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Journal article

Background reduction at DTU Nutech surface gamma laboratory

By Marković, Nikola1; Roos, Per1,2,3; Nielsen, Sven Poul1,2,3; Cai, Xiao Xiao2,4

From

The Hevesy Laboratory, Center for Nuclear Technologies, Technical University of Denmark1

Center for Nuclear Technologies, Technical University of Denmark2

Radioecology and Tracer Studies, Center for Nuclear Technologies, Technical University of Denmark3

Radiation Physics, Center for Nuclear Technologies, Technical University of Denmark4

Sources of background and background variation in a BEGe type HPGe detector located in a surface laboratory were identified. Different strategies for background reduction were applied. A cosmic veto was installed, and optimised using a digital acquisition system in list-mode with time-stamped data. This resulted in the reduction of total background by a factor of 1.4.

Thermal and fast neutron fluxes were also calculated. The radon induced background component and its variation were significantly reduced.

Language: English
Year: 2019
Pages: 30-38
ISSN: 09698043 and 18729800
Types: Journal article
DOI: 10.1016/j.apradiso.2019.05.014
ORCIDs: Marković, Nikola and Nielsen, Sven Poul
Keywords

Anticoincidence Cosmic veto Gamma spectrometry HPGe detector Low-level

Other keywords

Air Pollutants, Radioactive Radiation Monitoring Radon Spectrometry, Gamma

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