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

Volume

39

Issue

11

fYear

2011

Firstpage

2480

Lastpage

2481

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;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2011.2158667

Filename

5910406