Analysis of Noninductive Current Drive from Eccd and Bootstrap on T-10

The combination of electron cyclotron current drive and the bootstrap effect has produced completely non‐inductively driven current of 75 kA for up to 200 msec in the T‐10 tokamak. At higher values of plasma current Ip∼175 kA, Ip≥60 kA was maintained by ECCD. These experiments have been modeled with the coupled ray training and transport codes TORAY and ONETWO. Within the uncertainties in the experimental data, the calculations show that the sum of bootstrap and ECCD substantially exceeded the net programmed plasma current.