scholarly journals Modelling of ICRF heating for JET T and D-T plasmas

2020 ◽  
Author(s):  
Keyword(s):  
Icrf Heating

ICRF HEATING IN TOKAMAKS

1977 ◽  
Vol 38 (C6) ◽  
pp. C6-171-C6-190 ◽  
Author(s):  
H. TAKAHASHI
Keyword(s):  
Icrf Heating

scholarly journals Physics basis for the ICRF system of the SPARC tokamak

2020 ◽  
Vol 86 (5) ◽  
Author(s):  
Y. Lin ◽  
J. C. Wright ◽  
S. J. Wukitch
Keyword(s):  
Alpha Particles ◽  
Fast Wave ◽  
Vacuum Vessel ◽  
Auxiliary Heating ◽  
Heating Method ◽  
Full Field ◽  
Single Pass ◽  
Wave Absorption ◽  
Port Design ◽  
Icrf Heating

Ion cyclotron range of frequencies (ICRF) heating will be the sole auxiliary heating method on SPARC for both full-field (Bt0 ~ 12 T) D–T operation and reduced field (Bt0 ~ 8 T) D–D operation. Using the fast wave at ~120 MHz, good wave penetration and strong single-pass absorption is expected for D–T(3He), D(3He), D(H) and 4He(H) heating scenarios. The dependences of wave absorption on ${k_\parallel }$ , 3He concentration, resonance location, antenna poloidal location and losses on alpha particles and ash have been studied. The antenna loading has been assessed by comparison with the Alcator C-Mod antennae. An antenna spectrum of ${k_\parallel }\sim 15\text{--}18\,{\textrm{m}^{ - 1}}$ is shown to be good for both core absorption and edge coupling. For the control of impurity sources, the antenna straps are rotated ~10° to be perpendicular to the B field and the straps can run with different power levels in order to optimize the antenna spectrum and to minimize the image current on the antenna frame. Combining the physics constraints with the SPARC port design, maintenance requirement and contingency against antenna failure during D–T operation, we plan to mount on the inner wall of the vacuum vessel a total of 12 4-strap antennae in 6 ports while keeping 3-strap antennae that are insertable and removable on port plugs as the backup option.

ICRF Heating and Plasma Acceleration with an Open Magnetic Field for the Advanced Space Thruster

2007 ◽  
Vol 51 (2T) ◽  
pp. 72-74 ◽  
Author(s):  
A. Ando ◽  
M. Inutake ◽  
K. Hattori ◽  
M. Shibata ◽  
Y. Kasashima
Keyword(s):  
Magnetic Field ◽  
Plasma Acceleration ◽  
Icrf Heating ◽  
Open Magnetic Field

Surface physics problems during ICRF heating of tokamak plasmas

1982 ◽  
Vol 20 (4) ◽  
pp. 1273-1278 ◽  
Author(s):  
D. Q. Hwang ◽  
G. Grotz ◽  
J. C. Hosea
Keyword(s):  
Tokamak Plasmas ◽  
Surface Physics ◽  
Icrf Heating ◽  
Physics Problems

Enhanced performance of high current discharges in JET produced by ICRF heating during the current rise

1989 ◽  
Vol 31 (12) ◽  
pp. 1843-1862
Author(s):  
M Bures ◽  
V Bhatnagar ◽  
J P Christiansen ◽  
G Cottrell ◽  
S Corti ◽  
...  
Keyword(s):  
High Current ◽  
Current Rise ◽  
Icrf Heating

Second harmonic ICRF heating experiments in Tore Supra

2009 ◽  
Author(s):  
R. J. Dumont ◽  
V. Basiuk ◽  
L.-G. Eriksson ◽  
Volodymyr Bobkov ◽  
Jean-Marie Noterdaeme ◽  
...  
Keyword(s):  
Second Harmonic ◽  
Icrf Heating
Sign in / Sign up

Export Citation Format

Share Document