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提出了利用ZnO压敏电阻设计一个高功率(0.4MW)短电流边界欧姆加热电源系统用于加热边界等离子体,促使欧姆约束状态改善的思想。该系统提供一个方向与等离子体 电流方向一致的涡旋电场(E_(EOH)=4.4V/m),给出了在HT-6M托卡马克上利用系统改善了约束的结果。其改善约束的明显特征是(a)密度N_0增加;(b)H_0辐射下降;(c)边界密度涨落和磁扰动下降;(d)边界密度和温度分布变陡。事实上,该系统可广泛应用于进一步研究MHD行为,粒子和能量输运等。
The idea of using ZnO varistor to design a high power (0.4MW) short current boundary ohmic heating power system for heating the boundary plasma and promoting the ohmic confinement is proposed. The system provides a vortex field (E_ (EOH) = 4.4 V / m) oriented in the same direction as the plasma current, giving the result of using the system to improve the constraint on the HT-6M tokamak. The obvious characteristics of the improved constraint are (a) an increase in density N_0; (b) a decrease in H_0 radiation; (c) a decrease in boundary density and magnetic disturbance; and (d) a sharp increase in boundary density and temperature distribution. In fact, the system can be used extensively to further study MHD behavior, particles and energy transport.