论文部分内容阅读
送气成像(gas puffimaging,GPI)是一种重要的研究边缘辐射诊断手段.分析了送气(gas puffing,GP)的原子分子过程,指出气体辐射的主要成分是Hα线,出现在边缘区域,并给出其强度和位置的表达式.介绍HL-2A托卡马克上GPI成像系统的改进和实验布置.从成像的角度获得了GP实验中氢气在等离子体空间的辐射图形,观察结果证实上述分析.在放电开始阶段,氢原子可以穿越待建立的完全等离子体区并形成长条形的辐射亮区.一般的GP加料中,CCD图片与控制信号,以及其他诊断结果相符合.在等离子体边缘区域强场侧(HFS)和弱场侧(LFS)都观察到很强的Hα线辐射.
Gas puffimaging (GPI) is an important diagnostic tool for the study of edge radiation.Analysis of the atomic molecular process of gas puffing (GP) indicates that the main component of gas radiation is the Hα line which appears in the edge region and gives The expression of its intensity and position is introduced.The improvement and experimental arrangement of the GPI imaging system on HL-2A tokamak is introduced.The radiation pattern of hydrogen in plasma space in GP experiment is obtained from the imaging point of view, and the observation confirms the above analysis. At the beginning of the discharge, the hydrogen atoms can traverse the complete plasma region to be created and form a strip of radiant bright areas. In a typical GP charge, the CCD images are in agreement with control signals and other diagnoses.At the edge of the plasma Strong Hα radiation was observed at both HFS and LFS.