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Proceedings Paper

Modeling short-pulse-driven collisional x-ray lasers and other new schemes
Author(s): Joseph Nielsen; Yuelin Li; James Dunn; Albert L. Osterheld
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Paper Abstract

Recently, the technique of using a nsec pulse to preform and ionize the plasma followed by a psec pulse to heat the plasma has enabled low-Z neon-like and nickel-like ions to lase driven by small lasers with only ten joules of energy. In this work we model recent experiments done using the COMET laser at LLNL to illuminate 1 cm long slab targets of Ti with a 4.8 J, 800 ps prepulse followed 1.6 nsec later by a 6 J, 1 psec drive pulse. The LASNEX code is used to calculate the hydrodynamic evolution of the plasma and provide the temperatures and densities of the XRASER code, which then does the kinetics calculations to determine the gain.

Paper Details

Date Published: 21 October 1999
PDF: 10 pages
Proc. SPIE 3776, Soft X-Ray Lasers and Applications III, (21 October 1999); doi: 10.1117/12.366682
Show Author Affiliations
Joseph Nielsen, Lawrence Livermore National Lab. (United States)
Yuelin Li, Lawrence Livermore National Lab. (United States)
James Dunn, Lawrence Livermore National Lab. (United States)
Albert L. Osterheld, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 3776:
Soft X-Ray Lasers and Applications III
Jorge J. G. Rocca; Luiz Barroca Da Silva, Editor(s)

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