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Proceedings Paper

Subpicosecond time-resolved x-ray measurements
Author(s): Ronnie L. Shepherd; Rex Booth; Bruce KF Young; Dwight F. Price; Richard More; Richard W. Lee; Richard E. Stewart
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Paper Abstract

The emission of ultrashort thermal x-ray radiation is shown to be controlled by two factors; peak temperature and the population of `cold' electrons. Two experiments are used to illustrate these mechanisms. The first measures the time history of 50 angstroms - 130 angstroms x-rays from ultrashort pulse laser heated solid targets. This experiment is used to illustrate the effect of the peak temperature on the full width at half maximum of the emission. The second experiment measures the dependency of decay time of the 1s2(S0) - 1s2p(1P1) transition (He(alpha )) emission on target thickness. This is used to infer the effects of unheated material or `cold' electrons on the time history of the x-ray emission.

Paper Details

Date Published: 14 October 1997
PDF: 8 pages
Proc. SPIE 3157, Applications of X Rays Generated from Lasers and Other Bright Sources, (14 October 1997); doi: 10.1117/12.290263
Show Author Affiliations
Ronnie L. Shepherd, Lawrence Livermore National Lab. (United States)
Rex Booth, Lawrence Livermore National Lab. (United States)
Bruce KF Young, Lawrence Livermore National Lab. (United States)
Dwight F. Price, Lawrence Livermore National Lab. (United States)
Richard More, Lawrence Livermore National Lab. (United States)
Richard W. Lee, Lawrence Livermore National Lab. (United States)
Richard E. Stewart, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 3157:
Applications of X Rays Generated from Lasers and Other Bright Sources
George A. Kyrala; Jean-Claude J. Gauthier, Editor(s)

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