摘要
简要地介绍了在3.7K—4.5K 温度下连续提供制冷量的4.4K 闭循环制冷恒温器。对如何加快恒温器的降温速度和改善制冷性能进行了初步探讨,指出了 J—T 系统对G—M 制冷机冷量的有效利用率,给出了典型的实验数据和实验曲线,并且对实验结果进行了评述。
A 4.4K closed cycle cryostat which can provides refrigeration continuously in the range of 3.7K-4.5K is briefly described. Aa experimental investigation on how to shorten the cool down time of the cryostat and improve its performance has been done. The effective use of the refrigeration from G-M refrigerator for the J-T system is presented in the paper. A typical experimental data and curves are also given, and survey on the experimental results is finally conducted.
出处
《低温与超导》
CAS
CSCD
北大核心
1990年第3期9-12,共4页
Cryogenics and Superconductivity
