Excitation Processes in Helium Induced by Impact of Deuterons and Protons
- 1 November 1961
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 124 (3) , 810-813
- https://doi.org/10.1103/PhysRev.124.810
Abstract
The excitation of helium atoms by impact of protons and deuterons is examined in the energy range from 40-200 kev. The cross sections of some , and the state are determined. The excitation of the line attains a broad maximum at 65 kev for protons, and at 115 kev for deuteron excitation. The state appears to be weakly populated by direct excitation; at 130 kev energy, . Inelastic collisions between excited helium and foreign atoms bringing about the transition from singlet to triplet states are discussed.
Keywords
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