Practical doppler broadening thermometry

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Agnew, Nicola and Machin, Graham and Riis, Erling and Arnold, Aidan S. (2024) Practical doppler broadening thermometry. AIP Conference Proceedings, 3230 (1). 110002. ISSN 1551-7616 (https://doi.org/10.1063/5.0234155)

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Abstract

We report initial research to develop a compact and practical primary thermometer based on Doppler broadening thermometry (DBT). The DBT sensor uses an intrinsic property of thermalized atoms, namely, the Doppler width of a spectral line characteristic of the atoms being probed. The DBT sensor, being founded on a primary thermometry approach, requires no calibration or reference, and so in principle could achieve reliable long-term in-situ thermodynamic temperature measurement. Here we describe our approach and report on initial proof-of-concept investigations with alkali metal vapour cells. Our focus is to develop long-term stable thermometers based on DBT that can be used to reliably measure temperatures for long periods and in environments where sensor retrieval for re-calibration is impractical such as in nuclear waste storage facilities.

ORCID iDs

Agnew, Nicola, Machin, Graham, Riis, Erling ORCID logoORCID: https://orcid.org/0000-0002-3225-5302 and Arnold, Aidan S. ORCID logoORCID: https://orcid.org/0000-0001-7084-6958;
  • Item type:Article
    ID code:91792
    Dates:
    Date
    Event
    18 October 2024
    Published
    18 October 2023
    Accepted
    12 July 2023
    Submitted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:13 Jan 2025 16:27
    Last modified:12 Feb 2025 02:22
    URI:https://strathprints.strath.ac.uk/id/eprint/91792
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