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Ryan Snodgrass (Assoc)

Ryan Snodgrass is a research scientist in the Quantum Sensors Group, where he leads multiple projects related to cryogenics. His research interests include thermoacoustic systems such as pulse tube refrigerators and Gifford-McMahon cryocoolers, as well as sub-kelvin coolers such as dilution refrigerators. Ryan’s foremost goal is to make cryogenic refrigerators more accessible, compact, and energy efficient. Towards these aims, his recent projects have included a detailed study of regenerator cooling power in 4 kelvin pulse tube refrigerators, methods for rapid cooldown of pulse tube refrigerators, and the thermodynamic analysis of miniature dilution refrigerators that circulate helium-3 using cold adsorption pumps.

Publications

Low-frequency cryocoolers are compressed inefficiently

Author(s)
Ryan Snodgrass, Vincent Kotsubo, Jens Hoehne, Joel Ullom
Millikelvin refrigerators are enabling tools for many fields of modern science, including quantum information processing. They are typically precooled to 4 K by...
Created December 10, 2019, Updated November 13, 2023
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