Total electron-impact excitation cross s
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H.H. Brongersma; F.W.E. Knoop; C. Backx
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Article
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1972
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Elsevier Science
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English
โ 475 KB
the excitation by elect-on impact of the Z3S and 2'S states of helium are measured in the 194'i eV en&Y range. Several shape resonances are observed. An estimate for the 23P cross section is presented. ~OSe-COUpiiIIing ukukltions of Burke et al.'pre&ct the correct structure but overestimate the mqni