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Saigusa, Mikio*; Kanazawa, Sadayoshi*; Ogawa, Toshihide; Kawashima, Hisato; Kikuchi, Kazuo; Ido, Takeshi*; Fukuyama, Atsushi*
Nuclear Fusion, 42(4), p.412 - 417, 2002/04
Times Cited Count：2 Percentile：6.81(Physics, Fluids & Plasmas)A new diagnostic method is proposed for direct measurements of electromagnetic field patterns of fast waves in toroidal plasmas. The fluctuation of ponderomotive potential at a beat wave frequency between the two frequency fast waves produces the actual potential fluctuation via electron and ion motions. A heavy ion beam probe (HIBP) detected the potential fluctuation patterns at a beat wave frequency during the fast wave pulse. The amplitude of potential fluctuations decreases with increasing an electron temperature in fast wave current drive (FWCD) experiments of JFT-2M, due to the improvement of wave absorption via electron Landau damping. The measured potential fluctuation does not contradict with the prediction using a full wave code calculations.
; *; Ara, Katsuyuki
MAG-96-73, 0, p.73 - 82, 1996/00
no abstracts in English
Ara, Katsuyuki; ;
Dai-4-Kai MAGDA-Konfarensu in Tottori Koen Rombunshu; Denji Gensho Oyobi Denjiryoku Ni Kansuru Konfarensu, 0, p.79 - 82, 1995/00
no abstracts in English
Sakasai, Kaoru; Ara, Katsuyuki
MAG-90-177, p.103 - 112, 1990/11
no abstracts in English
*; *; ;
IEEE Transactions on Plasma Science, 14(6), p.947 - 954, 1986/06
Times Cited Count：22 Percentile：62.66(Physics, Fluids & Plasmas)no abstracts in English
