Plasma current measurement at JET using polarimetry-current sensor

被引：11

作者：

Leysen, W. ^{[1
]}

Gusarov, A. ^{[1
]}

Wuilpart, M. ^{[2
]}

Beaumont, P. ^{[3
]}

Boboc, A. ^{[3
]}

Croft, D. ^{[3
]}

Bekris, N. ^{[3
]}

Batistoni, P. ^{[3
]}

机构：

[1] SCK CEN Belgian Nucl Res Ctr, Boeretang 200, B-2400 Mol, Belgium

[2] Univ Mons, Electromagnetism & Telecommun Dept, Bd Dolez 31, B-7000 Mons, Belgium

[3] Culham Sci Ctr, JET, CCFE, Abingdon OX14 3DB, Oxon, England

来源：

FUSION ENGINEERING AND DESIGN | 2020年 / 160卷

关键词：

JET; ITER magnetic diagnostics; Plasma current measurements; Fibre optic current sensor; Faraday effect; Radiation effects; VERDET CONSTANT;

D O I：

10.1016/j.fusengdes.2020.111754

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The ITER Fibre Optic Current Sensor (FOCS) is a dc coupled current measurement system that will provide back-up ITER plasma current measurements using a sensing fibre located on the outer surface of the vacuum vessel. To address the impact of a harsh tokamak environment on the sensor performance we installed a FOCS system on JET and performed current measurements in various machine operating scenarios for currents up to 3 MA. Me have observed a good agreement between the FOCS and the reference Continuous External Rogowski (CER) coils data. The linearity of the FOCS response was demonstrated. The FOCS has performance characteristics compatible with the ITER requirements and in contrast to the CER is non-sensitive to magnetic crosstalk effects.

引用

页数：10

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