Soft X-Ray CT Imaging of a Low-Aspect-Ratio Toroidal Plasma Maintained Solely by Electron Cyclotron Heating

Images of soft X-ray (SX) emission in a poloidal cross section have been reconstructed by computer tomography from 80 chord-integrated signals in total obtained in a low-aspect-ratio toroidal plasma produced and maintained solely by electron cyclotron (EC) heating on the LATE device. The SX images show the heating characteristics by electron Bernstein waves under the existence of multiharmonics of EC resonance in the low-aspect-ratio toroidal plasma.