Phys. Rev. A 63, 022705 (2001) [6 pages]Electron detachment of Si- by He, Ne, and ArReceived 1 June 2000; published 10 January 2001 The cross sections for electron detachment of Si- were measured for He, Ne, and Ar targets at relative velocities in the 0.25–1.4 a.u. range. Argon target cross sections were measured using Si- ions from two different origins, the results agreeing well with each other and with literature values. The velocity dependence of the Si- cross sections is strikingly similar to that of known H- results, with the former being consistently larger than the latter and, at large velocities, differing by a multiplicative constant. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.63.022705
DOI:
10.1103/PhysRevA.63.022705
PACS:
34.50.Fa, 34.90.+q
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