Escape probability of 511 keV annihilation photons from HPGe detectors

The escape probability of 511 keV annihilation photons from a HPGe detector is presented with a third order polynomial which depends on the total photon cross section and average chord length of the sensitive volume of the detector. Theoretical results agree with the experiment within 3%. It is show...

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Veröffentlicht in:	Radiation measurements 2005-08, Vol.39 (4), p.387-390
Hauptverfasser:	Sardari, D., Baghini, N.M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Annihilation photon Chord length-radium Earth sciences Earth, ocean, space Escape probability Exact sciences and technology Gamma ray spectroscopy Geochronology Germanium detector Isotope geochemistry. Geochronology
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The escape probability of 511 keV annihilation photons from a HPGe detector is presented with a third order polynomial which depends on the total photon cross section and average chord length of the sensitive volume of the detector. Theoretical results agree with the experiment within 3%. It is shown that equations describing neutron escape probability from an absorbing medium, approximates photon escape from a germanium detector.
ISSN:	1350-4487 1879-0925
DOI:	10.1016/j.radmeas.2004.05.011