Open AccessA STUDY ON "WATER WINDOW" RANGE 2p-3d POPULATION INVERSION OF He-LIKE AI IONS X-RAY LASER
Author(s) -
徐至展,
韩申生,
沈百飞,
江志明,
孙岚,
范品忠,
王晓方,
钱爱娣
Publication year - 1993
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.42.940
Subject(s) - ion , foil method , population inversion , atomic physics , plasma , laser , electron density , materials science , population , range (aeronautics) , electron , optics , physics , nuclear physics , demography , quantum mechanics , sociology , composite material
The results of experimental and theoretical study on population inversion in the He-like Al ions are presented for the pumping laser intensity range of 2×1014W|cm2. The effects of different target structure (foil, plane and half-cylinder) on the 2p-3d population inversion of the He-like Al ions (45nm) in a spot focused laser plasma have been studied experimentally. The plasma parameters such as electron temperature, electron density and the ratio of H-like ion density to He-like ion density, are diagnosed by spectroscopic methods. Results are compared with C-R model calculations.