Multichannel electron cyclotron emission radiometry for magnetohydrodynamic mode studies in TEXTOR

被引：18
|
作者：
Waidmann, G
deVries, PC
KramerFlecken, A
Eulenberg, HP
Huxhagen, K
机构：
[1] FORSCHUNGSZENTRUM JULICH, FORSCHUNGSZENTRUM, ZENT LAB ELEKT, D-52425 JULICH, GERMANY
[2] MERCATOR UNIV DUISBURG, INST HOCHFREQUENZTECH, D-47048 DUISBURG, GERMANY
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 1997年 / 68卷 / 01期
关键词：
D O I：
10.1063/1.1147758
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Localized magnetohydrodynamic modes occur frequently as precursors to dangerous plasma disruptions in tokamaks. Fast electron cyclotron emission (ECE) radiometry permits a space-resolved study of the dynamic behavior of these instabilities. Two types of multichannel, heterodyne ECE systems working on TEXTOR are briefly described. Temperature profile perturbations caused by tearing modes are shown. Typical T-e fluctuations generated by rotating magnetic islands are presented. An early disruption warning system was built and tested on TEXTOR discharges. A real-time cross correlation calculation of two ECE signals is used to identify an m=2 mode. An analog alarm signal is generated then early during the instability evolution. An experimental test result is presented from a beam-heated tokamak plasma. (C) 1997 American Institute of Physics.
引用
收藏
页码：492 / 495
页数：4
相关论文
共 50 条
  • [1] Multichannel electron cyclotron emission radiometry in TJ-II stellarator
    de la Luna, E
    Sánchez, J
    Tribaldos, V
    Estrada, T
    REVIEW OF SCIENTIFIC INSTRUMENTS, 2001, 72 (01): : 379 - 382
  • [2] Electron cyclotron emission imaging diagnostic on TEXTOR
    Deng, BH
    Domier, CW
    Luhmann, NC
    Donné, AJH
    van de Pol, MJ
    REVIEW OF SCIENTIFIC INSTRUMENTS, 2001, 72 (01): : 368 - 370
  • [3] New electron cyclotron emission diagnostics for the TEXTOR tokamak
    van de Pol, MJ
    Udintsev, VS
    Donné, AJH
    Krämer-Flecken, A
    Deng, BH
    Domier, CW
    Luhmann, NC
    Park, HK
    Mazzucato, E
    FUSION ENGINEERING AND DESIGN, 2001, 53 (1-4) : 177 - 183
  • [4] Upgrades to the TEXTOR electron cyclotron emission imaging diagnostic
    Domier, C. W.
    Xia, Z. G.
    Zhang, P.
    Luhmann, N. C., Jr.
    Park, H. K.
    Mazzucato, E.
    de Pol, M. J. van
    Classen, I. G. J.
    Donne, A. J. H.
    Jaspers, R.
    REVIEW OF SCIENTIFIC INSTRUMENTS, 2006, 77 (10):
  • [5] Radiometry of electron cyclotron emission from fusion relevant plasmas
    Hartfuss, Hans J.
    Proceedings of the Winter Workshop, 1991,
  • [6] Broadband electron cyclotron emission radiometry for the Large Helical Device
    Kawahata, K
    Nagayama, Y
    Inagaki, S
    Ito, Y
    REVIEW OF SCIENTIFIC INSTRUMENTS, 2003, 74 (03): : 1449 - 1452
  • [7] Two-dimensional electron cyclotron emission imaging diagnostic for TEXTOR
    Wang, J
    Domier, CW
    Xia, ZG
    Liang, Y
    Luhmann, NC
    Park, H
    Munsat, T
    Mazzucato, E
    van de Pol, MJ
    Classen, IGJ
    Donné, AJH
    REVIEW OF SCIENTIFIC INSTRUMENTS, 2004, 75 (10): : 3875 - 3877
  • [8] Electron cyclotron emission correlation radiometry in toroidal plasma confinement devices
    Cima, G
    Bravenec, RV
    Watts, C
    FUSION ENGINEERING AND DESIGN, 1997, 34-35 : 511 - 514
  • [9] RESOLUTION OF ELECTRON CYCLOTRON EMISSION MEASUREMENTS OF MAGNETOHYDRODYNAMIC MODES IN ITER
    Austin, M. E.
    FUSION SCIENCE AND TECHNOLOGY, 2011, 59 (04) : 647 - 650
  • [10] Electron cyclotron resonance heating on TEXTOR
    Westerhof, E
    Hoekzema, IA
    Hogeweij, GMD
    Jaspers, RJE
    Schüller, FC
    Barth, CJ
    Bindslev, H
    Bongers, WA
    Donné, AJH
    Dumortier, P
    Van der Grift, AF
    Kalupin, D
    Koslowski, HR
    Krämer-Flecken, A
    Kruijt, OG
    Cardozo, NJL
    Van der Meiden, HJ
    Merkulov, A
    Messiaen, A
    Oosterbeek, JW
    Prins, PR
    Scholten, J
    Udintsev, VS
    Unterberg, B
    Vervier, M
    Van Wassenhove, G
    FUSION SCIENCE AND TECHNOLOGY, 2005, 47 (02) : 108 - 118
12345