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NIST Technical Note No. 1621: Optical radiation measurements based on detector standards



George P. Eppeldauer


Improved detector technology in the past two decades opened a new era in the field of optical radiation measurements. Lower calibration and measurement uncertainties can be achieved with modern detector/radiometer standards than traditionally used source (blackbody and lamp) standards. The achievable lower uncertainties gave the motivation to decrease the gap between the 0.02 % (k=2) relative expanded uncertainty of cryogenic radiometer measurements and the 2-3 orders of magnitude higher uncertainties of field level optical radiation measurements.
Technical Note (NIST TN) - 1621
Report Number


calibrations, candela, colorimetry, detector standards, kelvin, optical radiation, photometry, radiometric scales, spectral responsivity, NIST traceability


Eppeldauer, G. (2009), NIST Technical Note No. 1621: Optical radiation measurements based on detector standards, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed May 21, 2024)


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Created March 11, 2009, Updated February 19, 2017