TY - JOUR
T1 - Finite Larmor radius effects on Alfvén wave current drive in low-aspect ratio tokamaks
AU - Komoshvili, K.
AU - Cuperman, S.
AU - Bruma, C.
PY - 1998
Y1 - 1998
N2 - Alfvén wave current drive (AWCD) in low-aspect ratio (A = R/a = 1/ε ≳ 1) tokamaks (LARTs) is studied numerically. For this, the full-wave equation (E∥ ≠ 0) with a Vlasov-based dielectric tensor is solved by relaxation techniques, subject to appropriate boundary conditions at the plasma centre and at the plasma-vacuum interface, as well as the concentric antenna current sheet and at the external metallic wall. A systematic investigation of the physical characteristics of the AWCD generated in LARTs when kinetic effects are considered is carried out and illustrative results are presented and discussed.
AB - Alfvén wave current drive (AWCD) in low-aspect ratio (A = R/a = 1/ε ≳ 1) tokamaks (LARTs) is studied numerically. For this, the full-wave equation (E∥ ≠ 0) with a Vlasov-based dielectric tensor is solved by relaxation techniques, subject to appropriate boundary conditions at the plasma centre and at the plasma-vacuum interface, as well as the concentric antenna current sheet and at the external metallic wall. A systematic investigation of the physical characteristics of the AWCD generated in LARTs when kinetic effects are considered is carried out and illustrative results are presented and discussed.
UR - http://www.scopus.com/inward/record.url?scp=0031992134&partnerID=8YFLogxK
U2 - 10.1088/0741-3335/40/2/008
DO - 10.1088/0741-3335/40/2/008
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AN - SCOPUS:0031992134
SN - 0741-3335
VL - 40
SP - 271
EP - 281
JO - Plasma Physics and Controlled Fusion
JF - Plasma Physics and Controlled Fusion
IS - 2
ER -
