Absolute cross-sections have been measured and compared to CTMC-calculations for single and double-electron removal from H− in collisions with Arq+ ions (q ≤ 8) at Ec.m. = 50 keV. The single-electron removal cross-sections are found to scale with q1.3, and for the H− + Ar4+ system, this cross-section is found to have a weak energy dependence from 3 keV to 100 keV. A major implication of our measurements is that plasma neutralizers based on multiply charged ions for high-efficiency conversion of intense H− beams into H0 gain little in expected reduced length due to the inapplicability of q2-scaling in the H− single-electron removal cross-section. © 1989, IOP Publishing Ltd.
F. Melchert et al., "Single And Double-electron Removal From H− In Energetic Collisions With Multiply-charged Argon Ions," EPL, vol. 9, no. 5, pp. 433 - 439, IOP Publishing; European Physical Society; Società Italiana di Fisica; EDP Sciences; EPL Association, Jul 1989.
The definitive version is available at https://doi.org/10.1209/0295-5075/9/5/005
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01 Jul 1989