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Diagnostic Studies for MAP-II Divertor Simulator and Heliotron J Helical System

par Caroline CHAMPENOIS - publié le


mercredi 16 septembre 2015 à 11:00, service 322 du campus Saint-Jérôme

Shinichiro Kado
Institute of Advanced Energy, Kyoto University, Japan

The lecturer has conducted the experimental study of the atomic and molecular processes being particularly relevant to the fusion edge/divertor plasmas. These researches had been making use of a MAP (material and plasma)-II steady-state linear divertor simulator at the University of Tokyo, which has recently been moved to University of Tsukuba.
Since 2013, he has moved to Kyoto University and has been involved in the Heliotron J experiments. This device has taken after the trend of the stellarator/heliotron configuration invented in 1950’s by L. Spitzer in Princeton and by K. Uo in Kyoto University independently.
The seminar thus consists of two parts :
1) Introductions to the heliotron J device, its history and some of the recent topics.
2) The topical results in MAP-II divertor simulator, in particular, development of diagnostics systems, Doppler-Stark spectroscopy, and Thomson Scattering for very low temperature detached recombining plasmas.

References :
<< Heliotoron J device >>
[1] Heliotron J development
[2] Effect of the field "bumpiness" :
[3] High Intensity Gus Puffing (HIGP) Experiment
[4] First beam emission spectroscopy (BES) for the non-symmetrical helical-magnetic-axis configuration

<< MAP-II device >>
[1] Review as of 2005
[2] Low-temperature Thomson Scattering :
[3] Doppler-Stark Spectroscopy

Contact local : Mohammed Koubiti


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