| Download | - View final version: The development of the advanced cryogenic radiometer facility at NRC (PDF, 2 MB)
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| DOI | Resolve DOI: https://doi.org/10.1088/1742-6596/972/1/012014 |
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| Author | Search for: Gamouras, A1; Search for: Todd, A. D. W.1; Search for: Côté, É1; Search for: Rowell, N. L.1 |
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| Name affiliation | - National Research Council of Canada. Measurement Science and Standards
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| Format | Text, Article |
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| Abstract | The National Research Council (NRC) of Canada has established a next generation facility for the primary realization of optical radiant power. The main feature of this facility is a new cryogenic electrical substitution radiometer with a closed-cycle helium cryocooler. A monochromator-based approach allows for detector calibrations at any desired wavelength. A custom-designed motion apparatus includes two transfer standard radiometer mounting ports which has increased our measurement capability by allowing the calibration of two photodetectors in one measurement cycle. Measurement uncertainties have been improved through several upgrades, including newly designed and constructed transimpedance amplifiers for the transfer standard radiometers, and a higher power broadband light source. The most significant improvements in uncertainty arise from the enhanced characteristics of the new cryogenic radiometer including its higher cavity absorptance and reduced non-equivalence effects. |
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| Publication date | 2018-03-02 |
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| Publisher | IOP Publishing |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 23002976 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction |
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| Record identifier | 1e73bf82-547b-45e0-945b-82b8b25d2440 |
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| Record created | 2018-03-29 |
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| Record modified | 2020-05-30 |
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