JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{takahashi:icalepcs1991-s12fc08,
author = {M. Takahashi and H. Akasaka and Y. Kawamata and T. Kimura and K. Kurihara},
title = {{Development of a VME Multi-Processor System for Plasma Control at the JT-60 Upgrade}},
% booktitle = {Proc. ICALEPCS'91},
booktitle = {Proc. 3rd Int. Conf. Accel. Large Exp. Phys. Control Syst. (ICALEPCS'91)},
eventdate = {1991-11-11/1991-11-15},
pages = {438--441},
paper = {S12FC08},
language = {english},
keywords = {controls, plasma, power-supply, operation, feedback},
venue = {Tsukuba, Japan},
series = {International Conference on Accelerator and Large Experimental Physics Control Systems},
number = {3},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {12},
year = {1992},
issn = {2226-0358},
isbn = {978-3-95450-254-7},
doi = {10.18429/JACoW-ICALEPCS1991-S12FC08},
url = {https://jacow.org/icalepcs1991/papers/s12fc08.pdf},
abstract = {{Design and initial operation results are reported of a VME multi-processor system for plasma control at a large fusion device named "the JT-60 Upgrade" utilizing three 32-bit MC88100 based RISC computers and VME components. Development of the system was stimulated by faster and more accurate computation requirements for the plasma position and current control. The RISC computers operate at 25 MHz along with two cache memories named MC88200. We newly developed VME bus modules of up/down counter, analog-to-digital converter and clock pulse generator for measuring magnetic field and coil current and for synchronizing the processing in the three RISCs and direct digital controllers (DDCs) of magnet power supplies. We also evaluated that the speed of the data transfer between the VME bus system and the DDCs through CAMAC highways satisfies the above requirements. In the initial operation of the JT-60 upgrade, it has been proved that the VME multi-processor system well controls the plasma position and current with a sampling period of 250 ¿sec and a delay of 500 ¿sec.}},
}