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介绍用于HL-2A偏滤器托卡马克装置的远红外(FIR)激光干涉仪及其在等离子体电子密度测量中的应用.一种新的软件比较相位技术被用来计算相移.自恰式光路设计方法用于内壁挂镜光路的设计.防污染装置延长了真空室中反射镜的使用寿命.电子密度测量结果表明偏滤器位形的等离子体放电减小了等离子体与第一壁的相互作用,等离子体密度比孔栏放电位形的略为偏低.
A far-infrared (FIR) laser interferometer for the HL-2A divertor tokamak device and its application in plasma electron density measurement are introduced. A new software phase comparison technique is used to calculate the phase shift. The design of the optical path is used for the design of the optical path of the inner wall mirror.The anti-pollution device prolongs the service life of the reflector in the vacuum chamber.The results of electron density measurement show that the plasma discharge in the shape of the divertor reduces the interaction between the plasma and the first wall Interaction, plasma density than the aperture discharge profile slightly lower.