A compact rotating dilution refrigerator

M. J. Fear; P. M. Walmsley; D. A. Chorlton; D. E. Zmeev; S. J. Gillott; M. C. Sellers; P. P. Richardson; H. Agrawal; G. Batey; A. I. Golov

doi:10.1063/1.4822340

A compact rotating dilution refrigerator

M. J. Fear, P. M. Walmsley, D. A. Chorlton, D. E. Zmeev, S. J. Gillott, M. C. Sellers, P. P. Richardson, H. Agrawal, G. Batey, A. I. Golov

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Abstract

We describe the design and performance of a new rotating dilution refrigerator that will primarily be used for investigating the dynamics of quantized vortices in superfluid 4He. All equipment required to operate the refrigerator and perform experimental measurements is mounted on two synchronously driven, but mechanically decoupled, rotating carousels. The design allows for relative simplicity of operation and maintenance and occupies a minimal amount of space in the laboratory. Only two connections between the laboratory and rotating frames are required for the transmission of electrical power and helium gas recovery. Measurements on the stability of rotation show that rotation is smooth to around 10-3 rad s-1 up to angular velocities in excess of 2.5 rad s-1. The behavior of a high-Q mechanical resonator during rapid changes in rotation has also been investigated. © 2013 AIP Publishing LLC.

Original language	English
Article number	103905
Journal	Review of Scientific Instruments
Volume	84
Issue number	10
DOIs	https://doi.org/10.1063/1.4822340 https://doi.org/doi: 10.1063/1.4822340
Publication status	Published - Oct 2013

Keywords

cryogenics
dilution refrigerator
superfluids

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@article{da827b6a94aa4b36a43c2a1c5598bbbb,

title = "A compact rotating dilution refrigerator",

abstract = "We describe the design and performance of a new rotating dilution refrigerator that will primarily be used for investigating the dynamics of quantized vortices in superfluid 4He. All equipment required to operate the refrigerator and perform experimental measurements is mounted on two synchronously driven, but mechanically decoupled, rotating carousels. The design allows for relative simplicity of operation and maintenance and occupies a minimal amount of space in the laboratory. Only two connections between the laboratory and rotating frames are required for the transmission of electrical power and helium gas recovery. Measurements on the stability of rotation show that rotation is smooth to around 10-3 rad s-1 up to angular velocities in excess of 2.5 rad s-1. The behavior of a high-Q mechanical resonator during rapid changes in rotation has also been investigated. {\textcopyright} 2013 AIP Publishing LLC.",

keywords = "cryogenics, dilution refrigerator, superfluids",

author = "Fear, {M. J.} and Walmsley, {P. M.} and Chorlton, {D. A.} and Zmeev, {D. E.} and Gillott, {S. J.} and Sellers, {M. C.} and Richardson, {P. P.} and H. Agrawal and G. Batey and Golov, {A. I.}",

note = "This project was funded by an Engineering and Physical Sciences Research Council (EPSRC) Career Acceleration Fellowship awarded to P.M.W. (Grant No. EP/I003738).",

year = "2013",

month = oct,

doi = "10.1063/1.4822340",

language = "English",

volume = "84",

journal = "Review of Scientific Instruments",

issn = "1089-7623",

publisher = "American Institute of Physics",

number = "10",

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TY - JOUR

T1 - A compact rotating dilution refrigerator

AU - Fear, M. J.

AU - Walmsley, P. M.

AU - Chorlton, D. A.

AU - Zmeev, D. E.

AU - Gillott, S. J.

AU - Sellers, M. C.

AU - Richardson, P. P.

AU - Agrawal, H.

AU - Batey, G.

AU - Golov, A. I.

N1 - This project was funded by an Engineering and Physical Sciences Research Council (EPSRC) Career Acceleration Fellowship awarded to P.M.W. (Grant No. EP/I003738).

PY - 2013/10

Y1 - 2013/10

N2 - We describe the design and performance of a new rotating dilution refrigerator that will primarily be used for investigating the dynamics of quantized vortices in superfluid 4He. All equipment required to operate the refrigerator and perform experimental measurements is mounted on two synchronously driven, but mechanically decoupled, rotating carousels. The design allows for relative simplicity of operation and maintenance and occupies a minimal amount of space in the laboratory. Only two connections between the laboratory and rotating frames are required for the transmission of electrical power and helium gas recovery. Measurements on the stability of rotation show that rotation is smooth to around 10-3 rad s-1 up to angular velocities in excess of 2.5 rad s-1. The behavior of a high-Q mechanical resonator during rapid changes in rotation has also been investigated. © 2013 AIP Publishing LLC.

AB - We describe the design and performance of a new rotating dilution refrigerator that will primarily be used for investigating the dynamics of quantized vortices in superfluid 4He. All equipment required to operate the refrigerator and perform experimental measurements is mounted on two synchronously driven, but mechanically decoupled, rotating carousels. The design allows for relative simplicity of operation and maintenance and occupies a minimal amount of space in the laboratory. Only two connections between the laboratory and rotating frames are required for the transmission of electrical power and helium gas recovery. Measurements on the stability of rotation show that rotation is smooth to around 10-3 rad s-1 up to angular velocities in excess of 2.5 rad s-1. The behavior of a high-Q mechanical resonator during rapid changes in rotation has also been investigated. © 2013 AIP Publishing LLC.

KW - cryogenics

KW - dilution refrigerator

KW - superfluids

U2 - 10.1063/1.4822340

DO - 10.1063/1.4822340

M3 - Article

SN - 1089-7623

VL - 84

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 10

M1 - 103905

ER -

A compact rotating dilution refrigerator

Abstract

Keywords

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