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Near Infrared 45{degrees}/0{degrees} Reflectance Factor of Pressed Polytetrafluoroethylene (PTFE) Powder

Published

Author(s)

Maria E. Nadal, P Y. Barnes

Abstract

Pressed polytetrafluoroethylene (PTFE) powder is commonly used as a reflectance standard for bi-directional and hemispherical geometry. The radiometric and spectrophotometric community has demonstrated the need for the complete characterization of such of a standard. This publication presents the preliminary results on the reflection properties of PTFE in the near infrared region to expand the reflectance factor scale, as well as the measurements in the visible spectral region for continuity. The resulting variations in 45°/0° reflectance factor with sample preparation are briefly discussed.
Citation
Journal of Research (NIST JRES) -
Volume
104 No. 2

Keywords

45°/0° reflectance factor, bidirectional reflectance distribution, diffuse reflectance, pressed polytetrafluoroethylene powder

Citation

Nadal, M. and Barnes, P. (1998), Near Infrared 45{degrees}/0{degrees} Reflectance Factor of Pressed Polytetrafluoroethylene (PTFE) Powder, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD (Accessed April 14, 2024)
Created December 1, 1998, Updated February 17, 2017