COMPARISON OF THE CREATE-L PLASMA RESPONSE MODEL WITH TCV LIMITED DISCHARGES

Experiments have been performed on the TCV tokamak to evaluate the res ponse of ohmic, L mode, limited, vertically unstable plasmas to change s in all the poloidal field coil voltages. The resulting closed loop p lasma responses have been compared with the CREATE-L linearized MHD eq uilibrium model of the TCV tokamak. All the responses in both the time domain and the frequency domain show excellent agreement both for dir ectly measured quantities and for derived parameters. No modifications to the CREATE-L model were made to achieve this quality of agreement, indicating that the underlying physical assumptions are appropriate.