20 research outputs found
Some effects of participation in encounter group workshops: An analysis of written follow-up reports
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Stopping Powers for Positrons and Electrons
Stopping 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\ufffd0.08, 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.Peer reviewed: YesNRC publication: Ye