TY - JOUR
T1 - Observation of heat flux and plasma flow in scrape off layer in QUEST
AU - Onchi, T.
AU - Mahira, Y.
AU - Nagaoka, K.
AU - Tashima, S.
AU - Banerjee, S.
AU - Mishra, K.
AU - Idei, H.
AU - Hanada, K.
AU - Nakamura, K.
AU - Fujisawa, A.
AU - Nagashima, Y.
AU - Hasegawa, M.
AU - Matsuoka, K.
AU - Kuzmin, A.
AU - Watanabe, O.
AU - Kawasaki, S.
AU - Nakashima, H.
AU - Higashijima, A.
N1 - Funding Information:
This work is supported by Grants-in-aid for Scientific Research ( S24226020 ), NIFS Collaboration Research Program ( NIFS12KUTR081 ), and the Collaborative Research Program of Research Institute for Applied Mechanics, Kyushu University .
Publisher Copyright:
© 2014 Elsevier B.V.
PY - 2015/7/22
Y1 - 2015/7/22
N2 - Abstract Thermal probe with double function of thermocouples and Langmuir probe has been developed, and the initial data observed in far-SOL in QUEST is obtained. Heat flux of megawatt per square meters related to energetic electrons and sonic plasma flow in far-SOL have been observed in the current rump-up phase although no high power inductive force like ohmic winding is applied. The heat flux and the flow are suppressed after the current is built up. In the quasi-steady state, plasma current starts and keeps sawtooth-like oscillation with 20 Hz frequency. The heat flux and the flow in far-SOL have clear responses to the oscillation.
AB - Abstract Thermal probe with double function of thermocouples and Langmuir probe has been developed, and the initial data observed in far-SOL in QUEST is obtained. Heat flux of megawatt per square meters related to energetic electrons and sonic plasma flow in far-SOL have been observed in the current rump-up phase although no high power inductive force like ohmic winding is applied. The heat flux and the flow are suppressed after the current is built up. In the quasi-steady state, plasma current starts and keeps sawtooth-like oscillation with 20 Hz frequency. The heat flux and the flow in far-SOL have clear responses to the oscillation.
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U2 - 10.1016/j.jnucmat.2014.11.136
DO - 10.1016/j.jnucmat.2014.11.136
M3 - Article
AN - SCOPUS:84937735468
SN - 0022-3115
VL - 463
SP - 428
EP - 431
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
M1 - 48807
ER -