| Zugriffsnummer | 34296 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Primary current-sensing noise thermometry in the millikelvin regime |
| Autor(in); Institution |
Shibahara, Aya; Royal Holloway Uni of London, Egham, UK
Hahtela, O.; VTT Espoo, FINLAND
Engert, Jost; 7.4, Temperatur, PTB-Berlin
van der Vilet, H.; Royal Holloway Uni of London, Egham, UK
Levitin, L. V.; Royal Holloway Uni of London, Egham, UK
Casey, Andrew; Royal Holloway Uni of London, Egham, UK
Lusher, Chris P.; Royal Holloway Uni of London, Egham, UK
Saunders, John; Royal Holloway Uni of London, Egham, UK
Drung, Dietmar; 7.2, Kryophysik und Spektrometrie, PTB-Berlin
Schurig, Thomas; 7.2, Kryophysik und Spektrometrie, PTB-Berlin
|
| Quelle/Jahr | Philosophical Transactions of the Royal Society of London A: 374 (2016), 2064, 14 S. |
| ISSN | 1364-503X (PRINT) ; 1471-2970 (ONLINE) |
| DOI | |
| Verlag | London: Publishing Section, The Royal Society |
| Freie Schlagworte | noise ; thermometry ; PLTS-2000 ; SQUID ; primary ; uncertainty |
| Zusammenfassung | The article is part ob the Theo Murphy meeting issue ‘Towards implementing the new kelvin’ organised and edited by Graham Machin, Joachim Fischer, Peter Hänggi and Martin Trusler. The use of low temperature platforms with base temperatures below 1 K is rapidly expanding, for fundamental science, sensitive Instrumentation and new technologies of potentially significant commercial impact. Precise measurement of the thermodynamic temperature of these low temperature 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 optimisation of a thermometer for the temperature range to be measured, noise sources and thermalisation. 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 with a superconducting reference device traceable to the PLTS-2000 are presented between 65 mK and 208 mK, showing good agreement within the k = 1 calculated uncertainty. |
Zitierung
Shibahara, A., Hahtela, O., Engert, J., van der Vilet, H., Levitin, L. V., Casey, A., Lusher, C. P., Saunders, J., Drung, D., & Schurig, T. (2016). Primary current-sensing noise thermometry in the millikelvin regime. Philosophical Transactions of the Royal Society of London A, 374(2064), 14 S. https://doi.org/10.1098/rsta.2015.0054