Single-electron loss by fast (0.02-4 MeV) helium atoms in H2and He gases
- 11 January 1974
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 7 (1), 132-141
- https://doi.org/10.1088/0022-3700/7/1/022
Abstract
The single-electron loss cross section for He atoms passing through H2 and He gas targets has been studied in the impact-energy range from 20 keV to 4 MeV. He atoms were formed by charge-transfer neutralization of He+ ions in a He gas. At low energies, the cross sections were determined by beam attenuation in a transverse electrostatic field and, at higher energies, by the initial-growth method. The results were compared with Born-approximation calculations, and good agreement was found at energies above 500 keV for He in H2 and above 1200 keV for He in He.Keywords
This publication has 16 references indexed in Scilit:
- Electron-loss cross sections of lithium atoms in gasesJournal of Physics B: Atomic and Molecular Physics, 1973
- Formation of metastable helium atoms by electron capture during the passage of fast He+ions through gasesJournal of Physics B: Atomic and Molecular Physics, 1971
- Electron loss from fast metastable and ground state helium atoms in passage through gaseous targetsJournal of Physics B: Atomic and Molecular Physics, 1970
- Competitive processes in the formation of negative ions in heavy- particle collisionsJournal of Physics B: Atomic and Molecular Physics, 1970
- First Born approximation cross sections for electron loss from fast hydrogen atoms passing through atomic helium and fast helium atoms passing through atomic hydrogen and heliumJournal of Physics B: Atomic and Molecular Physics, 1969
- Position-Sensitive Semiconductor Particle Detectors Fabricated by Ion ImplantationIEEE Transactions on Nuclear Science, 1968
- Electron Loss Cross Sections for Helium Atoms in the Kinetic Energy Range 100-450 kevPhysical Review B, 1958
- Charge Exchange Cross Sections of Hydrogen Particles in Gases at High EnergiesPhysical Review B, 1958
- Charge Exchange Cross Sections for Helium Ions in GasesPhysical Review B, 1958
- Charge Exchange Cross Sections of Hydrogen Ions in GasesPhysical Review B, 1956