Title :
Soft X-Ray CT Imaging of a Low-Aspect-Ratio Toroidal Plasma Maintained Solely by Electron Cyclotron Heating
Author :
Tanaka, Hitoshi ; Takeuchi, Tetsuro ; Uchida, Masaki ; Maekawa, Takashi
Author_Institution :
Grad. Sch. of Energy Sci., Kyoto Univ., Kyoto, Japan
Abstract :
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.
Keywords :
plasma Bernstein waves; plasma X-ray sources; plasma devices; plasma diagnostics; plasma production; plasma radiofrequency heating; LATE device; computer tomography; electron Bernstein waves; electron cyclotron heating process; low-aspect-ratio toroidal plasma production; plasma heating characteristics; poloidal cross section; soft X-ray CT imaging; soft X-ray emission image; Cameras; Cyclotrons; Harmonic analysis; Heating; Image reconstruction; Plasmas; X-ray imaging; Computer tomography (CT); electron cyclotron heating; plasma generation; spherical tokamak;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2158667
