DOUBLE-IONIZATION OF HE BY FAST PROTONS AT LARGE ENERGY-TRANSFER

Authors
WU W DATZ S JONES NL KRAUSE HF ROSNER B SORGE KD VANE CR
Citation
W. Wu et al., DOUBLE-IONIZATION OF HE BY FAST PROTONS AT LARGE ENERGY-TRANSFER, Physical review letters, 76(23), 1996, pp. 4324-4327
Citations number
33
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
76
Issue
23
Year of publication
1996
Pages
4324 - 4327
Database
ISI
SICI code
0031-9007(1996)76:23<4324:DOHBFP>2.0.ZU;2-D
Abstract
The ratio R(Delta E) of double to single ionization of He by fast prot on impact has been measured as a function of energy transfer (Delta E) . While R(Delta\E) is observed to be nearly independent of proton ener gy (1-6 MeV) within experimental error, it decreases with increasing e nergy transfer, from 2% at Delta E = 1 keV to below 1% at Delta E = 10 keV. Further comparisons of these ratios with those obtained from pho toionzation and Compton scattering are made.