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X-Ray Sources Generated from Gas-Filled Laser-Heated Targets.

DE200515013187

Publication Date	2000
Personal Author	Back, C. A.; Grun, J.; Decker, C. D.; Davis, J.; Laming, J. M.; Feldman, U.
Page Count	18
Abstract	The X-ray sources in the 4-7 keV energy regime can be produced by laser-irradiating high-Z gas-filled targets with high-powered lasers. A series of experiments have been performed using underdense targets that are supersonically heated with approx. 35 W of 0.35 um laser light. These targets were cylindrical Be enclosures that were filled with 1-2 atms of Xe gas. L-shell x-ray emission is emitted from the plasma and detected by Bragg crystal spectrometers and x-ray diodes. Absolute flux measurements show conversion efficiencies of approx. 10% in the multi-kilovolt x-ray emission. These sources can be used as bright x-ray backlighters or for material testing.
Keywords	Targets Laser radiation heating X-ray sources Laser targets Laser-produced plasma Xenon gas Material testing Absolute flux measurements Bragg crystal spectrometers X-ray diodes L-shell x-ray emission
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Livermore National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200602

X-Ray Sources Generated from Gas-Filled Laser-Heated Targets.

X-Ray Sources Generated from Gas-Filled Laser-Heated Targets.
DE200515013187

Publication Date	2000
Personal Author	Back, C. A.; Grun, J.; Decker, C. D.; Davis, J.; Laming, J. M.; Feldman, U.
Page Count	18
Abstract	The X-ray sources in the 4-7 keV energy regime can be produced by laser-irradiating high-Z gas-filled targets with high-powered lasers. A series of experiments have been performed using underdense targets that are supersonically heated with approx. 35 W of 0.35 um laser light. These targets were cylindrical Be enclosures that were filled with 1-2 atms of Xe gas. L-shell x-ray emission is emitted from the plasma and detected by Bragg crystal spectrometers and x-ray diodes. Absolute flux measurements show conversion efficiencies of approx. 10% in the multi-kilovolt x-ray emission. These sources can be used as bright x-ray backlighters or for material testing.
Keywords	Targets Laser radiation heating X-ray sources Laser targets Laser-produced plasma Xenon gas Material testing Absolute flux measurements Bragg crystal spectrometers X-ray diodes L-shell x-ray emission
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Livermore National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200602