CCD在弹丸消融观测中的应用

CCD application on observation of pellet ablation

描述 CCD器件在 HL-1 M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α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 。

This paper describes the observed results of short-time pellet ablation based on CCD application during the multi-pellet fuelling experiment in the HL-1M tokamak, introduces a characteristic trigger mode, that is, Hα radiation signal emitting from pellet itself to trigger CCD camera. The experiment proves that a lot of photos can be taken through this arrangement and CCD camera is successfully applied to pellet ablation process investigation. Through photos processing and analysis, the structure on different 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 research in the field of military and engineering.