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JAEA Reports

Fast ion loss calculation in the ripple compensation magnetic field by ferritic steel insertion using the FEMAG/OFMC code

Urata, Kazuhiro*; Shinohara, Koji; Suzuki, Masanobu*; Kamata, Isao*

JAERI-Data/Code 2004-007, 45 Pages, 2004/03

JAERI-Data-Code-2004-007.pdf:5.63MB

As the toroidal magnetic field generated by discrete TF coils involves magnetic field ripple, the fast ion loss is induced to damage vacuum vessel in tokamaks. An idea of ripple compensation using ferromagnetic is proposed. Since low activation ferritic steel have low activation and thermal conduction properties, the ferritic steel is planned to install in tokamak reactors. Installation of ferritic steel plates with toroidal symmetry is effective to compensate ripple, however in the actual devices it is difficult for interference with other components. Besides the first wall shapes are often asymmetric. So it is better to treat toroidal asymmetry to evaluate the ripple induced loss in the actual devices. For the purpose, magnetic field calculation code considering ferritic steel; FEMAG(FErrite generating MAGnetic field)has been speeded up. On the basis of this magnetic field data, OFMC (Orbit Following Monte Carlo) has been upgraded to treat toroidal asymmetry. The use of FEMAG/OFMC, applications to the JFT-2M experiments, and the national centralized tokamak facility are reported.

Journal Articles

Tomographic reconstruction of bolometry for JT-60U diverted tokamak characterization

Konoshima, Shigeru; Leonard, A. W.*; Ishijima, Tatsuo*; Shimizu, Katsuhiro; Kamata, Isao*; Meyer, W. H.*; Sakurai, Shinji; Kubo, Hirotaka; Hosogane, Nobuyuki; Tamai, Hiroshi

Plasma Physics and Controlled Fusion, 43(7), p.959 - 983, 2001/07

 Times Cited Count:27 Percentile:33.99(Physics, Fluids & Plasmas)

no abstracts in English

JAEA Reports

None

Asakura, Y.*; Miyahara, Kenji; *; Masui, J.*; Kondo, Isao*; *; *; Kamata, Masayuki

PNC-TN852 81-18, 266 Pages, 1981/05

PNC-TN852-81-18.pdf:6.24MB

None

JAEA Reports

None

Miyahara, Kenji; Asakura, Y.*; *; Masui, J.*; Kondo, Isao*; *; Kamata, Masayuki; *

PNC-TN852 81-15, 46 Pages, 1981/04

PNC-TN852-81-15.pdf:2.23MB

None

Oral presentation

SOAF: A Grid-based framework for integrating large-scale long-run applications

Tatekawa, Takayuki; Suzuki, Yoshio; Takemiya, Hiroshi; Hayashi, Nobuhiko; Kamata, Isao

no journal, , 

no abstracts in English

5 (Records 1-5 displayed on this page)
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