Estimation of Power Balance in Steady State LHCD Discharges on TRIAM-1M
Tomoya Sugata, K. Hanada, N. Imamura, M. Sakamoto, H. Zushi, H. Idei, A. Iyomasa, S. Kawasaki, K. Sato, H. Nakashima, K. Nakamura, M. Hasegawa, A. Higashijima
Abstract
On TRIAM-1M, a long duration discharge for more than 5 h was achieved successfully by fully non-inductive lower hybrid current drive. Heat load distribution to the plasma facing components (PFCs) in the 5 h discharge was investigated by using calorimetric measurements. The injected RF power was coincident with the total amount of heat load to PFCs estimated by calorimetric measurement. The power balance including the portion of direct loss power of fast electron, heat flux due to the charge exchange process was able to be estimated in this long duration discharge.
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