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-rays radiolysis (Contract research); FY2021 Nuclear Energy Science & Technology and Human Resource Development ProjectCollaborative Laboratories for Advanced Decommissioning Science; Tohoku University*
JAEA-Review 2022-069, 114 Pages, 2023/03
JAEA-Review-2022-069.pdf:5.91MB
The Collaborative Laboratories for Advanced Decommissioning Science (CLADS), Japan Atomic Energy Agency (JAEA), had been conducting the Nuclear Energy Science & Technology and Human Resource Development Project (hereafter referred to "the Project") in FY2021. The Project aims to contribute to solving problems in the nuclear energy field represented by the decommissioning of the Fukushima Daiichi Nuclear Power Station (1F), Tokyo Electric Power Company Holdings, Inc. (TEPCO). For this purpose, intelligence was collected from all over the world, and basic research and human resource development were promoted by closely integrating/collaborating knowledge and experiences in various fields beyond the barrier of conventional organizations and research fields. The sponsor of the Project was moved from the Ministry of Education, Culture, Sports, Science and Technology to JAEA since the newly adopted proposals in FY2018. On this occasion, JAEA constructed a new research system where JAEA-academia collaboration is reinforced and medium-to-long term research/development and human resource development contributing to the decommissioning are stably and consecutively implemented. Among the adopted proposals in FY2020, this report summarizes the research results of the "Development of a new corrosion mitigation technology using nanobubbles toward corrosion mitigation in PCV system under the influence of //-rays radiolysis" conducted in FY2021. In this work, in order to ensure the long-term reliability of steel structures that ensure important confinement functions in the debris removal process, such as existing PCVs and newly constructed negative pressure maintenance systems and piping, corrosion phenomena in wet environments where - and -ray emitting nuclides come into contact with steel are clarified for the first time.
//-rays radiolysis (Contract research); FY2020 Nuclear Energy Science & Technology and Human Resource Development ProjectCollaborative Laboratories for Advanced Decommissioning Science; Tohoku University*
JAEA-Review 2022-002, 85 Pages, 2022/06
JAEA-Review-2022-002.pdf:3.39MB
The Collaborative Laboratories for Advanced Decommissioning Science (CLADS), Japan Atomic Energy Agency (JAEA), had been conducting the Nuclear Energy Science & Technology and Human Resource Development Project (hereafter referred to "the Project") in FY2020. The Project aims to contribute to solving problems in the nuclear energy field represented by the decommissioning of the Fukushima Daiichi Nuclear Power Station, Tokyo Electric Power Company Holdings, Inc. (TEPCO). For this purpose, intelligence was collected from all over the world, and basic research and human resource development were promoted by closely integrating/collaborating knowledge and experiences in various fields beyond the barrier of conventional organizations and research fields. The sponsor of the Project was moved from the Ministry of Education, Culture, Sports, Science and Technology to JAEA since the newly adopted proposals in FY2018. On this occasion, JAEA constructed a new research system where JAEA-academia collaboration is reinforced and medium-to-long term research/development and human resource development contributing to the decommissioning are stably and consecutively implemented. Among the adopted proposals in FY2020, this report summarizes the research results of the "Development of a new corrosion mitigation technology using nanobubbles toward corrosion mitigation in PCV system under the influence of //-rays radiolysis" conducted in FY2020. In this work, in order to ensure the long-term reliability of steel structures that ensure important confinement functions in the debris removal process, such as existing PCVs and newly constructed negative pressure maintenance systems and piping, corrosion phenomena in wet environments where - and -ray emitting nuclides come into contact with steel are clarified for the first time.
-,()-rays and neutronsUsuda, Shigekazu; Sakurai, Satoshi; *
Nuclear Instruments and Methods in Physics Research A, 388(1-2), p.193 - 198, 1997/00
Times Cited Count：37 Percentile：91.4(Instruments & Instrumentation)no abstracts in English
and () countingUsuda, Shigekazu; Abe, Hitoshi
Journal of Nuclear Science and Technology, 31(1), p.73 - 79, 1994/01
Times Cited Count：15 Percentile：77(Nuclear Science & Technology)no abstracts in English
, and rays with phoswich detectorsUsuda, Shigekazu; Abe, Hitoshi; Mihara, Akira
Journal of Alloys and Compounds, 213-214, p.437 - 439, 1994/00
Times Cited Count：13 Percentile：68.91(Chemistry, Physical)no abstracts in English
, and raysUsuda, Shigekazu; Abe, Hitoshi; Mihara, Akira
Nuclear Instruments and Methods in Physics Research A, 340, p.540 - 545, 1994/00
Times Cited Count：26 Percentile：87.85(Instruments & Instrumentation)no abstracts in English
and () countingUsuda, Shigekazu
Journal of Nuclear Science and Technology, 29(9), p.927 - 929, 1992/09
no abstracts in English
and () counting using a CsI(T1) scintillatorUsuda, Shigekazu; Abe, Hitoshi
Nuclear Instruments and Methods in Physics Research A, 321, p.242 - 246, 1992/00
Times Cited Count：17 Percentile：81.26(Instruments & Instrumentation)no abstracts in English
and () rays from solid and solution sources with several solid scintillatorsUsuda, Shigekazu; Mihara, Akira; Abe, Hitoshi
Nuclear Instruments and Methods in Physics Research A, 321, p.247 - 253, 1992/00
Times Cited Count：21 Percentile：85.56(Instruments & Instrumentation)no abstracts in English
