Dynamics of tearing modes during strong electron cyclotron heating on the FTU tokamak.
The localized electron cyclotron resonance heating power that can suppress sawteeth reconnection often drives m = 2 tearing modes in a tokamak operating at constant current. The dynamics of mode onset and coupled mode evolution is described in detail and compared with a nonlinear theoretical model that identifies the effects of mode coupling, finite inertia of the rotating islands, and wall braking.
Lazzaro
E
E
I.F.P.CNR, Assoc. EURATOM-ENEA-CNR, Via Cozzi 53, 20125 Milan, Italy.
Airoldi
A
A
Bruschi
A
A
Buratti
P
P
Cirant
S
S
Coelho
R
R
Granucci
G
G
Nowak
S
S
Ramponi
G
G
Simonetto
A
A
Sozzi
C
C
Tudisco
O
O
Bracco
G
G
Crisanti
F
F
Alladio
F
F
Angelini
B
B
Apicella
M L
ML
Apruzzese
G
G
Barbato
E
E
Bertalot
L
L
Bertocchi
A
A
Borra
M
M
Buceti
G
G
Cardinali
A
A
Cascino
S
S
Centioli
C
C