Physics – General Physics
Scientific paper
Mar 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrva..33.2171w&link_type=abstract
Physical Review A - General Physics, 3rd Series (ISSN 0556-2791), vol. 33, March 1986, p. 2171-2173.
Physics
General Physics
66
Electron Scattering, Particle Collisions, Selenium, X Ray Lasers, Excitation, Hartree Approximation, Maxwell-Boltzmann Density Function
Scientific paper
In the recent successful demonstration of a soft-X-ray laser in neonlike selenium, the 3p-3s, J = 0-1 transition, which had been predicted to show very high gain, did not appear to be amplified. Most previous calculations have assumed that the dominant pumping mechanism is electron collisional excitation and have neglected the effects of ionization and recombination on the kinetics of neonlike levels. In this work, the effects of collisional ionization and three-body, radiative, and dielectronic recombination, connecting the three fluorinelike ground states to the lowest 89 levels of neonlike Se were studied. The results show that dielectronic recombination is a significant process for populating the J = 2 upper laser levels, and must be considered to model accurately the excited-state kinetics of the neonlike ion.
Chen Ming-Hui
Hagelstein Peter L.
Hazi A. U.
Whitten B. L.
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