Multidirectional plasma flow measurement by Gundestrup Probe in scrape-off layer of ADITYA tokamak

被引：2
|
作者：
Sangwan, Deepak [1 ]
Jha, Ratneshwar [1 ]
Tanna, Rakesh L. [1 ]
机构：
[1] Inst Plasma Res, Gandhinagar 382428, Gujarat, India
来源：
PHYSICS OF PLASMAS | 2015年 / 22卷 / 11期
关键词：
STRONG MAGNETIC-FIELDS; ION COLLECTION; TRANSPORT; DIVERTOR; VELOCITY;
D O I：
10.1063/1.4935292
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Multidirectional plasma flow measurements by using Gundestrup Probe in the scrape-off layer of ADITYA tokamak are presented. The ADITYA Gundestrup Probe-head consists of eight plates arranged around the ceramic rod and three pins normal to side plates. Plates are used to measure both parallel and perpendicular flows simultaneously and pins are used to measure plasma density and floating potential. A comparison of direct perpendicular flow measurement and by two other plates of Gundestrup Probe is presented. Possible causes of perpendicular flows are identified and compared with the measured flows. It is observed that the mechanism of the parallel flow and the perpendicular flow is different only at high parallel Mach number. A puff of the working gas is used to study its effect on the perpendicular flows and its reversal with the gas puff is observed. (C) 2015 AIP Publishing LLC.
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页数：7
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