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本文叙述新研制的以高纯度碘化汞晶体为基片的低噪声、高探测效率、高计数率、较高能量分辨率,常温状态下运行的HgI2半导体探测器的特点,以及特制的电荷灵敏前放和主放大器组成的探测系统对HL-1M托卡马克在欧姆加热、低杂波电流驱动、外加径向电场以及激光吹气掺杂等实验条件下,来自等离子体心部的硬X射线辐射进行测量,得到辐射强度和能谱随时间的变化等实验结果,并对实验结果作了初步的解释。
This paper describes the newly developed HgI2 semiconductor detector with low-noise, high detection efficiency, high counting rate, high energy resolution, and normal operation under high-temperature mercury iodide crystal as the substrate, as well as the special charge-sensitive Pre-amp and main amplifier detection system on the HL-1M tokamak ohmic heating, low clutter current drive, plus the radial electric field and laser blowing dopant and other experimental conditions, the hard core from the plasma X-ray Radiation measurements were made to obtain the radiation intensity and energy spectrum with the time of the experimental results, and the experimental results made a preliminary explanation.