Measurement of Compton edge position in low-Z scintillators

A method based on a Compton coincidence technique was applied to measure in a wide energy range the position of Compton edge in organic scintillators. The experimental setup comprised a High Purity Germanium (HPGe) detector and a tested scintillator coupled to a PMT. The detectors were set in a face...

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Bibliographic Details
Published in:Radiation measurements 2010-03, Vol.45 (3), p.605-607
Main Authors: Swiderski, Lukasz, Moszyński, Marek, Czarnacki, Wiesław, Iwanowska, Joanna, Syntfeld-Każuch, Agnieszka, Szczęśniak, Tomasz, Pausch, Guntram, Plettner, Cristina, Roemer, Katja
Format: Article
Language:English
Subjects:
Compton edge
Earth sciences
Earth, ocean, space
Energy calibration
Exact sciences and technology
Geochronology
Isotope geochemistry. Geochronology
Organic scintillators
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Summary:A method based on a Compton coincidence technique was applied to measure in a wide energy range the position of Compton edge in organic scintillators. The experimental setup comprised a High Purity Germanium (HPGe) detector and a tested scintillator coupled to a PMT. The detectors were set in a face-to-face geometry and the source was placed between them. Thus gating on events backscattered in the tested scintillator and detected in HPGe allowed measuring of Compton edge position for a given γ-ray energy. The presented method provides a valuable tool for energy calibration of low-Z scintillators.
ISSN:1350-4487
1879-0925
DOI:10.1016/j.radmeas.2009.10.015