Investigation of dominant states in the collisions of Ar VII and Kr XXIV with H2 and He targets

Authors : Abdel Aziz HABIB, Alaa Abo ZALAM, Hassan RAMADAN

Pages : 99-106

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :In thermal plasma, the ion--atom collisions proceed most probably through resonance processes. One of the important processes is the resonant transfer excitation followed by emission of X-rays insert ignore into journalissuearticles values(RTEX);, which causes self-cooling for plasma. In addition, it is identical to the dielectronic recombination insert ignore into journalissuearticles values(DR); in electron-ion collisions. The present work deals with the calculation of DR cross-sections insert ignore into journalissuearticles values(sDRs); and DR rate coefficients insert ignore into journalissuearticles values(aDRs); as well as RTEX cross-sections insert ignore into journalissuearticles values(sRTEXs); for Mg-like ions [Ar6+ and Kr24+] with L-shell and K-shell excitation for Dn = 0 and D n \neq 0. Comparison between the present results and other calculations for the rates are presented. RTEX cross-sections are calculated for the collision of Ar6+ and Kr24+ ions with He and H2 targets. The calculations are carried out using the adapted angular momentum average scheme in the isolated resonance approximation.
Keywords : Dielectronic recombination, resonant transfer excitation