TY - JOUR
T1 - Development of a plasma control system for steady-state operation on QUEST
AU - Hasegwa, Makoto
AU - Nakamura, Kazuo
AU - Zushi, Hideki
AU - Hanada, Kazuaki
AU - Fujisawa, Akihide
AU - Matsuoka, Keisuke
AU - Idei, Hiroshi
AU - Nagashima, Yoshihiko
AU - Tokunaga, Kazutoshi
AU - Kawasaki, Shoji
AU - Nakashima, Hisatoshi
AU - Higashijima, Aki
N1 - Funding Information:
The present study was supported by and conducted as part of the National Institute for Fusion Science (NIFS) collaboration research program (NIFS11KUTR073), JSPS KAKENHI Grant Number 24760699, and JSPS A3 Foresight Program “Innovative Tokamak Plasma Startup and Current Drive in Spherical Torus.”
Publisher Copyright:
© 2014, The Korean Physical Society.
Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2014
Y1 - 2014
N2 - A drift error correction technique with machine vision and a real-time equilibrium calculation code have been developed on the QUEST (Q-shu university experiment with the steady-state spherical tokamak) for steady-state operation. The drift error caused by the long time-integration of magnetic raw signals has to be removed. With a captured image of the plasma’s cross section, the plasma’s position is identified by use of image filters. The measured magnetic flux values are corrected to the calculated flux values estimated by using this plasma position. The correction with the captured image work as expected in the preliminary result using a flashlight instead of a plasma.
AB - A drift error correction technique with machine vision and a real-time equilibrium calculation code have been developed on the QUEST (Q-shu university experiment with the steady-state spherical tokamak) for steady-state operation. The drift error caused by the long time-integration of magnetic raw signals has to be removed. With a captured image of the plasma’s cross section, the plasma’s position is identified by use of image filters. The measured magnetic flux values are corrected to the calculated flux values estimated by using this plasma position. The correction with the captured image work as expected in the preliminary result using a flashlight instead of a plasma.
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U2 - 10.3938/jkps.65.1191
DO - 10.3938/jkps.65.1191
M3 - Article
AN - SCOPUS:84920181400
SN - 0374-4884
VL - 65
SP - 1191
EP - 1195
JO - Journal of the Korean Physical Society
JF - Journal of the Korean Physical Society
IS - 8
ER -