Foil calorimeter measurements of soft-X-ray energy emission from KrF-laser-produced plasmas
R Fedosejevs; Y Y Tsui; R Popil; P D Gupta; J Baker; A A Offenberger; R Fedosejevs; Dept. of Electr. Eng., Alberta Univ., Edmonton, Alta., Canada; Y Y Tsui; Dept. of Electr. Eng., Alberta Univ., Edmonton, Alta., Canada; R Popil; Dept. of Electr. Eng., Alberta Univ., Edmonton, Alta., Canada; P D Gupta; Dept. of Electr. Eng., Alberta Univ., Edmonton, Alta., Canada; J Baker; Dept. of Electr. Eng., Alberta Univ., Edmonton, Alta., Canada; A A Offenberger; Dept. of Electr. Eng., Alberta Univ., Edmonton, Alta., Canada
Журнал:
Journal of Physics D: Applied Physics
Дата:
1987-10-14
Аннотация:
A fast time response X-ray foil calorimeter has been developed and used to determine the soft-X-ray yield (h nu <850 eV) from plasma produced by 1.75 ns duration Brillouin compressed KrF laser pulses (248 nm). The X-ray conversion was measured for various elements ranging in atomic number from 6 to 82 at an intensity of 5*10<sup>12</sup> W cm<sup>-2</sup>. Assuming a cos theta angular distribution, maximum conversion efficiencies exceed 30% for high-Z targets.
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