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利用多道可见光谱探测系统和近紫外转镜系统测量了HT 6M托卡马克等离子体中杂质的时空分布 .建立完备的杂质输运程序 ,数值模拟碳、氧杂质在欧姆放电时的输运行为 ,得出了杂质的扩散和对流系数、不同电离态杂质离子密度、辐射功率密度和有效电荷数的空间分布 .分析低混杂波电流驱动 (LHCD)期间杂质行为 ,结果表明等离子体粒子约束、杂质约束和能量约束提高 ,辐射功率和有效电荷数减小 .
The spatial and temporal distribution of impurities in the HT 6M tokamak plasma was measured by using a multi-channel visible spectroscopy system and a near-ultraviolet mirror system. A complete impurity transport program was established to simulate the transport behavior of carbon and oxygen impurities during the ohmic discharge , The spatial distribution of impurity diffusivity and convection coefficient, different ionic ion density, radiant power density and effective charge number were obtained.The impurity behavior during low hybrid current drive (LHCD) was analyzed.The results showed that plasma particle confinement, impurity Constraints and energy constraints increase, radiation power and effective charge decreases.