The Experts below are selected from a list of 3756 Experts worldwide ranked by ideXlab platform
Atsushi Shinohara - One of the best experts on this subject based on the ideXlab platform.
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First determination of Pu isotopes (239Pu, 240Pu and 241Pu) in radioactive particles derived from Fukushima Daiichi Nuclear Power Plant accident.
Scientific reports, 2019Co-Authors: Junya Igarashi, Jian Zheng, Zhijian Zhang, Kazuhiko Ninomiya, Yukihiko Satou, Miho Fukuda, Tatsuo Aono, Atsushi ShinoharaAbstract:Radioactive particles were released into the environment during the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident. Many studies have been conducted to elucidate the chemical composition of released radioactive particles in order to understand their formation process. However, whether radioactive particles contain nuclear fuel radionuclides remains to be investigated. Here, we report the first determination of Pu isotopes in radioactive particles. To determine the Pu isotopes (239Pu, 240Pu and 241Pu) in radioactive particles derived from the FDNPP accident which were free from the influence of global fallout, Radiochemical Analysis and inductively coupled plasma-mass spectrometry measurements were conducted. Radioactive particles derived from unit 1 and unit 2 or 3 were analyzed. For the radioactive particles derived from unit 1, activities of 239+240Pu and 241Pu were (1.70-7.06) × 10-5 Bq and (4.10-8.10) × 10-3 Bq, respectively and atom ratios of 240Pu/239Pu and 241Pu/239Pu were 0.330-0.415 and 0.162-0.178, respectively. These ratios were consistent with the simulation results from ORIGEN code and measurements from various environmental samples. In contrast, Pu was not detected in the radioactive particles derived from unit 2 or 3. The difference in Pu contents is clear evidence towards different formation processes of radioactive particles, and detailed formation processes can be investigated from Pu Analysis.
Tingliang Xie - One of the best experts on this subject based on the ideXlab platform.
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microextractors applied in nuclear spent fuel reprocessing micro mini plants and Radiochemical Analysis
Critical Reviews in Environmental Science and Technology, 2019Co-Authors: Tao Wang, Tingliang XieAbstract:Highly radioactive and hazardous radionuclides in nuclear-spent fuel are harmful to the environment and hinder further development of the nuclear energy industry. Microextractors, with the advantag...
Junya Igarashi - One of the best experts on this subject based on the ideXlab platform.
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First determination of Pu isotopes (239Pu, 240Pu and 241Pu) in radioactive particles derived from Fukushima Daiichi Nuclear Power Plant accident.
Scientific reports, 2019Co-Authors: Junya Igarashi, Jian Zheng, Zhijian Zhang, Kazuhiko Ninomiya, Yukihiko Satou, Miho Fukuda, Tatsuo Aono, Atsushi ShinoharaAbstract:Radioactive particles were released into the environment during the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident. Many studies have been conducted to elucidate the chemical composition of released radioactive particles in order to understand their formation process. However, whether radioactive particles contain nuclear fuel radionuclides remains to be investigated. Here, we report the first determination of Pu isotopes in radioactive particles. To determine the Pu isotopes (239Pu, 240Pu and 241Pu) in radioactive particles derived from the FDNPP accident which were free from the influence of global fallout, Radiochemical Analysis and inductively coupled plasma-mass spectrometry measurements were conducted. Radioactive particles derived from unit 1 and unit 2 or 3 were analyzed. For the radioactive particles derived from unit 1, activities of 239+240Pu and 241Pu were (1.70-7.06) × 10-5 Bq and (4.10-8.10) × 10-3 Bq, respectively and atom ratios of 240Pu/239Pu and 241Pu/239Pu were 0.330-0.415 and 0.162-0.178, respectively. These ratios were consistent with the simulation results from ORIGEN code and measurements from various environmental samples. In contrast, Pu was not detected in the radioactive particles derived from unit 2 or 3. The difference in Pu contents is clear evidence towards different formation processes of radioactive particles, and detailed formation processes can be investigated from Pu Analysis.
Tao Wang - One of the best experts on this subject based on the ideXlab platform.
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microextractors applied in nuclear spent fuel reprocessing micro mini plants and Radiochemical Analysis
Critical Reviews in Environmental Science and Technology, 2019Co-Authors: Tao Wang, Tingliang XieAbstract:Highly radioactive and hazardous radionuclides in nuclear-spent fuel are harmful to the environment and hinder further development of the nuclear energy industry. Microextractors, with the advantag...
Tatsuo Aono - One of the best experts on this subject based on the ideXlab platform.
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First determination of Pu isotopes (239Pu, 240Pu and 241Pu) in radioactive particles derived from Fukushima Daiichi Nuclear Power Plant accident.
Scientific reports, 2019Co-Authors: Junya Igarashi, Jian Zheng, Zhijian Zhang, Kazuhiko Ninomiya, Yukihiko Satou, Miho Fukuda, Tatsuo Aono, Atsushi ShinoharaAbstract:Radioactive particles were released into the environment during the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident. Many studies have been conducted to elucidate the chemical composition of released radioactive particles in order to understand their formation process. However, whether radioactive particles contain nuclear fuel radionuclides remains to be investigated. Here, we report the first determination of Pu isotopes in radioactive particles. To determine the Pu isotopes (239Pu, 240Pu and 241Pu) in radioactive particles derived from the FDNPP accident which were free from the influence of global fallout, Radiochemical Analysis and inductively coupled plasma-mass spectrometry measurements were conducted. Radioactive particles derived from unit 1 and unit 2 or 3 were analyzed. For the radioactive particles derived from unit 1, activities of 239+240Pu and 241Pu were (1.70-7.06) × 10-5 Bq and (4.10-8.10) × 10-3 Bq, respectively and atom ratios of 240Pu/239Pu and 241Pu/239Pu were 0.330-0.415 and 0.162-0.178, respectively. These ratios were consistent with the simulation results from ORIGEN code and measurements from various environmental samples. In contrast, Pu was not detected in the radioactive particles derived from unit 2 or 3. The difference in Pu contents is clear evidence towards different formation processes of radioactive particles, and detailed formation processes can be investigated from Pu Analysis.