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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


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 Angstrom 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.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsNatale M. Ceglio, Pierre Dhez
Place of PublicationBellingham, WA, USA
Number of pages7
ISBN (Print)0892527234
StatePublished - 1987
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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