A 250 mK Refrigerator for Remote Astronomical Observing

这项工作将开发一种新型制冷机，利用新的脉冲管技术将天文红外探测器冷却到1K以下。 USAP目前每年花费约100万美元向南极提供液氦。 如果这项努力完全成功，那么大部分资金可以节省下来，甚至可以从南极望远镜中获得更多的科学。 冷却器也将在其他地方应用，最终可能在太空中应用。

This work will develop a new type of refrigerator to cool astronomical infrared detectors to less than 1K using the new pulse tube technology. USAP currently spends about $1M per year providing liquid helium to South Pole for this purpose. If this effort is fully successful than most of that money can be saved and even more science will be obtained from the South Pole telescopes. The cooler will have application at other sites as well and possibly eventually in space.