Primary current-sensing noise thermometry in the millikelvin regime

A. Shibahara, O. Hahtela, J. Engert, H. van der Vliet, L.V. Levitin, A. Casey, C.P. Lusher, J. Saunders, D. Drung, T.H. Schurig

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

Abstract

The use of low-temperature platforms with base temperatures below 1K is rapidly expanding, for fundamental science, sensitive instrumentation and new technologies of potentially significant commercial impact. Precise measurement of the thermodynamic temperature of these lowtemperature platforms is crucial for their operation. In this paper, we describe a practical and user-friendly primary current-sensing noise thermometer (CSNT) for reliable and traceable thermometry and the dissemination of the new kelvin in this temperature regime. Design considerations of the thermometer are discussed, including the optimization of a thermometer for the temperature range to be measured, noise sources and thermalization. We show the procedure taken to make the thermometer primary and contributions to the uncertainty budget. With standard laboratory instrumentation, a relative uncertainty of 1.53% is obtainable. Initial comparison measurements between a primary CSNT and a superconducting reference device traceable to the PLTS-2000 (Provisional Low Temperature Scale of 2000) are presented between 66 and 208 mK, showing good agreement within the k =1 calculated uncertainty.
Original languageEnglish
Article number20150054
JournalPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Volume374
Issue number2064
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

Fingerprint

Thermometer
Thermometers
thermometers
temperature measurement
Sensing
Instrumentation
Uncertainty
Temperature
platforms
Temperature scales
temperature scales
temperature
Kelvin
budgets
Thermodynamics
thermodynamics
optimization
Optimization
Range of data

Keywords

  • noise
  • PLTS-2000
  • primary
  • SWUID
  • thermometry
  • uncertainty

Cite this

Shibahara, A., Hahtela, O., Engert, J., van der Vliet, H., Levitin, L. V., Casey, A., ... Schurig, T. H. (2016). Primary current-sensing noise thermometry in the millikelvin regime. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 374(2064), [20150054]. https://doi.org/10.1098/rsta.2015.0054
Shibahara, A. ; Hahtela, O. ; Engert, J. ; van der Vliet, H. ; Levitin, L.V. ; Casey, A. ; Lusher, C.P. ; Saunders, J. ; Drung, D. ; Schurig, T.H. / Primary current-sensing noise thermometry in the millikelvin regime. In: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 2016 ; Vol. 374, No. 2064.
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Shibahara, A, Hahtela, O, Engert, J, van der Vliet, H, Levitin, LV, Casey, A, Lusher, CP, Saunders, J, Drung, D & Schurig, TH 2016, 'Primary current-sensing noise thermometry in the millikelvin regime', Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 374, no. 2064, 20150054. https://doi.org/10.1098/rsta.2015.0054

Primary current-sensing noise thermometry in the millikelvin regime. / Shibahara, A.; Hahtela, O.; Engert, J.; van der Vliet, H.; Levitin, L.V.; Casey, A.; Lusher, C.P.; Saunders, J.; Drung, D.; Schurig, T.H.

In: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 374, No. 2064, 20150054, 2016.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - Primary current-sensing noise thermometry in the millikelvin regime

AU - Shibahara, A.

AU - Hahtela, O.

AU - Engert, J.

AU - van der Vliet, H.

AU - Levitin, L.V.

AU - Casey, A.

AU - Lusher, C.P.

AU - Saunders, J.

AU - Drung, D.

AU - Schurig, T.H.

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AB - The use of low-temperature platforms with base temperatures below 1K is rapidly expanding, for fundamental science, sensitive instrumentation and new technologies of potentially significant commercial impact. Precise measurement of the thermodynamic temperature of these lowtemperature platforms is crucial for their operation. In this paper, we describe a practical and user-friendly primary current-sensing noise thermometer (CSNT) for reliable and traceable thermometry and the dissemination of the new kelvin in this temperature regime. Design considerations of the thermometer are discussed, including the optimization of a thermometer for the temperature range to be measured, noise sources and thermalization. We show the procedure taken to make the thermometer primary and contributions to the uncertainty budget. With standard laboratory instrumentation, a relative uncertainty of 1.53% is obtainable. Initial comparison measurements between a primary CSNT and a superconducting reference device traceable to the PLTS-2000 (Provisional Low Temperature Scale of 2000) are presented between 66 and 208 mK, showing good agreement within the k =1 calculated uncertainty.

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