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Proceedings Paper

Modeling current and proposed COMET x-ray laser experiments
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Paper Abstract

We model recent experiments done using the COMET laser at Lawrence Livermore National Laboratory to illuminate slab targets of Pd up to 1.25 cm long with a two joule, 600 ps prepulse followed 700 psec later by a six joule, six psec drive pulse. The experiments measure the two-dimensional near-field and far-field laser patterns for the 14.7 nm Ni-like Pd x-ray laser line. The experiments are modeled using the LASNEX code to calculate the hydrodynamic evolution of the plasma and provide the temperatures and densities to the CRETIN code, which then does the kinetics calculations to determine the gain. Using a ray tracing code to simulate the near and far-field output the simulations are then compared with experiments. In addition we model recent experiments that used a streak camera to measure the time duration of the Pd X-ray laser when pumped with a constant energy short pulse with different time durations that ranged from 0.5 to 27 ps.

Paper Details

Date Published: 19 December 2003
PDF: 8 pages
Proc. SPIE 5197, Soft X-Ray Lasers and Applications V, (19 December 2003); doi: 10.1117/12.503591
Show Author Affiliations
Joseph Nilsen, Lawrence Livermore National Lab. (United States)
James Dunn, Lawrence Livermore National Lab. (United States)
Raymond F. Smith, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 5197:
Soft X-Ray Lasers and Applications V
Ernst E. Fill; Szymon Suckewer, Editor(s)

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