摘要
快速扫描气动探针已在HL-2A装置上用于对边缘等离子体参数的径向分布的测量,特别是刮离层等离子体参数的特征长度和扰动的测量。该系统采用精密的气动气缸驱动带有探针组件的长驱动杆,其最快速度可在60 ms时间内水平扫描8 cm的距离。探针信号测量具有1MHz的快速时间响应和0.04 mm的空间分辨率。可靠地测量了HL-2A装置边缘电子温度和密度的时空分布。
A fast-scanning probe system has been installed in the HL-2A tokamak and is used to measure the edge and scrape-off layer （SOL） plasma parameter profiles, especially the characteristic length and fluctuations of local plasma parameters. The system has a compact pneumatic cylinder and the pneumatic cylinder can drive a long drive shaft with the probe array. The system can scan a horizontal distance of 8 cm in 60 ms. The SOL and edge plasma parameter profiles with spatial resolution 0.04 mm have been obtained with a digital grating displacement measurement system.
出处
《核聚变与等离子体物理》
EI
CAS
CSCD
北大核心
2005年第4期241-245,共5页
Nuclear Fusion and Plasma Physics
关键词
快速扫描气动系统
数据光栅位移系统
气动汽缸
A fast-scanning system
Digital grating displacement system
Pneumatic cylinder
