TY - JOUR
T1 - Ion Kinetic Effect on the Low-n Toroidal Modes in Compact Torus Plasmas
AU - Kawamori, Eiichirou
AU - Sumikawa, Takashi
AU - Igarashi, Takuro
AU - Ono, Yasushi
PY - 2004
Y1 - 2004
N2 - Ion kinetic effect on the low-n toroidal modes in Compact Torus (CT) plasmas such as Spherical Tokamak (ST), spheromak, Field-Reversed-Configuration and compact Reversed-Field-Pinch (RFP), was investigated by using different ion species. The experimental result that indicates ion kinetic stabilization of the low-n modes was obtained in the low q95 regime. It was clearly shown that the n=1 mode was stabilized in the FRC under the low S regime (S: averaged number of ion skin depth). The suppression of the n=2 mode activity in the low S RFP plasma was also observed. In the high q95(~ 4) ST regime, all low-n (1~4) toroidal modes were stable in the both cases of the high S and low S.
AB - Ion kinetic effect on the low-n toroidal modes in Compact Torus (CT) plasmas such as Spherical Tokamak (ST), spheromak, Field-Reversed-Configuration and compact Reversed-Field-Pinch (RFP), was investigated by using different ion species. The experimental result that indicates ion kinetic stabilization of the low-n modes was obtained in the low q95 regime. It was clearly shown that the n=1 mode was stabilized in the FRC under the low S regime (S: averaged number of ion skin depth). The suppression of the n=2 mode activity in the low S RFP plasma was also observed. In the high q95(~ 4) ST regime, all low-n (1~4) toroidal modes were stable in the both cases of the high S and low S.
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U2 - 10.1541/ieejfms.124.915
DO - 10.1541/ieejfms.124.915
M3 - Article
AN - SCOPUS:85024444972
SN - 0385-4205
VL - 124
SP - 915
EP - 920
JO - IEEJ Transactions on Fundamentals and Materials
JF - IEEJ Transactions on Fundamentals and Materials
IS - 10
ER -