Determination of metastable fractions in noble-gas-ion beams
- 1 December 1978
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 18 (6) , 2453-2458
- https://doi.org/10.1103/physreva.18.2453
Abstract
Yields and kinetic energy distributions of secondary electrons emitted by potential emission due to impact of slow singly or multiply charged noble-gas ions on a clean polycrystalline tungsten target have been determined. An empirical relation for the secondary-electron yield of ground-state ions is applied to obtain the secondary-electron yield of corresponding metastably excited ions. By this technique metastable fractions of noble-gas-ion beams could be evaluated. Results for singly and doubly charged ions of Ar, Kr, and Xe, are presented.Keywords
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