Title :
Soft X-Ray Computer Tomography of Tokamak Plasma in Control Experiment of Locked-Mode Disruption by Electron Cyclotron Heating
Author :
Yoshimura, Satoru ; Maekawa, Takashi
Author_Institution :
Grad. Sch. of Eng., Osaka Univ., Suita, Japan
Abstract :
A locked-mode disruption is artificially induced by lower hybrid current drive on a tokamak. By applying electron cyclotron heating (ECH), the disruption can be avoided. The time evolution of plasma internal structure during ECH is investigated with soft X-ray computer tomography. We have found that the mode locking and the growth of m = 1 and m = 2 modes are suppressed during ECH.
Keywords :
Tokamak devices; computerised tomography; plasma radiofrequency heating; plasma toroidal confinement; plasma transport processes; electron cyclotron heating; locked-mode disruption; lower hybrid current drive; plasma internal structure; soft X-Ray computer tomography; tokamak plasma; Computers; Detectors; Heating; Laser mode locking; Magnetohydrodynamics; Tokamaks; Electron cyclotron heating (ECH); locked-mode disruption; soft X-ray (SXR) computer tomography (CT); tokamak;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2131685
