Progress in table-top transient collisional excitation x-ray lasers at LLNL

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We present progress in experiments for high efficiency Ne-like and Ni-like ion x-ray lasers using the transient collisional excitation scheme. Experimental results have been obtained on the COMET 15 TW table-top laser system at the Lawrence Livermore National Laboratory (LLNL). The plasma formation, ionization and collisional excitation of the x-ray laser have been optimized using two sequential laser pulses of 600 ps and 1 ps duration with an optional pre-pulse. We have observed high gains up to 55 cm{sup {minus}1} in Ne-like and Ni-like ion schemes for various atomic numbers. We report strong output for the 4d - 4p line ... continued below

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Da Silva, L. B.; Dunn, J.; Li, Y.; Nilsen, J.; Osterheld, A.; Shepherd, R. et al. February 7, 1999.

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We present progress in experiments for high efficiency Ne-like and Ni-like ion x-ray lasers using the transient collisional excitation scheme. Experimental results have been obtained on the COMET 15 TW table-top laser system at the Lawrence Livermore National Laboratory (LLNL). The plasma formation, ionization and collisional excitation of the x-ray laser have been optimized using two sequential laser pulses of 600 ps and 1 ps duration with an optional pre-pulse. We have observed high gains up to 55 cm{sup {minus}1} in Ne-like and Ni-like ion schemes for various atomic numbers. We report strong output for the 4d - 4p line in lower Z Ni-like ion sequence for Mo to Y, lasing from {approximately}190 {angstrom} to 240 {angstrom}, by pumping with less than 5 J energy on target.

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  • 6th International Conference on X-Ray Lasers, Kyoto (JP), 08/31/1998--09/04/1998

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  • Report No.: UCRL-JC-133238
  • Report No.: YN0100000
  • Report No.: 97-ERD-105
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 14738
  • Archival Resource Key: ark:/67531/metadc625902

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  • February 7, 1999

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  • June 16, 2015, 7:43 a.m.

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  • May 6, 2016, 4:12 p.m.

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Da Silva, L. B.; Dunn, J.; Li, Y.; Nilsen, J.; Osterheld, A.; Shepherd, R. et al. Progress in table-top transient collisional excitation x-ray lasers at LLNL, article, February 7, 1999; California. (digital.library.unt.edu/ark:/67531/metadc625902/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.