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本文叙述了用三探头Ｓｉ（Ｌｉ）漂移探测器测量ＨＬ－１Ｍ托卡马克芯部等离子体辐射的软Ｘ射线能谱，得到等离子体温度及重金属杂质水平随时间变化，其时间分辨达５０ｍｓ，探测系统的测量范围１．２５～２５ｋｅＶ之间。
In this paper, the soft X-ray energy spectrum of the plasma of the HL-1M tokamak core is measured by a three-probe Si (Li) drift detector. The plasma temperature and the level of heavy metal impurities change with time, Detection system measuring range 1.25 ~ 25keV between.