Development of a low-level background gamma-ray spectrometer by KRISS
A new low-level background and high-efficiency gamma-ray spectrometric system, to be used mainly for the activity certification of natural-matrix certified reference materials (CRMs) and environmental reference materials (RMs) that has been developed on the grounds of the Korea Research Institute of...
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| Veröffentlicht in: | Applied radiation and isotopes 2008-06, Vol.66 (6), p.845-849 |
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| container_issue | 6 |
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| container_title | Applied radiation and isotopes |
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| creator | Lee, K.B. Park, Tae Soon Lee, Jong Man Oh, Phil-Je Lee, Sang-Han |
| description | A new low-level background and high-efficiency gamma-ray spectrometric system, to be used mainly for the activity certification of natural-matrix certified reference materials (CRMs) and environmental reference materials (RMs) that has been developed on the grounds of the Korea Research Institute of Standards and Science (KRISS). The spectrometer consists of a low-background high-purity germanium detector with a relative efficiency of 120% and various shielding devices to reduce radiation background. The cabinet-shaped device made of 10
ton of shielding materials encloses the germanium detector for protection against background from natural radioactivity and neutrons. Three plates of 50-mm-thick plastic scintillation detectors on top of the passive shielding cabinet suppress cosmogenic background by detecting high-energetic cosmic muons bombarding the germanium detector. The measured background rate of the spectrometer for the energy range 50–3000
keV was 1.72
s
–1. |
| doi_str_mv | 10.1016/j.apradiso.2008.02.083 |
| format | Article |
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ton of shielding materials encloses the germanium detector for protection against background from natural radioactivity and neutrons. Three plates of 50-mm-thick plastic scintillation detectors on top of the passive shielding cabinet suppress cosmogenic background by detecting high-energetic cosmic muons bombarding the germanium detector. The measured background rate of the spectrometer for the energy range 50–3000
keV was 1.72
s
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ton of shielding materials encloses the germanium detector for protection against background from natural radioactivity and neutrons. Three plates of 50-mm-thick plastic scintillation detectors on top of the passive shielding cabinet suppress cosmogenic background by detecting high-energetic cosmic muons bombarding the germanium detector. The measured background rate of the spectrometer for the energy range 50–3000
keV was 1.72
s
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ton of shielding materials encloses the germanium detector for protection against background from natural radioactivity and neutrons. Three plates of 50-mm-thick plastic scintillation detectors on top of the passive shielding cabinet suppress cosmogenic background by detecting high-energetic cosmic muons bombarding the germanium detector. The measured background rate of the spectrometer for the energy range 50–3000
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| identifier | ISSN: 0969-8043 |
| ispartof | Applied radiation and isotopes, 2008-06, Vol.66 (6), p.845-849 |
| issn | 0969-8043 1872-9800 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_69171077 |
| source | Elsevier ScienceDirect Journals |
| subjects | Anticoincidence shield Background reduction Gamma-ray spectrometer Low-level background |
| title | Development of a low-level background gamma-ray spectrometer by KRISS |
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