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在环流器等离子体中用超声分子束流注入加料,引起密度峰化和约束改善,其主要机制归结为加料粒子的注入深化和密度上升率(注入效率)的提高。本文主要介绍经过改进的超声分子束流注入HL-1M装置等离子体利用边缘H_α。线辐射、径向可伸缩的静电探针和顺着束流注入方向的CCD摄像等诊断技术,考察了粒子注入口及注入口附近区域电子温度和密度沿径向分布的变化,研究了分子束粒子注入等离子体的所谓“冷通道模型”及其效应。
In the circulator plasma, ultrasonic molecular beam injection is used to inject the material, which leads to the density peaking and the improvement of the restraint. The main mechanism is attributed to the deepening of injection and the increase of density (injection efficiency). This article describes the improved ultrasonic molecular beam injection HL-1M device plasma edge H_α. Line radiation, radial telescopic electrostatic probes and CCD imaging along the direction of beam injection were used to investigate the radial distribution of electron temperature and density in the vicinity of the particle injection port and injection port. The effects of molecular beam particle The so-called “cold aisle model” for injecting plasma and its effects.