Investigation of dominant states in the collisions of Ar VII and Kr XXIV with H_2 and He targets

Authors

ABDEL AZIZ HABIB
ALAA ABO ZALAM
HASSAN RAMADAN

DOI

10.3906/fiz-1206-13

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 (RTEX), which causes self-cooling for plasma. In addition, it is identical to the dielectronic recombination (DR) in electron-ion collisions. The present work deals with the calculation of DR cross-sections (\sigma^{DR}s) and DR rate coefficients (\alpha^{DR}s) as well as RTEX cross-sections (\sigma^{RTEX}s) for Mg-like ions [Ar^{6+} and Kr^{24+}] with L-shell and K-shell excitation for \Deltan = 0 and \Delta 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 Ar^{6+} and Kr^{24+} ions with He and H_2 targets. The calculations are carried out using the adapted angular momentum average scheme in the isolated resonance approximation.

Keywords

Dielectronic recombination, resonant transfer excitation

First Page

99

Last Page

106

Recommended Citation

HABIB, ABDEL AZIZ; ZALAM, ALAA ABO; and RAMADAN, HASSAN (2013) "Investigation of dominant states in the collisions of Ar VII and Kr XXIV with H_2 and He targets," Turkish Journal of Physics: Vol. 37: No. 1, Article 10. https://doi.org/10.3906/fiz-1206-13
Available at: https://journals.tubitak.gov.tr/physics/vol37/iss1/10