A continuous dry 300 mK cooler for THz sensing applications

Journal Article · Fri Apr 15 00:00:00 EDT 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4945691· OSTI ID:22597142

Ade, P. A. R.; Sudiwala, R. ^[1]; Chase, S. ^[2]; Woodcraft, A. L. ^[3]

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1. School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade, Cardiff CF24 3AA (United Kingdom)
2. Chase Research Cryogenics Ltd., Uplands, 140 Manchester Road, Sheffield S10 5DL (United Kingdom)
3. QMC Instruments Ltd., School of Physics and Astronomy, Cardiff University, Queen’s Buildings, The Parade, Cardiff CF24 3AA (United Kingdom)

We describe and demonstrate the automated operation of a novel cryostat design that is capable of maintaining an unloaded base temperature of less than 300 mK continuously, without the need to recycle the gases within the final cold head, as is the case for conventional single shot sorption pumped {sup 3}He cooling systems. This closed dry system uses only 5 l of {sup 3}He gas, making this an economical alternative to traditional systems where a long hold time is required. During testing, a temperature of 365 mK was maintained with a constant 20 μW load, simulating the cooling requirement of a far infrared camera.

• OSTI ID: 22597142
• Journal Information: Review of Scientific Instruments, Vol. 87, Issue 4; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
42 ENGINEERING
CAMERAS
COOLING
COOLING SYSTEMS
CRYOSTATS
GASES
HEAT EXCHANGERS
HELIUM 3