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Ion Temperature Measurement in the RF Heated Plasma

Won Ha Ko, Hoon Kyun Na, Seong-Heon Seo, Myeun Kwon (19P30)

Fusion Science and Technology / Volume 51 / Number 2T / Pages 295-297

February 2007

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The ion temperature, rotation velocity, and impurity density can be obtained from CHarge Exchange Recombination Spectroscopy (CHERS) diagnostics, one of active beam diagnostics, using NBI or DNB.

We measure the charge exchange emission line of the carbon using CHERS and DNB system and analyze the ion temperature from the emission line in the RF heated HANBIT plasma. DNB system which has 27 kV beam voltage and 50 msec pulse width must be controlled critically to measure the exact ion temperature in the experiments.

End loss ion temperature measured using energy analyzer is compared with the ion temperature obtained from the charge exchange emission line. The CHERS diagnostics has been widely used to measure ion temperature and poloidal rotation velocity in tokamak.

 
 
 
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