Preionization and start-up in the ISX-B tokamak using electron cyclotron heating at 28 GHz

Abstract

Articles you may be interested inStudy of plasma start-up initiated by second harmonic electron cyclotron resonance heating on WEGA experiment AIP Conf. Proc. 1580, 498 (2014); 10.1063/1.4864597 Calculation and measurement of initial electron densities in xray preionized avalanche discharge lasers J. Appl. Phys. 65, 4521 (1989); 10.1063/1.343248 FIR interferometer/polarimeter system on ISXB tokamak Rev. Sci. Instrum. 56, 911 (1985);

Electron cyclotron resonance breakdown studies in a linear plasma system

“…The filling gases used in these experiments are mainly hydrogen, helium and argon. Plasma delay time, τ delay , is observed experimentally in RTP (Rijnhuizen tokamak project) [10] and plasma e-folding time, τ e-fold is measured in ISX-B (impurity study experiment) [4]. τ delay gives the parameter space of operation while τ e-fold gives the particle confinement.…”

“…Electron cyclotron resonance (ECR) assisted pre-ionization is a common technique used in tokamaks [1][2][3][4][5][6][7][8][9][10][11][12], stellerators [13,14] and other plasma devices such as tokapole [15] for start-up and to assist plasma formation in the initial stage of the discharge. In ohmic discharge, high loop voltage is required to initiate the discharge when plasma density, temperature and conductivity are low and the line radiation from impurities are the dominating losses.…”

Model for movement of molten limiter material during the ISX-B beryllium limiter experiment

“…5 and Ref. [9]. This current flow, combined with the applied magnetic field, forces the protrusion tip radially inward.…”

On Microwave Heating to Kstar Tokamak

“…On the basis of the experimental work by Kulchar et al [5], a model was produced which was able to adequately describe the experiments in the ISX-B tokamak. Later experimental work included the large tokamak experiments in T-10 [6] and DIII-D [7].…”