Progress of Electron Cyclotron Heating/Current Drive Technology in JT-60U
نویسندگان
چکیده
منابع مشابه
Study of Ion Cyclotron Emissions due to DD Fusion Product Ions on JT-60U
In this paper, ion cyclotron emissions (ICEs) due to deuterium-deuterium (DD) fusion-product (FP) He, T and P-ions on JT-60U are described. Electromagnetic waves with finite toroidal wave numbers are detected by using ion cyclotron range of frequency antennas as pickup loops. The toroidal wave numbers are evaluated from the phase differences between two antenna straps arrayed in the toroidal di...
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An ECRF program has been started to study the local heating and current drive in JT-60U. The frequency of 110GHz was adopted to couple the fundamental O-mode from low field side with an oblique toroidal injection angle for current drive. Experiments were performed at the injection power of ~1.5 MW by using three gyrotrons, each of which has generated the output power up to ~0.8 MW for 3 seconds...
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The results of particle-in-cell simulations of a negative neutral beam heated Alfvén-mode experiment in the Japan Atomic Energy Research Institute Tokamak-60 Upgrade JT-60U H. Ninomiya et al., Fusion Sci. Technol. 42, 7 2002 ; A. Kitsunezaki et al., ibid. 42, 179 2002 are presented. They seem to match quite well the dynamics of the abrupt large-amplitude event ALE experimentally observed in the...
متن کاملModelling of JT-60U Detached Divertor Plasma using SONIC code
The characteristics of the JT-60U detached divertor plasma in the SONIC simulation are investigated. With increasing mid-plane density, the electron temperature at the divertor decreases and the ion flux to the divertor plate increases. At higher densities, the temperature becomes less than 1 eV. However, rollover of the ion flux at the divertor plate, which is a characteristic of the detachmen...
متن کاملLocalized Tungsten Deposition in Divertor Region in JT-60U
Deposition profiles of tungsten released from the outer divertor were studied in JT-60U. A neutron activation method was used for the first time to accurately measure deposited tungsten. Surface density of tungsten in the thick carbon deposition layer can be measured by this method. Tungsten was mainly deposited on the inner divertor (around inner strike points) and on the outer wing of the dom...
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ژورنال
عنوان ژورنال: Journal of Plasma and Fusion Research
سال: 2003
ISSN: 0918-7928
DOI: 10.1585/jspf.79.935