A new versatile underground gamma-ray spectrometry system

The newest development in IRMM's underground analytical facility is a large lead shield lined with copper that is versatile and can host several detectors of different types. The characteristics and the background performance of the shield are described for four different detector configuration...

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Bibliographic Details
Published in:Applied radiation and isotopes 2013-11, Vol.81, p.81-86
Main Authors: Lutter, Guillaume, Hult, Mikael, Marissens, Gerd, Andreotti, Erica, Rosengård, Ulf, Misiaszek, Marcin, Yüksel, Ayhan, Sahin, Namik
Format: Article
Language:English
Subjects:
Compton suppression
Equipment Design
Equipment Failure Analysis
HPGe-detector
Low-level gamma-ray spectrometry
Radiation Dosage
Radiation Protection - instrumentation
Radioisotopes - analysis
Radiometry - instrumentation
Reproducibility of Results
Sensitivity and Specificity
Shielding
Spectrometry, Gamma - instrumentation
Underground laboratory
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Summary:The newest development in IRMM's underground analytical facility is a large lead shield lined with copper that is versatile and can host several detectors of different types. The characteristics and the background performance of the shield are described for four different detector configurations involving HPGe-detectors and NaI-detectors. The shield has been designed to swap detectors, while still maintaining a low background. This enables testing of detectors for other experiments and optimisation of detection limits for specific radionuclides in different projects. •A new gamma-ray spectrometer was installed in the underground laboratory HADES.•It is a versatile ultra low-background gamma-ray spectrometer system (Pacman).•It has a large inner volume and can host large samples as well as several detectors.•The background characteristics are presented for different HPGe configurations.•Detection limits for various anthropogenic radionuclides are given.
ISSN:0969-8043
1872-9800
DOI:10.1016/j.apradiso.2013.03.079