A Fast Exhaust-Gas Analyzer for the ITER Divertor

被引：0

作者：

Klepper, C. Christopher ^{[1
]}

Carlson, Eric P. ^{[1
]}

Moschella, John J. ^{[1
]}

Hazelton, Robert C. ^{[1
]}

Keitz, Michael D. ^{[1
]}

机构：

[1] HY Tech Res Corp, Radford, VA 24141 USA

来源：

2009 23RD IEEE/NPSS SYMPOSIUM ON FUSION ENGINEERING | 2009年

关键词：

ITER; divertor; residual gas analysis; helium exhaust; helium removal; TRITIUM CONCENTRATION MEASUREMENTS; PENNING GAUGE;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a first demonstration of an rf-excited optical gas analyzer (RF-OGA) designed to quantitatively measure minority species inside the neutralization region of the ITER divertor. The sensor head, which creates its own plasma excitation and plasma light emission, is designed to operate in a strong magnetic field and the rf coupling leads to strong light emission. It also allows for operation at low voltages, avoiding radiation-enhanced breakdowns expected when high voltages are present in the ITER environment. Furthermore, the preferred sensor head features full isolation of the metal rf electrodes from the induced plasma. This "electrodeless" operation will permit long operation without frequent maintenance. First tests of the RF-OGA in a strong (similar to 2T) magnetic field show a mostly linear response of the HeI-6678 angstrom line emission to the He concentration that would produce a He measurement error of +/- 2%.

引用

页码：213 / 216

页数：4

共 5 条

[1] MEASUREMENT OF HELIUM GAS IN A DEUTERIUM ENVIRONMENT [J].