Robust estimates of hydrogen-impact ionization cross sections over a wide energy range
- 29 March 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 61 (5) , 052702
- https://doi.org/10.1103/physreva.61.052702
Abstract
We describe a simple and effective procedure to estimate hydrogen-impact ionization cross sections over the energy range of tens of keV/nucleon to tens of MeV/nucleon. The procedure is valid in the first Born approximation using known or estimated electron-impact cross sections. The original Bates-Griffing relation between the two sets of cross sections is reformulated and a correction factor due to multiple transitions is introduced. Sample calculated ionization cross sections for helium and carbon collisions with hydrogen are presented.Keywords
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