Single and Double-Electron Removal from H <sup>-</sup> in Energetic Collisions with Multiply-Charged Argon Ions
F. MelchertInstitut für Kernphysik, Strahlenzentrum, Universität Giessen, D-6300 Giessen, West GermanyW. DebusInstitut für Kernphysik, Strahlenzentrum, Universität Giessen, D-6300 Giessen, West GermanyM. LiehrInstitut für Kernphysik, Strahlenzentrum, Universität Giessen, D-6300 Giessen, West GermanyR. E. OlsonPhysics Department, University of Missouri Rolla - MO 65401, USAE. SalzbornInstitut für Kernphysik, Strahlenzentrum, Universität Giessen, D-6300 Giessen, West Germany
1989en
ABI
Annotatsiya
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.
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