We consider the physical and technical aspects of the transition to a new definition of the temperature unit as a physical quantity, reveal the features of the implementation of an absolute method for its reproduction in radiometric thermometry, and outline the physical foundations of the method and its theoretical substantiation. A comprehensive analysis of the procedure for reproducing the temperature unit according to its new definition is given, features of the implementation of the method in reference radiometric thermometry are shown, and an estimate of the measurement error is given.

Keywords: thermodynamic temperature, absolute method, Planck radiation, radiometric thermometry, measurement, error, asymmetry, spectra PACS: 06.20.−f, 06.30.−k, 07.20.−n (all) DOI: 10.3367/UFNe.2023.10.039571 URL: https://ufn.ru/en/articles/2024/7/d/ 001328253200004 2-s2.0-85202661577 2024PhyU...67..706K Citation: Khodunkov V P "Physical and technical aspects of radiometric thermometry from the standpoint of a new definition of the temperature unit" Phys. Usp. 67 706–716 (2024) BibTexBibNote ® (generic) BibNote ® (RIS)MedlineRefWorks TY JOUR TI Physical and technical aspects of radiometric thermometry from the standpoint of a new definition of the temperature unit AU Khodunkov, V. P. PB Physics-Uspekhi PY 2024 JO Physics-Uspekhi JF Physics-Uspekhi JA Phys. Usp. VL 67 IS 7 SP 706-716 UR https://ufn.ru/en/articles/2024/7/d/ ER https://doi.org/10.3367/UFNe.2023.10.039571 Received: 21st, June 2023, revised: 23rd, August 2023, accepted: 2nd, October 2023 Оригинал: Ходунков В П «Физико-технические аспекты радиометрической термометрии с позиций нового определения единицы температуры» УФН 194 753–764 (2024); DOI: 10.3367/UFNr.2023.10.039571