Compact high-resolution ion Doppler spectrometer for quartz ultraviolet line emissions

被引:13
作者
Gu, PM [1 ]
Nagata, M
McCollam, KJ
Jarboe, TR
Nelson, BA
Redd, AJ
机构
[1] Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA
[2] Univ Washington, Aerosp & Energet Res Prgram, Seattle, WA 98195 USA
[3] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA
[4] Himeji Inst Technol, Dept Elect Engn, Himeji, Hyogo 6712201, Japan
关键词
D O I
10.1063/1.1711157
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A high-resolution quartz ultraviolet spectrometer based on a single compact 16-channel multianode photomultiplier tube (MAPMT) has been developed and tested on coaxial helicity injection and ohmic transformer current drive plasmas generated on the Helicity Injected Torus at the University of Washington. The use of the compact MAPMT allows a simple design with high light collection and high resolution for an ion Doppler shift diagnostic. The high quality and low cost of the design make it uniquely attractive for university scale plasma experiments. The Doppler shift of impurity ion emission lines from two chords of equal impact parameter but of opposite rotational sense is used to determine chord-averaged toroidal flow velocity. The width of the Doppler broadening is used to calculate the ion temperature. A detailed description of the ion Doppler spectrometer measurement system and some typical results are presented. (C) 2004 American Institute of Physics.
引用
收藏
页码:1337 / 1340
页数:4
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