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首次用三道光纤探测器,伸入HL-1装置内真空室,采集活动石墨孔栏处等离子体光信号,用22m石英长光纤传输光信号至控制室进行观测。通过边界等离子体H_α和杂质辐射的时空分布,初步探讨了HL-1装置的脱离等离子体。
For the first time, a three-fiber optical detector was inserted into the vacuum chamber of the HL-1 device to collect the plasma optical signal at the active graphite hole column. The optical signal was transmitted to the control room through a 22m long quartz optical fiber for observation. Through the spatial and temporal distribution of the boundary plasma H_α and impurity radiation, the desorption plasma of the HL-1 device was preliminarily discussed.