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JAEA Reports

Application of Cherenkov light observation to reactor measurements, 3; Evaluation of spent fuel elements of LWRs with Cherenkov light estimation system

Yamamoto, Keiichi; Takeuchi, Tomoaki; Hayashi, Takayasu*; Kosuge, Fumiaki*; Tsuchiya, Kunihiko

JAEA-Testing 2016-002, 25 Pages, 2016/11

JAEA-Testing-2016-002.pdf:4.97MB

Development of the reactor measurement system has been carried out to obtain the real-time in-core nuclear and thermal information, where the quantitative measurement of brightness of Cherenkov light was investigated. The system would be applied as a monitoring system in severe accidents and for the advanced operation management technology in existing LWRs. This report summarized the modification of Cherenkov light estimation system described JAEA-Testing 2015-001 and the result of the burn-up evaluation by Cherenkov light image emitted from spent fuel elements of LWRs with the modified system.

JAEA Reports

Application of Cherenkov light observation to reactor measurements, 2; Design and trial fabrication of Cherenkov light estimation system

Yamamoto, Keiichi; Takeuchi, Tomoaki; Hayashi, Takayasu*; Kosuge, Fumiaki*; Sano, Tadafumi*; Tsuchiya, Kunihiko

JAEA-Testing 2015-001, 25 Pages, 2015/11

JAEA-Testing-2015-001.pdf:3.52MB

Development of the reactor measurement system was started to obtain the real-time in-core nuclear and thermal information, where the quantitative measurement of brightness of Cherenkov light was investigated. This report was summarized the results of design and trial fabrication of the Cherenkov light estimation system from thermal power evaluation from Cherenkov light image emitted from the fuel elements. The developed Cherenkov light estimation system was verified with the Cherenkov light image emitted from the fuels in the core of Kyoto University Research Reactor (KUR). From the results, it is necessary to improve the observation method of Cherenkov light in the reactor and the evaluation method of the brightness of Cherenkov light. In future, the system will be applied for the evaluation of burn-up of spent fuels from the Cherenkov light emitted from the spent fuel assemblies in LWRs.

JAEA Reports

Application of Cherenkov light observation to reactor measurements, 1; Estimation of reactor power from Cherenkov light intensity

Yamamoto, Keiichi; Takeuchi, Tomoaki; Sano, Tadafumi*; Homma, Ryohei*; Kimura, Nobuaki; Otsuka, Noriaki; Kosuge, Fumiaki*; Nakajima, Ken*; Tsuchiya, Kunihiko

JAEA-Technology 2014-028, 56 Pages, 2015/01

JAEA-Technology-2014-028.pdf:9.23MB

Development of the reactor measurement system was started to obtain real-time in-core nuclear and thermal information, where the quantity measurement of brightness of Cherenkov light was applied. The system would be applied as monitoring system in severe accidents and for advanced operation management technology in existing LWRs. In this report, the calculation and the observation results were summarized about the quantity of the Cherenkov light caused by the $$gamma$$ and $$beta$$ ray emitted from the fuels in the core of Kyoto University Research Reactor.

Journal Articles

Radioactivity measurement of $$^{188}$$Re by Cherenkov counting

Kushita, Kohei; J.Du*

Applied Radiation and Isotopes, 49(9-11), p.1069 - 1072, 1998/00

 Times Cited Count:3 Percentile:66.6(Chemistry, Inorganic & Nuclear)

no abstracts in English

Journal Articles

Liquid scintillation counting technique measurements for cerenkov radiation and $$alpha$$-rays

Radioisotopes, 24(10), p.71 - 77, 1975/10

no abstracts in English

Journal Articles

Radiation Chemistry

Denki Kogyo Nempo, p.486 - 488, 1972/00

no abstracts in English

Oral presentation

Investigation of a low cost neutron detector for an active neutron system

Komeda, Masao; Ozu, Akira; Toh, Yosuke

no journal, , 

no abstracts in English

Oral presentation

Experiments of an active neutron method using a Cherenkov detector

Komeda, Masao; Ozu, Akira; Toh, Yosuke

no journal, , 

no abstracts in English

Oral presentation

Low-cost non-destructive measurement system for nuclear materials by using Cherenkov detectors

Komeda, Masao; Toh, Yosuke; Tanabe, Kosuke*

no journal, , 

no abstracts in English

Oral presentation

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