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Title: Radiometric characterization of a high temperature blackbody in the visible and near infrared

At the Physikalisch-Technische Bundesanstalt the radiance temperature in the range from 962 °C to 3000 °C is disseminated by applying a high temperature blackbody (HTBB) with a directly heated pyrolytic graphite cavity. The thermodynamic radiance temperature of the HTBB was measured in the temperature range from 1000 °C to 3000 °C by applying almost simultaneously absolutely calibrated silicon photodiode based filter radiometers with centre wavelengths at 476 nm, 676 nm, 800 nm, 900 nm and 1000 nm and InGaAs photodiode based filter radiometers with centre wavelengths at 1300 nm, 1550 nm and 1595 nm. The results demonstrate that, expressed in terms of irradiance, within an uncertainty of 0.1 % (k=1) in a broad wavelength range the thermodynamic radiance temperature of the HTBB is wavelength independent in the investigated temperature interval.
Authors:
;  [1]
  1. Physikalisch-Technische Bundesanstalt, Abbestraße 2-12, D-10587 Berlin (Germany)
Publication Date:
OSTI Identifier:
22218029
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1552; Journal Issue: 1; Conference: 9. international temperature symposium, Los Angeles, CA (United States), 19-23 Mar 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BLACKBODY RADIATION; CALIBRATION; FILTERS; GALLIUM ARSENIDES; GRAPHITE; INDIUM ARSENIDES; PHOTODIODES; PYROMETERS; RADIANT FLUX DENSITY; RADIOMETERS; SEMICONDUCTOR MATERIALS; SILICON; TEMPERATURE MEASUREMENT; TEMPERATURE RANGE 0400-1000 K; VISIBLE SPECTRA; WAVELENGTHS