A study of charge-changing collisions involving Mg+, Fe+and Cu+in the energy range 5-30 keV
- 1 May 1970
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 3 (5) , 660-666
- https://doi.org/10.1088/0022-3700/3/5/008
Abstract
An investigation of one- and two-electron capture and one-electron loss processes was carried out for Mg+, Fe+ and Cu+ on gases Ne, Kr and N2 in the energy range of 5-30 keV. The measurements were made under single-collision conditions using the beam technique. The characteristic behaviour of sigma 12 cross section, for the investigated metal ions, in the velocity region v8 cm s-1 is discussed. The theoretically calculated cross sections for the one-electron capture process are compared with those obtained experimentally. The two-electron capture process, leading to the formation of negative ions, was investigated for the case of Fe+ on Kr. The analysis of the experimental results revealed the important role of two-step processes on the formation of Fe- in the gas target thickness range of 10-3-10-2 torr cm. The experimentally obtained sigma 11 cross-section values for that case are compared with the theoretically calculated values.Keywords
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