Measurement of Magnetic Island Width by Multi-Channel ECE Radiometer on HT-7 Tokamak

A 16-channel electron cyclotron emission （ECE） radiometer has been employed to observe the （m, n） = （2, 1） magnetic island structure on HT-7 tokamak, where m and n represent the poloidal and toroidal mode number respectively. The results indicate that the island width is about 7 cm when the magnetic...

Full description

Saved in:
Bibliographic Details
Published inPlasma science & technology Vol. 15; no. 3; pp. 217 - 220
Main Authors Han, Xiang, Ling, Bili, Gao, Xiang, Liu, Yong, Ti, Ang, Li, Erzhong, Xu, Liqing, Wang, Yumin
Format Journal Article
LanguageEnglish
Published 01.03.2013
Subjects
ECE
Emission
Fluctuation
HT-7托卡马克装置
Islands
Magnetic islands
Plotting
Radiometers
Shape
Tearing
Tokamak devices
多通道
宽度测量
新经典撕裂模
电子回旋辐射
磁岛
辐射计
Online AccessGet full text
ISSN1009-0630
DOI10.1088/1009-0630/15/3/05

Cover

More Information
Summary:A 16-channel electron cyclotron emission （ECE） radiometer has been employed to observe the （m, n） = （2, 1） magnetic island structure on HT-7 tokamak, where m and n represent the poloidal and toroidal mode number respectively. The results indicate that the island width is about 7 cm when the magnetic island is saturated during the m/n = 2/1 mode. The location of resonance surface can be determined by plotting the contour of ECE relative fluctuation. This method could be applied to the HT-7 and EAST campaigns in the future for the research of neoclassical tearing modes （NTMs）.
Bibliography:magnetic island width, ECE, fluctuation, HT-7 tokamak
A 16-channel electron cyclotron emission （ECE） radiometer has been employed to observe the （m, n） = （2, 1） magnetic island structure on HT-7 tokamak, where m and n represent the poloidal and toroidal mode number respectively. The results indicate that the island width is about 7 cm when the magnetic island is saturated during the m/n = 2/1 mode. The location of resonance surface can be determined by plotting the contour of ECE relative fluctuation. This method could be applied to the HT-7 and EAST campaigns in the future for the research of neoclassical tearing modes （NTMs）.
34-1187/TL
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1009-0630
DOI:10.1088/1009-0630/15/3/05