Low-background gamma-ray spectrometry for the international monitoring system.

Autor: Greenwood LR; Pacific Northwest National Laboratory, Richland, WA 99352, United States. Electronic address: larry.greenwood@pnnl.gov., Cantaloub MG; Pacific Northwest National Laboratory, Richland, WA 99352, United States., Burnett JL; Pacific Northwest National Laboratory, Richland, WA 99352, United States., Myers AW; Pacific Northwest National Laboratory, Richland, WA 99352, United States., Overman CT; Pacific Northwest National Laboratory, Richland, WA 99352, United States., Forrester JB; Pacific Northwest National Laboratory, Richland, WA 99352, United States., Glasgow BG; Pacific Northwest National Laboratory, Richland, WA 99352, United States., Miley HS; Pacific Northwest National Laboratory, Richland, WA 99352, United States.
Jazyk: angličtina
Zdroj: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2017 Aug; Vol. 126, pp. 240-242. Date of Electronic Publication: 2016 Dec 28.
DOI: 10.1016/j.apradiso.2016.12.034
Abstrakt: PNNL has developed two low-background gamma-ray spectrometers in a new shallow underground laboratory, thereby significantly improving its ability to detect low levels of gamma-ray emitting fission or activation products in airborne particulate in samples from the IMS (International Monitoring System). The combination of cosmic veto panels, dry nitrogen gas to reduce radon and low background shielding results in a reduction of the background count rate by about a factor of 100 compared to detectors operating above ground at our laboratory.
(Copyright © 2016 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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