Statistics – Applications
Scientific paper
Oct 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999spie.3776....2d&link_type=abstract
Proc. SPIE Vol. 3776, p. 2-8, Soft X-Ray Lasers and Applications III, Jorge J. Rocca; Luiz B. Da Silva; Eds.
Statistics
Applications
3
Scientific paper
Recent transient collisional excitation x-ray laser experiments are reported using the COMET tabletop laser driver at the Lawrence Livermore National Laboratory. Ne- like and Ni-like ion x-ray laser schemes have been investigated with a combination of long 600 ps and short approximately 1 ps high power laser pulses with 5 - 10 J total energy. We show small signal gain saturation for x-ray lasers when a reflection echelon traveling wave geometry is utilized. A gain length product of 18 has been achieved for the Ni-like Pd 4dyields4p J equals 0 - 1 line at 147 angstroms, with an estimated output of approximately 10 (mu) J. Strong lasing on the 119 angstroms Ni-like Sn line has also been observed. To our knowledge this is the first time gain saturation has been achieved on a tabletop laser driven scheme and is the shortest wavelength table-top x-ray laser demonstrated to date. In addition, we present preliminary results of the characterization of the line focus uniformity for a Ne-like ion scheme using L-shell spectroscopy.
Dunn James
Faenov Anatoly Y.
Fournier Kevin B.
Hunter James R.
Li Yuelin
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