| Plasma equilibrium calculation is a basic issue for tokamak research, which is not only provides references for device design, but also provides information for the evaluation of plasma performance and plays very important role in the tokamak operation.EFIT code was used to solve Grad-Shafranov equation which describes the plasma equilibrium of tokamak. EAST magnetic diagnostic was implemented in the EFIT and it was used for the EAST plasma equilibrium reconstruction.Based on MATLAB and EFIT on Linux, EAST easy-use equilibrium reconstruction system has been developed. Discharge data acquisition, plasma equilibrium reconstruction and equilibrium shape visualization were achieved all-in-one. Typical EAST plasma discharge magnetic configuration were reconstructed which showed good accuracy and good agreement with the plasma CCD image. |
