| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Neutron Flux Measurements in an ICRF Mode Conversion Regime Heating Plasmas on HT-7 |
| LI Xiao-Ling**, WAN Bao-Nian, ZHONG Guo-Qiang, HU Li-Qun, LIN Shi-Yao, ZHANG Xin-Jun, ZANG Qing
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Institute of Plasma Physic, Chinese Academy of Sciences, PO Box 1126, Hefei 230031
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| Cite this article: |
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LI Xiao-Ling, WAN Bao-Nian, ZHONG Guo-Qiang et al 2011 Chin. Phys. Lett. 28 105202 |
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Abstract Ion cyclotron resonance heating experiments using antenna in the high field side (HFS) have been carried out on HT-7 in different target plasmas. Unlike a standard-mode conversion heating scheme with dominant electron heating, anomalous ion heating and DD neutron fluxes higher than those estimated from thermal ions were observed in the present experiments with the ion-ion hybrid resonant layer near the center of plasma. The features of ion cyclotron range frequency (ICRF) antenna in HFS and experiments suggest that this is most probably due to the nonlinear 3/2 harmonic deuterium heating by the mode-converted ion Bernstein wave, which could produce a high energy tail on ion energy distribution.
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| Keywords:
52.70.Nc
52.35.Mw
52.50.Qt
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Received: 08 April 2011
Published: 28 September 2011
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| PACS: |
52.70.Nc
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(Particle measurements)
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52.35.Mw
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(Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))
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52.50.Qt
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(Plasma heating by radio-frequency fields; ICR, ICP, helicons)
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