Low-background gamma-ray spectrometry for the international monitoring system
| Autor: | Harry S. Miley, Joel B. Forrester, Michael G. Cantaloub, A.W. Myers, B.G. Glasgow, Cory T. Overman, J. L. Burnett, Lawrence R. Greenwood |
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| Rok vydání: | 2016 |
| Předmět: |
Radiation
Spectrometer Chemistry Fission Nuclear engineering Radiochemistry Detector chemistry.chemical_element Monitoring system Radon 010501 environmental sciences Particulates 010403 inorganic & nuclear chemistry 01 natural sciences 0104 chemical sciences Electromagnetic shielding Gamma spectroscopy 0105 earth and related environmental sciences |
| Zdroj: | Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 126 |
| ISSN: | 1872-9800 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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