Bidirectional reflectance scale comparison between NIST and PTB
Catherine C. Cooksey, Maria E. Nadal, David W. Allen, Kai-Olaf Hauer, Andreas Hoepe
A comparison of bidirectional reflectance scales between the National Institute of Standards and Technology (NIST) and the Physikalisch-Technische Bundesanstalt (PTB) has been performed. Measurements of two sets of white diffuse reflectance standards, two sintered polytetrafluoroethylene (PTFE) samples and two matte ceramic samples, were acquired using the 0:45 geometry where the angle of irradiation was 0 and the angle of reflection was 45. The results of this comparison show excellent agreement within the combined uncertainties.
, Nadal, M.
, Allen, D.
, Hauer, K.
and Hoepe, A.
Bidirectional reflectance scale comparison between NIST and PTB, Metrologia, [online], https://doi.org/10.1364/AO.54.004006
(Accessed March 28, 2023)