Plasma and Fusion Research

Volume 6, 2401102 (2011)

Regular Articles

Charge-Transfer Cross Sections of H+ Ions in Collisions with Noble Gas Atoms in the Energy Range below 4.0 keV
Toshio KUSAKABE, Hiroyuki A. SAKAUE1) and Hiroyuki TAWARA1)
Department of Science, Kinki University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan
1)
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
(Received 20 December 2010 / Accepted 8 February 2011 / Published 27 July 2011)

Abstract

Charge-transfer cross sections in collisions of H+ ions with the ground state He, Ar, Kr, and Xe atoms have been measured in the energy range below 4.0 keV with the initial growth rate method. These observed cross sections are also compared with previously published experimental data and theoretical predictions. In the He and Ar targets, it is found that some previous experimental data deviate significantly from the present observed cross sections as the collision energy decreases. It has been found that in the Kr and Xe targets, the energy dependence of the present observed cross sections behaves as “near-resonant” charge transfer.

Keywords

charge-transfer cross section, slow H+ ion, noble gas atom, growth rate method, energy defect, edge plasma, gas puff

DOI: 10.1585/pfr.6.2401102

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This paper may be cited as follows:

Toshio KUSAKABE, Hiroyuki A. SAKAUE and Hiroyuki TAWARA, Plasma Fusion Res. 6, 2401102 (2011).