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Takeda, Nobukazu; Kakudate, Satoshi; Matsumoto, Yasuhiro; Kozaka, Hiroshi; Aburadani, Atsushi; Negishi, Yusuke; Nakahira, Masataka*; Tesini, A.*
Fusion Engineering and Design, 85(7-9), p.1190 - 1195, 2010/12
Times Cited Count：2 Percentile：17.46(Nuclear Science & Technology)Several R&Ds for the ITER blanket remote handling system had been performed from the Engineering Design Activity phase until now and only several technical issues regarding the control system remained such as noise caused by slip ring, control of cable handling system, signal transmission through very long cable and radiation-hard amplifier. This study concentrates on these issues. As a conclusion, major issues for the control system have been solved and the ITER blanket remote handling system becomes further feasible.
Kakudate, Satoshi; Takeda, Nobukazu; Nakahira, Masataka*; Aburadani, Atsushi; Matsumoto, Yasuhiro; Kozaka, Hiroshi; Negishi, Yusuke
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no abstracts in English
Kozaka, Hiroshi; Takeda, Nobukazu; Aburadani, Atsushi; Matsumoto, Yasuhiro; Negishi, Yusuke; Kakudate, Satoshi
no journal, ,
no abstracts in English
Aburadani, Atsushi; Takeda, Nobukazu; Matsumoto, Yasuhiro; Kozaka, Hiroshi; Negishi, Yusuke; Kakudate, Satoshi
no journal, ,
no abstracts in English
Shigematsu, Soichiro; Aburadani, Atsushi; Takeda, Nobukazu; Kozaka, Hiroshi; Negishi, Yusuke; Kakudate, Satoshi
no journal, ,
no abstracts in English
Aburadani, Atsushi; Takeda, Nobukazu; Kozaka, Hiroshi; Negishi, Yusuke; Kakudate, Satoshi; Matsumoto, Yasuhiro*
no journal, ,
no abstracts in English
Aburadani, Atsushi; Kozaka, Hiroshi; Kakudate, Satoshi; Negishi, Yusuke; Matsumoto, Yasuhiro*; Nakahira, Masataka*; Tesini, A.*; Takeda, Nobukazu
no journal, ,
R&D for the major devices, rail deployment equipment and cable handling system, was performed for the ITER blanket remote handling system. Regarding the rail deployment, the relation between the Oldham's coupling used for the positioning arm and the positioning error at the end of rail was investigated. The result shows that the coupling allowing 4 mm displacement causes the positioning error of 19 mm. The possible countermeasures are suggested. Regarding the cable handling system, a possibility is shown to keep the cable tension at the adequate level by controlling the torque of the cable handling system. A schedule for the procurement of the blanket remote handling system, which will be delivered to the ITER in 2016, is also shown.
Mochizuki, Akihito; Matsui, Hiroya; Ozaki, Yusuke; Motoshima, Takayuki*; Jo, Mayumi*; Shibata, Masahito*; Negishi, Kumi*; Sakamoto, Ryo*
no journal, ,
In geological disposal of high-level radioactive waste, retrievability of the waste should be ensured until the closure of repository. It is necessary to evaluate the soundness of open pit of the repository so that safe work is possible. This study aims to quantitatively understand changes in the characteristics of concrete support in the actual underground environment. Test specimens of low-alkaline sprayed concrete that were same as those applied in 350 m gallery of the Horonobe Underground Research Laboratory were prepared, placed in the same gallery, and physical and chemical characteristics of the specimens were investigated periodically. This presentation will report on the overview of the study and parts of results to date.
Shibata, Masahito*; Negishi, Kumi*; Sakamoto, Ryo*; Matsui, Hiroya; Mochizuki, Akihito; Ozaki, Yusuke
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no abstracts in English
