Angular dependence of energy loss in proton-helium collisions
Open Access
- 4 April 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 72 (14) , 2159-2162
- https://doi.org/10.1103/physrevlett.72.2159
Abstract
The energy loss of 50 to 250 keV proton scattered under single-collision conditions from He atoms is investigated in terms of its dependence on the angle of scattering. At the higher projectile energies we observe an enhanced energy loss at scattering angles around 0.5 mrad. Such a behavior cannot be understood on the basis of two-body scattering models. Based on our theoretical studies we show that the combined effects of the screened target potential and of electronic transitions have to be considered for the energy loss of proton scattering in light gases.Keywords
This publication has 20 references indexed in Scilit:
- Energy loss of 100 keV protons in single collisions with argon atomsPhysics Letters A, 1993
- Distorted-wave calculation of stopping powers for light ions traversing H targetsPhysical Review A, 1993
- Single and double ionization in 300-keVH++He collisions at small impact parametersPhysical Review A, 1992
- Phase effect in the energy loss of H projectiles in Zn targets: Experimental evidence and theoretical explanationPhysical Review Letters, 1992
- Evidence for electron correlation in the two-electron continuum during double ionization in 300-keV+He collisionsPhysical Review Letters, 1990
- Charge Asymmetry in the Dependence of Stopping on Impact ParameterPhysica Status Solidi (b), 1990
- Charge- and angle-correlated inelasticities in collisions of bare fast carbon ions with neonPhysical Review Letters, 1988
- The Impact‐Parameter Dependence of Electron Stopping in Proton Collisions with Gas and Solid AtomsPhysica Status Solidi (b), 1988
- Differential energy-loss cross sections for ionization of atomic hydrogen by 25-200-keV protonsPhysical Review A, 1977
- Energy loss of protons passing through hydrogenProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1955