Numéro
J. Phys. I France
Volume 2, Numéro 9, September 1992
Page(s) 1803 - 1810
DOI https://doi.org/10.1051/jp1:1992246
DOI: 10.1051/jp1:1992246
J. Phys. I France 2 (1992) 1803-1810

Stopping power of protons in He at low energies

Y. Boudouma, A. C. Chami, H. Beaumevieille and M. Boudjema

Institut de Physique, U.S.T.H.B., B.P. 32, El-Alia, Bab Ezzouar, Alger, Algeria


(Received 30 December 1991, revised 8 April 1992, accepted 1 June 1992)

Abstract
Using the Scattering Approach for Stopping in an Electron Gas, the Local Density Approximation (LDA), an adiabatic criterion, and capture and loss contributions to the electronic energy loss we have calculated the electronic stopping power of protons in helium and hydrogen gases at low energies. The combined model used give a significant deviation from the well known velocity proportionality of the stopping power at very low energy in the two cases. Our calculations explain quite well this striking deviation reported in recent papers. A good agreement is obtained with experimental values in case of He.



© Les Editions de Physique 1992

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.