Lawrence Livermore National Laboratory X-Ray Laser Research: Recent Results

B. J. MacGowan; S. Brown; E. M. Campbell; M. Eckart; P. Hagelstein; C. Keane; R. London; D. Matthews; D. Nilson; T. Phillips; M. Rosen; J. Scofield; G. Shimkaveg; A. Simon; R. Stewart; J. Trebes; D. Whelan; B. Whitten; J. Woodworth

doi:10.1117/12.964818

9 April 1987 Lawrence Livermore National Laboratory X-Ray Laser Research: Recent Results

B. J. MacGowan, S. Brown, E. M. Campbell, M. Eckart, P. Hagelstein, C. Keane, R. London, D. Matthews, D. Nilson, T. Phillips, M. Rosen, J. Scofield, G. Shimkaveg, A. Simon, R. Stewart, J. Trebes, D. Whelan, B. Whitten, J. Woodworth

Author Affiliations +

Proceedings Volume 0688, Multilayer Structures & Laboratory X-Ray Laser Research; (1987) https://doi.org/10.1117/12.964818
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

Abstract

Since the successful demonstration of gain in neon-like selenium using an exploding foil amplifier, the x-ray laser group at Lawrence Livermore National Laboratory has investigated further the exploding foil amplifier concept for use in XUV lasers. Results are reported of the characteristics of selenium amplifiers up to 50 mm in length. Observation of at least 16 gain lengths for the 206 Å line of selenium is reported. Output powers in excess of 1 MW have been measured in pulses of approximately 200 picoseconds. The effects of refraction on the performance of long amplifiers have been studied. The occurrence time of the x-ray laser output relative to the input heating pulse has been measured and found to be in disagreement with a recent model that suggests three-body recombination driven by rapid radiative cooling as the inversion process in the selenium plasma.

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B. J. MacGowan, S. Brown, E. M. Campbell, M. Eckart, P. Hagelstein, C. Keane, R. London, D. Matthews, D. Nilson, T. Phillips, M. Rosen, J. Scofield, G. Shimkaveg, A. Simon, R. Stewart, J. Trebes, D. Whelan, B. Whitten, and J. Woodworth "Lawrence Livermore National Laboratory X-Ray Laser Research: Recent Results", Proc. SPIE 0688, Multilayer Structures & Laboratory X-Ray Laser Research, (9 April 1987); https://doi.org/10.1117/12.964818

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