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Koide, Yoshihiko; Yoshida, Kiyoshi; Wanner, M.*; Barabaschi, P.*; Cucchiaro, A.*; Davis, S.*; Decool, P.*; Di Pietro, E.*; Disset, G.*; Genini, L.*; et al.
Nuclear Fusion, 55(8), p.086001_1 - 086001_7, 2015/08
Times Cited Count：32 Percentile：83.12(Physics, Fluids & Plasmas)The most distinctive feature of the superconducting magnet system for JT-60SA is the optimized coil structure in terms of the space utilization as well as the highly accurate coil manufacturing, thus meeting the requirements for the steady-state tokamak research: A conceptually new outer inter-coil structure separated from the casing is introduced to the toroidal field coils to realize their slender shape, allowing large-bore diagnostic ports for detailed plasma measurements. A method to minimize the manufacturing error of the equilibrium-field coils has been established, aiming at the precise plasma shape/position control. A compact butt-joint has been successfully developed for the Central Solenoid, which allows an optimized utilization of the limited space for the Central Solenoid to extend the duration of the plasma pulse.
Shibata, Yuichi; Tamura, Masanori; Sato, Shunichi; Iimura, Izumi; Usui, Kazuya
no journal, ,
no abstracts in English
Shibata, Yuichi; Tamura, Masanori; Iimura, Izumi; Usui, Kazuya
no journal, ,
Pu-contaminated solid wastes such as combustible, incombustible and chlorine contained waste have been generated during MOX fuel fabrication in the Japan Atomic Energy Agency (JAEA). Incineration of chlorinated wastes caused the problems such as corrosion of the equipments and dust load against the exhaust system. The JAEA had designed and manufactured a new type incineration system for chlorinated wastes and combustible wastes based on past experience gained by the operation of the Plutonium contaminated Waste Treatment Facility (PWTF) to solve the problems. The incineration system has been operating since June 2002. Plutonium contaminated solid wastes treated so far amount to 216 m
(30 ton). The volume reduction ratio was approximately 45 (weight reduction ratio is approximately 12). The incineration system had been operated without contamination in the work environment due to maintain its air-tightness. And significant corrosion wastage could not be observed.
Shibata, Yuichi; Iimura, Izumi; Usui, Kazuya
no journal, ,
The Japan Atomic Energy Agency (JAEA) has designed and manufactured a new type incineration system for chlorine containing wastes and combustible wastes generated from MOX fuel fabrication facilities. The incineration system has been operating since June 2002. The plant has attained around 6000 hours of operation and treated about 46.4ton (290m) of plutonium contaminated solid wastes, as of today. Volatile chloride accumulated at the exhaust gas cooler, resulting in a flow obstruction. The incineration system has successfully and stably operated with periodic cleanup of the accumulated volatile chloride by using remote handling tools.
Aoki, Isao; Minouchi, Hiroyuki; Kondo, Hisashi; Usui, Kazuya
no journal, ,
no abstracts in English
