Geant4 simulation of the effect of backscattered positrons on the lifetime spectra of PLEPS
Journal:
Journal of Physics. Conference Series (JPCS)
Volume:
443
Issue:
1
Year:
2013
Language:
Englisch
Abstract:
The Pulsed Low Energy Positron System (PLEPS) allows the measurement of positron lifetime spectra of very high quality with peak-to-background ratios up to 3 · 104. At those peak-to-background ratios small structures appear in the lifetime spectra due to backscattered positrons. Despite their small overall contribution-less than 2