The Sandwich spectrometer for ultra low-level γ-ray spectrometry
The technical details and performance of the newly developed Sandwich spectrometer for ultra low-level γ-ray spectrometry are presented. The spectrometer, which consists of two HPGe detectors, an active muon shield and a lead/copper shield with a convenient and rapid opening mechanism, is located in...
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Veröffentlicht in: | Applied radiation and isotopes 2009-05, Vol.67 (5), p.731-735 |
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Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
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Zusammenfassung: | The technical details and performance of the newly developed Sandwich spectrometer for ultra low-level γ-ray spectrometry are presented. The spectrometer, which consists of two HPGe detectors, an active muon shield and a lead/copper shield with a convenient and rapid opening mechanism, is located in an underground laboratory at a depth of 500
m water equivalent. The data is collected in list mode, which enables off-line data analysis to identify muon-induced events and possible Ge detector crosstalk due to Compton scattering. The background count-rate from 40 to 2700
keV normalised to the mass of the Ge crystals is 220
day
−1
kg
−1. |
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ISSN: | 0969-8043 1872-9800 |
DOI: | 10.1016/j.apradiso.2009.01.026 |