ANALYSIS OF SAWTOOTH OSCILLATIONS USING SIMULTANEOUS MEASUREMENT OF ELECTRON-CYCLOTRON EMISSION IMAGING AND X-RAY TOMOGRAPHY ON TFTR

被引：51

作者：

NAGAYAMA, Y ^{[1
]}

MCGUIRE, KM ^{[1
]}

BITTER, M ^{[1
]}

CAVALLO, A ^{[1
]}

FREDRICKSON, ED ^{[1
]}

HILL, KW ^{[1
]}

HSUAN, H ^{[1
]}

JANOS, A ^{[1
]}

PARK, W ^{[1
]}

TAYLOR, G ^{[1
]}

YAMADA, M ^{[1
]}

机构：

[1] UNIV TOKYO,TOKYO 113,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.67.3527

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

High-resolution electron cyclotron emission and x-ray image reconstructions have been made simultaneously during the sawtooth crash in the fast rotating plasma with neutral beam injection heating on TFTR. The measured x-ray emission is identified as metal impurity radiation. The results suggest that the sawtooth crash is a full reconnection process for the TFTR sawteeth. The crescent-shaped ''hot spot'' in the x-ray emissivity is found not to represent flux surfaces. New features are observed during the sawtooth crash, such as an oval-shaped hot spot and a cooler region between the island and the hot spot.

引用

页码：3527 / 3530

页数：4

共 18 条

[11] TOMOGRAPHY OF M=1 MODE STRUCTURE IN TOKAMAK PLASMA USING LEAST-SQUARE-FITTING METHOD AND FOURIER-BESSEL EXPANSIONS [J].