Controlling the profile of ion-cyclotron-resonant ions in JET with the wave-induced pinch effect.
Experiments on the JET tokamak show that the wave-induced pinch in the presence of toroidally asymmetric waves can provide a tool for controlling the profile of ion-cyclotron-resonant 3He ions. Direct evidence for the wave-induced pinch has been obtained from the measured gamma-ray emission profiles. Concurrent differences in the excitation of Alfvén eigenmodes (AEs), sawtooth stabilization, electron temperatures, and fast-ion stored energies are observed. The measured location of the AEs and gamma-ray emission profiles are consistent with the fast-ion radial gradient providing the drive for AEs.
Mantsinen
M J
MJ
Association Euratom-Tekes, Helsinki University of Technology, Finland.
Ingesson
L C
LC
Johnson
T
T
Kiptily
V G
VG
Mayoral
M-L
ML
Sharapov
S E
SE
Alper
B
B
Bertalot
L
L
Conroy
S
S
Eriksson
L-G
LG
Hellsten
T
T
Noterdaeme
J-M
JM
Popovichev
S
S
Righi
E
E
Tuccillo
A A
AA