Study of the validity of the local density approximation in calculating stopping power and related quantities

Authors
Sarasola, A Fuhr, JD Ponce, VH Arnau, A
Citation
A. Sarasola et al., Study of the validity of the local density approximation in calculating stopping power and related quantities, NUCL INST B, 182, 2001, pp. 67-72
Citations number
14
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
ISSN journal
0168583X → ACNP
Volume
182
Year of publication
2001
Pages
67 - 72
Database
ISI
SICI code
0168-583X(200108)182:<67:SOTVOT>2.0.ZU;2-P
Abstract
A simple model has been used to test the applicability of the local density approximation (LDA) to calculate different moments of the energy loss dist ribution. A first-order calculation of the excitation and ionisation of the hydrogen atom is used as a reference to extract the range of validity of t he LDA. The impact parameter dependence of the energy loss and extensions t o other systems are discussed as well. (C) 2001 Elsevier Science B.V. All r ights reserved.