AN ESTIMATE OF THE TEMPERATURE-DEPENDENCE OF THE STOPPING CROSS-SECTION IN MOLECULAR TARGETS

Citation
Jr. Sabin et al., AN ESTIMATE OF THE TEMPERATURE-DEPENDENCE OF THE STOPPING CROSS-SECTION IN MOLECULAR TARGETS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 93(2), 1994, pp. 161-165
Citations number
24
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
ISSN journal
0168583X
Volume
93
Issue
2
Year of publication
1994
Pages
161 - 165
Database
ISI
SICI code
0168-583X(1994)93:2<161:AEOTTO>2.0.ZU;2-9
Abstract
Using the polarization propagator formalism, we have calculated the di pole oscillator strength distribution for H-2 at various internuclear distances. The appropriate quantities were then temperature averaged, and used in conjunction with Bethe, Barkas and Bloch terms to estimate the effect of temperature on molecular stopping. The change in stoppi ng cross section was found to be of the order of 10% in the case of H- 2 for temperature differences of 5000 K. We argue that this is conside rably larger than the H-2/D2 isotope effect.