论文部分内容阅读
对ＨＬ－１Ｍ装置在一次放电中注入３－８粒氢弹丸的欧姆加热等离子体密度分布和扰动特征进行了研究。实验表明，器壁再循环对高密度的获得有重要的影响。在再循环较高的条件下连续注入３粒１．０ｍｍ弹丸，获得了加料实验的最好参数：等离子体中心密度ｎｅ（０）＝５．３×１０１３ｃｍ－３，总体储能Ｗｐ＝６．０ｋＪ，τｅ＝２６ｍｓ。用ＣＣＤ相机拍摄了弹丸消融云的照片，并对消融过程进行了简要的分析。结果证实，消融的不对称和弹丸轨迹的偏转是电子侧消融强于离子侧的结果，弹丸发射间隙及完整性对密度扰动有重要的影响。
The ohmic heating plasma density distribution and perturbation characteristics of 3-8 hydrogen hydrogen pellets in one discharge of HL-1M device were studied. Experiments show that the wall recirculation has a significant impact on the high density. Under the condition of high recycle, 3 1.0mm pellets were continuously injected, and the best parameters of feed experiment were obtained: plasma center density ne (0) = 5.3 × 1013cm-3, total energy storage Wp = 6 .0kJ, τe = 26ms. Photographs of the projectile ablation cloud were taken with a CCD camera and the ablation process was briefly analyzed. The results show that asymmetry of ablation and deflection of projectile trajectory are the result of stronger ablation on the electron side than on the ion side. Projectile launch clearance and integrity have an important effect on density disturbance.