High-repetition CO2 laser for collective Thomson scattering diagnostic of α particles in burning plasmas

被引：5
|
作者：
Kondoh, T. [1 ]
Hayashi, T.
Kawano, Y.
Kusama, Y.
Sugie, T.
Miura, Y.
Koseki, R.
Kawahara, Y.
机构：
[1] Japan Atom Energy Agcy, Naka, Ibaraki 3110193, Japan
[2] Shibuya Kogyo Co Ltd, Kanazawa, Ishikawa 9200054, Japan
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2006年 / 77卷 / 10期
关键词：
JT-60U;
D O I：
10.1063/1.2222171
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A high-repetition and high-energy transversely excited atmospheric carbon dioxide (CO2) laser for a collective Thomson scattering (CTS) diagnostic has been developed to establish a diagnostic method of confined alpha particles in burning plasmas. To excite a single-transverse and single-longitudinal mode, a continuous wave seed laser was injected to an unstable resonator with a cavity length of similar to 4.4 m. Pulse energy of 10 J with a repetition rate of 10 Hz has been achieved in the single-mode operation. Pulse energies of 18 J with a repetition rate of 10 Hz and 36 J with single shot operation have also been achieved in the multimode operation. These results give a prospect for the CTS diagnostic on International Thermonuclear Experimental Reactor (ITER), which requires single-mode energy of 20 J with repetition rate of 40 Hz. (c) 2006 American Institute of Physics.
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页数：3
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