A Cryogen-Free Miniature Dilution Refrigerator for Low-Temperature Detector Applications
A Cryogen-Free Miniature Dilution Refrigerator for Low-Temperature Detector Applications
复制标题
适用于低温探测器应用的无制冷剂微型稀释制冷机
DOI：
10.1007/s10909-008-9724-7
复制
发表时间：
2008
影响因子：
2
通讯作者：
L. Piccirillo
中科院分区：
文献类型：
--
作者：
G. Teleberg;S. Chase;L. Piccirillo
我们描述了一个微型稀释冰箱，适合于许多检测器的应用温度下降到50 mK。与传统系统不同，3He气体在内部循环，无需任何室温泵和气体处理系统。不需要精细的毛细管、移动部件或冷却O形环，这使得系统在机械上非常可靠，并最大限度地降低了热循环期间发生堵塞或低温泄漏的风险。我们已经将稀释制冷机与脉冲管冷却器集成在一起，以创建一个无冷冻剂的按钮系统，该系统目前正用于TES探测器的开发。温度低于50 mK，在100 mK时冷却功率为几微瓦，可持续15小时以上，再循环周期约为4小时。
We describe a miniature dilution refrigerator, suitable for many detector applications at temperatures down to 50 mK. Unlike conventional systems, the 3He gas is recycled internally which eliminates the need for any room-temperature pumps and gas handling system. No fine capillaries, moving parts or cooled O-rings are required which makes the system mechanically very reliable and minimizes the risk of developing blockages or cryogenic leaks during thermal cycles. We have integrated our dilution refrigerator with a pulse-tube cooler to create a cryogen-free, push button system which is now being used for TES detector developments. Temperatures below 50 mK and a cooling power of several micro-Watt at 100 mK is available for more than 15 hours at the time, with a re-cycle period of about 4 hours.