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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.

Oral presentation

Development of the restoration support system for environment, 3; Verification of the system

Motohashi, Jun; Terauchi, Makoto; Yamashita, Takuya; Tagawa, Akihiro; Ishikawa, Satoshi*; Yamaguchi, Katsuyoshi*; Kosuge, Fumiaki*; Kinoshita, Naoki*; Homma, Ryohei*

no journal, , 

no abstracts in English

Oral presentation

Development of the restoration support system for environment, 1; Outline of the system

Yamashita, Takuya; Terauchi, Makoto; Motohashi, Jun; Tagawa, Akihiro; Ishikawa, Satoshi*; Yamaguchi, Katsuyoshi*; Kosuge, Fumiaki*; Kinoshita, Naoki*; Homma, Ryohei*

no journal, , 

The Restoration Support System for Environment "RESET" was developed to estimate the dose rate of post-decontamination and assist planning of the future decontamination by using a cloud computer installed on the Internet. This paper describes the outline of development of the system.

Oral presentation

Development of the restoration support system for environment, 2; Design of the system

Yamashita, Takuya; Tagawa, Akihiro; Terauchi, Makoto; Motohashi, Jun; Homma, Ryohei*; Ishikawa, Satoshi*; Yamaguchi, Katsuyoshi*; Kosuge, Fumiaki*; Kinoshita, Naoki*

no journal, , 

In order to support decontamination activities, the system which evaluates the reduction effect of the environmental dose rate before and after the decontamination for a wade area was developed.

Oral presentation

Evaluation of reactor thermal power with imaging of Cherenkov light by CCD camera

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

no journal, , 

no abstracts in English

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