Measurement of anthropogenic radionuclides in post-Fukushima Pacific seawater samples
Following the accident at the Daiichi Fukushima nuclear power plant in 2011, a vast number of Pacific seawater samples from many locations far from Fukushima have been collected by Japanese investigators. Due to dilution, the activities of radionuclides from North Pacific seawater samples are very l...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2015-09-01
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| Series: | Nukleonika |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nuka-2015-0112 |
| _version_ | 1798032428860702720 |
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| author | Lutter Guillaume Tzika Faidra Hult Mikael Aoyama Michio Hamajima Yasunori Marissens Gerd Stroh Heiko |
| author_facet | Lutter Guillaume Tzika Faidra Hult Mikael Aoyama Michio Hamajima Yasunori Marissens Gerd Stroh Heiko |
| author_sort | Lutter Guillaume |
| collection | DOAJ |
| description | Following the accident at the Daiichi Fukushima nuclear power plant in 2011, a vast number of Pacific seawater samples from many locations far from Fukushima have been collected by Japanese investigators. Due to dilution, the activities of radionuclides from North Pacific seawater samples are very low, which calls for extraordinary measures when being measured. This study focuses on the metrological aspects of the gamma-ray spectrometry measurements performed on such samples in two underground laboratories; at HADES (by JRC-IRMM in Belgium), and at Ogoya (by Kanazawa University in Japan). Due to many samples and long measurement times, all available HPGe detectors needed to be employed. In addition to single coaxial detectors, this involved multidetector systems and well detectors. Optimization of detection limits for different radionuclides and detectors was performed using Monte Carlo simulations. |
| first_indexed | 2024-04-11T20:13:45Z |
| format | Article |
| id | doaj.art-78e1640f71554158a7d647ea95524bc4 |
| institution | Directory Open Access Journal |
| issn | 0029-5922 |
| language | English |
| last_indexed | 2024-04-11T20:13:45Z |
| publishDate | 2015-09-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Nukleonika |
| spelling | doaj.art-78e1640f71554158a7d647ea95524bc42022-12-22T04:05:02ZengSciendoNukleonika0029-59222015-09-0160354555010.1515/nuka-2015-0112nuka-2015-0112Measurement of anthropogenic radionuclides in post-Fukushima Pacific seawater samplesLutter Guillaume0Tzika Faidra1Hult Mikael2Aoyama Michio3Hamajima Yasunori4Marissens Gerd5Stroh Heiko6EC-JRC-IRMM, Retieseweg 111, B-2440 Geel, Belgium, Tel.: +32 14 571269, Fax: +32 14 584273EC-JRC-IRMM, Retieseweg 111, B-2440 Geel, Belgium, Tel.: +32 14 571269, Fax: +32 14 584273EC-JRC-IRMM, Retieseweg 111, B-2440 Geel, Belgium, Tel.: +32 14 571269, Fax: +32 14 584273Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima, 963-8811 Japan and Meteorological Research Institute, 1-1 Nagamine, Tsukuba, Ibaraki 305-0052, JapanKanazawa University, O-24 Tatsunokuchi, Nomi, Ishikawa 923-1224, JapanEC-JRC-IRMM, Retieseweg 111, B-2440 Geel, Belgium, Tel.: +32 14 571269, Fax: +32 14 584273EC-JRC-IRMM, Retieseweg 111, B-2440 Geel, Belgium, Tel.: +32 14 571269, Fax: +32 14 584273Following the accident at the Daiichi Fukushima nuclear power plant in 2011, a vast number of Pacific seawater samples from many locations far from Fukushima have been collected by Japanese investigators. Due to dilution, the activities of radionuclides from North Pacific seawater samples are very low, which calls for extraordinary measures when being measured. This study focuses on the metrological aspects of the gamma-ray spectrometry measurements performed on such samples in two underground laboratories; at HADES (by JRC-IRMM in Belgium), and at Ogoya (by Kanazawa University in Japan). Due to many samples and long measurement times, all available HPGe detectors needed to be employed. In addition to single coaxial detectors, this involved multidetector systems and well detectors. Optimization of detection limits for different radionuclides and detectors was performed using Monte Carlo simulations.https://doi.org/10.1515/nuka-2015-0112detection limit · fukushima · gamma-ray spectrometry · monte carlo · radiocesium · underground laboratory |
| spellingShingle | Lutter Guillaume Tzika Faidra Hult Mikael Aoyama Michio Hamajima Yasunori Marissens Gerd Stroh Heiko Measurement of anthropogenic radionuclides in post-Fukushima Pacific seawater samples Nukleonika detection limit · fukushima · gamma-ray spectrometry · monte carlo · radiocesium · underground laboratory |
| title | Measurement of anthropogenic radionuclides in post-Fukushima Pacific seawater samples |
| title_full | Measurement of anthropogenic radionuclides in post-Fukushima Pacific seawater samples |
| title_fullStr | Measurement of anthropogenic radionuclides in post-Fukushima Pacific seawater samples |
| title_full_unstemmed | Measurement of anthropogenic radionuclides in post-Fukushima Pacific seawater samples |
| title_short | Measurement of anthropogenic radionuclides in post-Fukushima Pacific seawater samples |
| title_sort | measurement of anthropogenic radionuclides in post fukushima pacific seawater samples |
| topic | detection limit · fukushima · gamma-ray spectrometry · monte carlo · radiocesium · underground laboratory |
| url | https://doi.org/10.1515/nuka-2015-0112 |
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