Realizing the Redefined Kelvin: Realization and Dissemination of the Kelvin below 25 K

Alexander Kirste; Jost Engert; Jukka Pekola; Joonas Peltonen; Shahin Tabandeh; Laurent Pitre; Fernando Sparasci

doi:10.1063/5.0234869

Realizing the Redefined Kelvin: Realization and Dissemination of the Kelvin below 25 K

Alexander Kirste^*
, Jost Engert
, Jukka Pekola
, Joonas Peltonen
, Shahin Tabandeh
, Laurent Pitre
, Fernando Sparasci

^*Corresponding author for this work

SU1203 Process metrology

German National Metrology Institute (PTB)
Aalto University
Laboratoire Commun de Métrologie (LNE-CNAM)

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

3 Citations (Scopus)

Abstract

With the redefinition of the kelvin in 2019 and the new mise en pratique for the definition of the kelvin (MeP-K) [1], the realization of the kelvin is no longer exclusively confined to the International Temperature Scales (ITS-90, PLTS-2000). Primary thermometry has become possible as an alternative method for the realization of the kelvin. For that purpose, different primary thermometers, specifically the primary magnetic field fluctuation thermometer (pMFFT), the Coulomb blockade thermometer (CBT) and the acoustic gas thermometer (AGT) have been optimized in the EMPIR project Real-K [2] for an extended operation range to cover, at least partly, the temperature range from 1 K to 25 K. The performance of the thermometers was checked by comparison with the ITS-90 at various arbitrary temperatures. Two reference points served as highly stable and well characterized references, the superfluid lambda transition in ⁴He (O-point) at 2.1768 K and the Ne triple point at 24.5561 K. With pMFFT and CBT we also demonstrated a smooth overlap between the PLTS-2000 range below 1 K and the ITS-90 range above 1 K. All the investigated primary thermometers proved to be very practical alternatives to the established thermometric methods of the ITS-90 in the range below 25 K.

Original language	English
Title of host publication	Temperature: Its Measurement and Control in Science and Industry
Subtitle of host publication	Proceedings of the Tenth International Temperature Symposium
Editors	Christopher W. Meyer
Publisher	American Institute of Physics (AIP)
Volume	9
DOIs	https://doi.org/10.1063/5.0234869
Publication status	Published - 18 Oct 2024
MoE publication type	A4 Article in a conference publication
Event	10th International Temperature Symposium on Temperature: Its Measurement and Control in Science and Industry, ITS 2023 - Anaheim, United States Duration: 3 Apr 2023 → 7 Apr 2023

Publication series

Series	AIP Conference Proceedings
Volume	3230
ISSN	0094-243X

Conference

Conference	10th International Temperature Symposium on Temperature: Its Measurement and Control in Science and Industry, ITS 2023
Country/Territory	United States
City	Anaheim
Period	3/04/23 → 7/04/23

Funding

The research reported here has received funding from the EMPIR programme as an integrated part of Horizon 2020, the European Union\u2019s Framework Programme for Research and Innovation grant number 18SIB02 Real-K.

Access to Document

10.1063/5.0234869

Cite this

Kirste, A., Engert, J., Pekola, J., Peltonen, J., Tabandeh, S., Pitre, L., & Sparasci, F. (2024). Realizing the Redefined Kelvin: Realization and Dissemination of the Kelvin below 25 K. In C. W. Meyer (Ed.), Temperature: Its Measurement and Control in Science and Industry: Proceedings of the Tenth International Temperature Symposium (Vol. 9). American Institute of Physics (AIP). https://doi.org/10.1063/5.0234869

Kirste, Alexander ; Engert, Jost ; Pekola, Jukka et al. / Realizing the Redefined Kelvin : Realization and Dissemination of the Kelvin below 25 K. Temperature: Its Measurement and Control in Science and Industry: Proceedings of the Tenth International Temperature Symposium. editor / Christopher W. Meyer. Vol. 9 American Institute of Physics (AIP), 2024. (AIP Conference Proceedings, Vol. 3230).

@inproceedings{93cbbd212f1647e6ac79336b28661c27,

title = "Realizing the Redefined Kelvin: Realization and Dissemination of the Kelvin below 25 K",

abstract = "With the redefinition of the kelvin in 2019 and the new mise en pratique for the definition of the kelvin (MeP-K) [1], the realization of the kelvin is no longer exclusively confined to the International Temperature Scales (ITS-90, PLTS-2000). Primary thermometry has become possible as an alternative method for the realization of the kelvin. For that purpose, different primary thermometers, specifically the primary magnetic field fluctuation thermometer (pMFFT), the Coulomb blockade thermometer (CBT) and the acoustic gas thermometer (AGT) have been optimized in the EMPIR project Real-K [2] for an extended operation range to cover, at least partly, the temperature range from 1 K to 25 K. The performance of the thermometers was checked by comparison with the ITS-90 at various arbitrary temperatures. Two reference points served as highly stable and well characterized references, the superfluid lambda transition in 4He (O-point) at 2.1768 K and the Ne triple point at 24.5561 K. With pMFFT and CBT we also demonstrated a smooth overlap between the PLTS-2000 range below 1 K and the ITS-90 range above 1 K. All the investigated primary thermometers proved to be very practical alternatives to the established thermometric methods of the ITS-90 in the range below 25 K.",

author = "Alexander Kirste and Jost Engert and Jukka Pekola and Joonas Peltonen and Shahin Tabandeh and Laurent Pitre and Fernando Sparasci",

note = "Publisher Copyright: {\textcopyright} 2024 American Institute of Physics Inc.. All rights reserved.; 10th International Temperature Symposium on Temperature: Its Measurement and Control in Science and Industry, ITS 2023 ; Conference date: 03-04-2023 Through 07-04-2023",

year = "2024",

month = oct,

day = "18",

doi = "10.1063/5.0234869",

language = "English",

volume = "9",

series = "AIP Conference Proceedings",

publisher = "American Institute of Physics (AIP)",

editor = "Meyer, \{Christopher W.\}",

booktitle = "Temperature: Its Measurement and Control in Science and Industry",

address = "United States",

}

Kirste, A, Engert, J, Pekola, J, Peltonen, J, Tabandeh, S, Pitre, L & Sparasci, F 2024, Realizing the Redefined Kelvin: Realization and Dissemination of the Kelvin below 25 K. in CW Meyer (ed.), Temperature: Its Measurement and Control in Science and Industry: Proceedings of the Tenth International Temperature Symposium. vol. 9, American Institute of Physics (AIP), AIP Conference Proceedings, vol. 3230, 10th International Temperature Symposium on Temperature: Its Measurement and Control in Science and Industry, ITS 2023, Anaheim, United States, 3/04/23. https://doi.org/10.1063/5.0234869

Realizing the Redefined Kelvin: Realization and Dissemination of the Kelvin below 25 K. / Kirste, Alexander; Engert, Jost; Pekola, Jukka et al.
Temperature: Its Measurement and Control in Science and Industry: Proceedings of the Tenth International Temperature Symposium. ed. / Christopher W. Meyer. Vol. 9 American Institute of Physics (AIP), 2024. (AIP Conference Proceedings, Vol. 3230).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Realizing the Redefined Kelvin

T2 - 10th International Temperature Symposium on Temperature: Its Measurement and Control in Science and Industry, ITS 2023

AU - Kirste, Alexander

AU - Engert, Jost

AU - Pekola, Jukka

AU - Peltonen, Joonas

AU - Tabandeh, Shahin

AU - Pitre, Laurent

AU - Sparasci, Fernando

PY - 2024/10/18

Y1 - 2024/10/18

N2 - With the redefinition of the kelvin in 2019 and the new mise en pratique for the definition of the kelvin (MeP-K) [1], the realization of the kelvin is no longer exclusively confined to the International Temperature Scales (ITS-90, PLTS-2000). Primary thermometry has become possible as an alternative method for the realization of the kelvin. For that purpose, different primary thermometers, specifically the primary magnetic field fluctuation thermometer (pMFFT), the Coulomb blockade thermometer (CBT) and the acoustic gas thermometer (AGT) have been optimized in the EMPIR project Real-K [2] for an extended operation range to cover, at least partly, the temperature range from 1 K to 25 K. The performance of the thermometers was checked by comparison with the ITS-90 at various arbitrary temperatures. Two reference points served as highly stable and well characterized references, the superfluid lambda transition in 4He (O-point) at 2.1768 K and the Ne triple point at 24.5561 K. With pMFFT and CBT we also demonstrated a smooth overlap between the PLTS-2000 range below 1 K and the ITS-90 range above 1 K. All the investigated primary thermometers proved to be very practical alternatives to the established thermometric methods of the ITS-90 in the range below 25 K.

AB - With the redefinition of the kelvin in 2019 and the new mise en pratique for the definition of the kelvin (MeP-K) [1], the realization of the kelvin is no longer exclusively confined to the International Temperature Scales (ITS-90, PLTS-2000). Primary thermometry has become possible as an alternative method for the realization of the kelvin. For that purpose, different primary thermometers, specifically the primary magnetic field fluctuation thermometer (pMFFT), the Coulomb blockade thermometer (CBT) and the acoustic gas thermometer (AGT) have been optimized in the EMPIR project Real-K [2] for an extended operation range to cover, at least partly, the temperature range from 1 K to 25 K. The performance of the thermometers was checked by comparison with the ITS-90 at various arbitrary temperatures. Two reference points served as highly stable and well characterized references, the superfluid lambda transition in 4He (O-point) at 2.1768 K and the Ne triple point at 24.5561 K. With pMFFT and CBT we also demonstrated a smooth overlap between the PLTS-2000 range below 1 K and the ITS-90 range above 1 K. All the investigated primary thermometers proved to be very practical alternatives to the established thermometric methods of the ITS-90 in the range below 25 K.

UR - https://www.scopus.com/pages/publications/85209395131

U2 - 10.1063/5.0234869

DO - 10.1063/5.0234869

M3 - Conference article in proceedings

AN - SCOPUS:85209395131

VL - 9

T3 - AIP Conference Proceedings

BT - Temperature: Its Measurement and Control in Science and Industry

A2 - Meyer, Christopher W.

PB - American Institute of Physics (AIP)

Y2 - 3 April 2023 through 7 April 2023

ER -

Kirste A, Engert J, Pekola J, Peltonen J, Tabandeh S, Pitre L et al. Realizing the Redefined Kelvin: Realization and Dissemination of the Kelvin below 25 K. In Meyer CW, editor, Temperature: Its Measurement and Control in Science and Industry: Proceedings of the Tenth International Temperature Symposium. Vol. 9. American Institute of Physics (AIP). 2024. (AIP Conference Proceedings, Vol. 3230). doi: 10.1063/5.0234869

Realizing the Redefined Kelvin: Realization and Dissemination of the Kelvin below 25 K

Abstract

Publication series

Conference

Funding

Access to Document

Other files and links

Fingerprint

Cite this