Optimization of Ohmic Heating Coil Configurations in an AirCore Tokamak
Abstract
A simplified computer program for the calculation of the magnetic fields generated by currents in the ohmic heating coils connected in parallel in an aircore tokamak is presented. The program employs equations determining the coil current distributions, the zcomponent of the magnetic field generated by coils equivalent to a toroidal magnetic shell and the objective function of the magnetic field. Values of the objective function of the magnetic field ranging from 0.0112 for 10 coils to 0.000172 for 36 coils have been obtained by the program, and it is concluded that the present method, which requires about 0.1 min of computer time, can be easily used to reduce leakage fields in the plasma region without the use of optimization techniques such as mathematical programming.
 Publication:

Japanese Journal of Applied Physics
 Pub Date:
 November 1979
 DOI:
 10.1143/JJAP.18.2161
 Bibcode:
 1979JaJAP..18.2161K
 Keywords:

 Computer Programs;
 Magnetic Coils;
 Magnetic Field Configurations;
 Ohmic Dissipation;
 Tokamak Devices;
 Current Distribution;
 Magnetic Cores;
 Plasma Control;
 Toroidal Shells;
 Plasma Physics