Double and single ionization of helium by high velocityions
- 19 February 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 64 (8) , 851-853
- https://doi.org/10.1103/physrevlett.64.851
Abstract
Beams of fully stripped nitrogen ions have been used to investigate the behavior of the double-to-single ionization cross-section ratio of helium in the 10–30-MeV/amu velocity region. The measured ratio was found to remain nearly constant over this velocity range at a value of 0.01, which is about 4.5 times higher than the high-velocity limit established previously for q=1 projectiles.Keywords
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