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Electron impact excitation rates for helium

✍ Scribed by R. S. Benson; J. L. Kulander

Book ID
104645055
Publisher
Springer
Year
1972
Tongue
English
Weight
648 KB
Volume
27
Category
Article
ISSN
0038-0938

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✦ Synopsis

Electron impact excitation rates are calculated for all transitions in He I and II between individual terms for n ~< 4. Rates calculated for a large number of different experimental, theoretical and semi-empirical cross sections are compared. The rates are approximated by the expression AT n exp(--c~Eo/kT) over the range 4000 ~< T ~< 50000K for He I and 104~< T ~< 105K for He n.

πŸ“œ SIMILAR VOLUMES

Total electron-impact excitation cross s
Total electron-impact excitation cross sections of helium
✍ H.H. Brongersma; F.W.E. Knoop; C. Backx πŸ“‚ Article πŸ“… 1972 πŸ› Elsevier Science 🌐 English βš– 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