Atomic beam diagnostics for characterization of edge plasma in TJ-II stellarator

被引：39

作者：

Brañas, B ^{[1
]}

Tafalla, D ^{[1
]}

Tabarés, FL ^{[1
]}

Ortiz, P ^{[1
]}

机构：

[1] EURATOM, CIEMAT, Lab Nacl Fus Confinamiento Magnet, Madrid, Spain

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2001年 / 72卷 / 01期

关键词：

D O I：

10.1063/1.1319868

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

He and Li beams have been installed and set into operation at the TJ-II stellarator with the aim of measuring electron temperature and density profiles in the edge and scrape-off layer regions of the plasma. The effusive thermal Li beam penetrates up to a normalized effective radius of rho = 0.6-0.7 in typical electron cyclotron heated plasmas. Density profiles deduced from the Li beam are wider than those obtained from extrapolation of the profile measured by Thomson scattering. The He beam is a pulsed supersonic one. Simultaneous detection of three emission lines (667.2, 706.5, and 728.1 nm) is made with a set of three photomultipliers. First He beam measurements of n(e) and T-e in TJ-II are presented and the agreement among results of different plasma edge diagnostics is discussed. (C) 2001 American Institute of Physics.

引用

页码：602 / 606

页数：5

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