Projectile Angular Dependence of the Ratio of Double to Single Ionization Produced by Fast Protons in Collision with Helium
- 16 January 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 62 (3) , 245-248
- https://doi.org/10.1103/physrevlett.62.245
Abstract
We suggest an explanation for the structure, observed by Giese and Horsdal, in the projectile angular dependence of the ratio of double to single ionization produced by fast protons in collision with helium. We postulate that two incoherent mechanisms, a first that produces slow electrons and a second that produces fast electrons, combine to give the effect.Keywords
This publication has 8 references indexed in Scilit:
- First Born calculations of double ionisation of helium by bare-ion projectiles: contributions from d orbitalsJournal of Physics B: Atomic, Molecular and Optical Physics, 1988
- Angular Distribution of Fast Protons from Singly and Doubly Ionizing Collisions with HePhysical Review Letters, 1988
- Structure in the Differential Charge-State Fractions of He Following Ionization by Fast ProtonsPhysical Review Letters, 1988
- M1 and E2 transition probabilities for states within the 2p4configuration of the O I isoelectronic sequenceJournal of Physics B: Atomic, Molecular and Optical Physics, 1988
- The forced impulse method applied to the double ionisation of helium by collision with high-energy protons, antiprotons and alpha particlesJournal of Physics B: Atomic and Molecular Physics, 1987
- Double ionization of helium by protons and antiprotons in the energy range 0.30 to 40 MeVPhysical Review Letters, 1987
- Single and Double Ionization of Helium by Fast Antiproton and Proton ImpactPhysical Review Letters, 1986
- Multiple Ionization Processes in HeliumPhysical Review B, 1967