CCD在弹丸消融观测的应用

 描述CCD器件在HL-1M多发弹丸加料实验中观测短暂消融云的应用结果，并介绍一种有特色的触发方式 用弹丸自身辐射的氢a 射线启动相机。实验证明：这种安排能取得大量照片，CCD成功地应用于弹丸消融过程观测, 图片处理分析后获得消融云形状、结构和辐射强度分布等。可以相信CCD诊断方法不但加深了弹丸加料的认识，也会促进军事工程相关瞬态高速过程的研究。

CCD application on observation of pellet ablation

This paper describes the observe d results of short time pellet ablation based on CCD application during the mu lti pellet fuelling experiment in the HL 1M tokamak,introduces a characterist ic trigger mode,that is,Hα radiation signal emitting from pellet itself to tr igger CCD camera.The experiment proves that a lot of photos can be taken throug h this arrangement and CCD camera is successfully applied to pellet ablation pro cess investigation.Through photos processing and analysis,the structure on dif ferent plasma positions,dimension and space emission profile of ablation cloud are obtained,therefore the CCD diagnosis means not only makes pellet fuelling understand deeply,but also may promote the transient and high speed process re search in the field of military and engineering.