCELERATION IN VACUUM J.L. Hsu, T. Katsouleas  

E-Print Network (OSTI)

LASER ACCELERATION IN VACUUM J.L. Hsu, T. Katsouleas University of Southern California, Los Angeles electric fields of high-brightness lasers (e.g., up to order TV/cm) to accelerate particles. Unfortunately, as is well known, it is difficult to couple the vacuum field of the laser to particles so as to achieve a net

Wurtele, Jonathan

65

Berkeley Lab A to Z Index: L  

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

LabAlert - LabAlert Emergency Alerting Service LabAlert - LabAlert Emergency Alerting Service Lab Advisory Board Lab Population Table Lab Property Review Lab Wiki Laboratory Counsel Laboratory Directed Research & Development Program (LDRD) Laboratory Research Computing Laboratory Support Services Labor Employee Relations Lactation Accommodation Program Lactation / Nursing Moms Laser Ablation: Advanced Laser Technologies Lab Laser Management System (Laser Inventory) Laser Safety Web Page Lasers, Optical Accelerator Systems Integrated Studies (L'OASIS) Group LaTeX (& TeX) information Lawrence Berkeley National Laboratory 75th Anniversary Website LBLnet Service at LBL (Ethernet, IP, VPN, etc.) LBNL Corrective Action Tracking System (CATS) LBNL Incident Notification/Contact x6999 LBNL Merchandise, Food and Drink for Sale 24/7 at the Guest House

66

Oak Ridge 25URC Tandem Accelerator 2007 SNEAP Lab Report  

SciTech Connect

During FY 2008, the 25URC operated for slightly over 3,000 research hours. The radioactive species 80Ge and 17,18F accounted for 763 of these hours. This included an experiment using 17F which was only possible due to an improvement of a factor of 50 in beam intensity over our previous facility record. Twenty stable beam species were provided this year. Operation for the experimental program was at terminal potentials from 2.02 to 23.8 MV. Approximately 200 hours of conditioning were done to return the machine to operation after tank openings. There were six tank openings during the year: three scheduled for general maintenance and three unscheduled. Two of the unscheduled openings were required to correct shorting rod issues and the other was to reestablish communication with one of the major dead sections. On July 28, an event happened that caused all accelerators at the Holifield Radioactive Ion Beam Facility (HRIBF) to suspend operation. At approximately 8 AM on that Monday, during operations with approximately 12 {micro}A of 50-MeV protons on a uranium carbide target, delivering neutron-rich 81Zn beam to the new Low-energy Radioactive Ion Beam Spectroscopy Station (LeRIBSS), a radiological control technician (RCT) reported higher than normal radiation levels just outside the shield door to the IRIS1 vault (the room in which RIBs are produced at HRIBF). The measured dose rate equivalent was 4 mrem/hr. The presence of radiological contamination on the floor just outside the shield door was subsequently noted, as was the possible presence of airborne radioactivity. These observations were reported to facility management. Accelerators were put in standby immediately and the building evacuated. The event was declared a laboratory operational emergency. Parts of the building were cleared for reentry to collect belongings on Monday afternoon. The entire building was cleared for reoccupation on Tuesday morning after a detailed radiological survey found no contamination outside the shielded vaults. No decontamination was required. No individual received any detectable radiological dose as a result of this event. The 25URC tandem accelerator was given permission to resume operation with stable beams in early September, but radioactive ion production is still not allowed. Subsequent analysis indicated a release that consisted entirely of noble gasses (Xe and Kr isotopes). We believe we have identified two unrelated failures, one associated with the HVAC system and the other with the roughing system exhaust which accounts for both the escape of noble gasses into the IRIS1 vault and their migration outside the vault. An investigation team report is expected by October 24. At that time, corrective actions will be determined and the path to future radioactive ion beam production will be known. The break from operations allowed a few upgrades to be implemented. The most notable was the installation and commissioning of a SNICS ion source purchased from National Electrostatics Corporation (NEC). The SNICS replaced the old Alton/Aarhus source that we have used for many years. An ANU style gas cathode holder was purchased also but has not yet been implemented. The first beams have been produced by the source and the biggest problem encountered was reducing the beam for very low current experiments. A new power supply for the injection magnet was installed during this period also. Radioactive ion beam (RIB) development at the High Power Target Laboratory (HPTL) has been delayed this year while installing the platforms, conduits and equipment for the second Injector for Radioactive Ion Species (IRIS2) which is co-located with the HPTL facility. The majority of development activities have been performed at the two off-line ion source test facilities (ISTF1 and ISTF2) and the On-Line Test Facility (OLTF). Both test facilities have been developing systems which will eventually be used with IRIS2. Two new tunable Ti:Sapphire lasers have been ordered for continuing development of an ion source based on laser ionization using all solid-state

Meigs, Martha J [ORNL; Juras, Raymond C [ORNL

2008-01-01T23:59:59.000Z

67

Chirped pulse inverse free-electron laser vacuum accelerator  

DOE Patents (OSTI)

A chirped pulse inverse free-electron laser (IFEL) vacuum accelerator for high gradient laser acceleration in vacuum. By the use of an ultrashort (femtosecond), ultrahigh intensity chirped laser pulse both the IFEL interaction bandwidth and accelerating gradient are increased, thus yielding large gains in a compact system. In addition, the IFEL resonance condition can be maintained throughout the interaction region by using a chirped drive laser wave. In addition, diffraction can be alleviated by taking advantage of the laser optical bandwidth with negative dispersion focusing optics to produce a chromatic line focus. The combination of these features results in a compact, efficient vacuum laser accelerator which finds many applications including high energy physics, compact table-top laser accelerator for medical imaging and therapy, material science, and basic physics.

Hartemann, Frederic V. (Dublin, CA); Baldis, Hector A. (Pleasanton, CA); Landahl, Eric C. (Walnut Creek, CA)

2002-01-01T23:59:59.000Z

68

Boston University User Fee Structure for ICP-ES, ICP-MS and Laser Labs  

E-Print Network (OSTI)

Boston University User Fee Structure for ICP-ES, ICP-MS and Laser Labs The Department of Earth for digestions protocols include flux fusions, microwave digestions, and open vial digestions. Standardization come to BU and digest their samples in our labs with sufficient training. Laser-ICP-MS cost per sample

Hutyra, Lucy R.

69

PARAMETER OPTIMIZATIONS FOR VACUUM LASER ACCELERATION AT ATF...  

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

PARAMETER OPTIMIZATIONS FOR VACUUM LASER ACCELERATION AT ATFBNL * V. Yakimenko , M. Babzien, I. Ben-Zvi, K. Kusche, I. Pogorelsky, X. Wang Brookhaven National Laboratory ,...

70

Summary Report of Working Group 6: Laser-Plasma Acceleration  

E-Print Network (OSTI)

be an important focus of laser-plasma acceleration researchfocus. In both cases, light regions of the image ionized and heated the plasma,

Leemans, Wim P.; Downer, Michael; Siders, Craig

2008-01-01T23:59:59.000Z

71

Laser-driven plasma-based accelerators: Wakefield excitation, channel guiding, and laser triggered particle injection*  

E-Print Network (OSTI)

Laser-driven plasma-based accelerators: Wakefield excitation, channel guiding, and laser triggered; accepted 18 February 1998 Plasma-based accelerators are discussed in which high-power short pulse lasers are the power source, suitably tailored plasma structures provide guiding of the laser beam and support large

Wurtele, Jonathan

72

Laser-Accelerated Protons with Energy-Dependent Beam Direction  

Science Journals Connector (OSTI)

The spatial distribution of protons, accelerated by intense femtosecond laser pulses interacting with thin target foils under oblique irradiation are investigated. Under certain conditions, the proton beams are directed away from the target normal. This deviation is towards the laser forward direction, with an angle that increases with the level and duration of the amplified spontaneous emission pedestal before the main laser pulse. In addition, for a given laser pulse, this beam deviation increases with proton energy. The observations are discussed in terms of different electron acceleration mechanisms and target normal sheath acceleration, in combination with a laser-controllable shock wave locally deforming the target rear surface.

F. Lindau; O. Lundh; A. Persson; P. McKenna; K. Osvay; D. Batani; C.-G. Wahlstrm

2005-10-19T23:59:59.000Z

73

Accelerator Research Department BAccelerator Research Department B E163: Laser Acceleration  

E-Print Network (OSTI)

1 Accelerator Research Department BAccelerator Research Department B E163: Laser Acceleration, D. R. Walz Stanford Linear Accelerator Center R. L. Byer, T. Plettner Stanford University * Spokesman. #12;2 Accelerator Research Department B Outline · Introduction ­­ Future requirements for high

Wechsler, Risa H.

74

Jefferson Lab: Laser gun to eventually shoot down missiles (Daily...  

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

articles.dailypress.com2011-02-21newsdp-nws-jefferson-lab-201102211jefferson-lab-researchers-free-electron-l... Submitted: Monday, February 21, 2011...

75

Silicon buried gratings for dielectric laser electron accelerators  

SciTech Connect

This paper describes design and simulations of dielectric laser electron accelerators that achieve Gigavolt-per-meter (GV/m) accelerating gradients and wide electron channels (>1??m). The accelerator design is based on a silicon buried grating structure that enables flexible phase synchronization, large electron channel fields, and low standing-wave ratio in the material. This design increases the accelerating gradients to more than double those of reported quartz grating accelerators, thereby reducing the input laser fluence by 60% for the same accelerating gradient. With a 100 fs pulsed laser, our silicon buried gratings can achieve a maximum gradient of 1.1 GV/m, indicating that these accelerators have potential for numerous electron-accelerator applications.

Chang, Chia-Ming, E-mail: cachang@alumni.stanford.edu [Bell Labs, Alcatel-Lucent, 791 Holmdel Road, Holmdel, New Jersey 07733 (United States); Solgaard, Olav [E. L. Ginzton Lab., Stanford University, Stanford, California 94305 (United States)

2014-05-05T23:59:59.000Z

76

Radiation protection issues for laser-based accelerators  

Science Journals Connector (OSTI)

......of the laser-based accelerator. THE FLAME PROJECT...high brightness LINAC accelerator of the LNF-Sparc project...aim of an efficient accelerator shielding design is...charged particles, ions, nuclear fragments and delayed...a thin walls of the vacuum chamber at a small angle......

Adolfo Esposito

2011-07-01T23:59:59.000Z

77

Recent News from the National Labs | Department of Energy  

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

15, 2012 15, 2012 SLAC's linac accelerates very short pulses of electrons to 99.9999999 percent the speed of light through a slalom that causes the electrons to emit X-rays, which become synchronized as they interact with the electron pulses and create the world's brightest X-ray laser pulse. | Photo by Brad Plummer, SLAC. #LabChat: Particle Accelerators, Lasers and Discovery Science, May 17 at 1pm EST #LabChat kicks off May 17, 1 p.m. EST with atom smashers and laser scientists from Fermi National Accelerator Lab, Thomas Jefferson National Accelerator Lab, and SLAC National Accelerator Lab. May 14, 2012 Lab Breakthrough: Fermilab Accelerator Technology Fermilab scientists developed techniques to retrofit some of the 30,000 particle accelerators in use around the world to make them more efficient

78

Modeling Laser Wakefield Accelerators in a Lorentz Boosted Frame  

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

Modeling Laser Modeling Laser Wakefield Accelerators in a Lorentz Boosted Frame Modeling Laser Wakefield Accelerators in a Lorentz Boosted Frame VayBoost.gif An image showing the "boosted frame," in which the observer moves at near light speed. The laser pulse is represented in blue and red; the wakefields are colored pale blue and yellow. In this frame, the plasma (yellow box) has contracted and the wavefronts are fewer and farther apart, resulting in far fewer calculations and faster results. Why it Matters: Laser driven plasma waves can produce accelerating gradients orders of magnitude greater than standard accelerating structures. High quality electron beams of energy up to 1 GeV have been produced in just a few centimeters and 10-GeV stages being planned as

79

Jefferson Lab Science Series - Proton Therapy - Accelerating Protons to  

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

The Science of Chocolate The Science of Chocolate Previous Video (The Science of Chocolate) Science Series Video Archive Next Video (Adventures in Infectious Diseases) Adventures in Infectious Diseases Proton Therapy - Accelerating Protons to Save Lives Dr. Cynthia Keppel - Hampton University Proton Therapy Institute October 25, 2011 In 1946, physicist Robert Wilson first suggested that protons could be used as a form of radiation therapy in the treatment of cancer because of the sharp drop-off that occurs on the distal edge of the radiation dose. Research soon confirmed that high-energy protons were particularly suitable for treating tumors near critical structures, such as the heart and spinal column. The precision with which protons can be delivered means that more radiation can be deposited into the tumor while the surrounding healthy

80

Design Considerations for Plasma Accelerators Driven by Lasers or Particle Beams  

E-Print Network (OSTI)

collider," in Advanced Accelerator Concepts, edited by C .Considerations for Plasma Accelerators Driven by Lasers orUSA Abstract. Plasma accelerators may be driven by the

Schroeder, C. B.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lab laser accelerator" 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

Free-Electron Laser Targets Fat | Jefferson Lab  

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

Free-Electron Laser Targets Fat April 10, 2006 Free-Electron Laser Scientists Rox Anderson, right, and Free-Electron Laser Scientist Steve Benson, left, discuss laser beam...

82

A multi-beam, multi-terawatt Ti:sapphire laser system for laser wake-field acceleration studies  

E-Print Network (OSTI)

­plasma interaction studies, such as development of laser wake-field accelerators [1-4], X-ray lasers, and laserA multi-beam, multi-terawatt Ti:sapphire laser system for laser wake-field acceleration studies 71R0259, 1 Cyclotron Rd., Berkeley, CA 94720, USA, e-mail: ctoth@lbl.gov Abstract. The Lasers

Geddes, Cameron Guy Robinson

83

STELLA-II Experiment Update on Monoenergetic Laser Acceleration  

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

STELLA-II Experiment Update on Monoenergetic Laser Acceleration ATF Users' Meeting Jan. 31, 2002 Karl P. Kusche Work was supported by the U.S. Department of Energy, Grant Nos....

84

Lab  

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

Flexible hydropower: boosting energy January 30, 2014 New hydroelectric resource for Northern New Mexico supplies clean energy to homes, businesses and the Lab We know a lot of...

85

Laser and Particle Guiding Micro-Elements for Particle Accelerators  

SciTech Connect

Laser driven particle accelerators require sub-micron control of the laser field as well as precise electron-beam guiding so fabrication techniques that allow integrating both elements into an accelerator-on-chip format become critical for the success of such next generation machines. Micromachining technology for silicon has been shown to be one such feasible technology in PAC2003[1] but with a variety of complications on the laser side. However, fabrication of transparent ceramics has become an interesting technology that could be applied for laser-particle accelerators in several ways. We discuss the advantages such as the range of materials available and ways to implement them followed by some different test examples we been considered. One important goal is an integrated system that avoids having to inject either laser or particle pulses into these structures.

Plettner, T.; Gaume, R.; Wisdom, J.; /Stanford U., Phys. Dept.; Spencer, J.; /SLAC

2005-06-07T23:59:59.000Z

86

Jefferson Lab's Free-Electron Laser explores promise of carbon...  

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

Webs of nanotubes on collector plates Webs of nanotubes form on collector plates during the collaboration's FEL experiment (image not actual size). Jefferson Lab's Free-Electron...

87

Wavefront-sensor-based electron density measurements for laser-plasma accelerators  

E-Print Network (OSTI)

for laser-plasma accelerators G. R. Plateau, ? N. H. Matlis,driven plasma-wake?eld accelerator depends on the plasmaof the laser-plasma accelerator. It is shown that direct

Plateau, Guillaume

2010-01-01T23:59:59.000Z

88

Implementation of DOE NPH Requirements at the Thomas Jefferson National Accelerator Facility (TJNAF), a Non-Nuclear DOE Lab  

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

Implementation of DOE NPH Requirements at the Thomas Jefferson National Accelerator Facility (TJNAF), a Non-Nuclear DOE Lab David Luke, DOE, Thomas Jefferson Site Office Stephen McDuffie, DOE, Office of the Chief of Nuclear Safety

89

Testing General Relativity With Laser Accelerated Electron Beams  

E-Print Network (OSTI)

Electron accelerations of the order of $10^{21} g$ obtained by laser fields open up the possibility of experimentally testing one of the cornerstones of general relativity, the weak equivalence principle, which states that the local effects of a gravitational field are indistinguishable from those sensed by a properly accelerated observer in flat space-time. We illustrate how this can be done by solving the Einstein equations in vacuum and integrating the geodesic equations of motion for a uniformly accelerated particle.

L. . Gergely; T. Harko

2012-07-16T23:59:59.000Z

90

Testing general relativity with laser accelerated electron beams  

SciTech Connect

Electron accelerations of the order of 10{sup 21} g obtained by laser fields open up the possibility of experimentally testing one of the cornerstones of general relativity, the weak equivalence principle, which states that the local effects of a gravitational field are indistinguishable from those sensed by a properly accelerated observer in flat space-time. We illustrate how this can be done by solving the Einstein equations in vacuum and integrating the geodesic equations of motion for a uniformly accelerated particle.

Gergely, L. A.; Harko, T. [Department of Theoretical Physics, University of Szeged, Szeged 6720, Tisza L. krt. 84, Hungary and Department of Experimental Physics, University of Szeged, 6720 Szeged, Dom ter 9 (Hungary); Department of Physics and Center for Theoretical and Computational Physics, University of Hong Kong, Pok Fu Lam Road (Hong Kong)

2012-07-09T23:59:59.000Z

91

Effect of the laser wavefront in a laser-plasma accelerator  

E-Print Network (OSTI)

A high repetition rate electron source was generated by tightly focusing kHz, few-mJ laser pulses into an underdense plasma. This high intensity laser-plasma interaction led to stable electron beams over several hours but with strikingly complex transverse distributions even for good quality laser focal spots. Analysis of the experimental data, along with results of PIC simulations demonstrate the role of the laser wavefront on the acceleration of electrons. Distortions of the laser wavefront cause spatial inhomogeneities in the out-of-focus laser distribution and consequently, the laser pulse drives an inhomogenous transverse wakefield whose focusing/defocusing properties affect the electron distribution. These findings explain the experimental results and suggest the possibility of controlling the electron spatial distribution in laser-plasma accelerators by tailoring the laser wavefront.

Beaurepaire, B; Bocoum, M; Bhle, F; Jullien, A; Rousseau, J-P; Lefrou, T; Douillet, D; Iaquaniello, G; Lopez-Martens, R; Lifschitz, A; Faure, J

2015-01-01T23:59:59.000Z

92

Desired Improvements in Laser-Plasma Accelerators  

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

Wei Gai, John Power What's wrong with far field, or What do nano- lithography and accelerators have in common? r << r >> *Impossibility of linear in electric field...

93

UNITED STATES DEPARTMENT OF ENERGY (DOE) THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (JEFFERSON LAB)  

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

- 2014 JSAT Application Package - 2014 JSAT Application Package Page 1 of 6 UNITED STATES DEPARTMENT OF ENERGY (DOE) THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY (JEFFERSON LAB) JLAB SCIENCE ACTIVITIES FOR TEACHERS (JSAT) ATTENTION ALL 5 th , 6 th AND 8 th GRADE MIDDLE SCHOOL SCIENCE TEACHERS! THIS PROGRAM IS FOR YOU! What is it? JSAT is an after school program for 5 th , 6 th and 8 th grade science teachers designed to build teachers' skills in the physical sciences, funded by the Jefferson Science Associates Initiatives Fund. What will I do? The 2013-2014 program will include interactive activities to enhance physical science instruction at the middle school level and lectures by Jefferson Lab staff on the applications of science. And, yes, teachers WILL receive class sets of some activities!

94

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

E-Print Network (OSTI)

of the plasma target will be the vacuum focus location ofFinal Focus Diagnostic (High Power),' a meter-scale plasma

Leemans, W.P.

2011-01-01T23:59:59.000Z

95

Desired Improvements in Laser-Plasma Accelerators  

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

experiment: one CO2-driven SWABSiC prebunches the beam, the other one diagnoses Laser and Beam Damage: Dielectrics vs. Metals vs. Semiconductors From Du and Byer (1999)....

96

Vacuum electron acceleration by using two variable frequency laser pulses  

SciTech Connect

A method is proposed for producing a relativistic electron bunch in vacuum via direct acceleration by using two frequency-chirped laser pulses. We consider the linearly polarized frequency-chiped Hermit-Gaussian 0, 0 mode lasers with linear chirp in which the local frequency varies linearly in time and space. Electron motion is investigated through a numerical simulation using a three-dimensional particle trajectory code in which the relativistic Newton's equations of motion with corresponding Lorentz force are solved. Two oblique laser pulses with proper chirp parameters and propagation angles are used for the electron acceleration along the z-axis. In this way, an electron initially at rest located at the origin could achieve high energy, ?=319 with the scattering angle of 1.02{sup ?} with respect to the z-axis. Moreover, the acceleration of an electron in different initial positions on each coordinate axis is investigated. It was found that this mechanism has the capability of producing high energy electron microbunches with low scattering angles. The energy gain of an electron initially located at some regions on each axis could be greatly enhanced compared to the single pulse acceleration. Furthermore, the scattering angle will be lowered compared to the acceleration by using laser pulses propagating along the z-axis.

Saberi, H.; Maraghechi, B. [Department of Physics, Amirkabir University of Technology, 15875-4413 Tehran (Iran, Islamic Republic of)] [Department of Physics, Amirkabir University of Technology, 15875-4413 Tehran (Iran, Islamic Republic of)

2013-12-15T23:59:59.000Z

97

Researchers' Hottest New Laser Beams 14.2 kW | Jefferson Lab  

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

Researchers' Hottest New Laser Beams 14.2 kW For more information: Office of Naval Research press release The linear accelerator portion of the FEL. On Thursday, Oct. 26,...

98

Berkeley Lab View -- March 28, 2008  

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

March 28th, 2008 Search the View Archive March 28th, 2008 Search the View Archive State of the Lab: New Initiatives, Construction Daniel Chemla (1940-2008): A Remembrance of His Career The View is Going Green DOE Excellence Award to Foundry Project Team Berkeley Lab View Here Comes BELLA: The BErkeley Lab Laser Acceleration Project Berkeley Lab Science Roundup State of the Lab: New Initiatives, Construction By Lynn Yarris image Photo by Roy Kaltschmidt, CSO Free electron lasers with attosecond capabilities, a high-energy electron accelerator less than a meter in length, the arrival of NERSC-6 and the departure of GELCO-4 were some of the highlights of Berkeley Lab Director Steve Chu's State-of-the-Lab address, which he delivered at the Building 50 Auditorium during the noon hour on March 10, with simulcast to the

99

Investigation of laser-driven proton acceleration using ultra-short, ultra-intense laser pulses  

SciTech Connect

We report optimization of laser-driven proton acceleration, for a range of experimental parameters available from a single ultrafast Ti:sapphire laser system. We have characterized laser-generated protons produced at the rear and front target surfaces of thin solid targets (15 nm to 90 {mu}m thicknesses) irradiated with an ultra-intense laser pulse (up to 10{sup 20} W Dot-Operator cm{sup -2}, pulse duration 30 to 500 fs, and pulse energy 0.1 to 1.8 J). We find an almost symmetric behaviour for protons accelerated from rear and front sides, and a linear scaling of proton energy cut-off with increasing pulse energy. At constant laser intensity, we observe that the proton cut-off energy increases with increasing laser pulse duration, then roughly constant for pulses longer than 300 fs. Finally, we demonstrate that there is an optimum target thickness and pulse duration.

Fourmaux, S.; Gnedyuk, S.; Lassonde, P.; Payeur, S.; Pepin, H.; Kieffer, J. C. [INRS-EMT, Universite du Quebec, 1650 Lionel Boulet, Varennes, Quebec J3X 1S2 (Canada); Buffechoux, S.; Albertazzi, B. [INRS-EMT, Universite du Quebec, 1650 Lionel Boulet, Varennes, Quebec J3X 1S2 (Canada); LULI, UMR 7605, CNRS - CEA - Universite Paris 6 - Ecole Polytechnique, 91128 Palaiseau (France); Capelli, D.; Antici, P. [LULI, UMR 7605, CNRS - CEA - Universite Paris 6 - Ecole Polytechnique, 91128 Palaiseau (France); Dipartimento SBAI, Sapienza, Universita di Roma, Via Scarpa 16, 00161 Roma (Italy); Levy, A.; Fuchs, J. [LULI, UMR 7605, CNRS - CEA - Universite Paris 6 - Ecole Polytechnique, 91128 Palaiseau (France); Lecherbourg, L.; Marjoribanks, R. S. [Department of Physics and Institute for Optical Sciences, University of Toronto, Toronto, Ontario M5S 1A7 (Canada)

2013-01-15T23:59:59.000Z

100

Selective Deuterium Ion Acceleration Using the Vulcan PW Laser  

E-Print Network (OSTI)

We report on the successful demonstration of selective acceleration of deuterium ions by target-normal sheath acceleration (TNSA) with a high-energy petawatt laser. TNSA typically produces a multi-species ion beam that originates from the intrinsic hydrocarbon and water vapor contaminants on the target surface. Using the method first developed by Morrison, et al., \\cite{Morrison:POP2012} an ion beam with $>$99$\\%$ deuterium ions and peak energy 28 MeV is produced with a 200 J, 700fs, $>10^{20} W/cm^{2}$ laser pulse by cryogenically freezing heavy water (D$_{2}$O) vapor onto the rear surface of the target prior to the shot. The estimated total yield of deuterium ions in an assumed 10$^{\\circ}$ half-angle cone was 3.0 $\\mu$C (1.9 $\\times 10^{13}$ ions) with 6.6$\\%$ laser-to-deuterium ion energy conversion efficiency.

Krygier, AG; Kar, S; Ahmed, H; Alejo, A; Clarke, R; Fuchs, J; Green, A; Jung, D; Kleinschmidt, A; Najmudin, Z; Nakamura, H; Norreys, P; Notley, M; Oliver, M; Roth, M; Vassura, L; Zepf, M; Borghesi, M; Freeman, RR

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lab laser accelerator" 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

Inverse free electron laser accelerator for advanced light sources  

We discuss the inverse free electron laser (IFEL) scheme as a compact high gradient accelerator solution for driving advanced light sources such as a soft x-ray free electron laser amplifier or an inverse Compton scattering based gamma-ray source. In particular, we present a series of new developments aimed at improving the design of future IFEL accelerators. These include a new procedure to optimize the choice of the undulator tapering, a new concept for prebunching which greatly improves the fraction of trapped particles and the final energy spread, and a self-consistent study of beam loading effects which leads to an energy-efficient high laser-to-beam power conversion.

Duris, J. P.; Musumeci, P.; Li, R. K.

2012-06-01T23:59:59.000Z

102

Four Crazy Uses for Lasers in the National Labs | Department...  

Office of Environmental Management (EM)

also be one (as in death rays). Probably made most popular by the crew at Saturday Night Light, I'm here to confirm that technology to convert your average feline into a "Laser...

103

CONSTRAINTS ON LASER-DRIVEN ACCELERATORS FOR A HIGH-ENERGY LINEAR COLLIDER*  

E-Print Network (OSTI)

CONSTRAINTS ON LASER-DRIVEN ACCELERATORS FOR A HIGH-ENERGY LINEAR COLLIDER* J.S. Wurtele and AV on 1 TeV) are applied to free-space laser and laser/plasma accelerators. It is shown that the requirements impose very severe constraints upon the new accelerators-- so severe, that it seems unlikely

Wurtele, Jonathan

104

Design Considerations for Plasma Accelerators Driven by Lasers or Particle Beams  

E-Print Network (OSTI)

Design Considerations for Plasma Accelerators Driven by Lasers or Particle Beams C. B. Schroeder, E of an intense laser or the space-charge force of a charged particle beam. The implications for accelerator design and the different physical mechanisms of laser-driven and beam-driven plasma acceleration

Geddes, Cameron Guy Robinson

105

Laser safety information for the Atomic, Molecular and Optical (AMO) Physics Labs at Lehigh University modified from the laser safety program developed by the office of Environmental  

E-Print Network (OSTI)

1 Laser safety information for the Atomic, Molecular and Optical (AMO) Physics Labs at Lehigh University modified from the laser safety program developed by the office of Environmental Health and Safety using the following reference materials: I. American National Standards for Safe Use of Lasers - ANSI Z

Huennekens, John

106

Advances in laser driven accelerator R&D  

SciTech Connect

Current activities (last few years) at different laboratories, towards the development of a laser wakefield accelerator (LWFA) are reviewed, followed by a more in depth discussion of results obtained at the L'OASIS laboratory of LBNL. Recent results on laser guiding of relativistically intense beams in preformed plasma channels are discussed. The observation of mono-energetic beams in the 100 MeV energy range, produced by a channel guided LWFA at LBNL, is described and compared to results obtained in the unguided case at LOA, RAL and LBNL. Analysis, aided by particle-in-cell simulations, as well as experiments with various plasma lengths and densities, indicate that tailoring the length of the accelerator has a very beneficial impact on the electron energy distribution. Progress on laser triggered injection is reviewed. Results are presented on measurements of bunch duration and emittance of the accelerated electron beams, that indicate the possibility of generating femtosecond duration electron bunches. Future challenges and plans towards the development of a 1 GeV LWFA module are discussed.

Leemans, Wim

2004-08-23T23:59:59.000Z

107

Improved ion acceleration via laser surface plasma waves excitation  

SciTech Connect

The possibility of enhancing the emission of the ions accelerated in the interaction of a high intensity ultra-short (<100 fs) laser pulse with a thin target (<10?{sub 0}), via surface plasma wave excitation is investigated. Two-dimensional particle-in-cell simulations are performed for laser intensities ranging from 10{sup 19} to 10{sup 20} Wcm{sup ?2}?m{sup 2}. The surface wave is resonantly excited by the laser via the coupling with a modulation at the target surface. In the cases where the surface wave is excited, we find an enhancement of the maximum ion energy of a factor ?2 compared to the cases where the target surface is flat.

Bigongiari, A. [CEA/DSM/LSI, CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex (France) [CEA/DSM/LSI, CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex (France); TIPS/LULI, Universit Paris 6, CNRS, CEA, Ecole Polytechnique, 3, rue Galile, 94200 Ivry-sur-Seine (France); Raynaud, M. [CEA/DSM/LSI, CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex (France)] [CEA/DSM/LSI, CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex (France); Riconda, C. [TIPS/LULI, Universit Paris 6, CNRS, CEA, Ecole Polytechnique, 3, rue Galile, 94200 Ivry-sur-Seine (France)] [TIPS/LULI, Universit Paris 6, CNRS, CEA, Ecole Polytechnique, 3, rue Galile, 94200 Ivry-sur-Seine (France); Hron, A. [CPHT, CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex (France)] [CPHT, CNRS, Ecole Polytechnique, 91128 Palaiseau Cedex (France)

2013-05-15T23:59:59.000Z

108

Toward laser ablation Accelerator Mass Spectrometry of actinides  

SciTech Connect

A project to measure neutron capture cross sections of a number of actinides in a reactor environment by Accelerator Mass Spectrometry (AMS) at the ATLAS facility of Argonne National Laboratory is underway. This project will require the precise and accurate measurement of produced actinide isotopes in many (>30) samples irradiated in the Advanced Test Reactor at Idaho National Laboratory with neutron fluxes having different energy distributions. The AMS technique at ATLAS is based on production of highlycharged positive ions in an electron cyclotron resonance (ECR) ion source followed by acceleration in the ATLAS linac and mass-to-charge (m/q) measurement at the focus of the Fragment Mass Analyzer. Laser ablation was selected as the method of feeding the actinide material into the ion source because we expect it will have higher efficiency and lower chamber contamination than either the oven or sputtering techniques, because of a much narrower angular distribution of emitted material. In addition, a new multi-sample holder/changer to allow quick change between samples and a computer-controlled routine allowing fast tuning of the accelerator for different beams, are being developed. An initial test run studying backgrounds, detector response, and accelerator scaling repeatability was conducted in December 2010. The project design, schedule, and results of the initial test run to study backgrounds are discussed.

R. C. Pardo; F. G. Kondev; S. Kondrashev; C. Nair; T. Palchan; R. Scott; D. Seweryniak; R. Vondrasek; M. Paul; P. Collon; C. Deibel; M. Salvatores; G. Palmiotti; J. Berg; J. Fonnesbeck; G. Imel

2013-01-01T23:59:59.000Z

109

UNDULATOR-BASED LASER WAKEFIELD ACCELERATOR ELECTRON BEAM DIAGNOSTIC  

SciTech Connect

to couple the THUNDER undulator to the LOASIS Lawrence Berkeley National Laboratory (LBNL) laser wakefield accelerator (LWFA). Currently the LWFA has achieved quasi-monoenergetic electron beams with energies up to 1 GeV. These ultra-short, high-peak-current, electron beams are ideal for driving a compact XUV free electron laser (FEL). Understanding the electron beam properties such as the energy spread and emittance is critical for achieving high quality light sources with high brightness. By using an insertion device such as an undulator and observing changes in the spontaneous emission spectrum, the electron beam energy spread and emittance can be measured with high precision. The initial experiments will use spontaneous emission from 1.5 m of undulator. Later experiments will use up to 5 m of undulator with a goal of a high gain, XUV FEL.

Bakeman, M.S.; Fawley, W.M.; Leemans, W. P.; Nakamura, K.; Robinson, K.E.; Schroeder, C.B.; Toth, C.

2009-05-04T23:59:59.000Z

110

Ion acceleration from laser-driven electrostatic shocks  

SciTech Connect

Multi-dimensional particle-in-cell simulations are used to study the generation of electrostatic shocks in plasma and the reflection of background ions to produce high-quality and high-energy ion beams. Electrostatic shocks are driven by the interaction of two plasmas with different density and/or relative drift velocity. The energy and number of ions reflected by the shock increase with increasing density ratio and relative drift velocity between the two interacting plasmas. It is shown that the interaction of intense lasers with tailored near-critical density plasmas allows for the efficient heating of the plasma electrons and steepening of the plasma profile at the critical density interface, leading to the generation of high-velocity shock structures and high-energy ion beams. Our results indicate that high-quality 200 MeV shock-accelerated ion beams required for medical applications may be obtained with current laser systems.

Fiuza, F.; Stockem, A.; Boella, E.; Fonseca, R. A.; Silva, L. O. [GoLPInstituto de Plasmas e Fuso NuclearLaboratrio Associado, Instituto Superior Tcnico, 1049-001 Lisbon (Portugal)] [GoLPInstituto de Plasmas e Fuso NuclearLaboratrio Associado, Instituto Superior Tcnico, 1049-001 Lisbon (Portugal); Haberberger, D.; Tochitsky, S.; Mori, W. B.; Joshi, C. [Department of Electrical Engineering, University of California, Los Angeles, California 90095 (United States)] [Department of Electrical Engineering, University of California, Los Angeles, California 90095 (United States)

2013-05-15T23:59:59.000Z

111

Ultrahigh-intensity optical slow-wave structure for direct laser electron acceleration  

E-Print Network (OSTI)

WAVEGUIDE Ultraintense laser­plasma interaction applications in- cluding x-ray lasers, coherentUltrahigh-intensity optical slow-wave structure for direct laser electron acceleration Andrew G of corrugated slow-wave plasma guiding structures with application to quasi- phase-matched direct laser

Milchberg, Howard

112

Physics of laser-driven plasma-based electron accelerators E. Esarey, C. B. Schroeder, and W. P. Leemans  

E-Print Network (OSTI)

Physics of laser-driven plasma-based electron accelerators E. Esarey, C. B. Schroeder, and W. P Laser-driven plasma-based accelerators, which are capable of supporting fields in excess of 100 GV/m, are reviewed. This includes the laser wakefield accelerator, the plasma beat wave accelerator, the self

Geddes, Cameron Guy Robinson

113

Theory of ionization-induced trapping in laser-plasma accelerators M. Chen, E. Esarey,a)  

E-Print Network (OSTI)

Theory of ionization-induced trapping in laser-plasma accelerators M. Chen, E. Esarey,a) C. B) Ionization injection in a laser-plasma accelerator is studied analytically and by multi-dimensional particle acceleration. For a broad laser pulse, ionization injection requires a minimum normalized laser field of a0 ' 1

Geddes, Cameron Guy Robinson

114

Acceleration of electrons using an inverse free electron laser auto- accelerator  

SciTech Connect

We present data from our study of a device known as the inverse free electron laser. First, numerical simulations were performed to optimize the design parameters for an experiment that accelerates electrons in the presence of an undulator by stimulated absorption of radiation. The Columbia free electron laser (FEL) was configured as an auto-accelerator (IFELA) system; high power (MW's) FEL radiation at {approximately}1.65 mm is developed along the first section of an undulator inside a quasi-optical resonator. The electron beam then traverses a second section of undulator where a fraction of the electrons is accelerated by stimulated absorption of the 1.65 mm wavelength power developed in the first undulator section. The second undulator section has very low gain and does not generate power on its own. We have found that as much as 60% of the power generated in the first section can be absorbed in the second section, providing that the initial electron energy is chosen correctly with respect to the parameters chosen for the first and second undulators. An electron momentum spectrometer is used to monitor the distribution of electron energies as the electrons exit the IFELA. We have found; using our experimental parameters, that roughly 10% of the electrons are accelerated to energies as high as 1100 keV, in accordance with predictions from the numerical model. The appearance of high energy electrons is correlated with the abrupt absorption of millimeter power. The autoaccelerator configuration is used because there is no intense source of coherent power at the 1.65 mm design wavelength other than the FEL.

Wernick, I.K.; Marshall, T.C.

1992-07-01T23:59:59.000Z

115

Acceleration of electrons using an inverse free electron laser auto- accelerator  

SciTech Connect

We present data from our study of a device known as the inverse free electron laser. First, numerical simulations were performed to optimize the design parameters for an experiment that accelerates electrons in the presence of an undulator by stimulated absorption of radiation. The Columbia free electron laser (FEL) was configured as an auto-accelerator (IFELA) system; high power (MW`s) FEL radiation at {approximately}1.65 mm is developed along the first section of an undulator inside a quasi-optical resonator. The electron beam then traverses a second section of undulator where a fraction of the electrons is accelerated by stimulated absorption of the 1.65 mm wavelength power developed in the first undulator section. The second undulator section has very low gain and does not generate power on its own. We have found that as much as 60% of the power generated in the first section can be absorbed in the second section, providing that the initial electron energy is chosen correctly with respect to the parameters chosen for the first and second undulators. An electron momentum spectrometer is used to monitor the distribution of electron energies as the electrons exit the IFELA. We have found; using our experimental parameters, that roughly 10% of the electrons are accelerated to energies as high as 1100 keV, in accordance with predictions from the numerical model. The appearance of high energy electrons is correlated with the abrupt absorption of millimeter power. The autoaccelerator configuration is used because there is no intense source of coherent power at the 1.65 mm design wavelength other than the FEL.

Wernick, I.K.; Marshall, T.C.

1992-07-01T23:59:59.000Z

116

Electron acceleration by a self-diverging intense laser pulse K. P. Singh,1,  

E-Print Network (OSTI)

Electron acceleration by a self-diverging intense laser pulse K. P. Singh,1, * D. N. Gupta,1 V. K, India 2 Department of Electronic Science, University of Delhi, New Delhi-110021, India (Received 23 October 2003; published 28 April 2004) Electron acceleration by a laser pulse having a Gaussian radial

Singh, Kunwar Pal

117

Submillimeter-resolution radiography of shielded structures with laser-accelerated electron beams  

E-Print Network (OSTI)

Submillimeter-resolution radiography of shielded structures with laser-accelerated electron beams (Received 24 March 2010; published 14 October 2010) We investigate the use of energetic electron beams beam (with energy >100 MeV) was generated by the process of laser-wakefield acceleration through

Umstadter, Donald

118

Supra-bubble regime for laser acceleration of cold electron beams in tenuous plasma  

E-Print Network (OSTI)

Supra-bubble regime for laser acceleration of cold electron beams in tenuous plasma V. I. Geyko,1 I 2010 Relativistic electrons can be accelerated by an ultraintense laser pulse in the "supra-bubble" regime, that is, in the blow-out regime ahead of the plasma bubble as opposed to the conventional method

119

High-intensity laser-driven proton acceleration: influence of pulse contrast  

Science Journals Connector (OSTI)

...inset of figure 3. CR-39 nuclear track detector, which is...pump down cycle of the target vacuum chamber. The proton stopping...hadrontherapy with laser ion accelerators. Phys. Lett. A. 299...laser virtual-cathode plasma accelerator. Phys. Rev. Lett. 92...

2006-01-01T23:59:59.000Z

120

Fusion reactions initiated by laser-accelerated particle beams in a laser-produced plasma  

E-Print Network (OSTI)

The advent of high-intensity pulsed laser technology enables the generation of extreme states of matter under conditions that are far from thermal equilibrium. This in turn could enable different approaches to generating energy from nuclear fusion. Relaxing the equilibrium requirement could widen the range of isotopes used in fusion fuels permitting cleaner and less hazardous reactions that do not produce high energy neutrons. Here we propose and implement a means to drive fusion reactions between protons and boron-11 nuclei, by colliding a laser-accelerated proton beam with a laser-generated boron plasma. We report proton-boron reaction rates that are orders of magnitude higher than those reported previously. Beyond fusion, our approach demonstrates a new means for exploring low-energy nuclear reactions such as those that occur in astrophysical plasmas and related environments.

Labaune, C; Depierreux, S; Goyon, C; Loisel, G; Yahia, V; Rafelski, J

2013-01-01T23:59:59.000Z

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121

A monolithic relativistic electron beam source based on a dielectric laser accelerator structure  

SciTech Connect

Work towards a monolithic device capable of producing relativistic particle beams within a cubic-centimeter is detailed. We will discuss the Micro-Accelerator Platform (MAP), an optical laser powered dielectric accelerator as the main building block of this chip-scale source along with a field enhanced emitter and a region for sub-relativistic acceleration.

McNeur, Josh; Carranza, Nestor; Travish, Gil; Yin Hairong; Yoder, Rodney [UCLA Dept. of Physics and Astronomy, Los Angeles, CA 90095 (United States); College of Physical Electronics, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054 (China); Manhattanville College, Physics Dept., 2900 Purchase St., Purchase, NY 10577 (United States)

2012-12-21T23:59:59.000Z

122

Effect of polarization and focusing on laser pulse driven auto-resonant particle acceleration  

SciTech Connect

The effect of laser polarization and focusing is theoretically studied on the final energy gain of a particle in the Auto-resonant acceleration scheme using a finite duration laser pulse with Gaussian shaped temporal envelope. The exact expressions for dynamical variables viz. position, momentum, and energy are obtained by analytically solving the relativistic equation of motion describing particle dynamics in the combined field of an elliptically polarized finite duration pulse and homogeneous static axial magnetic field. From the solutions, it is shown that for a given set of laser parameters viz. intensity and pulse length along with static magnetic field, the energy gain by a positively charged particle is maximum for a right circularly polarized laser pulse. Further, a new scheme is proposed for particle acceleration by subjecting it to the combined field of a focused finite duration laser pulse and static axial magnetic field. In this scheme, the particle is initially accelerated by the focused laser field, which drives the non-resonant particle to second stage of acceleration by cyclotron Auto-resonance. The new scheme is found to be efficient over two individual schemes, i.e., auto-resonant acceleration and direct acceleration by focused laser field, as significant particle acceleration can be achieved at one order lesser values of static axial magnetic field and laser intensity.

Sagar, Vikram; Sengupta, Sudip; Kaw, Predhiman [Institute for Plasma Research, Bhat, Gandhinagar-382428 (India)] [Institute for Plasma Research, Bhat, Gandhinagar-382428 (India)

2014-04-15T23:59:59.000Z

123

Spectroscopy of betatron radiation emitted from laser-produced wakefield accelerated electronsa...  

E-Print Network (OSTI)

laser facilities in which the nature divergence and total x-ray flux of the betatron radiation has been is able to discern changes of the betatron emission x-ray spec- trum with differing laser parametersSpectroscopy of betatron radiation emitted from laser-produced wakefield accelerated electronsa

Geddes, Cameron Guy Robinson

124

Unphysical kinetic effects in particle-in-cell modeling of laser wakefield accelerators Estelle Cormier-Michel,1,2  

E-Print Network (OSTI)

Unphysical kinetic effects in particle-in-cell modeling of laser wakefield accelerators Estelle of laser wakefield accelerators using particle-in-cell codes are investigated. A dark current free laser wakefield accelerator stage, in which no trapping of background plasma electrons into the plasma wave should

Geddes, Cameron Guy Robinson

125

Modeling of 10 GeV-1 TeV laser-plasma accelerators using Lorentz boosted simulations  

E-Print Network (OSTI)

Modeling of 10 GeV-1 TeV laser-plasma accelerators using Lorentz boosted simulations J.-L. Vay,1,a-plasma wakefield accelerators in an optimal frame of reference [J.-L. Vay, Phys. Rev. Lett. 98, 130405 (2007 of plasma accelerators to very high energies and accurately models the laser evolution and the accelerated

Geddes, Cameron Guy Robinson

126

Biomedical Optics Laser Laboratory The lab's objective is to improve human health through research and education in Biomedical Optics, a  

E-Print Network (OSTI)

Biomedical Optics Laser Laboratory The lab's objective is to improve human health through research and education in Biomedical Optics, a multidisciplinary field incorporating elements of the physical and life in Biomedical Optics involves developing and applying methods of optical science and engineering

Kamat, Vineet R.

127

Status of the visible Free-Electron Laser at the Brookhaven Accelerator Test Facility  

SciTech Connect

The 500 nm Free-Electron Laser (ATF) of the Brookhaven National Laboratory is reviewed. We present an overview of the ATF, a high-brightness, 50-MeV, electron accelerator and laser complex which is a users' facility for accelerator and beam physics. A number of laser acceleration and FEL experiments are under construction at the ATF. The visible FEL experiment is based on a novel superferric 8.8 mm period undulator. The electron beam parameters, the undulator, the optical resonator, optical and electron beam diagnostics are discussed. The operational status of the experiment is presented. 22 refs., 7 figs.

Batchelor, K.; Ben-Zvi, I.; Fernow, R.C.; Fisher, A.S.; Friedman, A.; Gallardo, J.; Ingold, G.; Kirk, H.; Kramer, S.; Lin, L.; Rogers, J.T.; Sheehan, J.F.; van Steenbergen, A.; Woodle, M.; Xie, J.; Yu, L.H.; Zhang, R. (Brookhaven National Lab., Upton, NY (United States)); Bhowmik, A. (Rockwell International Corp., Canoga Park, CA (United States). Rocketdyne Div.)

1991-01-01T23:59:59.000Z

128

Generation of electron beams from a laser-based advanced accelerator at Shanghai Jiao Tong University  

E-Print Network (OSTI)

At Shanghai Jiao Tong University, we have established a research laboratory for advanced acceleration research based on high-power lasers and plasma technologies. In a primary experiment based on the laser wakefield acceleration (LWFA) scheme, multi-hundred MeV electron beams having a reasonable quality are generated using 20-40 TW, 30 femtosecond laser pulses interacting independently with helium, neon, nitrogen and argon gas jet targets. The laser-plasma interaction conditions are optimized for stabilizing the electron beam generation from each type of gas. The electron beam pointing angle stability and divergence angle as well as the energy spectra from each gas jet are measured and compared.

Elsied, Ahmed M M; Li, Song; Mirzaie, Mohammad; Sokollik, Thomas; Zhang, Jie

2014-01-01T23:59:59.000Z

129

Efficient laser acceleration of proton beams for intense sources of low energy neutrinos  

SciTech Connect

The existence of highly efficient ion acceleration regimes in collective laser-plasma interactions opens up the possibility to develop high-energy-physics (HEP) facilities in conjunction with projects for inertial confined nuclear fusion (ICF) and neutron spallation sources.

Pegoraro, F. [Department of Physics, University of Pisa, Pisa (Italy); CNISM, Pisa (Italy); Bulanov, S. V.; Esirkepov, T. Zh.; Tajima, T. [Advanced Photon Research Centre, JAEA, Kizu, Kyoto (Japan); Migliozzi, P. [INFN, Sez. di Napoli, Naples (Italy); Terranova, F. [INFN, Laboratori Nazionali di Frascati, Frascati (Italy)

2006-04-07T23:59:59.000Z

130

Creating a Well-focused Laser-accelerated Proton Beam as a Driver...  

Office of Science (SC) Website

Proton Beam as a Driver for Proton Fast Ignition Focusing of laser accelerated proton beams advances with a novel cone target design. Print Text Size: A A A Subscribe...

131

Postacceleration Of Laser-Generated High Energy Protons Through Conventional Accelerator Linacs  

SciTech Connect

The post-acceleration of laser-generated protons through conventional drift tube linear accelerators has been simulated with the particle code Parmela. The proton source is generated on the rear surface of a target irradiated by an high-intensity (10{sup 19} W{center_dot}cm{sup -2}) short-pulse (350 fs) laser and focused by a microlens that allows selecting collimated protons at 7{+-}0.1 MeV with rms unnormalized emittance of 0.180 mm.mrad. The simulations show that protons can be accelerated by one drift tube linac tank to more than 14 MeV with unnormalized emittance growth of 8 in x and 22.6 in y directions when considering a total proton charge of 0.112 mA. This result shows for the first time that coupling between laser-plasma accelerators with traditional accelerators is possible, allowing a luminosity gain for the final beam.

Fuchs, Julien; Audebert, Patrick [Laboratoire pour l'Utilisation des Lasers Intenses, UMR 7605 CNRS-CEA-Ecole Polytechnique-Universite Paris VI, Palaiseau (France); Antici, Patrizio [Laboratoire pour l'Utilisation des Lasers Intenses, UMR 7605 CNRS-CEA-Ecole Polytechnique-Universite Paris VI, Palaiseau (France); Dipartimento di Energetica, Universita di Roma 'La Sapienza', Via Scarpa 14-16, 00165 Roma (Italy); Fazi, Mauro; Migliorati, Mauro; Palumbo, Luigi [Dipartimento di Energetica, Universita di Roma 'La Sapienza', Via Scarpa 14-16, 00165 Roma (Italy); Lombardi, Augusto [ATreP via Perini 181, 38100, Trento (Italy)

2008-06-24T23:59:59.000Z

132

XTREME OPTICS: the behavior of cavity optics for the Jefferson Lab free-electron laser  

SciTech Connect

The cavity optics within high power free-electron lasers based on energy-recovering accelerators are subjected to extreme conditions associated with illumination from a broad spectrum of radiation, often at high irradiances. This is especially true for the output coupler, where absorption of radiation by both the mirror substrate and coating places significant design restrictions to properly manage heat load and prevent mirror distortion. Besides the fundamental lasing wavelength, the mirrors are irradiated with light at harmonics of the fundamental, THz radiation generated by the bending magnets downstream of the wiggler, and x-rays produced when the electron beam strikes accelerator diagnostic components (e.g., wire scanners and view screens) or from inadvertent beam loss. The optics must reside within high vacuum at ~ 10-8 Torr and this requirement introduces its own set of complications. This talk discusses the performance of numerous high reflector and output coupler optics assemblies and provides a detailed list of lessons learned gleaned from years of experience operating the Upgrade IR FEL, a 10 kW-class, sub-ps laser with output wavelength from 1 to 6 microns.

Michelle D. Shinn; Christopher Behre; Stephen Benson; David Douglas; Fred Dylla; Christopher Gould; Joseph Gubeli; David Hardy; Kevin Jordan; George Neil; and Shukui Zhanga

2006-09-25T23:59:59.000Z

133

Energy Department Announces New Lab Program to Accelerate Commercialization of Clean Energy Technologies  

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

WASHINGTON Today, the Department of Energy launched a new $2.3 million pilot program to accelerate the transfer of innovative clean energy technologies from the DOEs National Laboratories into the commercial marketplace

134

Electron acceleration by a circularly polarized laser pulse in a plasma K. P. Singha)  

E-Print Network (OSTI)

Electron acceleration by a circularly polarized laser pulse in a plasma K. P. Singha) Department of electrons in an axial static field are presented. The electron rotates around the propagation direction occurs between the electrons and electric field of the laser pulse for two optimum values of the magnetic

Roy, Subrata

135

Injection and acceleration of electron bunch in a plasma wakefield produced by a chirped laser pulse  

SciTech Connect

An ultrashort laser pulse propagating in plasma can excite a nonlinear plasma wakefield which can trap and accelerate charged particles up to GeV. One-dimensional analysis of electron injection, trapping, and acceleration by different chirped pulses propagating in plasma is investigated numerically. In this paper, we inject electron bunches in front of the chirped pulses. It is indicated that periodical chirped laser pulse can trap electrons earlier than other pulses. It is shown that periodical chirped laser pulses lead to decrease the minimum momentum necessary to trap the electrons. This is due to the fact that periodical chirped laser pulses are globally much efficient than nonchirped pulses in the wakefield generation. It is found that chirped laser pulses could lead to much larger electron energy than that of nonchirped pulses. Relative energy spread has a lower value in the case of periodical chirped laser pulses.

Afhami, Saeedeh; Eslami, Esmaeil, E-mail: eeslami@iust.ac.ir [Department of Physics, Iran University of Science and Technology (IUST), Narmak, Tehran 16846-13114 (Iran, Islamic Republic of)

2014-06-15T23:59:59.000Z

136

Development of High-Gradient Dielectric Laser-Driven Particle Accelerator Structures  

SciTech Connect

The thrust of Stanford's program is to conduct research on high-gradient dielectric accelerator structures driven with high repetition-rate, tabletop infrared lasers. The close collaboration between Stanford and SLAC (Stanford Linear Accelerator Center) is critical to the success of this project, because it provides a unique environment where prototype dielectric accelerator structures can be rapidly fabricated and tested with a relativistic electron beam.

Byer, Robert L.

2013-11-07T23:59:59.000Z

137

2D electron density profile measurement in tokamak by laser-accelerated ion-beam probe  

SciTech Connect

A new concept of Heavy Ion Beam Probe (HIBP) diagnostic has been proposed, of which the key is to replace the electrostatic accelerator of traditional HIBP by a laser-driven ion accelerator. Due to the large energy spread of ions, the laser-accelerated HIBP can measure the two-dimensional (2D) electron density profile of tokamak plasma. In a preliminary simulation, a 2D density profile was reconstructed with a spatial resolution of about 2 cm, and with the error below 15% in the core region. Diagnostics of 2D density fluctuation is also discussed.

Chen, Y. H.; Yang, X. Y.; Lin, C., E-mail: linchen0812@pku.edu.cn, E-mail: cjxiao@pku.edu.cn; Wang, X. G.; Xiao, C. J., E-mail: linchen0812@pku.edu.cn, E-mail: cjxiao@pku.edu.cn [State Key Lab of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871 (China); Wang, L. [Institute of Physics, Chinese Academy of Sciences, P. O. Box 603, Beijing 100190 (China); Xu, M. [Center for Fusion Science of Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041 (China)

2014-11-15T23:59:59.000Z

138

Two GeV Electrons Achieved by Laser Plasma Wakefield Acceleration | U.S.  

Office of Science (SC) Website

Two GeV Electrons Achieved by Laser Plasma Wakefield Acceleration Two GeV Electrons Achieved by Laser Plasma Wakefield Acceleration High Energy Physics (HEP) HEP Home About Research Facilities Science Highlights Benefits of HEP Funding Opportunities Advisory Committees News & Resources Contact Information High Energy Physics U.S. Department of Energy SC-25/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3624 F: (301) 903-2597 E: sc.hep@science.doe.gov More Information » July 2013 Two GeV Electrons Achieved by Laser Plasma Wakefield Acceleration Scientists at University of Texas, Austin, accelerate electrons to 2 GeV in table top apparatus. Print Text Size: A A A Subscribe FeedbackShare Page Click to enlarge photo. Enlarge Photo Image courtesy of Neil Fazel The inside of the University of Texas, Austin, vacuum chamber where

139

Coulomb driven energy boost of heavy ions for laser plasma acceleration  

E-Print Network (OSTI)

An unprecedented increase of kinetic energy of laser accelerated heavy ions is demonstrated. Ultra thin gold foils have been irradiated by an ultra short laser pulse at an intensity of $6\\times 10^{19}$ W/cm$^{2}$. Highly charged gold ions with kinetic energies up to $> 200$ MeV and a bandwidth limited energy distribution have been reached by using $1.3$ Joule laser energy on target. $1$D and $2$D Particle in Cell simulations show how a spatial dependence on the ions ionization leads to an enhancement of the accelerating electrical field. Our theoretical model considers a varying charge density along the target normal and is capable of explaining the energy boost of highly charged ions, leading to a higher efficiency in laser acceleration of heavy ions.

Braenzel, J; Platonov, K; Klingsporn, M; Ehrentraut, L; Sandner, W; Schnrer, M

2014-01-01T23:59:59.000Z

140

Self-Guided Laser Wakefield Acceleration beyond 1 GeV Using Ionization-Induced Injection  

SciTech Connect

The concepts of matched-beam, self-guided laser propagation and ionization-induced injection have been combined to accelerate electrons up to 1.45 GeV energy in a laser wakefield accelerator. From the spatial and spectral content of the laser light exiting the plasma, we infer that the 60 fs, 110 TW laser pulse is guided and excites a wake over the entire 1.3 cm length of the gas cell at densities below 1.5x10{sup 18} cm{sup -3}. High-energy electrons are observed only when small (3%) amounts of CO{sub 2} gas are added to the He gas. Computer simulations confirm that it is the K-shell electrons of oxygen that are ionized and injected into the wake and accelerated to beyond 1 GeV energy.

Clayton, C. E.; Joshi, C.; Lu, W.; Marsh, K. A.; Mori, W. B.; Pak, A.; Tsung, F. S. [Department of Electrical Engineering, University of California, Los Angeles, California 90095 (United States); Ralph, J. E.; Albert, F.; Glenzer, S. H.; Froula, D. H. [L-399, Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551 (United States); Fonseca, R. A.; Martins, S. F.; Silva, L. O. [GoLP/IPFN-LA, Instituto Superior Tecnico, Lisboa (Portugal); Pollock, B. B.; Ross, J. S. [L-399, Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551 (United States); MAE Department, University of California, San Diego, La Jolla, California 92093 (United States)

2010-09-03T23:59:59.000Z

Note: This page contains sample records for the topic "lab laser accelerator" 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-driven acceleration of a dense matter up to 'thermonuclear' velocities  

Science Journals Connector (OSTI)

The results of theoretical studies and numerical simulations of laser-driven acceleration of a flat foil up to ultrahigh velocity of the order of 1000?km?s?1, which corresponds to the achievement of thermonuclear temperatures due to kinetic energy transition into thermal energy at an inelastic impact, are reported. The behavior of a foil accelerated to such high velocities, in particular, the distribution of foil density, which defines thermonuclear reaction intensity, has been studied. The calculation results are compared with the results of the experiments performed on the Gekko/HIPER laser, where a laser-driven projectile achieved record-breaking velocity. The laser pulse and foil parameters responsible for acceleration of the projectile up to 'thermonuclear' velocities in a dense state have been determined.

S Yu Gus'kov; H Azechi; N N Demchenko; V V Demchenko; I Ya Doskoch; M Murakami; H Nagatomo; V B Rozanov; S Sakaiya; R V Stepanov; N V Zmitrenko

2007-01-01T23:59:59.000Z

142

Development of Advanced Beam Halo Diagnostics at the Jefferson Lab Free-Electron-Laser Facility  

SciTech Connect

High average current and high brightness electron beams are needed for many applications. At the Jefferson Lab FEL facility, the search for dark matter with the FEL laser beam has produced some interesting results, and a second very promising experiment called ?DarkLight?, using the JLab Energy-recovery-linac (ERL) machine has been put forward. Although the required beam current has been achieved on this machine, one key challenge is the management of beam halo. At the University of Md. (UMD) we have demonstrated a high dynamic range halo measurement method using a digital micro-mirror array device (DMD). A similar system has been established at the JLab FEL facility as a joint effort by UMD and JLab to measure the beam halo on the high current ERL machine. Preliminary experiments to characterize the halo were performed on the new UV FEL. In this paper, the limitations of the present system will be analyzed and a discussion of other approaches (such as an optimized coronagraph) for further extending the dynamic range will be presented. We will also discuss the possibility of performing both longitudinal and transverse (3D) halo measurements together on a single system.

Shukui Zhang, Stephen Benson, Dave Douglas, Frederick Wilson, Hao Zhang, Anatoly Shkvarunets, Ralph Fiorito

2011-03-01T23:59:59.000Z

143

Longitudinal instabilities affecting the moving critical layer laser-plasma ion accelerators  

E-Print Network (OSTI)

In this work we analyze the longitudinal instabilities of propagating acceleration structures that are driven by a relativistically intense laser at the moving plasma critical layer [1]. These instabilities affect the energy-spectra of the accelerated ion-beams in propagating critical layer acceleration schemes [2][3]. Specifically, using analytical theory and PIC simulations we look into three fundamental physical processes and their interplay that are crucial to the understanding of energy spectral control by making the laser-plasma ion accelerators stable. The interacting processes are (i) Doppler-shifted ponderomotive bunching [1][4] (ii) potential quenching by beam-loading [2] and (iii) two-stream instabilities. These phenomenon have been observed in simulations analyzing these acceleration processes [5][6][7]. From the preliminary models and results we present in this work, we can infer measures by which these instabilities can be controlled [8] for improving the energy-spread of the beams.

Sahai, Aakash Ajit

2014-01-01T23:59:59.000Z

144

Control of seeding phase for a cascaded laser wakefield accelerator with gradient injection  

SciTech Connect

We demonstrated experimentally the seeding-phase control for a two-stage laser wakefield accelerator with gradient injection. By optimizing the seeding phase of electrons into the second stage, electron beams beyond 0.5 GeV with a 3% rms energy spread were produced over a short acceleration distance of ?2 mm. Peak energy of the electron beam was further extended beyond 1 GeV by lengthening the second acceleration stage to 5 mm. Time-resolved magnetic field measurements via magneto-optical Faraday polarimetry allowed us to monitor the processes of electron seeding and acceleration in the second stage.

Wang, Wentao; Li, Wentao; Liu, Jiansheng; Wang, Cheng; Chen, Qiang; Zhang, Zhijun; Qi, Rong; Leng, Yuxin; Liang, Xiaoyan; Liu, Yanqi; Lu, Xiaoming; Wang, Cheng; Li, Ruxin; Xu, Zhizhan [State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (CAS), Shanghai 201800 (China)] [State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences (CAS), Shanghai 201800 (China)

2013-12-09T23:59:59.000Z

145

Summary Report of Working Group 1: Laser-Plasma Acceleration  

E-Print Network (OSTI)

structure providing a linear mechanism with potential to harness low-energy laser systems [11 94720, USA Department of Electrical Engineering, University of California, Los Angeles, Westwood, CA

Geddes, Cameron Guy Robinson

146

Kilotesla Magnetic Assisted Fast Laser Ignited Boron-11 Hydrogen Fusion with Nonlinear Force Driven Ultrahigh Accelerated Plasma Blocks  

Science Journals Connector (OSTI)

Nuclear fusion with confinement by available kilotesla magnetic fields ... combination of this approach with the established ultrahigh laser acceleration of plasma blocks driven by nonlinear (ponderomotive) forc...

P. Lalousis; S. Moustaizis; H. Hora; G. H. Miley

2014-09-01T23:59:59.000Z

147

The analytic model of a laser-accelerated plasma target and its stability  

SciTech Connect

A self-consistent kinetic theory of a laser-accelerated plasma target with distributed electron/ion densities is developed. The simplified model assumes that after an initial transition period the bulk of cold ions are uniformly accelerated by the self-consistent electric field generated by hot electrons trapped in combined ponderomotive and electrostatic potentials. Several distinct target regions (non-neutral ion tail, non-neutral electron sheath, and neutral plasma bulk) are identified and analytically described. It is shown analytically that such laser-accelerated finite-thickness target is susceptible to Rayleigh-Taylor (RT) instability. Particle-in-cell simulations of the seeded perturbations of the plasma target reveal that, for ultra-relativistic laser intensities, the growth rate of the RT instability is depressed from the analytic estimates.

Khudik, V., E-mail: vkhudik@physics.utexas.edu; Yi, S. A.; Siemon, C.; Shvets, G. [Department of Physics and Institute for Fusion Studies, University of Texas at Austin, One University Station C1500, Austin, Texas 78712 (United States)] [Department of Physics and Institute for Fusion Studies, University of Texas at Austin, One University Station C1500, Austin, Texas 78712 (United States)

2014-01-15T23:59:59.000Z

148

Broad Energy Spectrum of Laser-Accelerated Protons for Spallation-Related Physics  

Science Journals Connector (OSTI)

A beam of MeV protons, accelerated by ultraintense laser-pulse interactions with a thin target foil, is used to investigate nuclear reactions of interest for spallation physics. The laser-generated proton beam is shown (protons were measured) to have a broad energy distribution, which closely resembles the expected energy spectrum of evaporative protons (below 50MeV) produced in GeV-proton-induced spallation reactions. The protons are used to quantify the distribution of residual radioisotopes produced in a representative spallation target (Pb), and the results are compared with calculated predictions based on spectra modeled with nuclear Monte Carlo codes. Laser-plasma particle accelerators are shown to provide data relevant to the design and development of accelerator driven systems.

P. McKenna; K. W. D. Ledingham; S. Shimizu; J. M. Yang; L. Robson; T. McCanny; J. Galy; J. Magill; R. J. Clarke; D. Neely; P. A. Norreys; R. P. Singhal; K. Krushelnick; M. S. Wei

2005-03-04T23:59:59.000Z

149

BELLA World Record Sets Stage for Laser Experiments in Novel Acceleration  

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

BELLA World Record Sets Stage for Laser Experiments in Novel BELLA World Record Sets Stage for Laser Experiments in Novel Acceleration Techniques High Energy Physics (HEP) HEP Home About Research Facilities Science Highlights Benefits of HEP Funding Opportunities Advisory Committees News & Resources Contact Information High Energy Physics U.S. Department of Energy SC-25/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3624 F: (301) 903-2597 E: sc.hep@science.doe.gov More Information » October 2012 BELLA World Record Sets Stage for Laser Experiments in Novel Acceleration Techniques Laser Delivers One Petawatt of Power in a Pulse only 40 Femtoseconds Long Every Second Print Text Size: A A A Subscribe FeedbackShare Page Click to enlarge photo. Enlarge Photo Image courtesy of Roy Kaltschmidt, LBNL

150

News Media | Jefferson Lab  

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

Media Kit News Media Input Windows for Niobium Cavities Jefferson Lab is a world leader in SRF technologies, fabricating many of the parts essential to particle accelerators, such...

151

Resources | Jefferson Lab  

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

Resources Resources Machine Control Center Display Jefferson Lab's accelerator is operated from the Machine Control Center. The MCC features a full-wall display that allows...

152

Resources | Jefferson Lab  

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

Resources Machine Control Center Display Jefferson Lab's accelerator is operated from the Machine Control Center. The MCC features a full-wall display that allows operators to...

153

Observation of Rayleigh-Taylor-like Structures in a Laser-Accelerated Foil  

Science Journals Connector (OSTI)

The development of the Rayleigh-Taylor hydrodynamic instability was studied in laser-accelerated targets by introduction of mass thickness variations in foil targets. Observations made by side-on flash x radiography showed target structures and mass redistribution effects which resemble Rayleigh-Taylor bubbles and spikes, including not only advanced broadening of the spike tips on the laser-irradiated side of the foil but also projections of mass on the unirradiated side. The observations compare well with numerical simulations.

R. R. Whitlock; M. H. Emery; J. A. Stamper; E. A. McLean; S. P. Obenschain; M. C. Peckerar

1984-03-05T23:59:59.000Z

154

Two-Screen Method for Determining Electron Beam Energy and Deflection from Laser Wakefield Acceleration  

SciTech Connect

Laser Wakefield Acceleration (LWFA) experiments have been performed at the Jupiter Laser Facility, Lawrence Livermore National Laboratory. In order to unambiguously determine the output electron beam energy and deflection angle at the plasma exit, we have implemented a two-screen electron spectrometer. This system is comprised of a dipole magnet followed by two image plates. By measuring the electron beam deviation from the laser axis on each plate, both the energy and deflection angle at the plasma exit are determined through the relativistic equation of motion.

Pollock, B B; Ross, J S; Tynan, G R; Divol, L; Glenzer, S H; Leurent, V; Palastro, J P; Ralph, J E; Froula, D H; Clayton, C E; Marsh, K A; Pak, A E; Wang, T L; Joshi, C

2009-04-24T23:59:59.000Z

155

Laser ion acceleration by using the dynamic motion of a target  

SciTech Connect

Proton acceleration by using a 620 TW, 18 J laser pulse of peak intensity of 510{sup 21} W/cm{sup 2} irradiating a disk target is examined using three-dimensional particle-in-cell simulations. It is shown that protons are accelerated efficiently to high energy for a light material in the first layer of a double-layer target, because a strongly inhomogeneous expansion of the first layer occurs by a Coulomb explosion within such a material. Moreover, a large movement of the first layer for the accelerated protons is produced by radiation-pressure-dominant acceleration. A time-varying electric potential produced by this expanding and moving ion cloud accelerates protons effectively. In addition, using the best material for the target, one can generate a proton beam with an energy of 200 MeV and an energy spread of 2%.

Morita, Toshimasa [Advanced Beam Technology Research Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215 (Japan)] [Advanced Beam Technology Research Division, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215 (Japan)

2013-09-15T23:59:59.000Z

156

Frequency chirp and pulse shape effects in self-modulated laser wakefield accelerators  

SciTech Connect

The effect of asymmetric laser pulses on plasma wave excitation in a self-modulated laser wakefield accelerator is examined. Laser pulse shape and frequency chirp asymmetries, controlled experimentally in the laser system through a grating pair compressor, are shown to strongly enhance measured electron yields for certain asymmetries. It is shown analytically that a positive (negative) frequency chirp enhances (suppresses) the growth rate of the Raman forward scattering and near-forward Raman sidescatter instabilities, but is of minimal importance for the experimental parameters. Temporal laser pulse shapes with fast rise times (< plasma period) are shown to generate larger wakes (compared to slow rise time pulses) which seed the growth of the plasma wave, resulting in enhanced electron yield.

Schroeder, C.B.; Esarey, E.; Geddes, C.G.R.; Toth, Cs.; Shadwick, B.A.; van Tilborg, J.; Faure, J.; Leemans, W.P.

2002-11-07T23:59:59.000Z

157

Novel techniques of laser acceleration: from structures to plasmas  

Science Journals Connector (OSTI)

...numerical aperture was used to focus the mid-IR beam. A set of...omega=0.95, a crit initial plasma wave amplitude, u 0=0.08...PHY-0114336 administered by the FOCUS Center at the University of...laser-excited relativistic electron plasma waves. Phys. Rev. Lett...

2006-01-01T23:59:59.000Z

158

Magnetic-field generation and electron acceleration in relativistic laser channel  

E-Print Network (OSTI)

Magnetic-field generation and electron acceleration in relativistic laser channel I. Yu. Kostyukov itself as a strong axial magnetic field inverse Faraday effect . The magnitude of this magnetic field is calculated and related to the amount of the absorbed energy. Absorbed energy and generated magnetic field

159

Experimental Observation of Electrons Accelerated in Vacuum to Relativistic Energies by a High-Intensity Laser  

Science Journals Connector (OSTI)

Free electrons have been accelerated in vacuum to MeV energies by a high-intensity subpicosecond laser pulse ( 1019 W/cm2, 300 fs). The experimental data are in good agreement with the relativistic motion of electrons in a spatially and temporally finite electromagnetic field, both in terms of maximum energy and scattering angle.

G. Malka; E. Lefebvre; J. L. Miquel

1997-04-28T23:59:59.000Z

160

Direct particle acceleration by two identical crossed radially polarized laser beams  

SciTech Connect

Electrons and {alpha} particles injected midway between two ultrahigh intensity crossed laser beams of radial polarization are shown to be accelerated in vacuum to several gigaelectron volts and to have average energy gradients in excess of 150 GeV/m. A unique model of the crossing beams is suggested, which maximizes the particle energy gain and minimizes the particle-beam diffraction.

Salamin, Yousef I. [Department of Physics, American University of Sharjah, P.O. Box 26666, Sharjah (United Arab Emirates)

2010-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "lab laser accelerator" 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

Research | Jefferson Lab  

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

Free-Electron Laser Research Inspecting an injector assembly at Jefferson Lab's Free-Electron Laser. A D D I T I O N A L L I N K S: Read more Nuclear Imaging Research Jefferson...

162

FEL Program | Jefferson Lab  

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

Science Conducting An Experiment at the Free-Electron Laser A broad range of experiments are conducted at Jefferson Lab's Free-Electron Laser facility. A D D I T I O N A L L I N K...

163

MeV-Energy X Rays from Inverse Compton Scattering with Laser-Wakefield Accelerated Electrons  

Science Journals Connector (OSTI)

We report the generation of MeV x rays using an undulator and accelerator that are both driven by the same 100-terawatt laser system. The laser pulse driving the accelerator and the scattering laser pulse are independently optimized to generate a high energy electron beam (>200??MeV) and maximize the output x-ray brightness. The total x-ray photon number was measured to be ?1107, the source size was 5???m, and the beam divergence angle was ?10??mrad. The x-ray photon energy, peaked at 1MeV (reaching up to 4MeV), exceeds the thresholds of fundamental nuclear processes (e.g., pair production and photodisintegration).

S. Chen; N. D. Powers; I. Ghebregziabher; C. M. Maharjan; C. Liu; G. Golovin; S. Banerjee; J. Zhang; N. Cunningham; A. Moorti; S. Clarke; S. Pozzi; D. P. Umstadter

2013-04-10T23:59:59.000Z

164

Laser triggering of water switches in terrawatt-class pulse power accelerators.  

SciTech Connect

Focused Beams from high-power lasers have been used to command trigger gas switches in pulse power accelerators for more than two decades. This Laboratory-Directed Research and Development project was aimed at determining whether high power lasers could also command trigger water switches on high-power accelerators. In initial work, we determined that focused light from three harmonics of a small pulsed Nd:YAG laser at 1064 nm, 532 nm, and 355 nm could be used to form breakdown arcs in water, with the lowest breakdown thresholds of 110 J/cm{sup 2} or 14 GW/cm{sup 2} at 532 nm in the green. In laboratory-scale laser triggering experiments with a 170-kV pulse-charged water switch with a 3-mm anode-cathode gap, we demonstrated that {approx}90 mJ of green laser energy could trigger the gap with a 1-{sigma} jitter of less than 2ns, a factor of 10 improvement over the jitter of the switch in its self breaking mode. In the laboratory-scale experiments we developed optical techniques utilizing polarization rotation of a probe laser beam to measure current in switch channels and electric field enhancements near streamer heads. In the final year of the project, we constructed a pulse-power facility to allow us to test laser triggering of water switches from 0.6- MV to 2.0 MV. Triggering experiments on this facility using an axicon lens for focusing the laser and a switch with a 740 kV self-break voltage produced consistent laser triggering with a {+-} 16-ns 1-{sigma} jitter, a significant improvement over the {+-} 24-ns jitter in the self-breaking mode.

Woodworth, Joseph Ray; Johnson, David Lee (Titan Pulse Sciences, San Leandro, CA); Wilkins, Frank (Bechtel Nevada, Las Vegas, NV); Van De Valde, David (EG& G Technical Services, Albuquerque, NM); Sarkisov, Gennady Sergeevich (Ktech Corporation, Albuquerque, NM); Zameroski, Nathan D.; Starbird, Robert L. (Bechtel Nevada, Las Vegas, NV)

2005-12-01T23:59:59.000Z

165

Spectrum bandwidth narrowing of Thomson scattering X-rays with energy chirped electron beams from laser wakefield acceleration  

SciTech Connect

We study incoherent Thomson scattering between an ultrashort laser pulse and an electron beam accelerated from a laser wakefield. The energy chirp effects of the accelerated electron beam on the final radiation spectrum bandwidth are investigated. It is found that the scattered X-ray radiation has the minimum spectrum width and highest intensity as electrons are accelerated up to around the dephasing point. Furthermore, it is proposed that the electron acceleration process inside the wakefield can be studied by use of 90 Thomson scattering. The dephasing position and beam energy chirp can be deduced from the intensity and bandwidth of the scattered radiation.

Xu, Tong; Chen, Min, E-mail: minchen@sjtu.edu.cn; Li, Fei-Yu; Yu, Lu-Le [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China)] [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China); Sheng, Zheng-Ming, E-mail: zmsheng@sjtu.edu.cn [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China) [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China); SUPA, Department of Physics, University of Strathclyde, Glasgow G4 0NG (United Kingdom); Zhang, Jie [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China) [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China); Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190 (China)

2014-01-06T23:59:59.000Z

166

Plastic lab-on-a-chip for fluorescence excitation with integrated organic semiconductor lasers  

Science Journals Connector (OSTI)

Laser light excitation of fluorescent markers offers highly sensitive and specific analysis for bio-medical or chemical analysis. To profit from these advantages for applications in...

Vannahme, Christoph; Klinkhammer, Snke; Lemmer, Uli; Mappes, Timo

2011-01-01T23:59:59.000Z

167

Practical method and device for enhancing pulse contrast ratio for lasers and electron accelerators  

DOE Patents (OSTI)

An apparatus and method for enhancing pulse contrast ratios for drive lasers and electron accelerators. The invention comprises a mechanical dual-shutter system wherein the shutters are placed sequentially in series in a laser beam path. Each shutter of the dual shutter system has an individually operated trigger for opening and closing the shutter. As the triggers are operated individually, the delay between opening and closing first shutter and opening and closing the second shutter is variable providing for variable differential time windows and enhancement of pulse contrast ratio.

Zhang, Shukui; Wilson, Guy

2014-09-23T23:59:59.000Z

168

Accelerator and Fusion Research Division  

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

Outreach and Diversity Highlights Safety Other Sites and Labs Intramural Outreach and Diversity Highlights Safety Other Sites and Labs Intramural Historical photo of Laboratory founder and cyclotron inventor Ernest Orlando Lawrence at his desk OUR SCIENTIFIC PROGRAMS Accelerator Physics for the ALS Center for Beam Physics LOASIS Laboratory Fusion Science and Ion Beam Technology Superconducting Magnets Free Electron Laser R&D News: AFRD's Jean-Luc Vay and former AFRD scientist Kwang-Je Kim share the US Particle Accelerator School Prize. Andre Anders places two articles among the year's top 30 in the Journal of Applied Physics. AFRD personnel win an R&D 100 in a joint project with industry; the laser at the heart of BELLA sets a world record for laser power. Employees: Safety tips regarding the mountain lion are available. The results from our two most recent Self-Assessment Focus Groups are up, covering emergency preparedness and ergonomics while working offsite.

169

Approach towards quasi-monoenergetic laser ion acceleration with doped target  

SciTech Connect

Ion acceleration using a laser pulse irradiating a disk target that includes hydrogen and carbon is examined using three-dimensional particle-in-cell simulations. It is shown that over 200?MeV protons can be generated using a 620 TW, 5??10{sup 21}?W/cm{sup 2} laser pulse. In a polyethylene (CH{sub 2}) target, protons and carbon ions separate and form two layers by radiation pressure acceleration. A strong Coulomb explosion in this situation and Coulomb repulsion between each layer generates high energy protons. A doped target consisting of low density hydrogen within a carbon disk becomes a double layer target that is comprised of a thin low density hydrogen disk on the surface of a high-Z atom layer. This then generates a quasi-monoenergetic proton beam.

Morita, Toshimasa [Quantum Beam Science Directorate, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215 (Japan)] [Quantum Beam Science Directorate, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215 (Japan)

2014-05-15T23:59:59.000Z

170

1.1 Simulations of a Free-Electron Laser Oscillator at Jefferson Lab Lasing in the Vacuum Ultraviolet  

SciTech Connect

The UVFEL at Jefferson Lab has provided a 10 eV photon beam for users by outcoupling the coherent third harmonic of the UVFEL operated at 372 nm. This can provide up to tens of milliwatts of power in the VUV. Operation of the FEL at the fundamental might enhance this power by up to a factor of 1000. With minor upgrades to the accelerator now underway and a new undulator proposed by Calabazas Creek Research, Inc. we show that we can lase in the fundamental at 124 nm. The predicted output is higher by four orders of magnitude on an average power basis and six orders of magnitude on a peak fluence basis than the Advanced Light Source at Lawrence Berkeley National Laboratory.

Shinn, Michelle D. [JLAB; Benson, Stephen V. [JLAB

2013-04-01T23:59:59.000Z

171

Coulomb explosion effect and the maximum energy of protons accelerated by high-power lasers  

Science Journals Connector (OSTI)

The acceleration of light ions (protons) through the interaction of a high-power laser pulse with a double-layer target is theoretically studied by means of two-dimensional particle-in-cell simulations and a one-dimensional analytical model. It is shown that the maximum energy acquired by the accelerated light ions (protons) depends on the physical characteristics of a heavy-ion layer (electron-ion mass ratio and effective charge state of the ions). In our theoretical model, the hydrodynamic equations for both electron and heavy-ion species are solved and the test-particle approximation for the light ions (protons) is applied. The heavy-ion motion is found to modify the longitudinal electric field distribution, thus changing the acceleration conditions for the protons.

E. Fourkal; I. Velchev; C.-M. Ma

2005-03-25T23:59:59.000Z

172

Self-truncated ionization injection and consequent monoenergetic electron bunches in laser wakefield acceleration  

SciTech Connect

The ionization-induced injection in laser wakefield acceleration has been recently demonstrated to be a promising injection scheme. However, the energy spread controlling in this mechanism remains a challenge because continuous injection in a mixed gas target is usually inevitable. Here, we propose that by use of certain initially unmatched laser pulses, the electron injection can be constrained to the very front region of the mixed gas target, typically in a length of a few hundreds micrometers determined by the laser self-focusing and the wake deformation. As a result, the produced electron beam has narrow energy spread and meanwhile contains tens of pC in charge. Both multidimensional simulations and theoretical analysis illustrate the effectiveness of this scheme.

Zeng, Ming; Zhang, Jie [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China)] [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China); Chen, Min, E-mail: minchen@sjtu.edu.cn [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China) [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China); Department of Mathematics, Institute of Natural Sciences, and MOE-LSC, Shanghai Jiao Tong University, Shanghai 20040 (China); Sheng, Zheng-Ming, E-mail: zmsheng@sjtu.edu.cn [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China) [Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China); SUPA, Department of Physics, University of Strathclyde, Glasgow G4 0NG (United Kingdom); Mori, Warren B. [University of California, Los Angeles, California 90095 (United States)] [University of California, Los Angeles, California 90095 (United States)

2014-03-15T23:59:59.000Z

173

Optimizing Laser-accelerated Ion Beams for a Collimated Neutron Source  

SciTech Connect

High-flux neutrons for imaging and materials analysis applications have typically been provided by accelerator- and reactor-based neutron sources. A novel approach is to use ultraintense (>1018W/cm2) lasers to generate picosecond, collimated neutrons from a dual target configuration. In this article, the production capabilities of present and upcoming laser facilities are estimated while independently maximizing neutron yields and minimizing beam divergence. A Monte-Carlo code calculates angular and energy distributions of neutrons generated by D-D fusion events occurring within a deuterated target for a given incident beam of D+ ions. Tailoring of the incident distribution via laser parameters and microlens focusing modifies the emerging neutrons. Projected neutron yields and distributions are compared to conventional sources, yielding comparable on-target fluxes per discharge, shorter time resolution, larger neutron energies and greater collimation.

C.L. Ellison and J. Fuchs

2010-09-23T23:59:59.000Z

174

Electron acceleration by an intense short pulse laser in a static magnetic field in vacuum K. P. Singh*  

E-Print Network (OSTI)

Electron acceleration by an intense short pulse laser in a static magnetic field in vacuum K. P 2003; revised manuscript received 22 December 2003; published 28 May 2004) Electron acceleration the peak of the pulse interacts with the electron and the direction of the static magnetic field is taken

Roy, Subrata

175

Study of electron acceleration and x-ray radiation as a function of plasma density in capillary-guided laser wakefield accelerators  

SciTech Connect

Laser wakefield electron acceleration in the blow-out regime and the associated betatron X-ray radiation were investigated experimentally as a function of the plasma density in a configuration where the laser is guided. Dielectric capillary tubes were employed to assist the laser keeping self-focused over a long distance by collecting the laser energy around its central focal spot. With a 40 fs, 16 TW pulsed laser, electron bunches with tens of pC charge were measured to be accelerated to an energy up to 300 MeV, accompanied by X-ray emission with a peak brightness of the order of 10{sup 21} ph/s/mm{sup 2}/mrad{sup 2}/0.1%BW. Electron trapping and acceleration were studied using the emitted X-ray beam distribution to map the acceleration process; the number of betatron oscillations performed by the electrons was inferred from the correlation between measured X-ray fluence and beam charge. A study of the stability of electron and X-ray generation suggests that the fluctuation of X-ray emission can be reduced by stabilizing the beam charge. The experimental results are in good agreement with 3D particle-in-cell (PIC) simulation.

Ju, J.; Dpp, A.; Cros, B. [Laboratoire de Physique des Gaz et des Plasmas, CNRS-Universit Paris-Sud, 91405 Orsay (France)] [Laboratoire de Physique des Gaz et des Plasmas, CNRS-Universit Paris-Sud, 91405 Orsay (France); Svensson, K.; Genoud, G.; Wojda, F.; Burza, M.; Persson, A.; Lundh, O.; Wahlstrm, C.-G. [Department of Physics, Lund University, P.O. Box 118, S-22100 Lund (Sweden)] [Department of Physics, Lund University, P.O. Box 118, S-22100 Lund (Sweden); Ferrari, H. [Consejo Nacional de Investigaciones Cientficas y Tcnicas (CONICET) and CNEA-CAB (Argentina)] [Consejo Nacional de Investigaciones Cientficas y Tcnicas (CONICET) and CNEA-CAB (Argentina)

2013-08-15T23:59:59.000Z

176

Low-Emittance Electron Bunches from a Laser-Plasma Accelerator Measured using Single-Shot X-Ray Spectroscopy  

E-Print Network (OSTI)

Low-Emittance Electron Bunches from a Laser-Plasma Accelerator Measured using Single-Shot X-Ray,8], x-ray [9­11], and -ray radiation [12,13]. The electron density wave gener- ated by an intense laser manuscript received 15 February 2012; published 10 August 2012) X-ray spectroscopy is used to obtain single

Geddes, Cameron Guy Robinson

177

Passive tailoring of laser-accelerated ion beam cut-off energy by using double foil assembly  

SciTech Connect

A double foil assembly is shown to be effective in tailoring the maximum energy produced by a laser-accelerated proton beam. The measurements compare favorably with adiabatic expansion simulations, and particle-in-cell simulations. The arrangement proposed here offers for some applications a simple and passive way to utilize simultaneously highest irradiance lasers that have best laser-to-ion conversion efficiency while avoiding the production of undesired high-energy ions.

Chen, S. N., E-mail: sophia.chen@polytechnique.edu; Brambrink, E.; Mancic, A.; Romagnani, L.; Audebert, P.; Fuchs, J., E-mail: julien.fuchs@polytechnique.fr [Laboratoire pour l'Utilisation des Lasers Intenses, UMR 7605 CNRS-CEA-cole Polytechnique-Universit Paris VI, Palaiseau (France); Robinson, A. P. L. [Central Laser Facility, STFC Rutherford-Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX (United Kingdom)] [Central Laser Facility, STFC Rutherford-Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX (United Kingdom); Antici, P. [Laboratoire pour l'Utilisation des Lasers Intenses, UMR 7605 CNRS-CEA-cole Polytechnique-Universit Paris VI, Palaiseau (France) [Laboratoire pour l'Utilisation des Lasers Intenses, UMR 7605 CNRS-CEA-cole Polytechnique-Universit Paris VI, Palaiseau (France); Dipartimento SBAI, Universit di Roma La Sapienza , Via Scarpa 14-16, 00165 Roma (Italy); INRS-nergie et Matriaux, 1650 bd. L. Boulet, Varennes, J3X1S2 Qubec (Canada); D'Humires, E. [Physics Department, MS-220, University of Nevada, Reno, Nevada 89557 (United States) [Physics Department, MS-220, University of Nevada, Reno, Nevada 89557 (United States); Centre de Physique Thorique, CNRS-Ecole Polytechnique, 91128 Palaiseau (France); University of BordeauxCNRSCEA, CELIA, UMR5107, 33405 Talence (France); Gaillard, S. [Physics Department, MS-220, University of Nevada, Reno, Nevada 89557 (United States)] [Physics Department, MS-220, University of Nevada, Reno, Nevada 89557 (United States); Grismayer, T.; Mora, P. [Centre de Physique Thorique, CNRS-Ecole Polytechnique, 91128 Palaiseau (France)] [Centre de Physique Thorique, CNRS-Ecole Polytechnique, 91128 Palaiseau (France); Ppin, H. [INRS-nergie et Matriaux, 1650 bd. L. Boulet, Varennes, J3X1S2 Qubec (Canada)] [INRS-nergie et Matriaux, 1650 bd. L. Boulet, Varennes, J3X1S2 Qubec (Canada)

2014-02-15T23:59:59.000Z

178

Measurement of the Betatron Radiation Spectrum Coming From a Laser Wakefield Accelerator  

SciTech Connect

A Laser Wakefield Accelerator (LWFA) is under development at Lawrence Livermore National Laboratory (LLNL) to produce electron bunches with GeV class energy and energy spreads of a few-percent. The ultimate goal is to provide a bright and compact photon source for high energy density physics. The interaction of a high power (200 TW), short pulse (50 fs) laser with neutral He gas can generate quasi-monoenergetic electron beams at energies up to 1 GeV. The laser pulse can be self-guided over a dephasing length of 1 cm (for a plasma density of 1.5 x 10{sup 18} cm{sup -3}) overcoming the limitation of vacuum diffraction. Betatron radiation is emitted while the accelerated electrons undergo oscillations in the wakefield electrostatic field. Here we present electron spectra measurements with a two screen spectrometer allowing to fix the ambiguities due to electron deflections at the plasma exit. They have measured monoenergetic electron beams above 300 MeV. Furthermore a forward directed x-ray beam is observed. The measured betatron spectrum agrees well with the calculated spectrum in the synchrotron asymptotic limit (SAL) using the measured electron beam parameters.

Leurent, V; Michel, P; Clayton, C E; Pollock, B; Doeppner, T; Wang, T L; Ralph, J; Pak, A; Marsh, K; Joshi, C; Tynan, G R; Divol, L; Palastro, J P; Glenzer, S H; Froula, D H

2008-08-12T23:59:59.000Z

179

Recent Developments on ALICE (Accelerators and Lasers In Combined Experiments) at Daresbury Laboratory  

SciTech Connect

Progress made in ALICE (Accelerators and Lasers In Combined Experiments) commissioning and a summary of the latest experimental results are presented in this paper. After an extensive work on beam loading effects in SC RF linac (booster) and linac cavities conditioning, ALICE can now operate in full energy recovery mode at the bunch charge of 40pC, the beam energy of 30MeV and train lengths of up to 100us. This improved operation of the machine resulted in generation of coherently enhanced broadband THz radiation with the energy of several tens of uJ per pulse and in successful demonstration of the Compton Backscattering x-ray source experiment. The next steps in the ALICE scientific programme are commissioning of the IR FEL and start of the research on the first non-scaling FFAG accelerator EMMA. Results from both projects will be also reported.

Saveliev, Y M; Buckley, R K; Buckley, S R; Clarke, J A; Corlett, P A; Dunning, D J; Goulden, A R; Hill, S F; Jackson, F; Jamison, S P; Jones, J K; Jones, L B; Leonard, S; McIntosh, P A; McKenzie, J W; Middleman, K J; Militsyn, B L; Moss, A J; Muratori, B D; Orrett, J F; Pattalwar, S M; Phillips, P J; Scott, D J; Seddon, E A; Shepherd, B.J.A.; Smith, S L; Thompson, N; Wheelhouse, A E; Williams, P H; Harrison, P; Holder, D J; Holder, G M; Schofield, A L; Weightman, P; Williams, R L; Laundry, D; Powers, T; Priebe, G

2010-05-01T23:59:59.000Z

180

Photos | Jefferson Lab  

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installation in Jefferson Lab's accelerator. A D D I T I O N A L L I N K S: Brochures Posters Flickr Public Affairs Fact Sheet Science at JLab top-right bottom-left-corner...

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181

Active manipulation of the spatial energy distribution of laser-accelerated proton beams  

Science Journals Connector (OSTI)

The spatial energy distributions of beams of protons accelerated by ultrahigh intensity (>1019W?cm2) picosecond laser pulse interactions with thin foil targets are investigated. Using separate, low intensity (<1013W?cm2) nanosecond laser pulses, focused onto the front surface of the target foil prior to the arrival of the high intensity pulse, it is demonstrated that the proton beam profile can be actively manipulated. In particular, results obtained with an annular intensity distribution at the focus of the low intensity beam are presented, showing smooth proton beams with a sharp circular boundary at all energies, which represents a significant improvement in the beam quality compared to irradiation with the picosecond beam alone.

D. C. Carroll; P. McKenna; O. Lundh; F. Lindau; C.-G. Wahlstrm; S. Bandyopadhyay; D. Pepler; D. Neely; S. Kar; P. T. Simpson; K. Markey; M. Zepf; C. Bellei; R. G. Evans; R. Redaelli; D. Batani; M. H. Xu; Y. T. Li

2007-12-12T23:59:59.000Z

182

Measurements of the critical power for self-injection of electrons in a laser wakefield accelerator  

SciTech Connect

A laser wakefield acceleration study has been performed in the matched, self-guided, blow-out regime where a 10 J, 60 fs laser produced 720 {+-} 50 MeV quasi-monoenergetic electrons with a divergence of {Delta}{theta} = 2.85 {+-} 0.15 mRad. While maintaining a nearly constant plasma density (3 x 10{sup 18} cm{sup -3}), a linear electron energy gain was measured from 100 MeV to 700 MeV when the plasma length was scaled from 3 mm to 8 mm. Absolute charge measurements indicate that self-injection occurs when P/P{sub cr} > 4 and saturates around 100 pC for P/P{sub cr} > 12. The results are compared with both analytical scalings and full 3D particle-in-cell simulations.

Froula, D H; Clayton, C E; Doppner, T; Fonseca, R A; Marsh, K A; Barty, C J; Divol, L; Glenzer, S H; Joshi, C; Lu, W; Martins, S F; Michel, P; Mori, W; Palastro, J P; Pollock, B B; Pak, A; Ralph, J E; Ross, J S; Siders, C; Silva, L O; Wang, T

2009-06-02T23:59:59.000Z

183

Compact tunable Compton x-ray source from laser-plasma accelerator and plasma mirror  

E-Print Network (OSTI)

We present results of the first tunable Compton backscattering (CBS) x-ray source that is based on the easily aligned combination of a laser-plasma accelerator (LPA) and a plasma mirror (PM). The LPA is driven in the blowout regime by 30 TW, 30 fs laser pulses, and produces high-quality, tunable, quasi-monoenergetic electron beams. A thin plastic film near the gas jet exit efficiently retro-reflects the LPA driving pulse with relativistic intensity into oncoming electrons to produce $2\\times10^{7}$ CBS x-ray photons per shot with 10-20 mrad angular divergence and 50 % (FWHM) energy spread without detectable bremsstrahlung background. The x-ray central energy is tuned from 75 KeV to 200 KeV by tuning the LPA e-beam central energy. Particle-in-cell simulations of the LPA, the drive pulse/PM interaction and CBS agree well with measurements.

Tsai, Hai-En; Shaw, Joseph; Li, Zhengyan; Arefiev, Alexey V; Zhang, Xi; Zgadzaj, Rafal; Henderson, Watson; Khudik, V; Shvets, G; Downer, M C

2014-01-01T23:59:59.000Z

184

2011 - 02 | Jefferson Lab  

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February 2011 Mon, 02212011 - 12:00am Jefferson Lab: Laser gun to eventually shoot down missiles (Daily Press) Sun, 02202011 - 12:00am Navy Breaks World Record With Futuristic...

185

News Links | Jefferson Lab  

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

of Energy (March 16, 2011, A Message from Dr. Timothy Hallman, DOE) Jefferson Lab: Laser gun to eventually shoot down missiles (February 21, 2011, Daily Press) Navy Breaks World...

186

1998 - 09 | Jefferson Lab  

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High Technology Firms, Jefferson Lab and Research Universities in Applied Research Center Mon, 08311998 - 11:00pm Jefferson First Light from New Free-Electron Laser (CERN Courier...

187

2006 - 04 | Jefferson Lab  

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April 2006 Sun, 04232006 - 1:00pm Jefferson Lab News - HAPPEx II reveals proton isn't very strange Mon, 04102006 - 1:00pm Free-Electron Laser Targets Fat Wed, 04052006 -...

188

Control of focusing fields in laser-plasma accelerators using higher-order modes E. Cormier-Michel,1,* E. Esarey,1  

E-Print Network (OSTI)

of intense laser pulses in plasma channels [1] has many applications, including x-ray lasers [2], highControl of focusing fields in laser-plasma accelerators using higher-order modes E. Cormier-order laser modes are analyzed as a method to control focusing forces and improve the electron bunch quality

Geddes, Cameron Guy Robinson

189

Origin of protons accelerated by an intense laser and the dependence of their energy on the plasma density  

Science Journals Connector (OSTI)

We study the high-energy (14 MeV) proton production from a slab plasma irradiated by a ultrashort high-power laser. In our 2.5-dimensional particle-in-cell simulations, a p-polarized laser beam of 1.61019 W/cm2, 300 fs, ?L=1.053 ?m, illuminates a slab plasma normally; the slab plasma consists of a hydrogen plasma, and the target plasma thickness and the laser spot size are 2.5?L and 5?L, respectively. The simulation results show that an emitted proton energy depends on the slab plasma density, and three kinds of high-energy proton beams are generated at the target plasma surfaces: one kind of the proton beams is produced at the laser-illuminated target surface and accelerated to the same laser-incident side. The second is generated at the target surface opposite to the laser-illuminated target surface and is accelerated outward on the same side. The third is generated at the laser-illuminated target surface and accelerated to the opposite side while passing through the target plasma. The simulations also show a mechanism of proton accelerations. In an overdense plasma, laser energy goes to energies of hot electrons and magnetic fields in part; the electrons oscillate around the slab plasma so that a static electric field is generated and consequently protons are extracted. The magnetic field generated in the slab plasma exists longer and heats up the plasma electrons to sustain the static electric field even after the laser termination.

Takashi Nakamura and Shigeo Kawata

2003-02-06T23:59:59.000Z

190

Livermore Lab's giant laser system will bring star power to Earth  

SciTech Connect

In the 50 years since the laser was first demonstrated in Malibu, California, on May 16, 1960, Lawrence Livermore National Laboratory (LLNL) has been a world leader in laser technology and the home for many of the world's most advanced laser systems. That tradition continues today at LLNL's National Ignition Facility (NIF), the world's most energetic laser system. NIF's completion in March 2009 not only marked the dawn of a new era of scientific research - it could also prove to be the next big step in the quest for a sustainable, carbon-free energy source for the world. NIF consists of 192 laser beams that will focus up to 1.8 million joules of energy on a bb-sized target filled with isotopes of hydrogen - forcing the hydrogen nuclei to collide and fuse in a controlled thermonuclear reaction similar to what happens in the sun and the stars. More energy will be produced by this 'ignition' reaction than the amount of laser energy required to start it. This is the long-sought goal of 'energy gain' that has eluded fusion researchers for more than half a century. Success will be a scientific breakthrough - the first demonstration of fusion ignition in a laboratory setting, duplicating on Earth the processes that power the stars. This impending success could not be achieved without the valuable partnerships forged with other national and international laboratories, private industry and universities. One of the most crucial has been between LLNL and the community in which it resides. Over 155 businesses in the local Tri-Valley area have contributed to the NIF, from industrial technology and engineering firms to tool manufacturing, electrical, storage and supply companies. More than $2.3B has been spent locally between contracts with nearby merchants and employee salaries. The Tri-Valley community has enabled the Laboratory to complete a complex and far-reaching project that will have national and global impact in the future. The first experiments were conducted on NIF last summer and fall, successfully delivering a world-record level of ultraviolet laser energy - more than 1.2 million joules - to a target. The experiments also demonstrated the target drive and target capsule conditions required to achieve fusion ignition. When ignition experiments begin later this year, NIF's lasers will create temperatures and pressures in the hydrogen target that exist only in the cores of stars and giant planets and inside thermonuclear weapons. As a key component of the National Nuclear Security Administration's Stockpile Stewardship Program, NIF will offer the means for sustaining a safe, secure and reliable U.S. nuclear deterrent without nuclear testing. NIF is uniquely capable of providing the experimental data needed to develop and validate computer models that will enable scientists to assess the continuing viability of the nation's nuclear stockpile. Along with this vital national security mission, success at NIF also offers the possibility of groundbreaking scientific discoveries in a wide variety of disciplines ranging from hydrodynamics to astrophysics. As a unique facility in the world that can create the conditions that exist in supernovas and in the cores of giant planets, NIF will help unlock the secrets of the cosmos and inspire the next generation of scientists. It is NIF's third mission, energy security that has been generating the most excitement in the news media and the international scientific community. The reasons are obvious: global energy demand, driven by population growth and the aspirations of the developing world, already is straining the planet's existing energy resources. Global need for electricity is expected to double from its current level of about two trillion watts (TW) to four TW by 2030 and could reach eight to ten TW by the end of the century. As many as 10,000 new billion-watt power plants will have to be built to keep up with this demand. Meeting this pressing need will require a sustainable carbon-free energy technology that can supply base load electricity to the world. Successful ignition experim

Moses, E

2010-04-08T23:59:59.000Z

191

Control of Laser Plasma Based Accelerators up to 1 GeV  

SciTech Connect

This dissertation documents the development of a broadband electron spectrometer (ESM) for GeV class Laser Wakefield Accelerators (LWFA), the production of high quality GeV electron beams (e-beams) for the first time in a LWFA by using a capillary discharge guide (CDG), and a statistical analysis of CDG-LWFAs. An ESM specialized for CDG-LWFAs with an unprecedented wide momentum acceptance, from 0.01 to 1.1 GeV in a single shot, has been developed. Simultaneous measurement of e-beam spectra and output laser properties as well as a large angular acceptance (> {+-} 10 mrad) were realized by employing a slitless scheme. A scintillating screen (LANEX Fast back, LANEX-FB)--camera system allowed faster than 1 Hz operation and evaluation of the spatial properties of e-beams. The design provided sufficient resolution for the whole range of the ESM (below 5% for beams with 2 mrad divergence). The calibration between light yield from LANEX-FB and total charge, and a study on the electron energy dependence (0.071 to 1.23 GeV) of LANEX-FB were performed at the Advanced light source (ALS), Lawrence Berkeley National Laboratory (LBNL). Using this calibration data, the developed ESM provided a charge measurement as well. The production of high quality electron beams up to 1 GeV from a centimeter-scale accelerator was demonstrated. The experiment used a 310 {micro}m diameter gas-filled capillary discharge waveguide that channeled relativistically-intense laser pulses (42 TW, 4.5 x 10{sup 18} W/cm{sup 2}) over 3.3 centimeters of sufficiently low density ({approx_equal} 4.3 x 10{sup 18}/cm{sup 3}) plasma. Also demonstrated was stable self-injection and acceleration at a beam energy of {approx_equal} 0.5 GeV by using a 225 {micro}m diameter capillary. Relativistically-intense laser pulses (12 TW, 1.3 x 10{sup 18}W/cm{sup 2}) were guided over 3.3 centimeters of low density ({approx_equal} 3.5 x 10{sup 18}/cm{sup 3}) plasma in this experiment. A statistical analysis of the CDG-LWFAs performance was carried out. By taking advantage of the high repetition rate experimental system, several thousands of shots were taken in a broad range of the laser and plasma parameters. An analysis program was developed to sort and select the data by specified parameters, and then to evaluate performance statistically. The analysis suggested that the generation of GeV-level beams comes from a highly unstable and regime. By having the plasma density slightly above the threshold density for self injection, (1) the longest dephasing length possible was provided, which led to the generation of high energy e-beams, and (2) the number of electrons injected into the wakefield was kept small, which led to the generation of high quality (low energy spread) e-beams by minimizing the beam loading effect on the wake. The analysis of the stable half-GeV beam regime showed the requirements for stable self injection and acceleration. A small change of discharge delay t{sub dsc}, and input energy E{sub in}, significantly affected performance. The statistical analysis provided information for future optimization, and suggested possible schemes for improvement of the stability and higher quality beam generation. A CDG-LWFA is envisioned as a construction block for the next generation accelerator, enabling significant cost and size reductions.

Nakamura, Kei

2007-12-03T23:59:59.000Z

192

100 MeV laser accelerator demonstration and 1 GeV baseline design development. 1992 Annual report  

SciTech Connect

The acceleration of relativistic electrons using the inverse Cerenkov effect was first demonstrated at Stanford University in 1981. Later, Fontana and Pantell developed an improved configuration for the inverse Cerenkov acceleration (ICA) process. A radially polarized laser beam is focused by an axicon onto the e-beam traveling through a gas-filled interaction region. The light intersects the e-beam at the Cerenkov angle {theta}{sub c}, where {theta}{sub c} = cos{sup {minus}1}(1/n{beta}), n is the index of refraction of the gas, and {beta} is the ratio of the electron velocity to the speed of light. The goal of the present program is to demonstrate improved laser acceleration using the Fontana and Pantell configuration. The experiments will be performed on the Accelerator Test Facility (ATF) located at Brookhaven National Laboratory (BNL). This facility features a 50 MeV linac fed by a Nd:YAG (4{omega}) laser-driven photocathode e-gun. It will be upgraded to 65 MeV in the near future. The ATF also has a high peak power CO{sub 2} laser, which was developed for laser acceleration studies. The present ICA experiment was divided into two phases. Phase 1 was to examine certain experimental issues in preparation for Phase 2. Phase 1 was successfully completed in the spring of 1992. Phase 2 is to perform the actual laser acceleration experiments on the ATF e-beam. The authors are currently waiting for the availability of the e-beam so that they can begin the Phase 2 experiments. In this section, the theory and experimental hardware for the present program are described. The results of the Phase 1 experiments are presented, and an update on the Phase 2 experiment is given.

Not Available

1992-12-01T23:59:59.000Z

193

Quasi-monoenergetic Electron Beams from Laser-plasma Acceleration by Ionization-induced Injection in Low- density Pure Nitrogen  

E-Print Network (OSTI)

We report a laser wakefield acceleration of electron beams up to 130 MeV from laser-driven 4-mm long nitrogen gas jet. By using a moderate laser intensity (3.5*10^18 W.cm^(-2) ) and relatively low plasma densities (0.8*10^18 cm^(-3) to 2.7*10^18 cm^(-3)) we have achieved a stable regime for laser propagation and consequently a stable generation of electron beams. We experimentally studied the dependence of the drive laser energy on the laser-plasma channel and electron beam parameters. The quality of the generated electron beams is discussed within the framework of the ionization-induced injection mechanism.

Tao, Mengze; Li, Song; Mirzaie, Mohammad; Chen, Liming; He, Fei; Cheng, Ya; Zhang, Jie

2014-01-01T23:59:59.000Z

194

A scintillator-based online detector for the angularly resolved measurement of laser-accelerated proton spectra  

SciTech Connect

In recent years, a new generation of high repetition rate ({approx}10 Hz), high power ({approx}100 TW) laser systems has stimulated intense research on laser-driven sources for fast protons. Considering experimental instrumentation, this development requires online diagnostics for protons to be added to the established offline detection tools such as solid state track detectors or radiochromic films. In this article, we present the design and characterization of a scintillator-based online detector that gives access to the angularly resolved proton distribution along one spatial dimension and resolves 10 different proton energy ranges. Conceived as an online detector for key parameters in laser-proton acceleration, such as the maximum proton energy and the angular distribution, the detector features a spatial resolution of {approx}1.3 mm and a spectral resolution better than 1.5 MeV for a maximum proton energy above 12 MeV in the current design. Regarding its areas of application, we consider the detector a useful complement to radiochromic films and Thomson parabola spectrometers, capable to give immediate feedback on the experimental performance. The detector was characterized at an electrostatic Van de Graaff tandetron accelerator and tested in a laser-proton acceleration experiment, proving its suitability as a diagnostic device for laser-accelerated protons.

Metzkes, J.; Kraft, S. D.; Sobiella, M.; Stiller, N.; Zeil, K.; Schramm, U. [Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden (Germany); Karsch, L.; Schuerer, M. [OncoRay - National Center for Radiation Research in Oncology, TU Dresden, Fetscherstr. 74, 01307 Dresden (Germany); Pawelke, J.; Richter, C. [Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden (Germany); OncoRay - National Center for Radiation Research in Oncology, TU Dresden, Fetscherstr. 74, 01307 Dresden (Germany)

2012-12-15T23:59:59.000Z

195

Frostbite Theater - Just for Fun - Jefferson Lab Open House (2010)  

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

Nitrogen Viewer Requests! Nitrogen Viewer Requests! Previous Video (Liquid Nitrogen Viewer Requests!) Frostbite Theater Main Index Next Video (Season One Bloopers) Season One Bloopers Jefferson Lab Open House (2010) Highlights from Jefferson Lab's 2010 Open House including portions of our electron accelerator, a peek inside an end station, and a visit to the Free Electron Laser. [ Show Transcript ] Announcer: Frostbite Theater presents... Cold Cuts! No baloney! Joanna and Steve: Just science! Joanna: Hi! I'm Joanna! Steve: And I'm Steve! Joanna: And we're here at Jefferson Lab's Open House! If you're interested in science, this is the place to be! Steve: Thousands of people have come to Jefferson Lab today to learn more about science, what we do here and to just have fun! Joanna: So what are some of the things that people can do when they're

196

Acceleration  

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Acceleration Acceleration of porous media simulations on the Cray XE6 platform Kirsten M. Fagnan, Michael Lijewski, George Pau, Nicholas J. Wright Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley, CA 94720 May 18, 2011 1 Introduction In this paper we investigate the performance of the Porous Media with Adaptive Mesh Refinment (PMAMR) code which was developed in the Center for Computational Science and Engineering at Lawrence Berkeley National Laboratory. This code is being used to model carbon sequestration and contaminant transport as part of the Advanced Simulation Capability for Environmental Management (ASCEM) project. The goal of the ASCEM project is to better understand and quantify flow and contaminant transport behavior in complex geological systems. It will also address the long-term performance of engineered components including cementitious materials in

197

An asymmetric emittance electron source for the GALAXIE dielectric-laser accelerator injector  

SciTech Connect

The GALAXIE project is a program to develop an all-optical, very high field accelerator and undulator integrated SASE FEL system based on dielectric laser-excited structures that support >GV/m fields. These structures are very wide in one direction to allow adequate charge given beam loading considerations, but also having small (subwavelength) apertures in the narrow direction. Such small vertical dimensions yield strict restrictions on the emittance in this direction, while no such constraint exists in the wide transverse direction. However, the overall beam brightness is restricted by the performance requirements on the FEL. To meet these demands, we are studying a very high field gun with a magnetized cathode, yielding a beam with angular momentum content. This beam is then subject to a skew-quad triplet that splits the emittances; this process is reversed to give a round beam after acceleration. This symmetric emittance beam avoids gain-degrading multiple-transverse-mode operation of the FEL, which also demands that the effects of the angular momentum in the beam be mitigated. In this paper we discuss the RF design of an X-band gun to be operated at {approx}200 MV/m peak field giving a 1 pC magnetized beam with unprecedented brightness. We examine the design of the focusing and skew-quad systems, investigating the associated beam dynamics and efficacy of emittance splitting.

Valloni, A.; Cahill, A.; Fukusawa, A.; Musumeci, P.; Spataro, B.; Yakub, A.; Rosenzweig, J. B. [Dept. of Physics and Astronomy, University of California, Los Angeles, 405 Hilgard Ave., Los Angeles, CA 90034 (United States); Accelerator Division, Laboratori Nazionali di Frascati (INFN-LNF), Via E. Fermi 40, Frascati (RM) 00044 (Italy); Dept. of Physics and Astronomy, University of California, Los Angeles, 405 Hilgard Ave., Los Angeles, CA 90034 (United States)

2012-12-21T23:59:59.000Z

198

Terahertz radiation as a bunch diagnostic for laser-wakefield-accelerated electron bunches  

SciTech Connect

Experimental results are reported from two measurement techniques (semiconductor switching and electro-optic sampling) that allow temporal characterization of electron bunches produced by a laser-driven plasma-based accelerator. As femtosecond electron bunches exit the plasma-vacuum interface, coherent transition radiation (at THz frequencies) is emitted. Measuring the properties of this radiation allows characterization of the electron bunches. Theoretical work on the emission mechanism is presented, including a model that calculates the THz wave form from a given bunch profile. It is found that the spectrum of the THz pulse is coherent up to the 200 {micro}m thick crystal (ZnTe) detection limit of 4 THz, which corresponds to the production of sub-50 fs (rms) electron bunch structure. The measurements demonstrate both the shot-to-shot stability of bunch parameters that are critical to THz emission (such as total charge and bunch length), as well as femtosecond synchronization among bunch, THz pulse, and laser beam.

van Tilborg, Jeroen; Schroeder, Carl; Filip, Catalin; Toth, Csaba; Geddes, Cameron; Fubiani, Gwenael; Esarey, Eric; Leemans, Wim

2011-06-17T23:59:59.000Z

199

Modeling of 10 GeV-1 TeV laser-plasma accelerators using Lorentz booster simulations  

SciTech Connect

Modeling of laser-plasma wakefield accelerators in an optimal frame of reference [J.-L. Vay, Phys. Rev. Lett. 98 130405 (2007)] allows direct and e#14;fficient full-scale modeling of deeply depleted and beam loaded laser-plasma stages of 10 GeV-1 TeV (parameters not computationally accessible otherwise). This verifies the scaling of plasma accelerators to very high energies and accurately models the laser evolution and the accelerated electron beam transverse dynamics and energy spread. Over 4, 5 and 6 orders of magnitude speedup is achieved for the modeling of 10 GeV, 100 GeV and 1 TeV class stages, respectively. Agreement at the percentage level is demonstrated between simulations using different frames of reference for a 0.1 GeV class stage. Obtaining these speedups and levels of accuracy was permitted by solutions for handling data input (in particular particle and laser beams injection) and output in a relativistically boosted frame of reference, as well as mitigation of a high-frequency instability that otherwise limits effectiveness.

Vay, J.-L.; Geddes, C.G.R.; Esarey, E.; Esarey, E.; Leemans, W.P.; Cormier-Michel, E.; Grote, D.P.

2011-12-01T23:59:59.000Z

200

Efficient Modeling of Laser-Plasma Accelerators with INF&RNO  

E-Print Network (OSTI)

in: Proc. 13th Advanced Accelerator Workshop, Santa Cruz,in: Proc. 13th Advanced Accelerator Workshop, Santa Cruz,in: Proc. 13th Advanced Accelerator Workshop, Santa Cruz,

Benedetti, C.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lab laser accelerator" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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201

Berkeley Lab  

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Smithsonian Features Early Recordings Enabled by Berkeley Lab Technology http:www.lbl.gov20150127smithsonian-features-early-recordings-enabled-by-berkeley-lab-technology...

202

Jefferson Lab | Jefferson Lab  

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News item slideshow News item slideshow Final Piece Final Piece Workers install a section of the pre-shower calorimeter, or PCAL, which is part of the CLAS12 detector package in Jefferson Lab's Experimental Hall B. The new equipment is being installed for the 12 GeV Upgrade project. <<< Installation of PCAL in Hall B. Upgraded Detector Upgraded Detector Work on the 12 GeV Upgrade project continues at Jefferson Lab. Shown here is the new CLAS12 detector in Experimental Hall B after the recent installation of the pre-shower calorimeter, or PCAL. <<< Installation work on Hall B detector. Neutron Stopper Neutron Stopper Jefferson Lab engineer Paul Brindza holds up samples of a new system of concrete products designed to stop neutrons and other particles from harming sensitive scientific computers and detectors. The new system was

203

INEX (integrated numerical experiment) simulations of the Los Alamos HIBAF (high-brightness accelerator free-electron laser) free-electron laser MOPA (master oscillator power amplifier) experiment  

SciTech Connect

We present results of Integrated Numerical Experiment (INEX) simulations of the performance of a 1-m untapered wiggler FEL oscillator driving a 2-m wiggler FEL amplifier for the new HIBAF (High-Brightness Accelerator Free-Electron Laser) facility at Los Alamos. INEX simulations utilize a numerically-generated electron micropulse, from ISIS/PARMELA calculations of the photoinjector/linac/beam transport system, in the 3-D FEL simulation code FELEX. 13 refs., 10 figs., 1 tab.

Goldstein, J.C.; Carlsten, B.E.; McVey, B.D.

1989-01-01T23:59:59.000Z

204

Electron diffraction using ultrafast electron bunches from a laser-wakefield accelerator at kHz repetition rate  

SciTech Connect

We show that electron bunches in the 50-100 keV range can be produced from a laser wakefield accelerator using 10 mJ, 35 fs laser pulses operating at 0.5 kHz. It is shown that using a solenoid magnetic lens, the electron bunch distribution can be shaped. The resulting transverse and longitudinal coherence is suitable for producing diffraction images from a polycrystalline 10 nm aluminum foil. The high repetition rate, the stability of the electron source, and the fact that its uncorrelated bunch duration is below 100 fs make this approach promising for the development of sub-100 fs ultrafast electron diffraction experiments.

He, Z.-H.; Thomas, A. G. R.; Nees, J. A.; Hou, B.; Krushelnick, K. [Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48106-2099 (United States)] [Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48106-2099 (United States); Beaurepaire, B.; Malka, V.; Faure, J. [Laboratoire d'Optique Appliquee, ENSTA-CNRS-Ecole Polytechnique, UMR 7639, 91761 Palaiseau (France)] [Laboratoire d'Optique Appliquee, ENSTA-CNRS-Ecole Polytechnique, UMR 7639, 91761 Palaiseau (France)

2013-02-11T23:59:59.000Z

205

Plasma wakefields driven by an incoherent combination of laser pulses: a path towards high-average power laser-plasma accelerators  

SciTech Connect

he wakefield generated in a plasma by incoherently combining a large number of low energy laser pulses (i.e.,without constraining the pulse phases) is studied analytically and by means of fully-self-consistent particle-in-cell simulations. The structure of the wakefield has been characterized and its amplitude compared with the amplitude of the wake generated by a single (coherent) laser pulse. We show that, in spite of the incoherent nature of the wakefield within the volume occupied by the laser pulses, behind this region the structure of the wakefield can be regular with an amplitude comparable or equal to that obtained from a single pulse with the same energy. Wake generation requires that the incoherent structure in the laser energy density produced by the combined pulses exists on a time scale short compared to the plasma period. Incoherent combination of multiple laser pulses may enable a technologically simpler path to high-repetition rate, high-average power laser-plasma accelerators and associated applications.

Benedetti, C.; Schroeder, C.B.; Esarey, E.; Leemans, W.P.

2014-05-01T23:59:59.000Z

206

Lab 12: Measurements Lab This lab introduces . . .  

E-Print Network (OSTI)

Lab 12: Measurements Lab Objectives This lab introduces . . . Materials 1) 2 Liter Bottle 2) Bicycle Pump 3) Rocket Fins 4) Water 5) Scale 6) Angle thingie Theory What is a Measurement? A measurement tells us about a quantity of something. For example, a measurement can inform us about how heavy

Wedeward, Kevin

207

Performance of solenoids versus quadrupoles in focusing and energy selection of laser accelerated protons  

Science Journals Connector (OSTI)

Using laser accelerated protons or ions for various applicationsfor example in particle therapy or short-pulse radiographic diagnosticsrequires an effective method of focusing and energy selection. We derive an analytical scaling for the performance of a solenoid compared with a doublet/triplet as function of the energy, which is confirmed by TRACEWIN simulations. Generally speaking, the two approaches are equivalent in focusing capability, if parameters are such that the solenoid length approximately equals its diameter. The scaling also shows that this is usually not the case above a few MeV; consequently, a solenoid needs to be pulsed or superconducting, whereas the quadrupoles can remain conventional. It is also important that the transmission of the triplet is found only 25% lower than that of the equivalent solenoid. Both systems are equally suitable for energy selection based on their chromatic effect as is shown using an initial distribution following the RPA simulation model by Yan etal. [Phys. Rev. Lett. 103, 135001 (2009].

Ingo Hofmann

2013-04-03T23:59:59.000Z

208

Improved spectral data unfolding for radiochromic film imaging spectroscopy of laser-accelerated proton beams  

SciTech Connect

An improved method to unfold the space-resolved proton energy distribution function of laser-accelerated proton beams using a layered, radiochromic film (RCF) detector stack has been developed. The method takes into account the reduced RCF response near the Bragg peak due to a high linear energy transfer (LET). This LET dependence of the active RCF layer has been measured, and published data have been re-interpreted to find a nonlinear saturation scaling of the RCF response with stopping power. Accounting for the LET effect increased the integrated particle yield by 25% after data unfolding. An iterative, analytical, space-resolved deconvolution of the RCF response functions from the measured dose was developed that does not rely on fitting. After the particle number unfold, three-dimensional interpolation is performed to determine the spatial proton beam distribution for proton energies in-between the RCF data points. Here, image morphing has been implemented as a novel interpolation method that takes into account the energy-dependent, changing beam topology.

Schollmeier, M.; Geissel, M.; Sefkow, A. B. [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)] [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States); Flippo, K. A. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2014-04-15T23:59:59.000Z

209

Dark defects in InGaAsP/InP double heterostructure lasers under accelerated aging  

SciTech Connect

Degradation modes due to dark defects under accelerated aging for InGaAsP/InP double heterostructure lasers are investigated by monitoring pulse threshold current, leak current, absorption coefficient, gain factor, and electroluminescence topograph. Most of the dark defects are dark spot defects (DSD's) and there are only few <100> dark line defects. At the initial stage of the degradation, these dark defects scarcely absorb the emitted light, and the reduction of gain factor causes the increase of pulse threshold current. After this stage, dark defects begin to act as absorber of the emitted light. The generation time of such DSD's strongly depends on the injected current density but only weakly on the junction temperature in the range of 25/sup 0/ to 250/sup 0/C. The activation energies for the generation time of the first dark spot defect and the growing speed of <100> dark line defects are estimated to be 0.16 and 0.2 eV, respectively.

Fukuda, M.; Wakita, K.; Iwane, G.

1983-03-01T23:59:59.000Z

210

Improvements to laser wakefield accelerated electron beam stability, divergence, and energy spread using three-dimensional printed two-stage gas cell targets  

SciTech Connect

High intensity, short pulse lasers can be used to accelerate electrons to ultra-relativistic energies via laser wakefield acceleration (LWFA) [T. Tajima and J. M. Dawson, Phys. Rev. Lett. 43, 267 (1979)]. Recently, it was shown that separating the injection and acceleration processes into two distinct stages could prove beneficial in obtaining stable, high energy electron beams [Gonsalves et al., Nat. Phys. 7, 862 (2011); Liu et al., Phys. Rev. Lett. 107, 035001 (2011); Pollock et al., Phys. Rev. Lett. 107, 045001 (2011)]. Here, we use a stereolithography based 3D printer to produce two-stage gas targets for LWFA experiments on the HERCULES laser system at the University of Michigan. We demonstrate substantial improvements to the divergence, pointing stability, and energy spread of a laser wakefield accelerated electron beam compared with a single-stage gas cell or gas jet target.

Vargas, M.; Schumaker, W.; He, Z.-H.; Zhao, Z.; Behm, K.; Chvykov, V.; Hou, B.; Krushelnick, K.; Maksimchuk, A.; Yanovsky, V.; Thomas, A. G. R., E-mail: agrt@umich.edu [Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109 (United States)

2014-04-28T23:59:59.000Z

211

Argonne Accelerator Institute  

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

Useful Links Useful Links Argonne National Laboratory Accelerator Sites Conferences Advanced Photon Source (APS) Argonne Wakefield Accelerator (AWA) Argonne Tandem Linear Accelerator System (ATLAS) High Energy Physics Division RIA (????) Link to JACoW (Joint Accelerator Conferences Website) Fermi National Accelerator Laboratory Fermilab-Argonne Collaboration Accelerator Physics Center Workshops Other Accelerator Institutes Energy Recovering Linacs Center for Advance Studies of Accelerators (Jefferson Labs) Center for Beam Physics (LBNL) Accelerator Test Facility (BNL) The Cockcroft Institute (Daresbury, UK) John Adams Institute (Rutherford, UK) ERL2009 to be held at Cornell ERL2007 ERL2005 DOE Laboratory with Accelerators Fermilab Stanford Linear Accelerator Center Brookhaven National Laboratory

212

Compression and acceleration of electron bunches to high energies in the interference field of intense laser pulses with tilted amplitude fronts: concept and modelling  

SciTech Connect

A new concept of accelerating electrons by laser radiation is proposed, namely, direct acceleration by a laser field under the conditions of interference of several relativistic-intensity laser pulses with amplitude fronts tilted by the angle 45 Degree-Sign with respect to the phase fronts. Due to such interference the traps moving with the speed of light arise that capture the electrons, produced in the process of ionisation of low-density gas by the same laser radiation. The modelling on the basis of solving the relativistic Newton equation with the appropriate Lorenz force shows that these traps, moving in space, successively collect electrons from the target, compress the resulting electron ensemble in all directions up to the dimensions smaller than the wavelength of the laser radiation and accelerate it up to the energies of the order of a few GeV per electron. (extreme light fields and their applications)

Korobkin, V V; Romanovsky, Mikhail Yu; Trofimov, V A; Shiryaev, O B [A M Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2013-03-31T23:59:59.000Z

213

Jefferson Lab Leadership Council - Dr. Andrew Hutton  

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centered at Stanford National Accelerator Facility involving the construction of a X-ray Free Electron Laser powered by a 4 GeV continuous wave superconducting accelerator....

214

1997 - 04 | Jefferson Lab  

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

April 1997 Sun, 04201997 - 11:00pm Free-Electron Lasers for U.S. Industry (Science & Technology) Thu, 04171997 - 11:00pm Accelerating Into Physics (Daily Press) Mon, 04071997...

215

A threshold for laser-driven linear particle acceleration in unbounded vacuum  

E-Print Network (OSTI)

We hypothesize that a charged particle in unbounded vacuum can be substantially accelerated by a force linear in the electric field of a propagating electromagnetic wave only if the accelerating field is capable of bringing ...

Wong, Liang Jie

2011-01-01T23:59:59.000Z

216

Employee Relations | Jefferson Lab  

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a cryomodule in Jefferson Lab's accelerator. A D D I T I O N A L L I N K S: Brochures Posters Strategic Plan 12 GeV TEDF Photos top-right bottom-left-corner bottom-right-corner...

217

ELECTRON INJECTION INTO CYCLIC ACCELERATOR USING  

E-Print Network (OSTI)

ELECTRON INJECTION INTO CYCLIC ACCELERATOR USING LASER WAKEFIELD ACCELERATION Ya. V. Getmanov, O. A acceleration #12;Storage ring with laser injection CYCLIC ACCELERATOR RF Electron injection The LWFA beam ­ accelerating light, 5 ­ accelerated electrons, 6 ­fast kicker - + accelerating laser pulse evaporatinglaser

218

Theory and numerical modeling of the accelerated expansion of laser-ablated materials near a solid surface  

Science Journals Connector (OSTI)

A self-similar theory and numerical hydrodynamic modeling is developed to investigate the effects of dynamic source and partial ionization on the acceleration of the unsteady expansion of laser-ablated material near a solid target surface. The dynamic source effect accelerates the expansion in the direction perpendicular to the target surface, while the dynamic partial ionization effect accelerates the expansion in all directions. The vaporized material during laser ablation provides a nonadiabatic dynamic source at the target surface into the unsteady expanding fluid. For studying the dynamic source effect, the self-similar theory begins with an assumed profile of plume velocity, u=v/vm=?+(1-?)?, where vm is the maximum expansion velocity, ? is a constant, and ?=x/vmt. The resultant profiles of plume density and plume temperature are derived. The relations obtained from the conservations of mass, momentum, and energy, respectively, all show that the maximum expansion velocity is inversely proportional to ?, where 1-? is the slope of plume velocity profile. The numerical hydrodynamic simulation is performed with the Rusanov method and the Newton Raphson method. The profiles and scalings obtained from numerical hydrodynamic modeling are in good agreement with the theory. The dynamic partial ionization requires ionization energy from the heat at the expansion front, and thus reduces the increase of front temperature. The reduction of thermal motion would increase the flow velocity to conserve the momentum. This dynamic partial ionization effect is studied with the numerical hydrodynamic simulation including the Saha equation. With these effects, ? is reduced from its value of conventional free expansion. This reduction on ? increases the flow velocity slope, decreases the flow velocity near the surface, and reduces the thermal motion of plume, such that the maximum expansion velocity is significantly increased over that found from conventional models. The result may provide an explanation for experimental observations of high-expansion front velocities even at low-laser fluence.

K. R. Chen; T. C. King; J. H. Hes; J. N. Leboeuf; D. B. Geohegan; R. F. Wood; A. A. Puretzky; J. M. Donato

1999-09-15T23:59:59.000Z

219

Generation of high-quality mega-electron volt proton beams with intense-laser-driven nanotube accelerator  

SciTech Connect

An ion acceleration scheme using carbon nanotubes (CNTs) is proposed, in which embedded fragments of low-Z materials are irradiated by an ultrashort intense laser to eject substantial numbers of electrons. Due to the resultant characteristic electrostatic field, the nanotube and embedded materials play the roles of the barrel and bullets of a gun, respectively, to produce highly collimated and quasimonoenergetic ion beams. Three-dimensional particle simulations, that take all the two-body Coulomb interactions into account, demonstrate generation of quasimonoenergetic MeV-order proton beams using nanometer-size CNT under a super-intense electrostatic field {approx}10{sup 14} V m{sup -1}.

Murakami, M. [Institute of Laser Engineering, Osaka University, Osaka 565-0871 (Japan)] [Institute of Laser Engineering, Osaka University, Osaka 565-0871 (Japan); Tanaka, M. [Department of Engineering, Chubu University, Aichi 487-8501 (Japan)] [Department of Engineering, Chubu University, Aichi 487-8501 (Japan)

2013-04-22T23:59:59.000Z

220

Laser acceleration of quasi-monoenergetic MeV ion beams  

Science Journals Connector (OSTI)

... S. et al. Electron, photon, and ion beams from the relativistic interaction of Petawatt laser pulses with solid targets. Phys. Plasmas 5, 20762082 (2000)

B. M. Hegelich; B. J. Albright; J. Cobble; K. Flippo; S. Letzring; M. Paffett; H. Ruhl; J. Schreiber; R. K. Schulze; J. C. Fernndez

2006-01-26T23:59:59.000Z

Note: This page contains sample records for the topic "lab laser accelerator" 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

Wavefront-sensor-based electron density measurements for laser-plasma accelerators  

E-Print Network (OSTI)

After imaging the plasma to a primary focus shortly afterfocus was 1 mm above the nozzle. The laser pulse excited a plasma

Plateau, Guillaume

2010-01-01T23:59:59.000Z

222

Studies of Intense Laser Propagation in Channels for Extended Length Plasma Accelerators  

E-Print Network (OSTI)

. Wurtele, G. Shvets Massachusetts Institute of Technology, Cambridge, MA 02139 Abstract Progress profile. That is, n0(y) = 0 for y a In this section we consider the more that the wakefield accelerator scheme can be effective, but only if the beam load is placed on the first accelerating

Wurtele, Jonathan

223

Berkeley Lab  

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

Berkeley Lab masthead U.S. Department of Energy logo Phone Book Jobs Search sun abstract Helios logo Overview Goals & Challenges Publications Research Highlights In the News SERC...

224

Berkeley Lab  

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

Due to Laboratory budget cuts Berkeley Lab Learning Institute (BLI) no longer sponsors in-house training and workshops. This website is now a resource for supervisors and...

225

THE BNL ASTD FIELD LAB - NEAR - REAL - TIME CHARACTERIZATION OF BNL STOCKPILED SOILS TO ACCELERATE COMPLETION OF THE EM CHEMICAL HOLES PROJECT.  

SciTech Connect

As of October 2001, approximately 7,000 yd{sup 3} of stockpiled soil remained at Brookhaven National Laboratory (BNL) after the remediation of the BNL Chemical/Animal/Glass Pits disposal area. The soils were originally contaminated with radioactive materials and heavy metals, depending on what materials had been interred in the pits, and how the pits were excavated. During the 1997 removal action, the more hazardous/radioactive materials were segregated, along with, chemical liquids and solids, animal carcasses, intact gas cylinders, and a large quantity of metal and glass debris. Nearly all of these materials have been disposed of. In order to ensure that all debris was removed and to characterize the large quantity of heterogeneous soil, BNL initiated an extended sorting, segregation, and characterization project directed at the remaining soil stockpiles. The project was co-funded by the Department of Energy Environmental Management Office (DOE EM) through the BNL Environmental Restoration program and through the DOE EM Office of Science and Technology Accelerated Site Technology Deployment (ASTD) program. The focus was to remove any non-conforming items, and to assure that mercury and radioactive contaminant levels were within acceptable limits for disposal as low-level radioactive waste. Soils with mercury concentrations above allowable levels would be separated for disposal as mixed waste. Sorting and segregation were conducted simultaneously. Large stockpiles (ranging from 150 to 1,200 yd{sup 3}) were subdivided into manageable 20 yd{sup 3} units after powered vibratory screening. The 1/2-inch screen removed almost all non-conforming items (plus some gravel). Non-conforming items were separated for further characterization. Soil that passed through the screen was also visually inspected before being moved to a 20 yd{sup 3} ''subpile.'' Eight samples from each subpile were collected after establishing a grid of four quadrants: north, east, south and west, and two layers: top and bottom. Field personnel collected eight 100-gram samples, plus quality assurance (QA) duplicates for chemical analysis, and a 1-liter jar of material for gamma spectroscopy. After analyses were completed and reviewed, the stockpiles were reconstructed for later disposal as discrete entities within a disposal site profile. A field lab was set up in a trailer close to the stockpile site, equipped with instrumentation to test for mercury, RCRA metals, and gamma spectroscopy, and a tumbler for carrying out a modified Toxicity Characteristic Leaching Procedure (TCLP) protocol. Chemical analysis included X-ray fluorescence (XRF) to screen for high (>260 ppm) total mercury concentrations, and modified TCLP tests to verify that the soils were not RCRA hazardous. The modified TCLP tests were 1/10th scale, to minimize secondary (leachate) waste and maximize tumbler capacity and sampler throughput. TCLP leachate analysis was accomplished using a Milestone Direct Mercury Analyzer (DMA80). Gamma spectroscopy provided added assurance of previously measured Am-241, Cs-137, and Co-60 contamination levels.

BOWERMAN,B.S.; ADAMS,J.W.; HEISER,J.; KALB,P.D.; LOCKWOOD,A.

2003-04-01T23:59:59.000Z

226

Design Considerations for Plasma Accelerators Driven by Lasers or Particle Beams  

E-Print Network (OSTI)

al. , Phys. Rev. ST Accel. Beams, submitted, (2010). 15. A.D . Kimura, Phys. Rev. ST Accel. Beams 13, 24. C . Jing, A .Driven by Lasers or Particle Beams C . B . Schroeder, E .

Schroeder, C. B.

2011-01-01T23:59:59.000Z

227

Berkeley Lab  

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

Search 29 Breakthroughs Search 29 Breakthroughs At Berkeley Lab, we've: Discovered sixteen elements. The periodic table would be smaller without Berkeley Lab. Among the Lab's handiwork is an instrumental role in the discovery of technetium-99, which has revolutionized the field of medical imaging. There's also americium, which is widely used in smoke detectors. Identified good and bad cholesterol. The battle against heart disease received a boost in the 1960s when Lab research unveiled the good and bad sides of cholesterol. Today, diagnostic tests that detect both types of cholesterol save lives. Big Bang Confirmed the Big Bang, and discovered dark energy. Lab detectors aboard a NASA satellite revealed the birth of the galaxies in the echoes of the Big Bang. And dark energy - the mysterious something

228

OMEGA EP Laser Dedication Movie - Laboratory for Laser Energetics  

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Dedication Movie - Laboratory for Laser Energetics Laboratory for Laser Energetics Logo Search Home Around the Lab Past Issues Past Quick Shots About Office of the Director Map to...

229

Review of multi-dimensional large-scale kinetic simulation and physics validation of ion acceleration in relativistic laser-matter interaction  

SciTech Connect

Two new experimental technologies enabled realization of Break-out afterburner (BOA) - High quality Trident laser and free-standing C nm-targets. VPIC is an powerful tool for fundamental research of relativistic laser-matter interaction. Predictions from VPIC are validated - Novel BOA and Solitary ion acceleration mechanisms. VPIC is a fully explicit Particle In Cell (PIC) code: models plasma as billions of macro-particles moving on a computational mesh. VPIC particle advance (which typically dominates computation) has been optimized extensively for many different supercomputers. Laser-driven ions lead to realization promising applications - Ion-based fast ignition; active interrogation, hadron therapy.

Wu, Hui-Chun [Los Alamos National Laboratory; Hegelich, B.M. [Los Alamos National Laboratory; Fernandez, J.C. [Los Alamos National Laboratory; Shah, R.C. [Los Alamos National Laboratory; Palaniyappan, S. [Los Alamos National Laboratory; Jung, D. [Los Alamos National Laboratory; Yin, L [Los Alamos National Laboratory; Albright, B.J. [Los Alamos National Laboratory; Bowers, K. [Guest Scientist of XCP-6; Huang, C. [Los Alamos National Laboratory; Kwan, T.J. [Los Alamos National Laboratory

2012-06-19T23:59:59.000Z

230

Accelerated alpha-decay of 232U isotope achieved by exposure of its aqueous solution with gold nanoparticles to laser radiation  

E-Print Network (OSTI)

Experimental results are presented on laser-induced accelerated alpha-decay of Uranium-232 nuclei under laser exposure of Au nanoparticles in aqueous solutions of its salt. It is demonstrated that the decrease of alpha-activity strongly depends on the peak intensity of the laser radiation in the liquid and is highest at several terawatt per square centimeter. The decrease of alpha-activity of the exposed solutions is accompanied by the deviation of gamma-activities of daughter nuclides of Uranium-232 from their equilibrium values. Possible mechanisms of the laser influence on the alpha-activity are discussed on the basis of the amplification of the electric field of laser wave on metallic nanoparticles.

A. V. Simakin; G. A. Shafeev

2011-12-29T23:59:59.000Z

231

The Lab  

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The Lab The Lab The Lab Photo Gallery Images of the Lab's world-class facilities and buildings. Click thumbnails to enlarge. Photos arranged by most recent first, horizontal formats before vertical. See Flickr for more sizes and details. LANL buildings at Technical Area 3 LANL buildings at Technical Area 3 Technical Area 3 early morning Technical Area 3 early morning Aerial View of Neutron Science Center Aerial View of Neutron Science Center Aerial View of TA-15 - 1 Aerial View of TA-15 - 1 Aerial View of Los Alamos National Laboratory Aerial View of Los Alamos National Laboratory Aerial View of Los Alamos National Laboratory - 1 Aerial View of Los Alamos National Laboratory - 1 Aerial View of Los Alamos National Laboratory - 3 Aerial View of Los Alamos National Laboratory - 3

232

The affect of erbium hydride on the conversion efficience to accelerated protons from ultra-shsort pulse laser irradiated foils  

SciTech Connect

This thesis work explores, experimentally, the potential gains in the conversion efficiency from ultra-intense laser light to proton beams using erbium hydride coatings. For years, it has been known that contaminants at the rear surface of an ultra-intense laser irradiated thin foil will be accelerated to multi-MeV. Inertial Confinement Fusion fast ignition using proton beams as the igniter source requires of about 10{sup 16} protons with an average energy of about 3MeV. This is far more than the 10{sup 12} protons available in the contaminant layer. Target designs must include some form of a hydrogen rich coating that can be made thick enough to support the beam requirements of fast ignition. Work with computer simulations of thin foils suggest the atomic mass of the non-hydrogen atoms in the surface layer has a strong affect on the conversion efficiency to protons. For example, the 167amu erbium atoms will take less energy away from the proton beam than a coating using carbon with a mass of 12amu. A pure hydrogen coating would be ideal, but technologically is not feasible at this time. In the experiments performed for my thesis, ErH{sub 3} coatings on 5 {micro}m gold foils are compared with typical contaminants which are approximately equivalent to CH{sub 1.7}. It will be shown that there was a factor of 1.25 {+-} 0.19 improvement in the conversion efficiency for protons above 3MeV using erbium hydride using the Callisto laser. Callisto is a 10J per pulse, 800nm wavelength laser with a pulse duration of 200fs and can be focused to a peak intensity of about 5 x 10{sup 19}W/cm{sup 2}. The total number of protons from either target type was on the order of 10{sup 10}. Furthermore, the same experiment was performed on the Titan laser, which has a 500fs pulse duration, 150J of energy and can be focused to about 3 x 10{sup 20} W/cm{sup 2}. In this experiment 10{sup 12} protons were seen from both erbium hydride and contaminants on 14 {micro} m gold foils. Significant improvements were also observed but possibly because of the depletion of hydrogen in the contaminant layer case.

Offermann, D

2008-09-04T23:59:59.000Z

233

Supercomputing and Advanced Computing at the National Labs  

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

supercomputing 1000 Independence Ave. SW Washington DC supercomputing 1000 Independence Ave. SW Washington DC 20585 202-586-5000 en Lab Breakthrough: Supercomputing Power to Accelerate Fossil Energy Research http://energy.gov/articles/lab-breakthrough-supercomputing-power-accelerate-fossil-energy-research lab-breakthrough-supercomputing-power-accelerate-fossil-energy-research" class="title-link">Lab Breakthrough: Supercomputing Power to Accelerate Fossil Energy Research

234

Delivering Innovations That Create Jobs: National Lab Ignites...  

Energy Savers (EERE)

agreements and license agreements. The program intends to accelerate the rate of technology transfer out of the Lab and into business. LLNL is partnering with the Keiretsu Forum,...

235

Swapan Chattopadhyay Named as AAAS Fellow | Jefferson Lab  

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

hi-resolution image Swapan Chattopadhyay, Jefferson Lab's Associate Director for Accelerators, now a 2005 Fellow of the American Association for the Advancement of Science...

236

Jefferson Lab Fall Lecture: Exploring Our World With Particle...  

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

Fall Lecture: Exploring Our World With Particle Accelerators NEWPORT NEWS, Va., Nov. 9, 2010 - Jefferson Lab's 2010 Fall Science Lecture Series concludes on Tuesday, Nov. 23, with...

237

Recent News from the National Labs | Department of Energy  

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

5, 2011 5, 2011 The Truth about Clean Energy Jobs Director of Public Affairs Dan Leistikow details how the Loan Program will support 60K American jobs and save 300 million gallons of gasoline a year. September 14, 2011 Rich Earley, CEO of Clean Urban Energy presents at Clean Energy Trust's Clean Energy Challenge in March 2011 | Courtesy of Clean Energy Trust Innovation Ecosystems Spur Rapid Growth for Startups, Entrepreneurs To accelerate high-growth entrepreneurship across the nation and move cutting-edge clean energy technologies from the lab to the marketplace, a year ago the Energy Department launched the Innovation Ecosystem Initiative. 

 September 12, 2011 A view of a cryogenically cooled National Ignition Facility (NIF) target as "seen" by the laser through the hohlraum's laser entrance hole. | Photo courtesy of Lawrence Livermore National Laboratory.

238

Accelerator Test Facility  

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

Director ATF, Accelerator External program committee W. Leemans, Chair M. Woodle Engineer Mechanical M. Montemagno Engineer Electrical I. Pogorelsky, Physicist, Laser P. Jacob...

239

Generation of quasi-monochromatic beams of accelerated electrons during interaction of weak-contrast intense femtosecond laser radiation with a metal-foil edge  

SciTech Connect

The formation of monoenergetic beams of accelerated electrons by focusing femtosecond laser radiation with an intensity of 2 Multiplication-Sign 10{sup 17} W cm{sup -2} onto an edge of aluminium foil has been experimentally demonstrated. The electrons had energy distributions peaking in the range from 0.2 to 0.8 MeV and an energy spread less than 20 %. The acceleration mechanism related to the generation of a plasma wave as a result of self-modulation instability of the laser pulse in the subcritical plasma formed the prepulse of the laser system (arriving 10 ns before the main pulse) is considered. Onedimensional PIC simulation of the interaction between the laser radiation and plasma with a concentration of 5 Multiplication-Sign 10{sup 19} cm{sup -3} showed that effective excitation of a plasma wave, as well as the trapping and acceleration of the electron beam with an energy on the order of 1 MeV, may occur in the presence of inhomogeneities in the density at the plasma boundary and in the temporal shape of the beam. (extreme light fields and their applications)

Malkov, Yu A; Stepanov, A N; Yashunin, D A; Pugachev, L P; Levashov, P R; Andreev, N E; Andreev, Aleksandr A

2013-03-31T23:59:59.000Z

240

Berkeley Lab  

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Berkeley Berkeley The Lab at a Glance 13 Nobel Prizes $700 million Annual contribution to local economy $1.6 billion Impact on U.S. economy 4,200 Employees, including: 1,685 Scientists, engineers, and faculty 475 Postdoctoral fellows 560 Undergraduate and graduate student employees Lab Budget FY 2011 $836 million $735 million + $101 million (ARRA) FY 2010 $811 million $707 million + $104 million (ARRA) FY 2009 $648 million $637 million + $ 11 million (ARRA) FY 2008 $590 million (ARRA = American Recovery and Reinvestment Act) Berkeley Lab hosts six major national user facilities that attract more than 7,000 visitors a year to conduct joint research, run experiments, and analyze sample materials: Advanced Light Source Energy Sciences Network Joint Genome Institute

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241

BERKELEY LAB  

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

Bringing Science Solutions to the World Bringing Science Solutions to the World lbl.gov Lawrence Berkeley National Laboratory's science is a global enterprise. From the Lab's site in the hills overlooking the University of California Berkeley campus, to locations across the continent and around the world, Berkeley Lab scientists are working at the frontiers of knowledge to better understand our universe and to address the challenges facing our nation and our planet. Understanding the Effects of the Gulf Oil Spill In the aftermath of the explosion of BP's Deepwater Horizon drilling rig in the Gulf of Mexico, a dispersed oil plume was formed at a depth between 3,600 and 4,000 feet, extending some 10 miles out from the wellhead. An intensive study by Berkeley Lab scientists, using a DNA-analytical tool they developed

242

Berkeley Lab  

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

INDIA BANGLADESH CHINA DAYA BAY CHINA RUSSIA SIBERIA JAPAN SAMOA HAWAII INDIA BANGLADESH CHINA DAYA BAY CHINA RUSSIA SIBERIA JAPAN SAMOA HAWAII SOUTH POLE ANTARCTICA NEW MEXICO SOUTH DAKOTA TEXAS GULF OF MEXICO NEW YORK PUERTO RICO AMAZON RAIN FOREST CANARY ISLANDS SWITZERLAND ETHIOPIA JOHANNESBURG ERITREA Lawrence Berkeley National Laboratory's science is a global enterprise. From the Lab's site in the hills overlooking the University of California Berkeley campus, to locations across the continent and around the world, Berkeley Lab scientists are working at the frontiers of knowledge to better understand our universe and to address the challenges facing our nation and our planet. Roll your mouse across the map to see how the Lab is making a difference. gulf-oil-spill_2 Understanding the Effects of the Gulf Oil Spill / Gulf of Mexico

243

Omega Laser Facility - Laboratory for Laser Energetics  

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- Laboratory for Laser Energetics Laboratory for Laser Energetics Logo Search Home Around the Lab Past Issues Past Quick Shots About Office of the Director Map to LLE LLE Tours LLE...

244

OMEGA Laser - Laboratory for Laser Energetics  

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- Laboratory for Laser Energetics Laboratory for Laser Energetics Logo Search Home Around the Lab Past Issues Past Quick Shots About Office of the Director Map to LLE LLE Tours LLE...

245

OMEGA Laser Drivers - Laboratory for Laser Energetics  

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Drivers - Laboratory for Laser Energetics Laboratory for Laser Energetics Logo Search Home Around the Lab Past Issues Past Quick Shots About Office of the Director Map to LLE LLE...

246

Study of electron trapping by a transversely ellipsoidal bubble in the laser wake-field acceleration  

SciTech Connect

We present electron trapping in an ellipsoidal bubble which is not well explained by the spherical bubble model by [Kostyukov et al., Phys. Rev. Lett. 103, 175003 (2009)]. The formation of an ellipsoidal bubble, which is elongated transversely, frequently occurs when the spot size of the laser pulse is large compared to the plasma wavelength. First, we introduce the relation between the bubble size and the field slope inside the bubble in longitudinal and transverse directions. Then, we provide an ellipsoidal model of the bubble potential and investigate the electron trapping condition by numerical integration of the equations of motion. We found that the ellipsoidal model gives a significantly less restrictive trapping condition than that of the spherical bubble model. The trapping condition is compared with three-dimensional particle-in-cell simulations and the electron trajectory in test potential simulations.

Cho, Myung-Hoon [School of Natural Science, UNIST, BanYeon-Ri 100, Ulju-gun, Ulsan 689-798 (Korea, Republic of)] [School of Natural Science, UNIST, BanYeon-Ri 100, Ulju-gun, Ulsan 689-798 (Korea, Republic of); Kim, Young-Kuk; Hur, Min Sup [School of Electrical and Computer Engineering, UNIST, BanYeon-Ri 100, Ulju-gun, Ulsan 689-798 (Korea, Republic of)] [School of Electrical and Computer Engineering, UNIST, BanYeon-Ri 100, Ulju-gun, Ulsan 689-798 (Korea, Republic of)

2013-09-15T23:59:59.000Z

247

BNL | Accelerator Test Facility  

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Accelerator Test Facility Accelerator Test Facility Home Core Capabilities Photoinjector S-Band Linac Laser Systems CO2 Laser Nd:Yag Laser Beamlines Beamline Simulation Data Beamline Parameters Beam Diagnostics Detectors Beam Schedule Operations Resources Fact Sheet (.pdf) Image Library Upgrade Proposal (.pdf) Publications ES&H Experiment Start-up ATF Handbook Laser Safety Collider-Accelerator Dept. C-AD ES&H Resources Staff Users' Place Apply for Access ATF photo ATF photo ATF photo ATF photo ATF photo A user facility for advanced accelerator research The Brookhaven Accelerator Test Facility (ATF) is a proposal driven, steering committee reviewed facility that provides users with high-brightness electron- and laser-beams. The ATF pioneered the concept of a user facility for studying complex properties of modern accelerators and

248

A new method of measuring the poloidal magnetic and radial electric fields in a tokamak using a laser-accelerated ion-beam trace probe  

SciTech Connect

Both the poloidal magnetic field (B{sub p}) and radial electric field (E{sub r}) are significant in magnetic confinement devices. In this paper, a new method was proposed to diagnose both B{sub p} and E{sub r} at the same time, which was named Laser-accelerated Ion-beam Trace Probe (LITP). This method based on the laser-accelerated ion beam, which has three properties: large energy spread, short pulse lengths, and multiple charge states. LITP can provide the 1D profiles, or 2D images of both B{sub p} and E{sub r}. In this paper, we present the basic principle and some preliminary theoretical results.

Yang, X. Y.; Chen, Y. H.; Lin, C.; Wang, X. G.; Xiao, C. J., E-mail: cjxiao@pku.edu.cn [State Key Labaratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871 (China); Wang, L. [Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190 (China); Xu, M. [Center for Fusion Science of Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041 (China)

2014-11-15T23:59:59.000Z

249

13S C I D A C R E V I E W S U M M E R 2 0 0 9 W W W . S C I D A C R E V I E W . O R G LASER P LASM A PART ICLE ACCELERATORS  

E-Print Network (OSTI)

A PART ICLE ACCELERATORS Compared to conventional particle accelerators, plasmas can sustain accelerating simulations provide physical insight into the development of next-generation accelerators that use laser-driven plasma waves. These plasma- based accelerators offer a path to more compact, ultra-fast particle

Knowles, David William

250

OMEGA Amplifiers - Laboratory for Laser Energetics  

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Amplifiers - Laboratory for Laser Energetics Laboratory for Laser Energetics Logo Search Home Around the Lab Past Issues Past Quick Shots About Office of the Director Map to LLE...

251

OMEGA EP Construction - Laboratory for Laser Energetics  

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Construction - Laboratory for Laser Energetics Laboratory for Laser Energetics Logo Search Home Around the Lab Past Issues Past Quick Shots About Office of the Director Map to LLE...

252

OMEGA Experimental Systems - Laboratory for Laser Energetics  

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Experimental Systems - Laboratory for Laser Energetics Laboratory for Laser Energetics Logo Search Home Around the Lab Past Issues Past Quick Shots About Office of the Director Map...

253

6.1-MV, 0.79-MA laser-triggered gas switch for multimodule, multiterawatt pulsed-power accelerators  

Science Journals Connector (OSTI)

A 6.1-MV, 0.79-MA laser-triggered gas switch (LTGS) is used to synchronize the 36 modules of the Z machine at Sandia National Laboratories. Each module includes one switch, which serves as the last command-fired switch of the module, and hence is used to determine the time at which each module electrically closes relative to the other modules. The switch is ?81-cm in length, ?45-cm in diameter, and is immersed in mineral oil. The outer switch envelope consists of six corrugated monomer-cast acrylic insulators and five contoured stainless-steel rings. The trigger electrodes are fabricated from copper-infused tungsten. The switch is pressurized with several atmospheres of sulfur hexafluoride (SF6), which is turbulently purged within 2seconds after every shot. Each switch is powered from a 6-MV, 0.78-MJ Marx generator which pulse charges a 24-nF intermediate-store water capacitor in 1.4-?s. Closure of the switch allows power to flow into pulse-forming transmission lines. The power pulse is subsequently compressed by water switches, which results in a total accelerator output power in excess of 70-TW. A previous version of the LTGS performed exceptionally at a 5.4-MV, 0.7-MA level on an engineering test module used for switch development. It exhibited a 1-? jitter of ?5??ns, a prefire and flashover rate less than 0.1%, and a lifetime in excess of 150 shots. When installed on the Z accelerator, however, the switch exhibited a prefire probability of ?3%, a flashover probability of ?7%, and a 15-ns jitter. The difference in performance is attributed to several factors such as higher total charge transfer, exposure to more debris, and more stressful dynamic mechanical loading upon machine discharge. Under these conditions, the replacement lifetime was less than ten shots. Since refurbishment of Z in October2007, there have been three LTGS design iterations to improve the performance at 6.1-MV. The most recent design exhibits a prefire rate of less than 0.1%, a flashover rate of ?0.2%, a single switch jitter of ?6-ns, and a lifetime of greater than 75 shots. Modifications to achieve the performance improvement are detailed in this article.

K. R. LeChien; W. A. Stygar; M. E. Savage; P. E. Wakeland; V. Anaya; D. S. Artery; M. J. Baremore; D. E. Bliss; R. Chavez; G. D. Coombs; J. P. Corley; P. A. Jones; A. K. Kipp; B. A. Lewis; J. A. Lott; J. J. Lynch; G. R. McKee; S. D. Ploor; K. R. Prestwich; S. A. Roznowski; D. C. Spencer; S. D. White; J. R. Woodworth

2010-03-24T23:59:59.000Z

254

Stratospheric background aerosol and polar cloud observations by laser backscattersonde within the framework  

E-Print Network (OSTI)

'Atmosfera'' launched nine laser backscattersondes (LABS) on board stratospheric balloons to make observations

255

Application of Plasma Waveguides to High Energy Accelerators  

SciTech Connect

The eventual success of laser-plasma based acceleration schemes for high-energy particle physics will require the focusing and stable guiding of short intense laser pulses in reproducible plasma channels. For this goal to be realized, many scientific issues need to be addressed. These issues include an understanding of the basic physics of, and an exploration of various schemes for, plasma channel formation. In addition, the coupling of intense laser pulses to these channels and the stable propagation of pulses in the channels require study. Finally, new theoretical and computational tools need to be developed to aid in the design and analysis of experiments and future accelerators. Here we propose a 3-year renewal of our combined theoretical and experimental program on the applications of plasma waveguides to high-energy accelerators. During the past grant period we have made a number of significant advances in the science of laser-plasma based acceleration. We pioneered the development of clustered gases as a new highly efficient medium for plasma channel formation. Our contributions here include theoretical and experimental studies of the physics of cluster ionization, heating, explosion, and channel formation. We have demonstrated for the first time the generation of and guiding in a corrugated plasma waveguide. The fine structure demonstrated in these guides is only possible with cluster jet heating by lasers. The corrugated guide is a slow wave structure operable at arbitrarily high laser intensities, allowing direct laser acceleration, a process we have explored in detail with simulations. The development of these guides opens the possibility of direct laser acceleration, a true miniature analogue of the SLAC RF-based accelerator. Our theoretical studies during this period have also contributed to the further development of the simulation codes, Wake and QuickPIC, which can be used for both laser driven and beam driven plasma based acceleration schemes. We will continue our development of advanced simulation tools by modifying the QuickPIC algorithm to allow for the simulation of plasma particle pick-up by the wake fields. We have also performed extensive simulations of plasma slow wave structures for efficient THz generation by guided laser beams or accelerated electron beams. We will pursue experimental studies of direct laser acceleration, and THz generation by two methods, ponderomotive-induced THz polarization, and THz radiation by laser accelerated electron beams. We also plan to study both conventional and corrugated plasma channels using our new 30 TW in our new lab facilities. We will investigate production of very long hydrogen plasma waveguides (5 cm). We will study guiding at increasing power levels through the onset of laser-induced cavitation (bubble regime) to assess the role played by the preformed channel. Experiments in direct acceleration will be performed, using laser plasma wakefields as the electron injector. Finally, we will use 2-colour ionization of gases as a high frequency THz source (<60 THz) in order for femtosecond measurements of low plasma densities in waveguides and beams.

Milchberg, Howard M

2013-03-30T23:59:59.000Z

256

Optically pulsed electron accelerator  

DOE Patents (OSTI)

An optically pulsed electron accelerator can be used as an injector for a free electron laser and comprises a pulsed light source, such as a laser, for providing discrete incident light pulses. A photoemissive electron source emits electron bursts having the same duration as the incident light pulses when impinged upon by same. The photoemissive electron source is located on an inside wall of a radiofrequency-powered accelerator cell which accelerates the electron burst emitted by the photoemissive electron source.

Fraser, J.S.; Sheffield, R.L.

1985-05-20T23:59:59.000Z

257

Optically pulsed electron accelerator  

DOE Patents (OSTI)

An optically pulsed electron accelerator can be used as an injector for a free electron laser and comprises a pulsed light source, such as a laser, for providing discrete incident light pulses. A photoemissive electron source emits electron bursts having the same duration as the incident light pulses when impinged upon by same. The photoemissive electron source is located on an inside wall of a radio frequency powered accelerator cell which accelerates the electron burst emitted by the photoemissive electron source.

Fraser, John S. (Los Alamos, NM); Sheffield, Richard L. (Los Alamos, NM)

1987-01-01T23:59:59.000Z

258

3-D particle-in-cell simulations for quasi-phase matched direct laser electron acceleration in density-modulated plasma waveguides  

E-Print Network (OSTI)

Quasi-phase matched direct laser acceleration (DLA) of electrons can be realized with guided, radially polarized laser pulses in density-modulated plasma waveguides. A 3-D particle-in-cell model has been developed to describe the interactions among the laser field, injected electrons, and the background plasma in the DLA process. Simulations have been conducted to study the scheme in which seed electron bunches with moderate energies are injected into a plasma waveguide and the DLA is performed by use of relatively low-power (0.5-2 TW) laser pulses. Selected bunch injection delays with respect to the laser pulse, bunch lengths, and bunch transverse sizes have been studied in a series of simulations of DLA in a plasma waveguide. The results show that the injection delay is important for controlling the final transverse properties of short electron bunches, but it also affects the final energy gain. With a long injected bunch length, the enhanced ion-focusing force helps to collimate the electrons and a relativ...

Lin, M -W; Chen, S -H; Jovanovic, I

2014-01-01T23:59:59.000Z

259

High Power Electrodynamics (HPE): Accelerator Operations and Technology,  

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

CONTACTS CONTACTS Group Leader Bruce Carlsten Deputy Group Leader Ellen Guenette Administrator Josephine (Jo) Torres High-Power Electrodynamics (HPE) The High-Power Electrodynamics (AOT-HPE) Group applies accelerator and beam technologies to national-security-directed energy missions. AOT-HPE has three programmatic thrusts: free-electron lasers (FELs), high-power microwaves (HPM), and compact radiography. To maintain a vigorous and robust technical base for addressing DOE and DoD needs, the group's project portfolio is balanced between exploratory research, infrastructure development, and programmatic deliverables for sponsors. Funding is roughly 25% from the Lab's Directed Research and Development Program, 65% from DoD, and 10% from DOE. Technology Focus Areas AOT-HPE is the Laboratory's main vehicle for applying accelerator-based technologies to directed-energy mission needs. The group recognizes that many directed-energy missions are enabled by compact high-brightness electron accelerators and mm-wave and THz technologies.

260

ALS Chemistry Lab  

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

ALS Chemistry Lab Print ALS Chemistry Labs The ALS Chemistry Labs are located in the User Support Building (15-130) and in Building 6 (6-2233)*. These spaces are dedicated for...

Note: This page contains sample records for the topic "lab laser accelerator" 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

ALS Chemistry Lab  

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

Safety Safety for Users ALS Chemistry Lab Print ALS Chemistry Labs The ALS Chemistry Labs are located in the User Support Building (15-130) and in Building 6 (6-2233)*. These...

262

ALS Chemistry Lab  

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

Chemistry Lab Print ALS Chemistry Labs The ALS Chemistry Labs are located in the User Support Building (15-130) and in Building 6 (6-2233)*. These spaces are dedicated for...

263

Generation of 500 MeV-1 GeV energy electrons from laser wakefield acceleration via ionization induced injection using CO{sub 2} mixed in He  

SciTech Connect

Laser wakefield acceleration of 500 MeV to 1 GeV electron bunches has been demonstrated using ionization injection in mixtures of 4% to 10% of CO{sub 2} in He. 80 TW laser pulses were propagated through 5 mm gas jet targets at electron densities of 0.4-1.5 Multiplication-Sign 10{sup 19}cm{sup -3}. Ionization injection led to lower density thresholds, a higher total electron charge, and an increased probability of producing electrons above 500 MeV in energy compared to self-injection in He gas alone. Electrons with GeV energies were also observed on a few shots and indicative of an additional energy enhancement mechanism.

Mo, M. Z.; Ali, A.; Fedosejevs, R. [Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta T6G 2V4 (Canada)] [Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta T6G 2V4 (Canada); Fourmaux, S.; Lassonde, P.; Kieffer, J. C. [INRS-EMT, Universite du Quebec, 1650 Lionel Boulet, Varennes, Quebec J3X 1S2 (Canada)] [INRS-EMT, Universite du Quebec, 1650 Lionel Boulet, Varennes, Quebec J3X 1S2 (Canada)

2013-04-01T23:59:59.000Z

264

PLC Support Software at Jefferson Lab  

SciTech Connect

Several Automation Direct (DirectNet) Programmable Logic Controllers (PLCs) have been integrated into the accelerator control system at Jefferson Lab. The integration is based on new software that consists of three main parts: a PLC driver with a state machine control block, a device support module, and a common serial driver. The components of new software and experience gained with the use of this software for beam dump systems at Jefferson Lab are presented.

P. Chevtsov; S. Higgins; S. Schaffner; D. Seidman

2002-10-01T23:59:59.000Z

265

Recent News from the National Labs | Department of Energy  

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

24, 2011 24, 2011 Investing in a New Era of Manufacturing Technology The Energy Department will be investing up to $120 million over three years in the development of transformational manufacturing technologies and innovative materials that could enable industrial facilities to dramatically increase their energy efficiency. June 23, 2011 Uwe Bergmann | Photo Courtesy of Brad Plummer, SLAC 10 Questions for a Physicist: Uwe Bergmann How can we better use sunlight to create new fuels? SLAC National Accelerator Lab physicist Uwe Bergmann is helping answer this by using the world's first free electron x-ray laser to make an atomic resolution movie of photosynthesis -- how "tiny machines" in plants and algae use sunlight to split water into oxygen. June 22, 2011

266

Improving beam spectral and spatial quality by double-foil target in laser ion acceleration for ion-driven fast ignition  

SciTech Connect

Mid-Z ion driven fast ignition inertial fusion requires ion beams of 100s of MeV energy and < 10% energy spread. An overdense run-scale foil target driven by a high intensity laser pulse can produce an ion beam that has attractive properties for this application. The Break Out Afterburner (BOA) is one laser-ion acceleration mechanism proposed to generate such beams, however the late stages of the BOA tend to produce too large of an energy spread. The spectral and spatial qualities of the beam quickly evolve as the ion beam and co-moving electrons continue to interact with the laser. Here we show how use of a second target foil placed behind a nm-scale foil can substantially reduce the temperature of the co-moving electrons and improve the ion beam energy spread. Particle-In-Cell simulations reveal the dynamics of the ion beam under control. Optimal conditions for improving the spectral and spatial spread of the ion beam is explored for current laser and target parameters, leading to generation of ion beams of energy 100s of MeV and 6% energy spread, a vital step for realizing ion-driven fast ignition.

Huang, Chenkun [Los Alamos National Laboratory; Albright, Brian J [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

267

Lab Leadership | Princeton Plasma Physics Lab  

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Resources Environment, Safety & Health Procurement Division Technology Transfer Furth Plasma Physics Library Contact Us Lab Leadership Directory Careers Human Resources...

268

Careers | Jefferson Lab  

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Accessibility Careers Jobs at Jefferson Lab Jefferson Lab offers many interesting and challenging jobs in pursuit of a greater understanding of the visible universe. Read more Job...

269

Lab celebrates Earth Day  

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Lab celebrates Earth Day Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: Dec. 2014 - Jan. 2015 All Issues submit Lab...

270

About the Lab  

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Lab newsroomassetsimageslegacy-icon-short.jpg About the Lab Our stories, videos, and features embrace complex issues around our science, technologies, and mission that provide...

271

Lab announces security changes  

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Lab announces security changes Lab announces security changes The Laboratory is implementing several changes to its security procedures as the result of a recent security...

272

Thomas Jefferson National Accelerator Facility Site Tour - Accelerator Map  

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Counting House Free Electron Accelerator Facility Machine Control Center Physics Storage Building North Linear Accelerator South Linear Accelerator VEPCO Substation Machine Control Center Annex Machine Control Center Annex II North Access Building South Access Building Central Helium Liquefier Injector Hall A Truck Ramp Hall B Truck Ramp Hall C Truck Ramp Experimental Hall A Experimental Hall B Experimental Hall C East Arc West Arc Counting House Free Electron Accelerator Facility Machine Control Center Physics Storage Building North Linear Accelerator South Linear Accelerator VEPCO Substation Machine Control Center Annex Machine Control Center Annex II North Access Building South Access Building Central Helium Liquefier Injector Hall A Truck Ramp Hall B Truck Ramp Hall C Truck Ramp Experimental Hall A Experimental Hall B Experimental Hall C East Arc West Arc Science Education Jefferson Lab Jefferson Lab Home Search Jefferson Lab Contact Jefferson Lab Science Education Home Teacher Resources Student Zone Games and Puzzles Science Cinema Programs and Events Search Education Privacy and Security Notice Jefferson Lab Site Tour Guided Tour Site Map Accelerator Area Map Administrative Area Map Tour Index

273

Seventy Five Years of Particle Accelerators (LBNL Summer Lecture Series)  

ScienceCinema (OSTI)

Summer Lecture Series 2006: Andy Sessler, Berkeley Lab director from 1973 to 1980, sheds light on the Lab's nearly eight-decade history of inventing and refining particle accelerators, which continue to illuminate the nature of the universe.

Sessler, Andy

2011-04-28T23:59:59.000Z

274

E-Print Network 3.0 - accelerated l5-s1 segment Sample Search...  

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

Compensation in Laser Particle Accelerators L.C. Steinhauer and W.D. Kimura STI... Optronics, 2755 Northup Way, Bellevue, WA 98004-1495 Abstract. Laser particle acceleration...

275

Table of contents - MagLab Reports Volume 21 Issue 1  

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

magnets, better particle accelerators and more awesome science. HELIUM UPGRADES Recycling and recovering helium across the lab's three sites producing big savings. HZB MAGNET...

276

CEBAF accelerator achievements  

SciTech Connect

In the past decade, nuclear physics users of Jefferson Lab's Continuous Electron Beam Accelerator Facility (CEBAF) have benefited from accelerator physics advances and machine improvements. As of early 2011, CEBAF operates routinely at 6 GeV, with a 12 GeV upgrade underway. This article reports highlights of CEBAF's scientific and technological evolution in the areas of cryomodule refurbishment, RF control, polarized source development, beam transport for parity experiments, magnets and hysteresis handling, beam breakup, and helium refrigerator operational optimization.

Y.C. Chao, M. Drury, C. Hovater, A. Hutton, G.A. Krafft, M. Poelker, C. Reece, M. Tiefenback

2011-06-01T23:59:59.000Z

277

OMEGA EP Laser Integration Time Lapse Movie Gallery - Laboratory...  

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Integration Time Lapse Movie Gallery - Laboratory for Laser Energetics Laboratory for Laser Energetics Logo Search Home Around the Lab Past Issues Past Quick Shots About Office of...

278

Berkeley Lab Social Media  

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Berkeley Lab social media guidelines Berkeley Lab social media guidelines Read this before you tweet! These guidelines, developed by Berkeley Lab's Public Affairs Department, are intended to help Lab employees who use social media in an official capacity on behalf of Berkeley Lab. Social media is a great way to engage a large audience, but there are ways to do it well-and not so well-so please read on. These guidelines are for Lab staff interested in establishing a social media presence for a department, division, or user facility. They're also for Lab staff using social media as an individual but representing the Lab in some way. For Berkeley Lab's policies on basic computing and communications, which pertain to all Lab employees, read RPM 9.01 Computing and Communication and RPM 9.02 Operational Procedures for Computing and

279

Accelerator on a Chip  

ScienceCinema (OSTI)

SLAC's Joel England explains how the same fabrication techniques used for silicon computer microchips allowed their team to create the new laser-driven particle accelerator chips. (SLAC Multimedia Communications)

England, Joel

2014-07-16T23:59:59.000Z

280

Accelerator on a Chip  

SciTech Connect

SLAC's Joel England explains how the same fabrication techniques used for silicon computer microchips allowed their team to create the new laser-driven particle accelerator chips. (SLAC Multimedia Communications)

England, Joel

2014-06-30T23:59:59.000Z

Note: This page contains sample records for the topic "lab laser accelerator" 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

OMEGA EP Laser Sources - Laboratory for Laser Energetics  

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Sources - Laboratory for Laser Energetics Laboratory for Laser Energetics Logo Search Home Around the Lab Past Issues Past Quick Shots About Office of the Director Map to LLE LLE...

282

Omega Laser Facility Schedule - Laboratory for Laser Energetics  

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Schedule - Laboratory for Laser Energetics Laboratory for Laser Energetics Logo Search Home Around the Lab Past Issues Past Quick Shots About Office of the Director Map to LLE LLE...

283

Argonne Accelerator Institute  

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Mission Mission The mission of the Argonne Accelerator Institute is centered upon the following related goals: Locate next generation accelerator facilities in Northern Illinois Advance accelerator technology Oversee a selected, strategic, lab-wide, and acclaimed accelerator R&D portfolio In order to accomplish the above goals, the institute has established five objectives. These are coupled to programmatic objectives, and are dependent on each other, but they serve to identify important areas for the institute to focus its activities. Educate the "next generation" of accelerator physicists and engineers Work with area Universities to establish Joint Appointments and Adjunct Professorships Identify students Provide research opportunities at Argonne Work with the US Particle Accelerator School

284

North Linear Accelerator  

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North Linear Accelerator North Linear Accelerator Building Exterior Beam Enclosure Level Walk to the North Spreader North Recombiner Extras! North Linear Accelerator The North Linear Accelerator is one of the two long, straight sections of Jefferson Lab's accelerator. Electrons gain energy in this section by passing through acceleration cavities. There are 160 cavities in this straightaway, all lined up end to end. That's enough cavities to increase an electron's energy by 400 million volts each time it passes through this section. Electrons can pass though this section as many as five times! The cavities are powered by microwaves that travel down the skinny rectangular pipes from the service buildings above ground. Since the cavities won't work right unless they are kept very cold, they

285

Phase Stable Net Acceleration of Electrons From a Two-Stage Optical Accelerator  

SciTech Connect

In this article we demonstrate the net acceleration of relativistic electrons using a direct, in-vacuum interaction with a laser. In the experiment, an electron beam from a conventional accelerator is first energy modulated at optical frequencies in an inverse-free-electron-laser and bunched in a chicane. This is followed by a second stage optical accelerator to obtain net acceleration. The optical phase between accelerator stages is monitored and controlled in order to scan the accelerating phase and observe net acceleration and deceleration. Phase jitter measurements indicate control of the phase to {approx}13{sup o} allowing for stable net acceleration of electrons with lasers.

Sears, Christopher M.S.; /SLAC /Munich, Max Planck Inst. Quantenopt.; Colby, Eric; England, R.J.; Ischebeck, Rasmus; McGuinness, Christopher; Nelson, Janice; Noble, Robert; Siemann, Robert H.; Spencer, James; Walz, Dieter; /SLAC; Plettner, Tomas; Byer, Robert L.; /Stanford U., Phys. Dept.

2011-11-11T23:59:59.000Z

286

Institutions Related to Berkeley Lab  

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Institutions Related to Berkeley Laboratory Institutions Related to Berkeley Laboratory DOE logo Office of Science logo UC seal Berkeley Lab logo University of California Department of Energy (DOE) and DOE National Laboratories NERSC (National Energy Research Scientific Computing Center) ESnet Stanford Linear Accelerator Center (SLAC) Lawrence Livermore National Laboratory Los Alamos National Laboratory High Energy Physics Information Center U.S. Government University of California UC Berkeley UC Berkeley colleges, schools, and teaching units The Daily Cal independent student newspaper at UC Berkeley. University of California campuses and labs UC Office of the President UC National Laboratories provides news and information on UC's management of three DOE laboratories -- Lawrence Berkeley National Laboratory, Lawrence Livermore National Laboratory, and Los Alamos National

287

12 GeV Upgrade | Jefferson Lab  

NLE Websites -- All DOE Office Websites

Science Science A Schematic of the 12 GeV Upgrade The 12 GeV Upgrade will greatly expand the research capabilities of Jefferson Lab, adding a fourth experimental hall, upgrading existing halls and doubling the power of the lab's accelerator. A D D I T I O N A L L I N K S: 12 GeV Home Public Interest Scientific Opportunities Hall D Status Updates Contacts Three-Year Accelerator Schedule 2014 - 2016 top-right bottom-left-corner bottom-right-corner 12 GeV Upgrade Physicists at Jefferson Lab are trying to find answers to some of nature's most perplexing questions about the universe by exploring the nucleus of the atom. Their goal is to answer such questions as: "What is the universe made of?" and "What holds everyday matter together?" In their search for answers, physicists smash electrons into atoms using

288

Berkeley Lab - ARRA - In the News  

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IN THE NEWS IN THE NEWS New accelerator to study steps on the path to fusion Symmetry Breaking, May 9, 2012 Berkeley Lab scientists and engineers announced in a press release on May 8 that they have completed a machine tailor-made to examine one approach to fusion power. More > Biomass pretreatment CNET, Aug 20, 2011 Here in the analytics lab, ABPDU's Rakesh Banka (right) explains the lab capabilities as Paul Bryan (left), of the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy, listens with the first group to tour the facility following Thursday's ribbon cutting. More > Berkeley Lab Offers Smart Building Tests Earth Techling, Aug 3, 2011 The promise of green buildings married to super efficient smart building tech is huge, considering the fact that buildings currently account for

289

Berkeley Lab A to Z Index: B  

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BABAR (Experiment at the SLAC B-Factory for observation of CP violation) BABAR (Experiment at the SLAC B-Factory for observation of CP violation) Back-Up Dependent Care Backups for Computers Backups for Macintosh Backups for PC Servers (Novell, NT, etc.) Backups for PC and Mac desktops (self-service using Carbonite) Backups for Linux and UNIX Badge Office Badges: Employee ID Badges BASE (Berkeley Accelerator Space Effects) Batteries:Technology Transfer Bay Area Gigabit (BAGnet) Testbed Benefits Benefits (Total Rewards) Berkeley Center for Structural Biology(BCSB) Berkeley Electrochemical Research Council (BERC) Berkeley Lab 75th Anniversary Site Berkeley Lab Energy and Environmental Research Blog Berkeley Lab Learning Institute (BLI) Berkeley Lab Merchandise for Sale 24/7 at the Guest House Berkeley Structural Genomics Center Beryllium Safety

290

Miniaturization Techniques for Accelerators  

SciTech Connect

The possibility of laser driven accelerators [1] suggests the need for new structures based on micromachining and integrated circuit technology because of the comparable scales. Thus, we are exploring fully integrated structures including sources, optics (for both light and particle) and acceleration in a common format--an accelerator-on-chip (AOC). Tests suggest a number of preferred materials and techniques but no technical or fundamental roadblocks at scales of order 1 {micro}m or larger.

Spencer, James E.

2003-05-27T23:59:59.000Z

291

Autonomous Systems Lab Prof. Roland Siegwart  

E-Print Network (OSTI)

Autonomous Systems Lab Prof. Roland Siegwart Semester Thesis Supervised by: Author: Dr. C´edric Pradalier Bastian B¨ucheler Simon Lynen Robotic Floor Marking System using a Laser Measurement System Autumn;6.4 Convergence of Yaw Estimation . . . . . . . . . . . . . . . . . . . . . 27 6.4.1 Setup

Daraio, Chiara

292

MagLab Summer School Tallahassee, Florida  

E-Print Network (OSTI)

1330 Data Acquisition-Scott Hannahs Lab Practicals 1415 Group 3 Cell D: R,R_H in DC magnets-Eric Palm Precision Measurements of Electrical Resistivity-Ross McDonald 1000 Break 1030 The Vector Potential Magnetic Resonance at the NHMFL-Stephen Hill 1200 LUNCH A "Big Light" Terahertz-to-Infrared Laser

Weston, Ken

293

Accelerating projects  

SciTech Connect

This chapter describes work at ORNL in the period around 1950, when the laboratory was evolving from its original mission of research aimed at producing the atomic bomb, to a new mission, which in many ways was unclear. The research division from Y-12 merged with the laboratory, which gave an increased work force, access to a wide array of equipment, and the opportunity to work on a number of projects related to nuclear propulsion. The first major project was for a nuclear aircraft. From work on this program, a good share of the laboratories work in peaceful application of nuclear energy would spring. A major concern was the development of light weight shielding to protect the crew and materials in such a plane. To do such shielding work, the laboratory employed existing, and new reactors. The original plans called for the transfer of reactor work to Argonne, but because of their own research load, and the needs of the lab, new reactor projects were started at the lab. They included the Low Intensity Test Reactor, the Swimming Pool Reactor, the Bulk Shielding Reactor, the Tower Shielding Facility, and others. The laboratory was able to extend early work on calutrons to accelerator development, pursuing both electrostatic accelerators and cyclotrons. The aircraft project also drove the need for immense quantities of scientific data, with rapid analysis, which resulted the development of divisions aimed at information support and calculational support. The laboratory also expanded its work in the effects of radiation and cells and biological systems, as well as in health physics.

Not Available

1992-01-01T23:59:59.000Z

294

2010 | Jefferson Lab  

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10 Wed, 12222010 - 2:00pm Jefferson Lab Weekly Briefs December 22, 2010 Wed, 12152010 - 2:00pm Jefferson Lab Weekly Briefs December 15, 2010 Wed, 12082010 - 2:00pm Jefferson...

295

2009 | Jefferson Lab  

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9 Wed, 12162009 - 2:00pm Jefferson Lab Weekly Briefs December 16, 2009 Wed, 12092009 - 2:00pm Jefferson Lab Weekly Briefs December 9, 2009 Wed, 12022009 - 2:00pm Jefferson...

296

2007 | Jefferson Lab  

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December 2007 Wed, 12192007 - 2:00pm Jefferson Lab Weekly Briefs December 19, 2007 Wed, 12122007 - 2:00pm Jefferson Lab Weekly Briefs December 12, 2007 Wed, 12052007 - 2:00pm...

297

2008 | Jefferson Lab  

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8 Wed, 12172008 - 2:00pm Jefferson Lab Weekly Briefs December 17, 2008 Wed, 12102008 - 2:00pm Jefferson Lab Weekly Briefs December 10, 2008 Wed, 12032008 - 2:00pm Jefferson...

298

2012 | Jefferson Lab  

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2 Wed, 12192012 - 2:00pm Jefferson Lab Weekly Briefs December 19, 2012 Wed, 12122012 - 12:00pm Jefferson Lab Weekly Briefs December 12, 2012 Wed, 12052012 - 2:00pm Jefferson...

299

2011 | Jefferson Lab  

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1 Wed, 12212011 - 2:00pm Jefferson Lab Weekly Briefs December 21, 2011 Wed, 12142011 - 2:00pm Jefferson Lab Weekly Briefs December 14, 2011 Wed, 12072011 - 2:00pm Jefferson...

300

Accessibility | Jefferson Lab  

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Careers Jobs at Jefferson Lab Jefferson Lab offers many interesting and challenging jobs in pursuit of a greater understanding of the visible universe. A D D I T I O N A L L I N K...

Note: This page contains sample records for the topic "lab laser accelerator" 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

2014 | Jefferson Lab  

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

4 Wed, 12172014 - 4:26pm Jefferson Lab Weekly Briefs December 17, 2014 Wed, 12102014 - 5:59pm Jefferson Lab Weekly Briefs December 10, 2014 Wed, 12032014 - 5:13pm Jefferson...

302

2007 - 12 | Jefferson Lab  

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Tue, 12112007 - 2:00pm Property Accountability Tue, 12112007 - 12:00am JLab Cybersecurity Warning: DOE Labs Hacked Through E-mail Fri, 12072007 - 2:00pm 122107 - Lab...

303

2002 | Jefferson Lab  

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Lab Summer Externships Mon, 04222002 - 1:00pm Jefferson Lab Tech Associate Invents Lockout Device for Equipment with Removable Power Cords Mon, 04222002 - 1:00pm Jefferson...

304

Economic Impact | Jefferson Lab  

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Jefferson Lab's Hall A Jefferson Lab generates many economic benefits for the nation and Virginia, providing many well-paying jobs for highly skilled and well-educated workers. A D...

305

2011 - 09 | Jefferson Lab  

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September 2011 Sun, 09252011 - 2:00pm Jefferson Lab Weekly Briefs September 28, 2011 Wed, 09212011 - 2:00pm Jefferson Lab Weekly Briefs September 21, 2011 Wed, 09142011 -...

306

2009 - 07 | Jefferson Lab  

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July 2009 Sun, 07052009 - 11:00pm Jefferson Lab creates better way to discover breast cancer Sun, 07052009 - 11:00pm Jefferson Lab employee invents low-tech gizmo to protect...

307

2008 - 04 | Jefferson Lab  

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April 2008 Sun, 04132008 - 11:00pm Jefferson Lab finds its man Mont (Inside Business) Wed, 04022008 - 11:00pm New director of Jefferson Lab named (Daily Press) Wed, 04022008...

308

GridLAB-D  

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

GridLAB-D GridLAB-D 2010 Peer Review Overview * What is GridLAB-D? * Why use GridLAB-D? * How does GridLAB-D work? * How has GridLAB-D been used so far? * What is it expected in the coming year? * Funding and management details GridLAB-D Simulates the Smart Grid Power system models Load models Market models GridLAB-D model unifies keys elements of a Smart Grid  Next generation tool  Integrates models  Smart Grid analysis  Projects  Technologies  Cost/benefits  Business cases  Multi-scale models  Seconds to decades  Links to existing tools  Open source  Contributions from  Government  Industry  Academic  Vendors  Drives need for high performance computers  Vendors can add/extract modules for their own uses 3 Why simulate the smart grid?

309

Test Facility Daniil Stolyarov, Accelerator Test Facility User...  

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Development of the Solid-State Laser System for the Accelerator Test Facility Daniil Stolyarov, Accelerator Test Facility User's Meeting April 3, 2009 Outline Motivation for...

310

Accelerators and the Accelerator Community  

E-Print Network (OSTI)

of electrostatic accelerators, while Ernest O. Lawrence (CBP 820 LBNL TBA ACCELERATORS ANDTHE ACCELERATOR COMMUNITY 1 ANDREW SESSLER Lawrence Berkeley

Malamud, Ernest

2009-01-01T23:59:59.000Z

311

2006 - 03 | Jefferson Lab  

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March 2006 Sun, 03052006 - 12:00am Faces and Places: Fellowships for US lab directors (CERN Courier...

312

Beam-Dynamics Studies and Advanced Accelerator Research at CTF-3 Compact Final Focus, Laser Compton Scattering, Plasmas, etc.  

E-Print Network (OSTI)

Preliminary investigations are summarized on the possible use of the CTF3 facility for extended beam-dynamics studies and advanced accelerator R&D, which would exploit its unique properties and beam availability. The key element of these considerations is the possible addition of a test beam-delivery system comprising a compact final focus and advanced collimation concepts, scaled from 3 TeV down to low energy and having a short total length. Operational experience, verification of critical questions (octupole tail folding, beam halo transport, etc.), diagnostics (e.g., rf BPMs) and stabilization could all be explored in such a facility, which would benefit not only the CLIC study, but all linear collider projects. Another interesting application would be the study of plasma-beam interaction, which may include plasma focusing, plasma acceleration, ion-channel radiation, and plasma wigglers.

Assmann, R W; Burkhardt, H; Corsini, R; Faus-Golfe, A; Gronberg, J; Redaelli, S; Schulte, Daniel; Velasco, M; Zimmermann, Frank

2002-01-01T23:59:59.000Z

313

VOLUME 78, NUMBER 16 P H Y S I C A L R E V I E W L E T T E R S 21 APRIL 1997 Electron Acceleration by a Laser Wakefield in a Relativistically Self-Guided Channel  

E-Print Network (OSTI)

, x-ray lasers, and ultrahigh-gradient electron accelerators [2]. In the latter case, the field by a Laser Wakefield in a Relativistically Self-Guided Channel R. Wagner, S.-Y. Chen, A. Maksimchuk, and D-modulated laser wakefield is discussed. Above a power threshold, a relativistically self-guided channel from

Umstadter, Donald

314

Searching for Cosmic Accelerators via IceCube  

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Searching for Cosmic Accelerators via IceCube Searching for Cosmic Accelerators via IceCube Berkeley Lab Researchers Part of an International Hunt November 21, 2013 Lynn Yarris,...

315

Lab Breakthrough: Record-Setting Cavities | Department of Energy  

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

Record-Setting Cavities Record-Setting Cavities Lab Breakthrough: Record-Setting Cavities April 24, 2012 - 2:34pm Addthis At Jefferson Lab, researchers have fabricated a niobium cavity for particle accelerators that has set a world record for energy efficiency. Gianluigi "Gigi" Ciovati, a superconducting radiofrequency scientist, discusses how scientists at the Jefferson Lab developed the technology, and how it will be used to impact the energy industry. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What does this project do? With more powerful accelerators, researchers can someday build new power plants that produce little or no nuclear waste. At Jefferson Lab, researchers have fabricated a niobium cavity for particle accelerators that has set a world record for energy efficiency. Gianluigi

316

Accelerators, Electrodynamics  

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Science and Innovation Capabilities Accelerators, Electrodynamics science-innovationassetsimagesicon-science.jpg Accelerators, Electrodynamics National security depends...

317

Science Education Lab | Princeton Plasma Physics Lab  

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Lab Lab Science Education Laboratory Overview Gallery: (Photo by Remote Control Glow Discharge) (Photo by DC Glow Discharges for Undergraduate Laboratories) (Photo by Atmospheric Plasma Laboratory) (Photo by 3D Printing Laboratory) (Photo by Remote Control Glow Discharge) (Photo by Plasma Speaker with 200 Hz input) (Photo by Dusty Plasma Laboratory) The Science Education Laboratory is a fusion (pun intended) of research between education and plasma science. This unique facility includes a teaching laboratory/classroom, two research labs, and student offices/storage/prep room. The research performed in the Science Education Laboratory is currently centered upon dusty plasmas, plasma speakers, remote control of plasmas for educational purposes, atmospheric plasmas and

318

DOE Congratulates Under Secretary, National Lab Director and Other National  

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

Congratulates Under Secretary, National Lab Director and Other Congratulates Under Secretary, National Lab Director and Other National Lab Scientists for Receiving Top Scientific Honor DOE Congratulates Under Secretary, National Lab Director and Other National Lab Scientists for Receiving Top Scientific Honor April 29, 2010 - 12:00am Addthis Washington, DC - U.S. Department of Energy Under Secretary for Science Steven E. Koonin, SLAC National Accelerator Laboratory Director Persis Drell, and other National Lab affiliated scientists and engineers are among the 72 new members elected to the National Academy of Sciences (NAS). NAS is a private, nonprofit, honorific society of distinguished scholars engaged in scientific and engineering research, dedicated to furthering science and technology and to their use for the general welfare.

319

Laser Micromachining: Advantages of Liquid Environments  

E-Print Network (OSTI)

Laser Micromachining: Advantages of Liquid Environments Marc J. Palmeri Princeton University Arnold Lab #12;Outline · Motivation ­ Applications of laser micromachining ­ Problems with laser micromachining · How do lasers work? · What is laser micromachining? · Micromachining assembly · Methods

Petta, Jason

320

Seventy Five Years of Particle Accelerators  

ScienceCinema (OSTI)

Andy Sessler, Berkeley Lab director from 1973 to 1980, sheds light on the Lab's nearly eight-decade history of inventing and refining particle accelerators, which continue to illuminate the nature of the universe. His talk was presented July 26, 2006.

Andy Sessler

2013-06-11T23:59:59.000Z

Note: This page contains sample records for the topic "lab laser accelerator" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

SUNY Technology Accelerator Fund PROGRAM: Complete Guidelines can be found at SUNY Technology Accelerator Fund 2014  

E-Print Network (OSTI)

SUNY Technology Accelerator Fund PROGRAM: Complete Guidelines can be found at SUNY Technology Accelerator Fund 2014 OBJECTIVES: The SUNY Technology Accelerator Fund ("TAF") provides funding to support the advancement of SUNY technologies from the lab to the marketplace. In many cases, SUNY technology developed

Suzuki, Masatsugu

322

Berkeley Lab Nobel Laureates  

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Since Berkeley Lab's founding, 13 Lab researchers have been awarded the Since Berkeley Lab's founding, 13 Lab researchers have been awarded the Nobel Prize. The links below take you to the laureates' acceptance speeches and their biographies. Ernest Orlando Lawrence 1939: Ernest Orlando Lawrence Ernest Orlando Lawrence, founder of the Berkeley Lab, for "the invention and development of the cyclotron, and for the results thereby attained, especially with regard to artificial radioelements." blue spacer image Glenn T. Seaborg 1951: Glenn T. Seaborg Glenn T. Seaborg, with Edwin M. McMillan for "their discoveries in the chemistry of the transuranic elements." blue spacer image Edwin M. McMillan 1951: Edwin M. McMillan Edwin M. McMillan, former Director of the Berkeley Lab, with Glenn T. Seaborg for "their discoveries in the chemistry of the transuranic elements."

323

Friends of Berkeley Lab  

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

Friends of Berkeley Lab masthead Friends of Berkeley Lab masthead About Friends of Berkeley Lab Join Friends of Berkeley Lab Event/Video Archive Newsletter Archive Laboratory Tours Learn About the Geology of Berkeley Lab Email: friendsofberkeleylab@lbl.gov Public Affairs State Government and Community Relations Center for Science and Engineering Education (CSEE) Facebook icon Visit Our Facebook Page and Become a Fan YouTube icon Watch Our Videos on YouTube Twitter icon Follow Us on Twitter Twitter icon View our Photo Stream on Flickr Web feed icon Read Our Latest Science News Video Glossary icon See Berkeley Lab Scientists Define Scientific Terms in Lay Language at Our Video Glossary 29 Breakthroughs SCIENCE AT THE THEATER, OCTOBER 28, 2013 Poster Google Maps Speakers include: Peter Nugent -- Supercomputing and the search for supernovae

324

Laser Stabilization  

SciTech Connect

This book chapter covers the basics of the field of stabilizing lasers to optical frequency references such as optical cavities and molecular transitions via the application of servo control systems. These discussions are given with reference to the real-life frequency metrology experienced in Hall-Labs (now Ye-Labs), JILA, University of Colorado. The subjects covered include: the basics of control system stability, a discussion of both the theoretical and experimental limitations, an outline of optical cavity susceptibility to environmental noise, and a brief introduction to the use and limitations of molecular transitions as frequency references.

Hall, John L.; Taubman, Matthew S.; Ye, Jun

2010-01-01T23:59:59.000Z

325

Accelerator on a Chip: How It Works  

SciTech Connect

In an advance that could dramatically shrink particle accelerators for science and medicine, researchers used a laser to accelerate electrons at a rate 10 times higher than conventional technology in a nanostructured glass chip smaller than a grain of rice.

None

2014-06-30T23:59:59.000Z

326

2007 | Jefferson Lab  

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

dentistry solves modern crimes, unravels mysteries of Salem Witch Trials, ancient Egypt Mon, 10152007 - 12:49pm Energy Savings Deeply Rooted At Jefferson Lab Mon, 1001...

327

2007 - 10 | Jefferson Lab  

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

dentistry solves modern crimes, unravels mysteries of Salem Witch Trials, ancient Egypt Mon, 10152007 - 12:49pm Energy Savings Deeply Rooted At Jefferson Lab Mon, 1001...

328

2007 - 06 | Jefferson Lab  

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June 2007 Tue, 06122007 - 2:00pm Innovative Energy-Saving Process Earns Jefferson Lab Team a 2007 White House Award...

329

Berkeley Lab News Releases  

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Berkeley Lab's Joe Gray for Improved Breast Cancer Screening (10107) Bay Areas Joint BioEnergy Institute Gets Financial Kick-Start from DOE (92807) Good Vibrations: Using...

330

Jefferson Lab - Careers  

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

Jefferson Lab offers many interesting and challenging jobs in pursuit of a greater understanding of the visible universe.

...

331

2007 - 06 | Jefferson Lab  

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June 2007 Sun, 06242007 - 11:00pm At science, he's a natural; Retiring J-Lab leader discusses red tape and the pursuit of knowledge (Inside Business...

332

1997 - 03 | Jefferson Lab  

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Mon, 03171997 - 12:00am Laboratory Profile: Jefferson Lab Scientific Motivation and Research Program (Nuclear Physics News) Mon, 03171997 - 12:00am Laboratory Profile:...

333

1997 | Jefferson Lab  

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

Mon, 03171997 - 12:00am Laboratory Profile: Jefferson Lab Scientific Motivation and Research Program (Nuclear Physics News) Mon, 03171997 - 12:00am Laboratory Profile:...

334

2008 - 12 | Jefferson Lab  

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

Radiation Badge Change Out Thu, 12182008 - 3:00pm Lab Cybersecurity Update: Critical Patch for Microsoft Internet Explorer - Requires Reboot Thu, 12182008 - 3:00pm Employee...

335

2008 | Jefferson Lab  

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

Radiation Badge Change Out Thu, 12182008 - 3:00pm Lab Cybersecurity Update: Critical Patch for Microsoft Internet Explorer - Requires Reboot Thu, 12182008 - 3:00pm Employee...

336

Superconductivity Centennial | Jefferson Lab  

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

accelerator cavities, like this one, harness the energy that the CEBAF accelerator pumps into its electron beam for nuclear physics research. SRF cavities are typically made...

337

OMEGA Targets - Laboratory for Laser Energetics  

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

Targets - Laboratory for Laser Energetics Laboratory for Laser Energetics Logo Search Home Around the Lab Past Issues Past Quick Shots About Office of the Director Map to LLE LLE...

338

Charge steering of laser plasma accelerated fast ions in a liquid spray creation of MeV negative ion and neutral atom beams  

SciTech Connect

The scenario of electron capture and loss has been recently proposed for the formation of negative ion and neutral atom beams with up to MeV kinetic energy [S. Ter-Avetisyan, et al., Appl. Phys. Lett. 99, 051501 (2011)]. Validation of these processes and of their generic nature is here provided in experiments where the ion source and the interaction medium have been spatially separated. Fast positive ions accelerated from a laser plasma source are sent through a cold spray where their charge is changed. Such formed neutral atom or negative ion has nearly the same momentum as the original positive ion. Experiments are released for protons, carbon, and oxygen ions and corresponding beams of negative ions and neutral atoms have been obtained. The electron capture and loss phenomenon is confirmed to be the origin of the negative ion and neutral atom beams. The equilibrium ratios of different charge components and cross sections have been measured. Our method is general and allows the creation of beams of neutral atoms and negative ions for different species which inherit the characteristics of the positive ion source.

Schnrer, M.; Abicht, F.; Priebe, G.; Braenzel, J. [Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, 12489 Berlin (Germany)] [Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, 12489 Berlin (Germany); Prasad, R. [Institute for Laser and Plasma Physics, Heinrich Heine University, Duesseldorf 40225 (Germany)] [Institute for Laser and Plasma Physics, Heinrich Heine University, Duesseldorf 40225 (Germany); Borghesi, M. [School of Mathematics and Physics, The Queen's University of Belfast, Belfast BT7 1NN (United Kingdom) [School of Mathematics and Physics, The Queen's University of Belfast, Belfast BT7 1NN (United Kingdom); ELIBeamlines, Institute of Physics, Czech Academy of Science, 18221 Prague (Czech Republic); Andreev, A. [Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, 12489 Berlin (Germany) [Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, 12489 Berlin (Germany); Vavilov State Optical Institute, 119034 St. Petersburg (Russian Federation); Nickles, P. V. [WCU Department of Nanobio Materials and Electronics, Gwangju Institute of Science and Technology, Gwangju (Korea, Republic of)] [WCU Department of Nanobio Materials and Electronics, Gwangju Institute of Science and Technology, Gwangju (Korea, Republic of); Jequier, S.; Tikhonchuk, V. [Centre Lasers Intenses et Applications, University of Bordeaux, CEA, CNRS, 33405 Talence (France)] [Centre Lasers Intenses et Applications, University of Bordeaux, CEA, CNRS, 33405 Talence (France); Ter-Avetisyan, S. [ELIBeamlines, Institute of Physics, Czech Academy of Science, 18221 Prague (Czech Republic)] [ELIBeamlines, Institute of Physics, Czech Academy of Science, 18221 Prague (Czech Republic)

2013-11-15T23:59:59.000Z

339

Jefferson Lab - Research  

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80 en Free-Electron Laser https:www.jlab.orgfree-electron-laser

340

Overview of Nuclear Physics at Jefferson Lab  

SciTech Connect

The Continuous Electron Beam Accelerator Facility (CEBAF) and associated experimental equipment at Jefferson Lab comprise a unique facility for experimental nuclear physics. This facility is presently being upgraded, which will enable a new experimental program with substantial discovery potential to address important topics in nuclear, hadronic, and electroweak physics. Further in the future, it is envisioned that the Laboratory will evolve into an electron-ion colliding beam facility.

McKeown, Robert D. [JLAB

2013-08-01T23:59:59.000Z

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While these samples are representative of the content of NLEBeta,
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341

Computer Lab Information Location  

E-Print Network (OSTI)

M340 Computer Lab Information · Location: The computer labs accessible to you are Weber 205 it is recommended that you save your files on a floppy when you are finished. · There is another directory, g:\\m340 to the saved files you have to add the directory to the Matlab path. To do this type addpath g:\\m340

Dangelmayr, Gerhard

342

Millikelvin Lab Machine Shop  

E-Print Network (OSTI)

Millikelvin Lab OP105­112 Machine Shop OP132 Resistive Magnet Shop CICC Winding Area Transformers This building is home to the Millikelvin lab, the control room, the resistive magnet and machine shops, the CICC@magnet.fsu.edu (850) 644-4378 (850) 644-0534 2 MACHINE SHOP OP132 Vaughan Williams (A114*) williams

McQuade, D. Tyler

343

Working With Berkeley Lab  

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Working with the Lab Working with the Lab A-Z Index Search Phone Book Comments Ernest Orlando Lawrence Berkeley National Laboratory Technology Transfer Patent Department Sponsored Projects Office Procurement: Doing Business with the Lab Visitor Information Scientififc Divisions and National User Facilities UC Campus-Labs Collaboration Programs Berkeley Lab stresses collaboration in everything we do. The Laboratory is involved in many research partnerships with private industry. Our mission also includes the transfer of Laboratory inventions to the private sector for rapid commercialization. The role of the Technology Transfer Office is to make technology and expertise developed here available to industry. Contact the Technology Transfer Office to pinpoint research areas of common interest, negotiate rights to Laboratory intellectual property, and to discuss current patent and copyright licensing opportunities.

344

Berkeley Lab Social Media  

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can get your Berkeley Lab any way you like it. Many of our user can get your Berkeley Lab any way you like it. Many of our user facilities, scientific divisions, and other groups want to connect with you on Facebook, Twitter, YouTube, and other sites. Join the conversation! Berkeley Lab's Primary Social Media Channels FB Twitter Google+ youtube Flickr Other Berkeley Lab Facebook Pages fb icon Joint Genome Institute (JGI) fb icon Energy Sciences Network fb icon Environmental Energy Technologies Division fb icon Advanced Light Source (ALS) National Energy Research Scientific Computing (NERSC) Joint Bio Energy Institute (JBEI) Computing Sciences LBNL Research Library Life Sciences Division Earth Sciences Division Berkeley Lab Recruiters Information Technology Division Engineering Division Home Energy Saver Home Energy Saver Pro

345

Transformative Science: Energy Efficiency at the National Labs | Department  

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

Transformative Science: Energy Efficiency at the National Labs Transformative Science: Energy Efficiency at the National Labs Transformative Science: Energy Efficiency at the National Labs November 4, 2013 - 4:00pm Addthis Research Support Facility 1 of 3 Research Support Facility At the National Renewable Energy Laboratory, the Research Support Facility (RSF) houses about 1,300 federal employees and is one of the largest net-zero office buildings in the world -- meaning it produces as much energy as it consumes. Energy efficiency features at the RSF include daylighting, low-emissivity windows, building orientation, and super insulation. Image: Photo by Dennis Schroeder, National Renewable Energy Laboratory. Date taken: 2010-08-17 12:00 Illinois Accelerator Research Center 2 of 3 Illinois Accelerator Research Center The 83,000 square-foot Illinois Accelerator Research Center, a new building

346

Energy Efficiency at the National Labs | Department of Energy  

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

Energy Efficiency at the National Labs Energy Efficiency at the National Labs Energy Efficiency at the National Labs Addthis Research Support Facility 1 of 3 Research Support Facility At the National Renewable Energy Laboratory, the Research Support Facility (RSF) houses about 1,300 federal employees and is one of the largest net-zero office buildings in the world -- meaning it produces as much energy as it consumes. Energy efficiency features at the RSF include daylighting, low-emissivity windows, building orientation, and super insulation. Image: Photo by Dennis Schroeder, National Renewable Energy Laboratory. Date taken: 2010-08-17 12:00 Illinois Accelerator Research Center 2 of 3 Illinois Accelerator Research Center The 83,000 square-foot Illinois Accelerator Research Center, a new building at Fermilab, is aiming for a LEED Gold rating from the US Green Building

347

Transformative Science: Energy Efficiency at the National Labs | Department  

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

Transformative Science: Energy Efficiency at the National Labs Transformative Science: Energy Efficiency at the National Labs Transformative Science: Energy Efficiency at the National Labs November 4, 2013 - 4:00pm Addthis Research Support Facility 1 of 3 Research Support Facility At the National Renewable Energy Laboratory, the Research Support Facility (RSF) houses about 1,300 federal employees and is one of the largest net-zero office buildings in the world -- meaning it produces as much energy as it consumes. Energy efficiency features at the RSF include daylighting, low-emissivity windows, building orientation, and super insulation. Image: Photo by Dennis Schroeder, National Renewable Energy Laboratory. Date taken: 2010-08-17 12:00 Illinois Accelerator Research Center 2 of 3 Illinois Accelerator Research Center The 83,000 square-foot Illinois Accelerator Research Center, a new building

348

National Labs | Department of Energy  

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

Lab Day Fact Sheets Secretary Ernest Moniz learns about the Labs' work in high performance computing and additive manufacturing. | Photo courtesy of Sarah Gerrity, Energy...

349

Radiator Labs | Department of Energy  

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of steam buildings. Radiator Labs developed a mechanism that allows heating systems to control heat transfer at each radiator. The Radiator Labs design utilizes an...

350

Laser-triggered ion acceleration and table top isotope production Central Research Institute of Electric Power Industry, 2-11-1, Iwado-kita, Komae-shi,  

E-Print Network (OSTI)

to accelerate protons and ions for experiments in nuclear physics and for applications in nuclear medicine It was shown that these accelerated protons can induce nuclear transformations.6 In this letter we report acceleration was attributed to the electrostatic field of charge separation due to ``vacuum heating,'' 9

Umstadter, Donald

351

BNL | Our History: Accelerators  

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> See also: Reactors > See also: Reactors A History of Leadership in Particle Accelerator Design Cosmotron Cosmotron (1952-1966) Early in Brookhaven Lab history, the consortium of universities responsible for founding the new research center, decided that Brookhaven should provide leading facilities for high energy physics research. In April 1948, the Atomic Energy Commission approved a plan for a proton synchrotron to be built at Brookhaven. The new machine would accelerate protons to previously unheard of energies-comparable to the cosmic rays showering the earth's outer atmosphere. It would be called the Cosmotron. The Cosmotron was the first accelerator in the world to send particles to energies in the billion electron volt, or GeV, region. The machine reached its full design energy of 3.3 GeV in 1953.

352

MatLab Introductory Lab Performed: Monday January 20th  

E-Print Network (OSTI)

. These tutorials taught us many different skills such as; variable creation, matrix multiplication, graphing in 2ELEC 1908 MatLab Introductory Lab Performed: Monday January 20th 2014 Submitted: Monday January 27;Introduction Purpose The purpose of this lab is to familiarize the students with MatLab software. Using

Smy, Tom

353

Laser Worker Registration Form (LWRF) Surname: Forenames  

E-Print Network (OSTI)

ABCDEFGHI Laser Worker Registration Form (LWRF) Surname: Forenames: School of: Ext No.: Email YY Class of Laser to be Used 1 1M 1E 2 2M 3R 3B 4 Work Location(s) Lab No. Laser Work Currently Undertaken Elsewhere Are you currently engaged in work elsewhere involving laser radiation? YES

Martin, Ralph R.

354

Princeton Plasma Physics Lab - Lab Leadership  

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lab-leadership en Adam Cohen lab-leadership en Adam Cohen http://www.pppl.gov/people/adam-cohen

From Hot Cells to Hot PlasmasCohen approaches science challenges with practicalityBy John GreenwaldAdam Cohen grew up as the family handyman. "I was the kid who tacked down the carpet, repaired the roof, fixed the toilet and worked on the car," he said of his youth in northern New Jersey. "I would pull apart batteries and tear apart things and try to make them work again."That Mr. Fixit

355

Berkeley Lab Community Relations  

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Bay Campus Environmental/ Bay Campus Environmental/ Construction Info Long-Range Development Plan Laboratory Tours Friends of Berkeley Lab Community Activities Community News LBL LBL LBL LBL Twitter Eureka twitter Facebook Berkeley Rep facebook browercenter address UPDATES Check out Berkeley Lab on: Flickr logo Twitter logo Facebook logo YouTube logo Proposed Richmond Bay Campus: Visit our Richmond Bay Campus website for information and updates. Capital Projects Website: Berkeley Lab is in the process of upgrading existing buildings and facilities and is proceeding with the planning and construction of new buildings. The work will enable the Lab to address some of the most urgent scientific challenges of our time, such as climate change and energy security. Go here for more information on the projects.

356

Lab celebrates Earth Day  

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Lab celebrates Earth Day Lab celebrates Earth Day Community Connections: Our link to Northern New Mexico Communities Latest Issue:Dec. 2013 - Jan. 2014 All Issues » submit Lab celebrates Earth Day Multiple activities focus on environmental protection. May 1, 2013 A team from Industrial Hygiene and Safety during the Great Garbage Grab A team from Industrial Hygiene and Safety during the Great Garbage Grab. Contact Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email Great Garbage Grab From April 1 - 12 employees were encouraged to don work gloves and very attractive orange vests to pick up litter around their workplace-both on and off Lab property. This year's winner of the coveted Traveling Trash Trophy (for picking up the most litter) went to the Worker Safety and

357

Berkeley Lab - ARRA - Projects  

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Berkeley Lab Berkeley Lab Projects infrastructure Advanced Light Source User Support Building Total Project Cost: $35.1 million ARRA funding: $14.7 million The Advanced Light Source (ALS) User Support Building is a three-story, 30,928 gross-square-foot building that will house user-support operations at the ALS. It will include office and lab space for some 80 researchers. The $35-million project is funded by the DOE Office of Science. It will house experiment assembly spaces, conference rooms, and labs. The project is scheduled to be completed in 2011. Go here for more information. Bevatron demolition Total Project Cost: $50 million ARRA funding: $14.3 million Building 51, which houses the Bevatron, is an approximately 125,000 gross-square-foot, steel-frame structure built in the early 1950s. The

358

Berkeley Lab Energy Breakthroughs  

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11 Lab Breakthroughs that Improved Energy Efficiency Energy Saving Tips Home Energy Saver 11 Lab Breakthroughs that Improved Energy Efficiency Energy Saving Tips Home Energy Saver It all started during the 1973 energy crisis, when scientists from Lawrence Berkeley National Laboratory, a U.S. Department of Energy laboratory managed by the University of California, began to explore ways to improve energy efficiency in buildings and industry. Since then, Berkeley Lab has become a world leader in developing technologies and standards that have slashed energy costs by billions of dollars and helped bring energy-efficient products to your home. That same drive to bring energy efficiency to all facets of our lives continues today. AT BERKELEY LAB WE'VE: windows Turned windows into energy savers. Americans save billions of dollars in energy bills each year thanks to a

359

2012 - 08 | Jefferson Lab  

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Training Rescheduled for Tuesday and Wednesday Mon, 08272012 - 2:00pm Jefferson Lab Safety Culture Survey Underway Sun, 08262012 - 2:00pm Experimental Hall Off Limits After...

360

2003 | Jefferson Lab  

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December 2003 Wed, 12242003 - 1:00pm Jefferson Lab research into the pentaquark is ranked among the top science stories of 2003 November 2003 Wed, 11262003 - 1:00pm Former...

Note: This page contains sample records for the topic "lab laser accelerator" 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

2010 - 11 | Jefferson Lab  

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2010 - 12:00am Jefferson Lab leads the way toward clean cavities (Cryogenic Society of America, Inc.) Wed, 11102010 - 12:00am Navy's Superlaser Is More Than a Weapon (Wired.com...

362

2005 - 04 | Jefferson Lab  

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- 1:00pm Jefferson Lab's Detector Group builds small-animal imaging device for the German Cancer Research Center Wed, 04202005 - 1:00pm JLab, College of W&M researchers...

363

Visiting JLab | Jefferson Lab  

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Situated between Norfolk and Williamsburg, Newport News is easily accessible by air, automobile and train. Jefferson Lab is one of 17 national laboratories funded by the U.S....

364

2012 - 04 | Jefferson Lab  

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April 2012 Thu, 04262012 - 1:00pm Boron-Nitride Nanotubes Show Potential in Cancer Treatment Fri, 04202012 - 1:00pm Jefferson Lab Plans Open House for May 19...

365

2010 - 05 | Jefferson Lab  

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2:00pm Jefferson Lab Pager Change Out Deadline Today Wed, 05122010 - 2:00pm JLab Cybersecurity Alert: E-mail Phishing Attack Underway Wed, 05122010 - 2:00pm EEL Parking Lot...

366

LABS Foundational Technology  

SciTech Connect

They are the inventors of our generation dedicated to exceptional science, advancing the technologies of tomorrow. CO-LABS honors the outstanding achievements of researchers and their impact on the world.

None

2012-01-01T23:59:59.000Z

367

2012 - 05 | Jefferson Lab  

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Sat, 05052012 - 12:00am Jefferson Lab Hosts 2012 SPAFOA Members Meeting (Meyer Cryogenic, Vacuum and Pressure Technologies) Sat, 05052012 - 12:00am Cold Facts staff tour...

368

2003 - 09 | Jefferson Lab  

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08312003 - 11:00pm Four Experiments Give Evidence of an Exotic Baryon With Five Quarks 9Physics Today) Sun, 08312003 - 11:00pm Four labs find five-quark particle (CERN Courier...

369

2005 - 10 | Jefferson Lab  

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- 11:00pm Egad, Einstein: Jefferson Lab lecture offers a rare look at the great man (Daily Press) Tue, 10042005 - 11:00pm Investigating the Proton's Strange Sea (Cern Courier...

370

2002 - 04 | Jefferson Lab  

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to Save 12-Year-Old Boy Mon, 04222002 - 1:00pm Jefferson Lab Tech Associate Invents Lockout Device for Equipment with Removable Power Cords Mon, 04222002 - 1:00pm Six Local...

371

1998 | Jefferson Lab  

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November 1998 Sun, 11011998 - 12:00pm Draayer Elected as New SURA President October 1998 Thu, 10011998 - 12:00pm Jefferson Lab invites public to free lecture by author of...

372

2001 - 07 | Jefferson Lab  

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July 2001 Sun, 07222001 - 11:00pm Lab is Part of Project to Build Neutron Generator (The Virginian-Pilot) Sat, 07142001 - 11:00pm Interests and Advantages: High School, College...

373

2009 - 04 | Jefferson Lab  

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April 2009 Sun, 04192009 - 11:00pm Painting firm honored by Jefferson Lab (Daily Press) Sun, 04192009 - 11:00pm Hampton University awarded 1.3 million for breast cancer...

374

Facilities | Jefferson Lab  

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JLab Buildings Facilities Management & Logistics is responsible for performing or specifying performance of all Jefferson Lab facility maintenance. A D D I T I O N A L L I N K S:...

375

Sustainability | Jefferson Lab  

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Sustainability At Jefferson Lab Common sources of federal greenhouse gas emissions, according to the U.S. Department of Energy. A D D I T I O N A L L I N K S: Sustainability Home...

376

2011 - 04 | Jefferson Lab  

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April 2011 Tue, 04262011 - 1:00pm Harris Power Earns Jefferson Lab's Top Small Business Award for 2010 Wed, 04202011 - 1:00pm Students Use JLab Website to Prep for Virginia...

377

Berkeley Lab Media Advisory: Berkeley Lab Celebrates Its 75th Anniversary  

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Berkeley Lab Media Advisory Berkeley Lab Media Advisory For Information, Contact: For Immediate Release Ron Kolb: 510-486-7586, RRKolb@lbl.gov May 10, 2006 Berkeley Lab Celebrates Its 75th Anniversary in 2006 Since the day in late August of 1931 when young physics genius Ernest Orlando Lawrence was granted access to an old wooden building on the University of California campus in Berkeley to house his particle accelerator invention, the world of science has been transformed. And Lawrence's scientific progeny, conducting 75 years of seminal research in a variety of fields, have contributed greatly to that transformation. The legacy of Lawrence and his successors - who include nine other Nobel Laureates, scores of National Academy of Science members, and thousands of others who contributed to the institution's international reputation -

378

Terahertz-driven linear electron acceleration  

E-Print Network (OSTI)

The cost, size and availability of electron accelerators is dominated by the achievable accelerating gradient. Conventional high-brightness radio-frequency (RF) accelerating structures operate with 30-50 MeV/m gradients. Electron accelerators driven with optical or infrared sources have demonstrated accelerating gradients orders of magnitude above that achievable with conventional RF structures. However, laser-driven electron accelerators require intense sources and suffer from low bunch charge, sub-micron tolerances and sub-femtosecond timing requirements due to the short wavelength of operation. Here, we demonstrate the first linear acceleration of electrons with keV energy gain using optically-generated terahertz (THz) pulses. THz-driven accelerating structures enable high-gradient electron accelerators with simple accelerating structures, high repetition rates and significant charge per bunch. Increasing the operational frequency of accelerators into the THz band allows for greatly increased accelerating ...

Nanni, Emilio Alessandro; Ravi, Koustuban; Fallahi, Arya; Moriena, Gustavo; Miller, R J Dwayne; Krtner, Franz X

2014-01-01T23:59:59.000Z

379

Questions and Answers - Why did it take so long to build Jefferson Lab? Why  

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are the Halls inbio-dome shapes? are the Halls in<br>bio-dome shapes? Previous Question (Why are the Halls in bio-dome shapes?) Questions and Answers Main Index Next Question (What would happen if part of the accelerator were to break?) What would happen if part ofthe accelerator were to break? Why did it take so long to build Jefferson Lab? Why was Jefferson Lab built in Newport News? Newport News was one of several places around the nation that competed for Jefferson Lab. The Southeastern Universities Research Association (SURA) won the contract to build and run Jefferson Lab in Newport News. A couple reasons helped bring the Lab to this area: 1) The city and state governments worked hard with SURA to earn the Department of Energy's approval to bring the Lab here. (Good teamwork means

380

Subject Course Course Title 13-14 Lab Fee AGR 4911 Sr Honors Res Lab $100  

E-Print Network (OSTI)

Lab $100 AGED 4821 Adv Ed App Micro Lab $100 AGED 6011 Instr Methods Lab $100 AGED 6251 Teach Ag Mech Lab $150 AGED 6801 Digital Classrm Lab $100 AGED 6821 Adv Ed App Micro Lab $100 AGED 7361 Internshp Drain Irrig Lab $100 AGM 4051 Env Control Lab $100 AGM 4061 Mech & Hydro Sys Lab $100 AGM 4101 Precision

Duchowski, Andrew T.

Note: This page contains sample records for the topic "lab laser accelerator" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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381

Dr. Yuan Ping Lawrence Livermore National Lab  

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Creating, diagnosing and Creating, diagnosing and controlling high-energy- density matter with lasers Dr. Yuan Ping Lawrence Livermore National Lab Tuesday, Oct 22, 2013 - 3:00PM MBG AUDITORIUM Refreshments at 2:45PM The PrinceTon Plasma Physics laboraTory is a U.s. DeParTmenT of energy faciliTy Since their invention in 1960's, lasers with power spanning from Kilo- Watt to PetaWatt have been widely used in almost every branch of sci- ence, leading to numerous discoveries and novel techniques. At present, lasers are capable of creating extreme states of matter in a laboratory, at conditions resembling those most extreme in the Universe: they heat matter up to the temperatures inside stars, they create electric field and

382

Laser Seeding Yields High-Power Coherent Terahertz Radiation  

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Laser Seeding Yields High-Power Coherent Terahertz Radiation Print Researchers at Berkeley Lab have been exploring the ways coherent synchrotron radiation (CSR) is generated in...

383

E-Print Network 3.0 - accelerated charged particles Sample Search...  

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

"Space charge debunching and compensation in a laser particle acceleration system... Optronics, 2755 Northup Way, Bellevue, WA 98004-1495 Abstract. Laser ... Source: Brookhaven...

384

Top 10 Things You Didn't Know About the National Labs | Department...  

Office of Environmental Management (EM)

Lab. December 13, 2013 Los Alamos National Laboratory scientist Roger Wiens removes the laser safety plug on the ChemCam Mast Unit, selected for the Mars Science Laboratory rover,...

385

Electromagnetic Isotope Separation Lab (EMIS) | ORNL  

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Electromagnetic Isotope Separation Lab Electromagnetic Isotope Separation Lab May 30, 2013 ORNL established the Stable Isotope Enrichment Laboratory (SIEL) as part of a project funded by the DOE Office of Science, Nuclear Physics Program to develop a modernized electromagnetic isotope separator (EMIS), optimized for separation of a wide range of stable isotopes. The SIEL is located in the Building 6010 Shield Test Station, space formerly allocated to the Oak Ridge Electron Linear Accelerator, on the main campus of ORNL. ORNL staff have designed and built a nominal 10 mA ion current EMIS (sum of all isotopes at the collector) in the SIEL. This EMIS is currently being tested to determine basic performance metrics such as throughput and enrichment factor per pass. This EMIS unit and space will be used to

386

Supercomputing and Advanced Computing at the National Labs | Department of  

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

Energy.gov » Supercomputing and Advanced Computing at the National Energy.gov » Supercomputing and Advanced Computing at the National Labs Supercomputing and Advanced Computing at the National Labs RSS September 30, 2013 Lab Breakthrough: Supercomputing Power to Accelerate Fossil Energy Research Learn how a new supercomputer at the National Energy Technology Laboratory will accelerate research into the next generation of fossil fuel systems. September 26, 2013 Infographic by Sarah Gerrity, Energy Department. INFOGRAPHIC: Everything You Need to Know About Supercomputers In our newest infographic, we explain some of the complex terms associated with the speed, storage and processing on supercomputers; the game changing work being done with them; and the top 8 supercomputers that call the

387

New facility boosts Lab's ability to ship transuranic waste  

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Lab's ability to ship transuranic waste Lab's ability to ship transuranic waste New facility boosts Lab's ability to ship transuranic waste Construction has begun on a new facility that will help Los Alamos accelerate the shipment of transuranic waste stored in large boxes at Technical Area 54. February 9, 2012 Aerial view of Los Alamos National Laboratory Aerial view of Los Alamos National Laboratory. Contact Colleen Curran Communications Office (505) 664-0344 Email "375 Box Line" facility to allow workers to repackage radioactive items stored in large boxes LOS ALAMOS, New Mexico, February 9, 2012-Construction has begun on a new facility that will help Los Alamos National Laboratory accelerate the shipment of transuranic (TRU) waste stored in large boxes at Technical Area 54, Area G. The new "375 Box Line" facility will allow the Laboratory to repackage

388

National Lab Scientists Win Nobel Recognition | Department of Energy  

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

Lab Scientists Win Nobel Recognition Lab Scientists Win Nobel Recognition National Lab Scientists Win Nobel Recognition October 6, 2011 - 3:46pm Addthis Dr. Saul Perlmutter, who won the 2011 Nobel Prize in Physics, heads the Supernova Cosmology Project at Lawrence Berkeley National Laboratory. It was this team along with the High-z Supernova Search Team which found evidence of the accelerating expansion of the universe. Dr. Saul Perlmutter, who won the 2011 Nobel Prize in Physics, heads the Supernova Cosmology Project at Lawrence Berkeley National Laboratory. It was this team along with the High-z Supernova Search Team which found evidence of the accelerating expansion of the universe. Charles Rousseaux Charles Rousseaux Senior Writer, Office of Science Science is all about opening eyes and expanding horizons. This week,

389

ANU SNEAP 2011 Lab Report -14UD Nuclear Physics Department  

E-Print Network (OSTI)

the topics and invite your follow up enquiries. · Accelerator control via EPICS being commissioned · Vacuum oANU SNEAP 2011 Lab Report - 14UD Nuclear Physics Department Research School of Physics 7 new turbo systems installed 9 to be installed. o In-house manufacture of vacuum control units o

390

Tri-Lab Resources  

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Tri-Lab Resources Tri-Lab Resources Tri-Lab Computing Resources Computing resources available to Alliance users as of January 2012. Computing resources available Los Alamos Moonlight - 294 compute nodes, 4,704 cores, 488 TF system. Dual 8-core Intel Xeon (Sandy Bridge) processors with two NVIDIA Tesla GPUs per node, w/ InfiniBand. Mustang - 1,600 compute nodes, 38,400 cores, 353 TF system. 24-core AMD Opteron w/ InfiniBand. Mapache - 592 compute nodes, 4,736 cores, 50.4 TF system. SGI XE1300 dual-socket, quad-core Intel Nehalem processors w/ InfiniBand. Pinto - 154 compute nodes, 2,464 cores, 51.3 TF system. Dual 8-core Intel Xeon (Sandy Bridge) processors w/ Infiniband. Lawrence Livermore Cab - 1,296 nodes, 20,736 cores, 333-TF system. Dual 8-core Intel Xeon (Sandy Bridge) processors w/ InfiniBand. Additional information at Cab

391

About Berkeley Lab  

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Lab Lab Laboratory Organization Chart Divisional/Departmental Organization Charts Interactive Laboratory Map History of the Laboratory Nobel Laureates Image of A. Paul Alivisatos spacer DIRECTOR OF BERKELEY LAB A. Paul Alivisatos spacer Image of Horst D. Simon spacer DEPUTY LABORATORY DIRECTOR Horst Simon spacer Image of Glenn D. Kubiak spacer CHIEF OPERATING OFFICER Glenn D. Kubiak Image of Jay D. Keasling spacer ASSOCIATE LABORATORY DIRECTOR FOR BIOSCIENCES Jay D. Keasling spacer Image of Katherine Yelick spacer ASSOCIATE LABORATORY DIRECTOR FOR COMPUTING SCIENCES Katherine Yelick spacer Image of Don DePaolo spacer ASSOCIATE LABORATORY DIRECTOR FOR ENERGY AND ENVIRON-MENTAL SCIENCES Don DePaolo Image of James Symons spacer ASSOCIATE LABORATORY DIRECTOR

392

LASER TECHNOLOGY FOR PRECISION MONOENERGETIC GAMMA-RAY SOURCE R&D AT LLNL  

SciTech Connect

Generation of mono-energetic, high brightness gamma-rays requires state of the art lasers to both produce a low emittance electron beam in the linac and high intensity, narrow linewidth laser photons for scattering with the relativistic electrons. Here, we overview the laser systems for the 3rd generation Monoenergetic Gamma-ray Source (MEGa-ray) currently under construction at Lawrence Livermore National Lab (LLNL). We also describe a method for increasing the efficiency of laser Compton scattering through laser pulse recirculation. The fiber-based photoinjector laser will produce 50 {micro}J temporally and spatially shaped UV pulses at 120 Hz to generate a low emittance electron beam in the X-band RF photoinjector. The interaction laser generates high intensity photons that focus into the interaction region and scatter off the accelerated electrons. This system utilizes chirped pulse amplification and commercial diode pumped solid state Nd:YAG amplifiers to produce 0.5 J, 10 ps, 120 Hz pulses at 1064 nm and up to 0.2 J after frequency doubling. A single passively mode-locked Ytterbium fiber oscillator seeds both laser systems and provides a timing synch with the linac.

Shverdin, M Y; Bayramian, A; Albert, F; Anderson, S G; Betts, S M; Chu, T S; Cross, R R; Gibson, D J; Marsh, R; Messerly, M; Phan, H; Prantil, M; Wu, S; Ebbers, C; Scarpetti, R D; Hartemann, F V; Siders, C W; McNabb, D P; Bonanno, R E; Barty, C P

2010-04-20T23:59:59.000Z

393

FermiLab  

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

a high-energy physics laboratory, a high-energy physics laboratory, named after particle physicist pioneer Enrico Fermi, is located 30 miles west of Chicago. It is the home of the world's most powerful particle accelerator, the Tevatron, which was used to discover the top quark. For more information: Booster: There is a short linear accelerator and a 95 meter booster accelerator. Hydrogen is ionized (stripped of its electrons), leaving protons, which are accelerated to 8 GeV before injection into the main accelerator. Antiproton Production Protons are crashed into a target. Antiprotons found among the resulting particles are collected in the antiproton accumulator, and then sent in the opposite direction as the protons in the ring. Tevatron The main accelerator, the Tevatron is a synchrotron about 6.4

394

Labs and Field Site Histories | Department of Energy  

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

Historical Resources » Labs Historical Resources » Labs and Field Site Histories Labs and Field Site Histories Labs and Field Site Histories Note: Every effort is made to keep these links current and updated. Yet as many of the links below point to sites not under our direct control, some may stop working without warning . National Laboratories & Technology Centers Operations Offices & Field Sites Ames Laboratory (Iowa) -- History Chicago Office (Illinois) -- History Argonne National Laboratory (Illinois) -- Laboratory History and Timeline Fernald Environmental Management Project (Ohio) -- Site History Brookhaven National Laboratory (New York) -- Tour Brookhaven's History Grand Junction (Colorado) -- Site Description and History (pdf - less than 1MB) Fermi National Accelerator Laboratory (Illinois) -- History Idaho Operations Office (Idaho) -- Site History

395

Berkeley Lab: Educational Sites  

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Educational Sites Educational Sites The Center for Science & Engineering Education (CSEE) Berkeley Lab's Center for Science & Engineering Education (CSEE) carries out the Department of Energy's education mission to train the next generation of scientists, as well as helping them to gain an understanding of the relationships among frontier science, technology, and society. CSEE supports science literacy in the community and nationally through a broad range of programs from elementary school to undergraduate and graduate education, including internships, mentoring, school workshops and summer research programs for teachers. Through its broad range of programs, CSEE serves as the center for Berkeley Lab's science education efforts, developing partnerships with schools, government agencies, and non-profit

396

113 Lab Learning Objectives Week 5: synthetic lab #4  

E-Print Network (OSTI)

113 Lab Learning Objectives Week 5: synthetic lab #4 Learning Objectives for Promoter Discovery the information contained within promoters. · Use protocols for molecular biology to clone DNA. · Interpret

Campbell, A. Malcolm

397

113 Lab Learning Objectives Week 8: synthetic lab #7  

E-Print Network (OSTI)

113 Lab Learning Objectives Week 8: synthetic lab #7 Learning Objectives for Promoter Discovery Selection Skills · Read DNA sequence and search for SNPs using ApE software. · Determine your PTC tasting

Campbell, A. Malcolm

398

Summary - WTP Analytical Lab, BOF and LAW Waste Vitrification Facilities  

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

Wa Wa Schem DOE is Immob site's t facilitie Balanc Activity of this techno facilitie are su WTP d Readin The as along w Level ( * Tw 1. 2. The Ele Site: H roject: W Report Date: M ited States aste Trea Labo Why DOE matic of Laser Ab s constructing bilization Plant tank wastes. T es including an ces of Facilities y Waste (LAW assessment w ology elements es (LAB, BOF, fficiently matur design, which n ness Level of 6 What th ssessment team with each elem (TRL) for the L wo LAB system . Autosamplin Laser ablati AES/LA-ICP To view the full T http://www.em.doe. objective of a Tech ements (CTEs), usin Hanford/ORP Waste Treatme March 2007 Departmen atment a oratory, B E-EM Did This blation Analytical a Waste Treat (WTP) at Hanf The WTP is com n Analytical Lab s (BOF) operat ) Vitrification F was to identify t s (CTEs) in the

399

Working Together | Jefferson Lab  

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

main accelerating components, the cryomodules of the linac and the procurement of the cryogenic plant which provided the liquid helium, suitably conditioned to cool the cavities in...

400

2005 - 05 | Jefferson Lab  

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(Sea Power Magazine) Wed, 05042005 - 11:00pm Electrons reveal secrets of neutrinos ( CERN Courier) Wed, 05042005 - 11:00pm Accelerating: The College's Mutually Beneficial...

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401

Jefferson Lab: Research Highlights  

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Nuclear Physics Program Public Interest Nuclear Physics Accelerator FEL Medical Imaging Engineering Archive print version Experiment The Electric and Magnetic Elastic Proton Form...

402

E-Print Network 3.0 - acceleration measurement system Sample...  

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

30043. Summary: -stage energy gain and the maximum acceleration distance versus the laser crossing angle, subject to the system... for a laser-driven electron accelerator Y.C....

403

Extracellular Enzymes Lab Biochemistry  

E-Print Network (OSTI)

Extracellular Enzymes Lab Biochemistry · All organisms convert small organic compounds shown here: All of these reactions, of which there are more than 1000, are catalyzed by enzymes. Glucose Phosphate PathwayEMP Pathway #12;Amino Acids #12;More Complete Metabolic Network TOP #12;#12;Enzymes

Vallino, Joseph J.

404

Extracellular Enzymes Lab Biochemistry  

E-Print Network (OSTI)

Extracellular Enzymes Lab Biochemistry · All organisms convert small organic compounds by enzymes. Glucose (C6) Pentose (C5) Triose (C3) Pyruvate (C3) AcetylCoA (C2) Citrate (C6) Oxoglutarate (C5 Cycle Pentose Phosphate PathwayEMP Pathway #12;More Complete Metabolic Network TOP #12;#12;Enzymes

Vallino, Joseph J.

405

Videos | Jefferson Lab  

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video, Exploring the Nature of Matter. A D D I T I O N A L L I N K S: Brochures Posters Tours 12 GeV TEDF Visiting the Lab top-right bottom-left-corner bottom-right-corner...

406

Berkeley Lab Welcomes NUG  

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User Facilities Underpin Today's Berkeley Lab Over 7 ,000 v isi.ng s cien.sts ( 23 f rom u niversi.es) u se B erkeley L ab r esearch f acili.es e ach year --- 3 --- BIOSCIENCES...

407

Lab Breakthroughs | Department of Energy  

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

Lab Breakthroughs Lab Breakthroughs Lab Breakthroughs The Lab Breakthroughs series brings together video produced by each of the National Labs about their innovations and discoveries, and a Q&A with a project researcher about how they affect Americans. Here you can view the latest Q&As weekly, or view the full playlist on our YouTube page. The Lab Breakthroughs series brings together video produced by each of the National Labs about their innovations and discoveries, and a Q&A with a project researcher about how they affect Americans. Here you can view the latest Q&As weekly, or view the full playlist on our YouTube page. The Energy Department's 17 National Labs are world-class scientific

408

MagLab Feature Stories  

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problem-solve in a world-class laboratory. Read more. 2013 Feature Stories Date Subject December 17 MagLab Mentors Middle-Schoolers November 26 MagLab User Awarded the 2014...

409

CAP2002b_lasers.ppt  

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

Babzien Accelerator Test Facility e - 35 81.6 MHz Nd:YAG LINAC LASER LASER CO 2 x RF GUN e - 35 81.6 MHz Nd:YAG LINAC LASER LASER CO 2 x RF GUN Overview *ATF lasers since 2000...

410

Directory | Princeton Plasma Physics Lab  

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Procurement Division Technology Transfer Furth Plasma Physics Library Contact Us Lab Leadership Directory Careers Human Resources Environment, Safety & Health Procurement...

411

BNL | Accelerators for Applied Research  

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

Accelerators for Applied Research Accelerators for Applied Research Brookhaven National Lab operates several accelerator facilities dedicated to applied research. These facilities directly address questions and concerns on a tremendous range of fields, including medical imaging, cancer therapy, computation, and space exploration. Leading scientists lend their expertise to these accelerators and offer crucial assistant to collaborating researchers, pushing the limits of science and technology. Interested in gaining access to these facilities for research? See the contact number listed for each facility. RHIC tunnel Brookhaven Linac Isotope Producer The Brookhaven Linac Isoptope Producer (BLIP)-positioned at the forefront of research into radioisotopes used in cancer treatment and diagnosis-produces commercially unavailable radioisotopes for use by the

412

Future Accelerators (?)  

E-Print Network (OSTI)

I describe the future accelerator facilities that are currently foreseen for electroweak scale physics, neutrino physics, and nuclear structure. I will explore the physics justification for these machines, and suggest how the case for future accelerators can be made.

John Womersley

2003-08-09T23:59:59.000Z

413

Linear Accelerator  

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Linear Accelerator (LINAC) The core of the LANSCE facility is one of the nation's most powerful proton linear accelerators or LINAC. The LINAC at LANSCE has served the nation since...

414

Recent Advances in Plasma Acceleration  

SciTech Connect

The costs and the time scales of colliders intended to reach the energy frontier are such that it is important to explore new methods of accelerating particles to high energies. Plasma-based accelerators are particularly attractive because they are capable of producing accelerating fields that are orders of magnitude larger than those used in conventional colliders. In these accelerators a drive beam, either laser or particle, produces a plasma wave (wakefield) that accelerates charged particles. The ultimate utility of plasma accelerators will depend on sustaining ultra-high accelerating fields over a substantial length to achieve a significant energy gain. More than 42 GeV energy gain was achieved in an 85 cm long plasma wakefield accelerator driven by a 42 GeV electron drive beam in the Final Focus Test Beam (FFTB) Facility at SLAC. Most of the beam electrons lose energy to the plasma wave, but some electrons in the back of the same beam pulse are accelerated with a field of {approx}52 GV/m. This effectively doubles their energy, producing the energy gain of the 3 km long SLAC accelerator in less than a meter for a small fraction of the electrons in the injected bunch. Prospects for a drive-witness bunch configuration and high-gradient positron acceleration experiments planned for the SABER facility will be discussed.

Hogan, Mark

2007-03-19T23:59:59.000Z

415

Infrastructure iThemba LABS' infrastructure is based at two sites, namely  

E-Print Network (OSTI)

. Current and future projects iThemba Labs is committed to: ·developing a beamsplitter capable of delivering-MV Tandem Accelerator. Particle beams delivered by the accelerator are used for low energy nuclear two beams of different intensities, thereby increasing the production of radionuclides, ·establishing

Wagner, Stephan

416

National Labs | Department of Energy  

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

National Labs National Labs Special Feature: National Security & Public Safety at the National Labs This month on energy.gov, learn how the National Labs are advancing the national security and public safety interests of the United States. Read more Top 10 Things You Didn't Know About Los Alamos National Laboratory From national security science to supercomputing, Los Alamos National Lab is leading the way in protecting the American public, countering global threats and solving emerging energy challenges. Read more Energetic Science and Piranha-Proof Armor Learn how Berkeley Lab's Advanced Light Source is revealing the unique structure of incredible, adaptable fish armor. Read more Top 10 Things You Didn't Know About Lawrence Livermore National Laboratory From nuclear security to supercomputing, Lawrence Livermore National Lab is

417

National Labs | Department of Energy  

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

National Labs National Labs Special Feature: National Security & Public Safety at the National Labs This month on energy.gov, learn how the National Labs are advancing the national security and public safety interests of the United States. Read more Top 10 Things You Didn't Know About Los Alamos National Laboratory From national security science to supercomputing, Los Alamos National Lab is leading the way in protecting the American public, countering global threats and solving emerging energy challenges. Read more Energetic Science and Piranha-Proof Armor Learn how Berkeley Lab's Advanced Light Source is revealing the unique structure of incredible, adaptable fish armor. Read more Top 10 Things You Didn't Know About Lawrence Livermore National Laboratory From nuclear security to supercomputing, Lawrence Livermore National Lab is

418

Scientific Labs | Neutron Science | ORNL  

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

Scientific Labs Scientific Labs SHARE SNS Scientific Labs Meilleur-lab-students-300.jpg Students in the SNS chemistry lab practice pipetting water. A new complex of laboratories is now open at SNS, providing a flexible, mobile environment where users can work efficiently. The labs, on the second floor of the SNS Central Laboratory and Office Building, are built with "green" operations in mind, as well as to optimize the available space for researchers' ever-changing scientific needs. With overhead utilities and mobile furniture, the complex's 13 labs allow staff to easily reconfigure the layout of equipment and quickly change an experiment's setup as needed. "We surveyed more than 900 users on what they needed, and they gave us a wish list," says Chrissi Schnell, the Neutron Scattering Science Division

419

Electron Microscopy Lab  

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Facilities » Facilities » Electron Microscopy Lab Electron Microscopy Lab Focusing on the study of microstructures with electron and ion beam instruments, including crystallographic and chemical techniques. April 12, 2012 Transmission electron microscope Rob Dickerson examines a multiphase oxide scale using the FEI Titan 80-300 transmission electron microscope. Contact Rob Dickerson (505) 667-6337 Email Rod McCabe (505) 606-1649 Email Pat Dickerson (505) 665-3036 Email Tom Wynn (505) 665-6861 Email Dedicated to the characterization of materials through imaging, chemical, and crystallographic analyses of material microstructures in support of Basic Energy Science, Laboratory Directed Research and Development, DoD, DOE, Work for Others, nuclear energy, and weapons programs. Go to full website »

420

Ion Beam Materials Lab  

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

Facilities » Facilities » Ion Beam Materials Lab Ion Beam Materials Lab A new research frontier awaits! Our door is open and we thrive on mutually beneficial partnerships, collaborations that drive innovations and new technologies. April 12, 2012 Ion Beam Danfysik Implanter High Voltage Terminal. Contact Yongqiang Wang (505) 665-1596 Email Devoted to the characterization and modification of surfaces through the use of ion beams The Ion Beam Materials Laboratory (IBML) is a Los Alamos National Laboratory resource devoted to the characterization and modification of surfaces through the use of ion beams. The IBML provides and operates the core facilities, while supporting the design and implementation of specific apparati needed for experiments requested by users of the facility. The result is a facility with

Note: This page contains sample records for the topic "lab laser accelerator" 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

PC/104 Embedded IOCs at Jefferson Lab  

SciTech Connect

Jefferson Lab has developed embedded IOCs based on PC/104 single board computers (SBC) for low level control systems. The PC/104 IOCs run EPICS on top of the RTEMS operating system. Two types of control system configurations are used in different applications, PC/104 SBC with commercial PC/104 I/O cards and PC/104 SBC with custom designed FPGA-based boards. RTEMS was built with CEXP shell to run on the PC/104 SBC. CEXP shell provides the function of dynamic object loading, which is similar to the widely used VxWorks operating system. Standard software configurations were setup for PC/104 IOC application development to provide a familiar format for new projects as well as ease the conversion of applications from VME based IOCs to PC/104 IOCs. Many new projects at Jefferson Lab are going to employ PC/104 SBCs as IOCs and some applications have already been running them for accelerator operations. The PC/104 - RTEMS IOC provides a free open source Real-Time Operating System (RTOS), low cost/maintenance, easily installed/ configured, flexible, and reliable solution for accelerator control and 12GeV Upgrade projects.

Jianxun Yan, Trent Allison, Sue Witherspoon, Anthony Cuffe

2009-10-01T23:59:59.000Z

422

The National Labs on Flickr | Department of Energy  

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

Flickr Flickr The National Labs on Flickr The interior of the National Ignition Facility target chamber at Lawrence Livermore National Laboratory. The service module carrying technicians can be seen on the left. The target positioner, which holds the target, is on the right. | Photo courtesy of Lawrence Livermore National Laboratory. The interior of the National Ignition Facility target chamber at Lawrence Livermore National Laboratory. The service module carrying technicians can be seen on the left. The target positioner, which holds the target, is on the right. | Photo courtesy of Lawrence Livermore National Laboratory. EXPLORE THE NATIONAL LABS ON FLICKR Ames Laboratory Argonne National Laboratory Brookhaven National Laboratory Fermi National Accelerator Laboratory

423

Berkeley Lab: 80 Years of Excellence in Science | Department of Energy  

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

Berkeley Lab: 80 Years of Excellence in Science Berkeley Lab: 80 Years of Excellence in Science Berkeley Lab: 80 Years of Excellence in Science September 2, 2011 - 11:45am Addthis Berkeley Lab: 80 Years of Excellence in Science Kate Bannan Communications and Outreach Specialist Congratulations to Lawrence Berkeley National Laboratory, which celebrated its 80th anniversary on August 26. Berkeley Lab was founded in 1931 by Ernest Orlando Lawrence, a University of California Berkeley physicist who won the 1939 Nobel Prize in physics for his invention of the cyclotron, a circular particle accelerator that opened the door to high-energy physics. It was Lawrence's belief that scientific research is best done through teams of individuals with different fields of expertise working together. His teamwork concept is a Berkeley Lab legacy that continues today.

424

2000 - 03 | Jefferson Lab  

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

Virginian-Pilot) Wed, 03012000 - 12:00am CLAS at Jefferson Offers a New Subnuclear View (CERN Courier) Wed, 03012000 - 12:00am Free-Electron Laser Passes 1-kW Goal (Burrelle's...

425

1998 | Jefferson Lab  

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

Center Mon, 08311998 - 11:00pm Jefferson First Light from New Free-Electron Laser (CERN Courier) August 1998 Fri, 08281998 - 11:00pm Breast Cancer Detector to Begin...

426

2004 - 08 | Jefferson Lab  

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

August 2004 Sun, 08152004 - 11:00pm The Science of Things (The Post and Courier, Charleston.net) Mon, 08022004 - 11:00pm Free-electron laser reaches 10-kW output...

427

2003 - 08 | Jefferson Lab  

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

August 2003 Sun, 08172003 - 11:00pm Navy Tries Again With Laser (The Virginian-Pilot) Mon, 08042003 - 11:00pm August 5, 2003, update on the furthering search for evidence of...

428

2001 - 06 | Jefferson Lab  

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June 2001 Sun, 06242001 - 11:00pm Neutron Source Moves Toward Reality (New Technology Week) Wed, 06062001 - 11:00pm Funding Will Boost UV Laser Research (Daily Press...

429

1998 - 06 | Jefferson Lab  

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June 1998 Sun, 06281998 - 11:00pm FEL Shines Bright in Debut (Virginia Business Observer) Sat, 06201998 - 11:00pm Laser Breaks Record (Richmond Times-Dispatch) Thu, 06181998...

430

Laser and Spectroscopy Facility Center For Microanalysis of Materials  

E-Print Network (OSTI)

Laser and Spectroscopy Facility Center For Microanalysis of Materials Frederick Seitz Materials Research Laboratory Form revised 03 November 2009 Precautions for the safe use of lasers 1. NEVER LOOK DIRECTLY INTO ANY LASER BEAM, REGARDLESS OF POWER. 2. The lab door safety lamp "LASER in USE" must

Braun, Paul

431

MagLab - MagLab Dictionary: Megawatt (Transcript)  

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

Megawatt As explained by Bryon Dalton, Magnet Operations director. Substation This substation furnishes the MagLab with its 56 megawatts of electricity. Our magnets here at the...

432

LabWindows/CVI" LabWindows/CVI National  

E-Print Network (OSTI)

) ANSI C, , : 1. ­ , , , , . (User Interface Library). 2. (VISA Library. ­ , , (Analysis Library, Advanced Analysis Library). 5. ANSI C. DDE, ActiveX, , .NET, . Lab

433

MagLab - MagLab Dictionary: Hybrid Magnet (Transcript)  

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

Hybrid Magnet As explained by Scott Hannahs, DC Facilities & Instrumentation director. Hybrid magnet The lab's world-record 45 tesla hybrid magnet. The premier magnet system at the...

434

Secretary of Energy Advisory Board SLAC National Accelerator Laboratory  

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

SLAC National Accelerator Laboratory SLAC National Accelerator Laboratory Menlo Park, CA April 11, 2011 Agenda Open Plenary Meeting Session 8:00 AM - 8:15 AM Welcome and Overview Dr. William Perry 8:15 AM - 8:45 AM Key Issues for DOE Secretary Steven Chu 9:00 AM - 9:45 AM SLAC Overview Persis Drell 9:45 AM - 10:15 AM Breakthrough in Protein Structure Determination Enabled by LCLS Henry Chapman 10:15 AM - 11:00 AM Lab Overview - Progress and Path Forward George Miller 11:00 AM - 11:45 AM Stockpile Stewardship Overview Bruce Goodwin 11:45 AM - 12:30 PM Energy of the Future - National Ignition Facility (NIF) and Laser Inertial Fusion Energy (LIFE) Ed Moses 12:30 PM - 1:45 PM Lunch Break 2:00 PM - 2:30 PM Subcommittee Reports 2:30 PM - 3:30 PM Discussion of DOD-DOE MOU

435

Scientific Labs | ORNL Neutron Sciences  

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

New Nanomaterials-Handling Laboratory opens at SNS New Nanomaterials-Handling Laboratory opens at SNS Rhonda Moody (far right) shows visitors the new nanomaterials lab in the SNS Central Laboratory and Office Building. Rhonda Moody (far right) trains scientific associates in the new nanomaterials lab. The associates provide support for users and staff at the instrument beam lines. (Click for larger image.) The nanomaterials lab on the second floor (near the users area) of the SNS CLO provides researchers with new equipment, as well as additional space. The nanomaterials lab on the second floor (near the users area) of the SNS CLO provides researchers with new equipment, as well as additional space. (Click for larger image.) A new nanomaterials-handling lab recently opened in the second floor lab suites (G-202A) of the SNS Central Laboratory and Office Building (CLO).

436

Beam Coupling to Optical Scale Accelerating Structures  

SciTech Connect

Current research efforts into structure based laser acceleration of electrons utilize beams from standard RF linacs. These beams must be coupled into very small structures with transverse dimensions comparable to the laser wavelength. To obtain decent transmission, a permanent magnet quadrupole (PMQ) triplet with a focusing gradient of 560 T/m is used to focus into the structure. Also of interest is the induced wakefield from the structure, useful for diagnosing potential accelerator structures or as novel radiation sources.

Sears, C.M.; Byer, R.L.; Colby, E.R.; Cowan, B.M.; Ischebeck, R.; Lincoln, M.R.; Siemann, R.H.; Spencer, J.E.; /SLAC; Plettner, T.; /Stanford U., Phys. Dept.

2007-03-27T23:59:59.000Z

437

Beam Coupling to Optical Scale Accelerating Structures  

SciTech Connect

Current research efforts into structure based laser acceleration of electrons utilize beams from standard RF linacs. These beams must be coupled into very small structures with transverse dimensions comparable to the laser wavelength. To obtain decent transmission, a permanent magnet quadrupole (PMQ) triplet with a focusing gradient of 560 T/m is used to focus into the structure. Also of interest is the induced wakefield from the structure, useful for diagnosing potential accelerator structures or as novel radiation sources.

Sears, Christopher M. S.; Colby, Eric R.; Cowan, Benjamin M.; Ischebeck, Rasmus; Lincoln, Melissa R.; Siemann, Robert H.; Spencer, James E. [Stanford Linear Accelerator Center, Menlo Park, CA 94025 (United States); Byer, Robert L.; Plettner, Tomas [Stanford University, Stanford, CA 94305 (United States)

2006-11-27T23:59:59.000Z

438

Vehicle Systems Integration Laboratory Accelerates Powertrain Development  

ScienceCinema (OSTI)

ORNL's Vehicle Systems Integration (VSI) Laboratory accelerates the pace of powertrain development by performing prototype research and characterization of advanced systems and hardware components. The VSI Lab is capable of accommodating a range of platforms from advanced light-duty vehicles to hybridized Class 8 powertrains with the goals of improving overall system efficiency and reducing emissions.

None

2014-06-25T23:59:59.000Z

439

Acceleration Fund  

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

for these Venture Acceleration Fund awards, which have already produced a significant return on investment for the regional companies that have received them," said Padilla....

440

Currents, Berkeley Lab's Biweekly Newspaper  

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

Currents Index A-Z Index Search Phone Book Comments Ernest Orlando Lawrence Berkeley National Laboratory Search Currents Back Issues (1994 to present) Search Lab science articles...

Note: This page contains sample records for the topic "lab laser accelerator" 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

Organization | Princeton Plasma Physics Lab  

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Environment, Safety & Health Procurement Division Technology Transfer Furth Plasma Physics Library Contact Us Lab Leadership Directory Careers Human Resources Environment, Safety...

442

Physics of Dance | Jefferson Lab  

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scheduled Spring Science Series lectures http:education.jlab.orgscienceseriesindex.php Jefferson Lab is managed and operated for the U.S. Department of Energy's Office of...

443

Education | Princeton Plasma Physics Lab  

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

Education Science Education Welcome to the Science Education Department at the Princeton Plasma Physics Laboratory (PPPL), where we combine the lab's core research activities with...

444

Sandia National Laboratories: Optics Lab  

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

Engine Test Facility Central Receiver Test Facility Power Towers for Utilities Solar Furnace Dish Test Facility Optics Lab Parabolic Dishes Work For Others (WFO) User...

445

Laser Cosmology  

E-Print Network (OSTI)

Recent years have seen tremendous progress in our understanding of the cosmos, which in turn points to even deeper questions to be further addressed. Concurrently the laser technology has undergone dramatic revolutions, providing exciting opportunity for science applications. History has shown that the symbiosis between direct observations and laboratory investigation is instrumental in the progress of astrophysics. We believe that this remains true in cosmology. Current frontier phenomena related to particle astrophysics and cosmology typically involve one or more of the following conditions: (1) extremely high energy events; (2) very high density, high temperature processes; (3) super strong field environments. Laboratory experiments using high intensity lasers can calibrate astrophysical observations, investigate underlying dynamics of astrophysical phenomena, and probe fundamental physics in extreme limits. In this article we give an overview of the exciting prospect of laser cosmology. In particular, we showcase its unique capability of investigating frontier cosmology issues such as cosmic accelerator and quantum gravity.

Pisin Chen

2014-02-24T23:59:59.000Z

446

Eight National Labs Offer Streamlined Partnership Agreements to Help  

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

Eight National Labs Offer Streamlined Partnership Agreements to Eight National Labs Offer Streamlined Partnership Agreements to Help Industry Bring New Technologies to Market Eight National Labs Offer Streamlined Partnership Agreements to Help Industry Bring New Technologies to Market February 23, 2012 - 12:38pm Addthis Washington, D.C. - Energy Secretary Steven Chu today announced that eight of the Department's national laboratories will participate in a pilot initiative to make it easier for private companies to utilize the laboratories' research capabilities. The program will harness America's unique advantages in innovation to create jobs and accelerate the development of new clean energy technologies. "The Agreements for Commercializing Technology will cut red tape for businesses and startups interested in working with our nation's crown

447

Guidelines for Vocal Tract Development Lab (VT Lab) team members to access the VT Lab WebSpace via the VT Lab website  

E-Print Network (OSTI)

Guidelines for Vocal Tract Development Lab (VT Lab) team members to access the VT Lab WebSpace via the VT Lab website The VTLab WebSpace is a new and improved mechanism for VT lab team members to share files. We are replacing the former Member Login section of our website with MyWeb Space (developed by Do

Vorperian, Houri K.

448

New Laser's "First Light" Shatters Record | Jefferson...  

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

National Accelerator Facility have delivered first light from their Free Electron Laser (FEL). Only 2 years after ground was broken for the FEL, infrared light of more than...

449

Technology Transfer at Berkeley Lab: For Berkeley Lab Researchers  

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

Steven Chu Steven Chu "Technology transfer is a superb opportunity to demonstrate the value of our discoveries and to benefit society. It is an area I would like to see grow." Steve Chu, Secretary, US Department of Energy, and Former Lab Director What You Need to Know and Do What you, as a Berkeley Lab researcher or guest, need to do to protect the intellectual property you create to meet Lab requirements and how publishing and pursuing a patent are fully compatible. The Tech Transfer Proces The steps to patent, market and commercialize an invention and the role of Technology Transfer and Intellectual Property Management (TTIPM). Business Development Services Resources available within TTIPM to help move your technology to market. Berkeley Lab LaunchPad Services available at the Lab and beyond to help launch your startup

450

Jefferson Lab: New opportunities in hadronic physics  

SciTech Connect

Jefferson Lab (JLab) is a fundamental research laboratory located in Newport News (Virginia-USA) whose primary mission is to explore the fundamental nature of confined states of quarks and gluons. It consists of a high-intensity electron accelerator based on continuous wave superconducting radio frequency technology and a sophisticated array of particle detectors. The design features and excellent performance of the accelerator made it possible to plan an upgrade in energy from 6 to 12 GeV without substantially altering the construction scheme of the accelerator. The program includes the construction of major new experimental facilities for the existing three Halls, A, B, C and the construction of the new experimental Hall D. The research program that motivated the upgrade in energy includes: the study of the nucleon "tomography" through the study of generalized parton distribution functions (GPDs) and transverse momentum dependent parton distribution functions (TMDs), the study of exotics and hybrid mesons to explore the nature of the quarks confinement, precision test of the Standard Model through parity-violating electron scattering experiments. Major highlights of the program at 6 GeV will be presented as well as an overview of the 12 GeV physics program.

Rossi, Patrizia [JLAB

2014-11-01T23:59:59.000Z

451

Laser Roadshow  

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

outreach Laser Roadshow The NIF Laser Roadshow includes a number of interactive laser demonstrations (Laser Light Fountain, Laser DJ, and NIF "3D ride") that have traveled across...

452

Accelerating the transfer in Technology Transfer  

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

Accelerating the transfer in Technology Transfer Accelerating the transfer in Technology Transfer Community Connections: Our link to Northern New Mexico Communities Latest Issue:Dec. 2013 - Jan. 2014 All Issues » submit Accelerating the transfer in Technology Transfer Express Licensing fast tracks commercialization. May 1, 2013 Division Leader Dave Pesiri Division Leader Dave Pesiri. Contact Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email Express Licensing program To better serve its partners, one of the first improvements the Lab's Technology Transfer Division (TT) has made is through its new Express Licensing initiative. Standardized license agreements and fee structures will remove long and complicated negotiations and decrease the time required to get patented Lab technology and software into the hands of

453

Lab transitions employee giving campaigns  

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

Lab transitions employee giving campaigns Lab transitions employee giving campaigns Community Connections: Our link to Northern New Mexico Communities Latest Issue:Dec. 2013 - Jan. 2014 All Issues » submit Lab transitions employee giving campaigns This year's theme: "I Give Because..." November 1, 2013 Employee Giving Logo The theme for this year's employee giving campaigns Contact Community Programs Office Director Kurt Steinhaus Email Editor Linda Anderman Email During the past seven years contributions to the Lab's annual employee giving campaign have risen by 370 percent and hopes to surpass the $3.1 million amount collected last year. As in past years, that amount includes a $1 million dollar match from the Lab's manager, Los Alamos National Security, LLC (LANS). The funds support nonprofits within the region and

454

MagneticsLab  

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

Magnetics Laboratory Magnetics Laboratory Manufacturing Technologies The Magnetics Lab provides customers with design, prototyping, packaging solutions and production of unique magnetic and resistive components from millivolts to extremely high voltage (250KV) components. Capabilities * Design review of specification and requirements * Design and develop from sketches, verbal ideas, or circuit design parameters * Coil windings of any size or configuration * Coil diameter from 0.1 to 24 inches * Low temperature and high temperature coils * Precision resistors from 0.1 ohms to 2 megaohms (non-inductive) * Special high voltage transformers (2KV to 250KV) and high voltage loads (38K ohms to 100K ohms and 2KV to 250KV) Resources * Computer Aided Mechanical Design (Solid Works 3D CAD System) for mechanical

455

AMERICA'S NATIONAL LABS  

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

AMERICA'S AMERICA'S NATIONAL LABS by 50 50 M A D E IN U S A B r e a k t h r o u g h s America's National Laboratory system has been changing and improving the lives of millions for more than 80 years. Born at a time of great societal need, this network of Department of Energy Laboratories has now grown into 17 facilities, working together as engines of prosperity and invention. As this list of 50 Break- throughs attests, National Laboratory discoveries have spawned industries, saved lives, generated new products, fired the imagination, and helped to reveal the secrets of the universe. Rooted in the need to be the best and bring the best, America's National Laboratories have put an American stamp on the past century of science. With equal ingenuity and tenacity, they are now engaged in

456

Berkeley Lab Nobel Laureates  

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

George F. Smoot III George F. Smoot III 2006 Nobel Prize for Physics • October 3, 2006 Press Conference (Video) • Bibliography of Dr. Smoot's Works • October 3, 2006 Press Conference (Video) The October 3, 2006 press conference at Berkeley Lab introducing its newest Nobel Prize winner, George Smoot, to a throng of visiting media is available for viewing online. George F. Smoot III, Nobel Prize recipient, 2006 • Bibliography of Dr. Smoot's Works LBL-6468: Detection of anisotropy in the cosmic blackbody radiation LBL-6493: Radiometer system to map the cosmic background radiation LBL-7553: Abundances and spectra for cosmic ray nuclei from Li to Fe for 2-GeV/n to 150-GeV/n LBL-8266: Search for linear polarization of the cosmic background radiation LBL-9282: Southern hemisphere measurements of the anisotropy in the cosmic

457

Lab announces selection of Venture Acceleration Fund recipients  

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

amount of vitamins and minerals used to fortify baby formula and energy drinks. For the pharmaceutical industry, the EPD device provides a much needed, field portable tool to...

458

Fermi National Accelerator Lab: Progress on a Grand Design  

Science Journals Connector (OSTI)

...support for the National Institutes of Health re-search and training programs. Ford...have been obligated. With the "kitty" depleted, there will no longer be a cushion for...and chemically extract the remaining uranium and its by-product plutonium for later...

John Walsh

1974-08-30T23:59:59.000Z

459

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

460

EXPERIENCE WITH COLLABORATIVE DEVELOPMENT FOR THE SPALLATION NEUTRON SOURCE FROM A PARTNER LAB PERSPECTIVE.  

SciTech Connect

Collaborative development and operation of large physics experiments is fairly common. Less common is the collaborative development or operation of accelerators. A current example of the latter is the Spallation Neutron Source (SNS). The SNS project was conceived as a collaborative effort between six DOE facilities. In the SNS case, the control system was also developed collaboratively. The SNS project has now moved beyond the collaborative development phase and into the phase where Oak Ridge National Lab (ORNL) is integrating contributions from collaborating ''partner labs'' and is beginning accelerator operations. In this paper, the author reflects on the benefits and drawbacks of the collaborative development of an accelerator control system as implemented for the SNS project from the perspective of a partner lab.

HOFF, L.T.

2005-10-10T23:59:59.000Z

Note: This page contains sample records for the topic "lab laser accelerator" 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

Accelerate Energy  

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

the next year, the U.S. Department of Energy, the Council on Competitiveness and the Alliance to Save Energy will join forces to undertake Accelerate Energy Productivity 2030 - an...

462

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

463

SciTech Connect: Compact X-ray Free Electron Laser from a Laser...  

Office of Scientific and Technical Information (OSTI)

Gradient Undulator Compact laser-plasma accelerators can produce high energy electron beams with low emittance, high peak current but a rather large energy spread. The large...

464

Accelerated Testing Validation  

E-Print Network (OSTI)

the University of California. Accelerated Testing Validationmaterials requires relevant Accelerated Stress Tests (ASTs),

Mukundan, Rangachary

2013-01-01T23:59:59.000Z

465

CMS e-Lab Overview  

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

CMS e-Lab Overview     CMS e-Lab Overview &nbsp&nbsp&nbsp With the CMS e-Lab students can join a scientific collaboration in this series of studies of high-energy collisions from the Large Hadron Collider (LHC) at CERN. We are collaborating with the Compact Muon Solenoid (CMS) experiment to produce a student-led, teacher-guided project. At the present, we have test beam, Monte Carlo (simulated) data and run data. We expect more data through 2010 and 2011. By using the web, students are able to analyze and share these data with fellow students and other researchers. Students write a researchable question and analyze data in much the same way as professional scientists. e-Lab tools facilitate collaboration among students as they develop their investigations and report their results.

466

State of the Lab 2012  

ScienceCinema (OSTI)

Ames Laboratory Director Alex King delivers the annual State of the Lab address on Thursday, May 17, 2012, the 65th Anniversary of the founding of The Ames Laboratory. This video contains highlights from the address.

King, Alex

2013-03-01T23:59:59.000Z

467

State of the Lab 2012  

SciTech Connect

Ames Laboratory Director Alex King delivers the annual State of the Lab address on Thursday, May 17, 2012, the 65th Anniversary of the founding of The Ames Laboratory. This video contains highlights from the address.

King, Alex

2012-01-01T23:59:59.000Z

468

MagLab - User Awards  

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

Users Hub Arrow User Awards Scientists who do research at the MagLab are often honored for their excellent work. Christopher Reddy 2014 C.C. Patterson Award (December 2013) Chris...

469

MagLab - Magnet Milestones  

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

Arrow Magnet Milestones MagLab U logo Find out about some of the key events in magnet history. We are adding to this list over time, so check back again soon for new entries....

470

Using MyMathLab  

E-Print Network (OSTI)

... that have used MyMathLab (CourseCompass) previously, there is a 'new look' to ... These videos correspond to a disk that you may have purchased with your...

471

Pulse - Accelerator Science in Medicine  

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

t he future of accelerator physics isn’t just for physicists. As in the past, tomorrow’s discoveries in particle accelerator science may lead to unexpected applications for medical diagnosis, healing and the understanding of human biology. t he future of accelerator physics isn’t just for physicists. As in the past, tomorrow’s discoveries in particle accelerator science may lead to unexpected applications for medical diagnosis, healing and the understanding of human biology. Breakthroughs in the technology of superconducting magnets, nanometer beams, laser instrumentation and information technology will give high-energy physicists new accelerators to explore the deepest secrets of the universe: the ultimate structure of matter and the nature of space and time. But breakthroughs in accelerator science may do more than advance the exploration of particles and forces. No field of science is an island. Physics, astronomy, chemistry, biology, medicine— all interact in the continuing human endeavor to explore and understand our world and ourselves. Research at high-energy physics laboratories will lead to the next generation of particle accelerators—and perhaps to new tools for medical science.

472

Plasma-based Accelerator with Magnetic Compression  

SciTech Connect

Electron dephasing is a major gain-inhibiting effect in plasma-based accelerators. A novel method is proposed to overcome dephasing, in which the modulation of a modest (#24; O(10 kG)), axial, uniform magnetic field in the acceleration channel leads to densification of the plasma through magnetic compression, enabling direct, time-resolved control of the plasma wave properties. The methodology is broadly applicable and can be optimized to improve the leading acceleration approaches, including plasma beat-wave, plasma wakefield, and laser wakefield acceleration. The advantages of magnetic compression compared to other proposed schemes to overcome dephasing are identified.

Paul F. Schmit and Nathaniel J. Fisch

2012-06-28T23:59:59.000Z

473

Application Acceleration  

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

Acceleration Acceleration on Current and Future Cray Platforms Alice Koniges, Robert Preissl, Jihan Kim, Lawrence Berkeley National Laboratory David Eder, Aaron Fisher, Nathan Masters, Velimir Mlaker, Lawrence Livermore National Laboratory Stephane Ethier, Weixing Wang, Princeton Plasma Physics Laboratory Martin Head-Gordon, University of California, Berkeley and Nathan Wichmann, Cray Inc. ABSTRACT: Application codes in a variety of areas are being updated for performance on the latest architectures. We describe current bottlenecks and performance improvement areas for applications including plasma physics, chemistry related to carbon capture and sequestration, and material science. We include a variety of methods including advanced hybrid parallelization using multi-threaded MPI, GPU acceleration, libraries and auto- parallelization compilers. KEYWORDS: hybrid

474

Lab One 01-26 & 01-28 Introduction to the GIS Lab  

E-Print Network (OSTI)

Lab One 01-26 & 01-28 Introduction to the GIS Lab Introduction to the lab: 1) There are three GIS) GIS lab etiquette: DO NOT enter the instruction lab when another class is in session; move to another if using sound. 4) Operating system: Windows XP. 5) GIS software: ESRI ArcGIS 9.2 6) Printing: Get

Hung, I-Kuai

475

Laser Ignition  

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

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...

476

A new particle physics experiment, planned to take place at Fermilab and the Sanford Lab, aims to transform our understanding of neutrinos  

E-Print Network (OSTI)

June 2013 A new particle physics experiment, planned to take place at Fermilab and the Sanford Lab Accelerator Laboratory (Fermilab), located in Batavia, Illinois, and the Sanford Underground Research Facility to understanding neutrinos and their role in the universe. The distance between Fermilab and the Sanford Lab is 800

Quigg, Chris

477

GPU accelerated cardiac electrophysiology  

E-Print Network (OSTI)

OF THE THESIS GPU Accelerated Cardiac Electrophysiology bySAN DIEGO GPU Accelerated Cardiac Electrophysiology A thesistoolkit for developing GPU accelerated programs called CUDA,

Lionetti, Fred

2010-01-01T23:59:59.000Z

478

E-Print Network 3.0 - accelerated numerical method Sample Search...  

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

feature sizes, and scaling from S- and X-band accelerators and from numerical models the dimensional... HR HR TIR TIR Figure 1: Schematic of a crossed laser beam accelerator.2 The...

479

Laser wakefield simulation using a speed-of-light frame envelope model  

E-Print Network (OSTI)

Laser wake?eld simulation using a speed-of-light frameAbstract. Simulation of laser wake?eld accelerator (LWFA)extend hundreds of laser wave- lengths transversely and many

Cowan, B.

2010-01-01T23:59:59.000Z

480

By Lab, Major Site, or Technology Center | Scientific and Technical  

Office of Scientific and Technical Information (OSTI)

By Lab, Major Site, or Technology Center By Lab, Major Site, or Technology Center Print page Print page Email page Email page OSTI databases allow you to find research results and science information from the Manhattan Project to the present. Follow the 'Find STI..." links below to see technical reports from or related to DOE national laboratories, major sites, and technology centers. DOE National Laboratories Major Sites and Technology Centers DOE National Laboratories Argonne National Laboratory (ANL) Find STI from or about ANL Visit ANL Brookhaven National Laboratory (BNL) Find STI from or about BNL Visit BNL Fermi National Accelerator Laboratory (FERMI) Find STI from or about FERMI Visit FERMI Idaho National Laboratory (INL) Find STI from or about to INL Visit INL Lawrence Berkeley National Laboratory (LBNL) Find STI from or about LBNL Visit LBNL

Note: This page contains sample records for the topic "lab laser accelerator" 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

Lab Breakthrough: Neutron Science for the Fusion Mission | Department of  

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

Neutron Science for the Fusion Mission Neutron Science for the Fusion Mission Lab Breakthrough: Neutron Science for the Fusion Mission May 16, 2012 - 9:52am Addthis An accelerator team lead by Robert McGreevy at Oak Ridge National Laboratory is testing material - a critical role in building an experimental fusion reactor for commercial use. As part of the international coalition, they expect to have an operational reactor by 2050. View the entire Lab Breakthrough playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What is the difference between fusion and fission? Fission pulls molecules apart. This type of reactor runs nuclear power plants. Fusion puts molecules together. This type of reaction powers the Sun. Oak Ridge National Laboratory scientist Robert McGreevy explains the

482

Radiator Labs | Department of Energy  

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

Radiator Labs Radiator Labs National Clean Energy Business Plan Competition Radiator Labs Columbia University More than 14 million housing units, or 10 percent of the national housing stock, is heated by steam and hot water. Steam heating, which represents the majority of this market, is particularly inefficient, and is characterized by a central source of steam generation with a convective distribution system via a network of pipes and radiators. There is no way to control heat transfer through this network, so building managers configure boiler systems to treat a building as a single zone keeping the coldest apartment above a minimum statutory temperature. This results in overheating of the other spaces in the building due to differences in exposure, level of insulation, distribution system heating,

483

Radiator Labs | Department of Energy  

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

Competition » Radiator Labs Competition » Radiator Labs National Clean Energy Business Plan Competition Radiator Labs Columbia University More than 14 million housing units, or 10 percent of the national housing stock, is heated by steam and hot water. Steam heating, which represents the majority of this market, is particularly inefficient, and is characterized by a central source of steam generation with a convective distribution system via a network of pipes and radiators. There is no way to control heat transfer through this network, so building managers configure boiler systems to treat a building as a single zone keeping the coldest apartment above a minimum statutory temperature. This results in overheating of the other spaces in the building due to differences in exposure, level of insulation, distribution system heating,

484

Radiator Labs | Department of Energy  

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

Competition » Radiator Labs Competition » Radiator Labs National Clean Energy Business Plan Competition Radiator Labs Columbia University More than 14 million housing units, or 10 percent of the national housing stock, is heated by steam and hot water. Steam heating, which represents the majority of this market, is particularly inefficient, and is characterized by a central source of steam generation with a convective distribution system via a network of pipes and radiators. There is no way to control heat transfer through this network, so building managers configure boiler systems to treat a building as a single zone keeping the coldest apartment above a minimum statutory temperature. This results in overheating of the other spaces in the building due to differences in exposure, level of insulation, distribution system heating,

485

Teacher Night at Jefferson Lab  

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

Night at Jefferson Lab Night at Jefferson Lab Region II Physical Science Teacher Night for Elementary and Middle School Teachers April 2nd, 2014 6:30 pm - 8:00 pm Come for the FUN! You won't want to miss the annual Virginia Region II Teacher Night at Jefferson Lab! This year's focus is on physical science activities for upper elementary and middle school teachers. Format for the Evening Think of a Science Fair with enthusiactic students lined up at tables waiting to show you their projects... Teacher Night will be similar, except enthusiactic teachers will be waiting to share one of their favorite classroom activities with YOU! All teachers will have handouts and many will have starter supplies to accompany the handouts - that's right, FREE MATERIALS! Activity Topics Friction - Electrolysis - Water Cycle - Engineering Design Challenge -

486

Solar Labs | Open Energy Information  

Open Energy Info (EERE)

Solar Labs Solar Labs Name Solar Labs Address 1006 N Mary St Place Knoxville, Tennessee Zip 37914 Number of employees 1-10 Year founded 2005 Phone number 865-523-4313 Notes R&D, solar air heat and CPV Coordinates 35.997098°, -83.887505° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.997098,"lon":-83.887505,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

487

E-Print Network 3.0 - accelerators devices Sample Search Results  

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

| VOL 5 | OCTOBER 2011 | www.nature.comnaturephotonics news & views Summary: such laser-driven accelerators are relatively new devices, they have already demonstrated the...

488

E-Print Network 3.0 - acceleration foran electron Sample Search...  

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

Physics and Fusion ; Physics 10 The Application of Radiation and Particle Beams from Laser Plasma Wakefield Accelerators to Oncology Summary: to recent improvements in...

489

E-Print Network 3.0 - accelerator beam transport Sample Search...  

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

line to match... -power electromagnetic radiation and high- brightness electron beams, including laser acceleration of electrons and Free... transport lines to match the...

490

E-Print Network 3.0 - accelerator applications university Sample...  

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

university Page: << < 1 2 3 4 5 > >> 1 The Application of Radiation and Particle Beams from Laser Plasma Wakefield Accelerators to Oncology Summary: The Application of...

491

Electron Acceleration Experiments by Using a Density-tapered Capillary Plasma Source  

Science Journals Connector (OSTI)

We have developed a density-tapered capillary plasma source for high energy electron generation by using the laser wakefield acceleration, where the dephasing problem will be...

Suk, Hyyong; Nam, Inhyuk; Kim, Minseok; Lee, Seungwoo; Lee, Taehee

492

Rock Lab Analysis | Open Energy Information  

Open Energy Info (EERE)

Rock Lab Analysis Rock Lab Analysis Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Rock Lab Analysis Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Lab Analysis Techniques Exploration Sub Group: Rock Lab Analysis Parent Exploration Technique: Lab Analysis Techniques Information Provided by Technique Lithology: Core and cuttings analysis is done to define lithology. Water rock interaction. Can determine detailed information about rock composition and morphology. Density of different lithologic units. Rapid and unambiguous identification of unknown minerals.[1] Stratigraphic/Structural: Core analysis can locate faults or fracture networks. Oriented core can give additional important information on anisotropy. Historic structure and deformation of land.

493

Fermilab | Illinois Accelerator Research Center | Accelerators...  

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

Accelerators and Society Physicists have been inventing new types of accelerators to propel charged particles to higher and higher energies for more than 80 years. Today, besides...

494

Lab Breakthrough: Exploring Matter at the Dawn of Time | Department of  

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

Lab Breakthrough: Exploring Matter at the Dawn of Time Lab Breakthrough: Exploring Matter at the Dawn of Time Lab Breakthrough: Exploring Matter at the Dawn of Time May 9, 2012 - 2:55pm Addthis Physicist Paul Sorensen describes discoveries made at the Relativistic Heavy Ion Collider (RHIC), a particle accelerator at Brookhaven National Laboratory. At RHIC, scientists from around the world study what the universe may have looked like in the first microseconds after its birth, helping us to understand more about why the physical world works the way it does - from the smallest particles to the largest stars. See the other Lab Breakthrough videos on the YouTube playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs "To me, it's like the first steps on the moon."

495

Lab Spotlight: Argonne National Laboratory  

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

Lab Spotlight: Argonne National Laboratory Lab Spotlight: Argonne National Laboratory ultrananocrystalline diamond (UNCD) technology Researchers John Carlisle (left) and Orlando Auciello (right) are developing an ultrathin biocompatible coating for the device. Creating Diamond Coatings for the Retinal Implant Argonne National Laboratory (ANL) plays a critical role in the success of the electrode implants used in the Artificial Retina Project. That's where researchers Orlando Auciello and colleague John Carlisle are using their patented ultrananocrystalline diamond (UNCD) technology to apply a revolutionary new coating to the retinal prosthetic device. The new packaging promises to provide a very thin, ultrasmooth film that will be far more compact and biocompatible than the bulky materials used to encase

496

MagLab - Pioneers in Electricity and Magnetism: Georg Bednorz  

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

Zrich Magnet Lab Title Header Magnet Lab Title Florida State University Los Alamos National Laboratory University of Florida Magnet Lab Logo SEARCH Search People | Search Pubs...

497

Searching for Cosmic Accelerators via IceCube  

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

Searching for Cosmic Searching for Cosmic Accelerators via IceCube Searching for Cosmic Accelerators via IceCube Berkeley Lab Researchers Part of an International Hunt November 21, 2013 Lynn Yarris, lcyarris@lbl.gov, 510.486.5375 Bert.jpg This event display shows "Bert," one of two neutrino events discovered at IceCube whose energies exceeded one petaelectronvolt (PeV). The colors show when the light arrived, with reds being the earliest, succeeded by yellows, greens and blues. The size of the circle indicates the number of photons observed. (Courtesy of IceCube Lab) In our universe there are particle accelerators 40 million times more powerful than the Large Hadron Collider (LHC) at CERN. Scientists don't know what these cosmic accelerators are or where they are located, but new

498

Enhanced dielectric-wall linear accelerator  

DOE Patents (OSTI)

A dielectric-wall linear accelerator is enhanced by a high-voltage, fast e-time switch that includes a pair of electrodes between which are laminated alternating layers of isolated conductors and insulators. A high voltage is placed between the electrodes sufficient to stress the voltage breakdown of the insulator on command. A light trigger, such as a laser, is focused along at least one line along the edge surface of the laminated alternating layers of isolated conductors and insulators extending between the electrodes. The laser is energized to initiate a surface breakdown by a fluence of photons, thus causing the electrical switch to close very promptly. Such insulators and lasers are incorporated in a dielectric wall linear accelerator with Blumlein modules, and phasing is controlled by adjusting the length of fiber optic cables that carry the laser light to the insulator surface. 6 figs.

Sampayan, S.E.; Caporaso, G.J.; Kirbie, H.C.

1998-09-22T23:59:59.000Z

499

Safety Comes First | Jefferson Lab  

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

Safety Comes First When it comes to providing for the safety of employees and visiting researchers and protecting the environment, the Thomas Jefferson National Accelerator...

500

Lab 2: Blinkie Lab This lab introduces the Arduino Uno as students will need to use the Arduino to control  

E-Print Network (OSTI)

Lab 2: Blinkie Lab Objectives This lab introduces the Arduino Uno as students will need to use the Arduino to control their final robot. Students will build a basic circuit on their prototyping board and wire the board to the Arduino. Students will learn the basic programming structure for the Arduino

Wedeward, Kevin