Applications of Incoherent Thomson Scattering Higher Spatial Resolution LIDAR Thomson Scattering at JET (小特集磁場閉じ込め高温プラズマにおけるレーザー応用プラズマ計測の最近の進展) -- (レーザートムソン散乱)

概要

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The LIDAR Thomson scattering has been used very successfully on the JET Tokamak to measure the evolution of profiles of electron temperature and density. Profiles with a spatial resolution of 〜12 cm have been obtained throughout virtually all JET plasmas since the diagnostic installation was completed in mid-1987. The repetition rate of the system was enhanced from 1/2 to 4 Hz in 1994 by installing a higher repetition rate ruby laser. In this paper we describe a new LIDAR system, built around the old laser, which exploits the principle of probing a sight line at an angle to the flux surfaces to gain higher effective spatial resolution, 2-3 cm, in the edge and divertor plasma.
社団法人プラズマ・核融合学会の論文
2000-09-25