The main components that comprised START included the support structure, pulse transformer, vacuum tank, toroidal and poloidal field coils, and a limiter.
12.
Where R is the major radius, r the minor radius, B _ p the poloidal field strength, and B _ t the toroidal field.
13.
OFCD is a scheme for driving a steady current in a relaxed plasma by adding sizable oscillating perturbations to the toroidal and poloidal fields injecting both power and helicity into the plasma.
14.
Since the plasma is an electrical conductor, it is possible to heat the plasma by inducing a current through it; in fact, the induced current that heats the plasma usually provides most of the poloidal field.
15.
The main difference between the two is that the spheromak contains poloidal ( vertical rings ) and toroidal ( horizontal ) magnetic fields, while the FRC has only the poloidal fields and requires an external magnet for confinement.
