摘要
介绍了一种对等离子体边缘进行径向扫描的往复静电探针系统,该系统由高压气源、传输杆、光栅尺、探针组件构成。它在一次放电中能测量主等离子体边缘的温度、密度、悬浮电位、空间电位、离子饱和电流、极向电场、粒子通量等参数的径向分布以及电子温度和密度的衰减长度。测量结果表明,利用该系统测量的主等离子体边缘参数分布与JT-60U、TEXT、HT-7等装置上测量的结果一致。
Fast reciprocating probe system on the HL-2A tokamak is described in detail, which can radially scan the edge plasma within 8cm from outboard midplane. This system consists of the high pressure gas-source, transmission bar, digital grating displacement measurement system and probe head assembly. The plasma parameter profiles measured include electron temperature and density as well as their decay lengths, floating potential, space potential, saturation ion current and particle flux in a discharge with this system. These results are consistent with those from other tokamaks, such as JT-60U, TEXT, HT-7 and so on.
出处
《核聚变与等离子体物理》
EI
CAS
CSCD
北大核心
2007年第1期22-27,共6页
Nuclear Fusion and Plasma Physics
基金
国家自然科学基金资助项目(10235010)
