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You searched on: Author: lawrence hudson

Displaying records 21 to 30 of 86 records.
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21. High contract femtosecond laser-driven intense hard X-ray source for imaging application
Published: 11/18/2009
Authors: Lawrence T Hudson, L.M Chen, W.M. Wang, M. Kando, F Liu, X.X. Lin, J.L Ma, Y.T. Li, S.V. Bulanvo, T. Tajima, Y. Kato, Z.M. Sheng, J Zhang
Abstract: In this report we address the current situation of laser-driven hard X-ray sources for imaging applications,especially the saturation of X-ray conversion efficiency and the serious impact upon imaging quality.By employing high contrast laser pulses ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907448

22. X-ray measurements at high-power lasers
Published: 5/1/2009
Authors: Lawrence T Hudson, C.I Szabo, Paul Indelicato, G.E. Gumberidze, G Holland, John F Seely, Albert Henins, M Audebert, S. Bastiani-Ceccotti, E. Tabakhoff, E. Brambrink
Abstract: Conversion efficiencies of laser light into K x-ray radiation are used to characterize laser-solid interactions e.g. in measurements with back-lighter targets in Inertial Confinement Fusion research or in ultra short x-ray science where ultra short l ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842572

23. Analysis of ISCD-NIST Survey for Bone Health
Published: 4/1/2009
Authors: Andrew M Dienstfrey, Tammy L. Oreskovic, Herbert S Bennett, Lawrence T Hudson
Abstract: In 2007, the National Institute of Standards and Technology and the International Society for Clinical Densitometry designed a survey to prioritize seven research and standardization action items intended to improve accuracy and cross-comparability o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=890044

24. Laser-produced X-Ray Sources
Published: 1/12/2009
Authors: Lawrence T Hudson, J Seely
Abstract: A formidable array of advanced laser systems are emerging that produce extreme states of light and matter. By irradiating solid and gaseous targets with lasers of increasing energy densities, new physical regimes of radiation effects are being explor ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901410

25. Development of backlighting sources for Compton radiography diagnostic of Inertial Confinement Fusion targets.
Published: 12/8/2008
Authors: Lawrence T Hudson, A. Tommasini, A MacPhee, D. Hey, T Ma, C. Chen, N Izimi, W Unites, A. MacKinnon, P. Hatchett, B.A. Remington, H.S. Park, P. Springer, J. Koch, O.L. Landen, John F Seely, G Holland
Abstract: We present scaled demonstrations of backlighter sources, emitting Bremsstrahlung x rays with photon energies above 75 keV, that we will use to record x-ray Compton radiographic snapshots of cold dense DT fuel in inertial confinement fusion implosions ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842500

26. High resolution 17 keV to 75 keV backlighers for high energy density experiments
Published: 11/6/2008
Authors: Lawrence T Hudson, H.S. Parks, B.R. Maddox, E. Giraldez, P. Hatchett, N. Izumi, M.H. Key, S. LePape, A. MacKinnon, A MacPhee, P.K. Patel, T.W. Phillips, B.A. Remington, John F Seely, A. Tommasini, R. Town, J. Workman
Abstract: We have developed 17 keV to 75 keV 1-dimensional and 2-dimensional high-resolution (<10 m) radiography using high-intensity short pulse lasers. High energy K- sources are created by fluorescence from hot electrons interacting in the target mate ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842501

27. ISCD-NIST DXA Survey: Preliminary Report
Published: 5/15/2008
Authors: Andrew M Dienstfrey, Tammy L. Oreskovic, Lawrence T Hudson, Herbert S Bennett
Abstract: This article reports and discusses briefly the preliminary results from the recent International Society for Clinical Densitometry (ISCD)-National Institute of Standards and Technology (NIST) dual-energy x-ray absorptiometry (DXA) Survey.  The 1074 S ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=853595

28. In God We Trust, X-Ray Everything Else! Standards for X-Ray and Gamma-Ray Security Screening Systems
Published: 10/31/2007
Authors: Lawrence T Hudson, Stephen Michael Seltzer, Paul Mark Bergstrom, Frank Cerra
Abstract: A suite of technical performance standards is nearing completion that encompasses all the nation s security systems that screen using x-rays or gamma-rays. Specifically, these documentary standards address the aspects of imaging quality and radiation ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841226

29. Data Acquisition System Development for the Detection of X-Ray Photons in Multi-Wire Gas Proportional Counters
Published: 1/1/2007
Authors: J A Kimpton, M N Kinnane, L F Smale, Christopher T. Chantler, Lawrence T Hudson, Albert Henins, C I Szabo, John D Gillaspy, Joseph N Tan, Joshua M Pomeroy, E Takacs, B Radics
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100999

30. Detection of Faint X-Ray Spectral Features Using Wavelength, Energy, and Spatial Discrimination Techniques
Published: 1/1/2007
Authors: Lawrence T Hudson, John D Gillaspy, Joshua M Pomeroy, C I Szabo, Joseph N Tan, B Radics, E Takacs, Christopher T. Chantler, J A Kimpton, M N Kinnane, L F Smale
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100952



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