Stopping Powers for Positrons and Electrons

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DOIResolve DOI: http://doi.org/10.1103/PhysRevLett.74.3947
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TypeArticle
Journal titlePhysical Review Letters
Volume74
Issue20
Pages39473950; # of pages: 4
AbstractStopping cross sections for 20 keV positrons (S+) and electrons (S-) in a thin (61 ?g/cm2) Al target have been measured using an electrostatic analyzer. The results yield a ratio S+/S- = 1.15�0.08, in good agreement with the theoretically calculated value of 1.097. A marked dependence of the mean energy loss on an emergence angle has been observed for a thin target, and its origin is interpreted with the aid of Monte Carlo simulations.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences
Peer reviewedYes
NPARC number12339004
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Record identifierbef6168a-7851-4713-81a4-b43299e4897e
Record created2009-09-11
Record modified2016-05-09
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