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主要介绍HL 1M托卡马克装置三种加料方式所得的密度特性结果。用弹丸注入 (PI) ,超声分子束注入 (SMBI)和常规脉冲送气 (GP)获得等离子体电子密度Ne分别为 5 3× 10 19m 3,8× 10 19m- 3和 7× 10 19m- 3。前者获得的能量约束时间τe却比后者高 30 %以上。比较了不同再循环条件下各种加料实验的结果 ,由密度演变、H信号和软X射线 (SX)信号的时空变化显示三种加料方式粒子沉积区域不同。进一步分析表明 :能量约束的改善与燃料粒子沉积区域密切相关
Mainly introduces HL 1M tokamak device three kinds of feeding method of density characteristics of the results obtained. Plasma electron densities Ne were 53 × 10 19 m 3, 8 × 10 19 m -3, and 7 × 10 19 m -3, respectively, using projectile injection (PI), ultrasonic molecular beam injection (SMBI) and conventional pulsed gas supply (GP). The former obtains the energy constraint time τe is higher than the latter more than 30%. The results of different feeding experiments under different recirculation conditions were compared. The spatial and temporal variations of density evolution, H signal and soft X-ray (SX) signal showed that the particle deposition areas of the three feeding methods were different. Further analysis shows that the improvement of energy constraint is closely related to the deposition area of fuel particles