近十几年来,半导体锗(锂)[Ge(Li)]探测器在核物理实验等各方面得到了广泛应用。而这种探测器必须在低温下工作和贮存,因此需要一种专门的能长期保持低温的装置。我们坚持独立自主,自力更生的方针,组成以工人为主体的工人、科技人员、干部三结合小组,实行设计、试制、使用单位三结合,经 In recent ten years, the semiconductor germanium (Li) [Ge (Li)] detector has been widely used in nuclear physics experiments and other aspects. However, such detectors must be operated and stored at low temperatures, and therefore require a dedicated device that will maintain low temperatures over the long term. We adhere to the principle of independence and self-reliance and form a three-pronged group of workers, scientific and technical personnel and cadres with workers as the main body. We implement the combination of design, trial production and the use of units.