锂束注入法测量磁约束装置PMF的光探测实验设计

Experimental Designing to Measure the PMF of Magnet-confining Device by Lithuim Injecting

极向磁场(poloidal magnetic field)的大小是磁约束装置的主要参数之一.中性锂束注入磁约束装置后,受碰撞激发而发出的共振谱线在磁场中分裂,其中波长不变的谱线分量的偏振方向平行于磁场方向.本文详细分析中性束注入法的物理过程,给出了完整的光探测实验设计,计算并讨论了实验中主要仪器——法布里-珀罗干涉仪、法拉第旋转器和渥拉斯顿棱镜的性能指标和参数选择.

Poloidal magnetic field (PMF) is one of the key roles of magnet-confining device. A new method was suggested for measuring PMF by injecting Lithium beam into the device, the measuring scheme and the physical principle of the method were particularly analyzed. The full optical detect experiment was throughout designed. The specifications for main experimental instruments, such as Fabry- Perot interferometer, Faraday Rotator, Wollaston Prism, were also accounted and discussed.