Performances of halide scintillators for the dosimetry based on gamma-ray spectrometry for environmental monitoring systems
High pressure ion chambers (HPIC) and NaI(Tl) scintillation detectors are widely used to monitor the ambient dose equivalent rate H∗(10) within and around the Korean nuclear facilities. However, HPIC cannot provide spectrometric information and NaI(Tl) detector is limited in identifying nuclides, su...
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Elsevier
2025-02-01
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| Series: | Nuclear Engineering and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573324004212 |
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| author | Wanook Ji Eunjoong Lee Young-Yong Ji |
| author_facet | Wanook Ji Eunjoong Lee Young-Yong Ji |
| author_sort | Wanook Ji |
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| description | High pressure ion chambers (HPIC) and NaI(Tl) scintillation detectors are widely used to monitor the ambient dose equivalent rate H∗(10) within and around the Korean nuclear facilities. However, HPIC cannot provide spectrometric information and NaI(Tl) detector is limited in identifying nuclides, such as 131I, 134Cs, and 137Cs, released from nuclear facilities owing to its insufficient energy resolution. This study employed four halide scintillators – LaBr3(Ce), CeBr3, and SrI2(Eu) – to measure the ambient dose equivalent rate and detect gamma nuclides from measured energy spectrum. First, the pulse–shaping time in the signal processing unit was optimized for each scintillator. Second, energy resolution and counting efficiency were estimated for 137Cs and 60Co. Finally, an irradiation test was performed to estimate the dose rate. Based on these results, LaBr3(Ce) and NaI(Tl) were selected as in situ gamma spectrometry system for measuring environmental radiation, and field experiments were conducted near the Fukushima Daiichi nuclear power plant to measure the dose rate. |
| format | Article |
| id | doaj-art-ff352156cb0f40d3a27d0110924c1669 |
| institution | Kabale University |
| issn | 1738-5733 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
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| series | Nuclear Engineering and Technology |
| spelling | doaj-art-ff352156cb0f40d3a27d0110924c16692025-01-31T05:10:59ZengElsevierNuclear Engineering and Technology1738-57332025-02-01572103173Performances of halide scintillators for the dosimetry based on gamma-ray spectrometry for environmental monitoring systemsWanook Ji0Eunjoong Lee1Young-Yong Ji2Korea Atomic Energy Research Institute, Daejeon, 34057, Republic of KoreaKorea Atomic Energy Research Institute, Daejeon, 34057, Republic of KoreaCorresponding author.; Korea Atomic Energy Research Institute, Daejeon, 34057, Republic of KoreaHigh pressure ion chambers (HPIC) and NaI(Tl) scintillation detectors are widely used to monitor the ambient dose equivalent rate H∗(10) within and around the Korean nuclear facilities. However, HPIC cannot provide spectrometric information and NaI(Tl) detector is limited in identifying nuclides, such as 131I, 134Cs, and 137Cs, released from nuclear facilities owing to its insufficient energy resolution. This study employed four halide scintillators – LaBr3(Ce), CeBr3, and SrI2(Eu) – to measure the ambient dose equivalent rate and detect gamma nuclides from measured energy spectrum. First, the pulse–shaping time in the signal processing unit was optimized for each scintillator. Second, energy resolution and counting efficiency were estimated for 137Cs and 60Co. Finally, an irradiation test was performed to estimate the dose rate. Based on these results, LaBr3(Ce) and NaI(Tl) were selected as in situ gamma spectrometry system for measuring environmental radiation, and field experiments were conducted near the Fukushima Daiichi nuclear power plant to measure the dose rate.http://www.sciencedirect.com/science/article/pii/S1738573324004212Halide scintillatorsDosimetryGamma–ray spectrometryNaI(Tl)LaBr3(Ce)CeBr3 |
| spellingShingle | Wanook Ji Eunjoong Lee Young-Yong Ji Performances of halide scintillators for the dosimetry based on gamma-ray spectrometry for environmental monitoring systems Nuclear Engineering and Technology Halide scintillators Dosimetry Gamma–ray spectrometry NaI(Tl) LaBr3(Ce) CeBr3 |
| title | Performances of halide scintillators for the dosimetry based on gamma-ray spectrometry for environmental monitoring systems |
| title_full | Performances of halide scintillators for the dosimetry based on gamma-ray spectrometry for environmental monitoring systems |
| title_fullStr | Performances of halide scintillators for the dosimetry based on gamma-ray spectrometry for environmental monitoring systems |
| title_full_unstemmed | Performances of halide scintillators for the dosimetry based on gamma-ray spectrometry for environmental monitoring systems |
| title_short | Performances of halide scintillators for the dosimetry based on gamma-ray spectrometry for environmental monitoring systems |
| title_sort | performances of halide scintillators for the dosimetry based on gamma ray spectrometry for environmental monitoring systems |
| topic | Halide scintillators Dosimetry Gamma–ray spectrometry NaI(Tl) LaBr3(Ce) CeBr3 |
| url | http://www.sciencedirect.com/science/article/pii/S1738573324004212 |
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