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Journal Articles

Current status and future prospects of the JT-60U control system

Yonekawa, Izuru; Kawamata, Yoichi; Totsuka, Toshiyuki; Akasaka, Hiromi; Sueoka, Michiharu; Yoshida, Hidetoshi

Fusion Engineering and Design, 71(1-4), p.11 - 15, 2004/06

 Times Cited Count:5 Percentile:36.39(Nuclear Science & Technology)

The JT-60 control system based on workstation and VME-bus system features with UNIX system has been successfully performed at JT-60U advanced plasma experiment. The various hardware modifications and the adoption of the advanced plasma control algorithms have been continued to the JT-60 control system since its upgrade in 1991. The ZENKEI, supervisory control system, has entirely remodeled from its original 16 bits minicomputer and CAMAC system to the combination of workstation and VME-bus system configuration with Ethernet communication network system. The plasma control system executes real-time plasma equilibrium control command calculation within 250msec control cycle time. Each plant control subsystems are also modified along with same design concept to the ZENKEI. Currently, the minor modifications of the control system have been considered to realize longer pulse of discharge experiments without major change of the JT-60 equipment. Nearly 60 seconds of pulse length up to Ip=2MA, Bt=2T, PNBI=10MW($$sim$$30sec) plasma experiments will start from October in 2003.

Journal Articles

JT-60 control system

Yonekawa, Izuru; Kawamata, Yoichi; Totsuka, Toshiyuki; Akasaka, Hiromi; Sueoka, Michiharu; Kurihara, Kenichi; Kimura, Toyoaki; JT-60U Team

Fusion Science and Technology (JT-60 Special Issue), 42(2-3), p.521 - 529, 2002/09

 Times Cited Count:5 Percentile:35.61(Nuclear Science & Technology)

The present status of JT-60 control system is reported including its original design concept, the progress of the system and various modifications since JT-60 upgrade. This control system has features of a functionally distributed and hierarchical structure, using CAMAC interfaces at the beginning, which are replaced to versatile module Europe (VME)-bus interfaces later, and a protective interlock system composed of both software and hard-wired interlock logics. Plant monitoring and control are performed by efficient data communication through CAMAC highways and Ethernet with TCP/IP protocols. Sequential control of a plasma discharges are executed by a combination of a remodeled VME-bus system and a timing system. At real-time plasma control system and a human interface system have been continuously modified corresponding to the progress of JT-60 experiments.

Journal Articles

Development of a new discharge control system for JT-60 with a UNIX workstation and a VME-bus system

Totsuka, Toshiyuki; Akasaka, Hiromi; Sueoka, Michiharu; Takano, Shoji*; Yonekawa, Izuru

Fusion Engineering and Design, 60(3), p.409 - 414, 2002/06

 Times Cited Count:2 Percentile:17.6(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Design of JRR-4 operation supporting system

Takahashi, Hiroki; ; Yamamoto, Kazuyoshi; Yoritsune, Tsutomu

JAERI-Conf 99-006, p.125 - 130, 1999/08

no abstracts in English

JAEA Reports

Parallel computation of a lattice-gas two-phase flow simulation code on a workstation cluster

Watanabe, Tadashi; Ebihara, Kenishi; Kato, Katsumi*

JAERI-Data/Code 99-029, 38 Pages, 1999/05

JAERI-Data-Code-99-029.pdf:1.58MB

no abstracts in English

JAEA Reports

Development of a new database system for JT-60 experiments utilizing UNIX workstations

Totsuka, Toshiyuki; Kurihara, Kenichi

JAERI-Tech 97-026, 47 Pages, 1997/06

JAERI-Tech-97-026.pdf:1.66MB

no abstracts in English

JAEA Reports

Development of a VME and CAMAC based data acquisition and transfer system for JT-60 control

Totsuka, Toshiyuki

JAERI-M 93-158, 36 Pages, 1993/08

JAERI-M-93-158.pdf:0.87MB

no abstracts in English

JAEA Reports

Speed up of MCACE, a Monte Carlo code for evaluation of shielding safety, by parallel computer, 3; Parallel computing by shared memory type parallel computer and by networked several workstations

; Onodera, Emi*; Masukawa, Fumihiro; Naito, Yoshitaka; Imawaka, Tsuneyuki*; Yoda, Yoshihisa*

JAERI-M 93-128, 50 Pages, 1993/07

JAERI-M-93-128.pdf:1.51MB

no abstracts in English

Journal Articles

Development of a man/machine interface system for the JT-60 upgrade

Yonekawa, Izuru; Shimono, Mitsugu; Totsuka, Toshiyuki; Yamagishi, Kojiro

Proc. of the 14th Symp. on Fusion Engineering,Vol. 2, p.798 - 801, 1992/00

no abstracts in English

Journal Articles

Development of intellectual reactor design system IRDS

; Nakakawa, Masayuki; Mori, Takamasa; Kugo, Teruhiko

Proc. of the Int. Conf. on Design and Safety of Advanced Nuclear Power Plants,Vol. 3, p.32.1_1 - 32.1_8, 1992/00

no abstracts in English

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