Journal of Low Temperature Physics

, Volume 151, Issue 3–4, pp 669–674 | Cite as

A Cryogen-Free Miniature Dilution Refrigerator for Low-Temperature Detector Applications

Article

Abstract

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.

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.School of Physics & AstronomyCardiff UniversityCardiffUK
  2. 2.Chase Research Cryogenics Ltd.SheffieldUK
  3. 3.School of Physics & AstronomyUniversity of ManchesterManchesterUK

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