<RESEARCH REPORT>Theory of High Power Cyclotron Resonance Heating in Non-Uniform Magnetic Field
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概要
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Energy absorption of a plasma due to cyclotron harmonic resonance is evaluated analytically and by a simulation. In the calculation an orbit modification of the cyclotron motion of particles is fully taken into account. It is found that the absorption for the fundamental harmonic resonance (m=1) is depressed from that of the conventional linear approximation while the absorptions for m≧2 are enhanced, where m is the harmonic number. The enhancement is significant when kp_t≪1 (k the perpendicular wave number and p_t the gyroradius of a thermal particle) and when the interaction time between the plasma particles and the wave exceeds a critical value that is obtainable analytically. For all m and kp_t, there appear peaks or saturations in the absorption. The second harmonic ion cyclotron resonance heating experiment in Princeton Large Tokamak is discussed in terms of this theory.
- 核融合科学研究所の論文
著者
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Sugihara Ryo
Research Information Center, Institute of Plasma Physics, Nagoya University
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Sugihara Ryo
Research Information Center Institute Of Plasma Physics Nagoya University
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Ogawa Yuichi
Research Information Center Institute Of Plasma Physics Nagoya University
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