TY - JOUR
T1 - Progress on electron cyclotron heating and electron cyclotron current drive experiments in LHD
AU - Shimozuma, Takashi
AU - Kubo, Shin
AU - Yoshimura, Yasuo
AU - Igami, Hiroe
AU - Nagasaki, Kazunobu
AU - Notare, Takashi
AU - Inagaki, Sigeru
AU - Ito, Satoshi
AU - Kobayashi, Sakuji
AU - Mizuno, Yoshinori
AU - Takita, Yasuyuki
AU - Saito, Kenji
AU - Seki, Tetsuo
AU - Kumazawa, Ryuhei
AU - Watari, Tetsuo
AU - Mutoh, Takashi
PY - 2006/10
Y1 - 2006/10
N2 - The electron cyclotron resonance heating (ECH) system in the Large Helical Device consists of nine gyrotrons: two that are 82.7 GHz, 0.45 MW, and 2 s; two that are 84 GHz, 0.8 MW, and 3 s; one that is 84 GHz, 0.2 MW, and 1000 s; and four that are 168 GHz, 0.5 MW, and 1 s. ECH and electron cyclotron current drive (ECCD) experiments using this system have been conducted not only for plasma heating and current drive experiments but also for transport and power deposition studies with power modulation. The configuration of the recent ECH system including gyrotrons, high-voltage power supplies, and the transmission system is overviewed. The outstanding progress on the ECH/ECCD experimental results is described in detail, which includes an electron transport study in the plasma with an electron internal transport barrier, electron Bernstein wave heating through the mode conversion process, preliminary current drive experiments, and a steady-state plasma sustainment >1 h by only ECH.
AB - The electron cyclotron resonance heating (ECH) system in the Large Helical Device consists of nine gyrotrons: two that are 82.7 GHz, 0.45 MW, and 2 s; two that are 84 GHz, 0.8 MW, and 3 s; one that is 84 GHz, 0.2 MW, and 1000 s; and four that are 168 GHz, 0.5 MW, and 1 s. ECH and electron cyclotron current drive (ECCD) experiments using this system have been conducted not only for plasma heating and current drive experiments but also for transport and power deposition studies with power modulation. The configuration of the recent ECH system including gyrotrons, high-voltage power supplies, and the transmission system is overviewed. The outstanding progress on the ECH/ECCD experimental results is described in detail, which includes an electron transport study in the plasma with an electron internal transport barrier, electron Bernstein wave heating through the mode conversion process, preliminary current drive experiments, and a steady-state plasma sustainment >1 h by only ECH.
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U2 - 10.13182/FST06-A1262
DO - 10.13182/FST06-A1262
M3 - Article
AN - SCOPUS:33750377528
SN - 1536-1055
VL - 50
SP - 403
EP - 411
JO - Fusion Science and Technology
JF - Fusion Science and Technology
IS - 3
ER -