Bidirectional reflectance distribution function and hemispherical reflectance of JSC MARS-1

Georgi T. Georgiev; James J. Butler

doi:10.1117/12.461934

22 October 2002 Bidirectional reflectance distribution function and hemispherical reflectance of JSC MARS-1

Georgi T. Georgiev, James J. Butler

Proceedings Volume 4780, Surface Scattering and Diffraction for Advanced Metrology II; (2002) https://doi.org/10.1117/12.461934
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

Novel data are presented of Bidirectional Reflectance Distribution Function (BRDF) and 8° directional/hemispherical reflective measurements of Martian regolith simulant JSC Mars-1. The scatterometer of the National Aeronautics and Space Administration's Goddard Space Flight Center (NASA's GSFC) Diffuser Calibration Facility (DCaF) was used for the measurements reported. The data were obtained with a monochromator-based light source in the UltraViolet (UV), Visible (VIS), and Near InfraRed (NIR) spectral regions. The BRDF measurements were performed at different angles of incidence, and over a range of in-plane and out-of-plane geometries. The 8° directional/hemispherical reflective measurements were calibrated using a gray Spectralon sample set of 7 plates. The results presented are NIST traceable through calibrated standard plates. The hemispherical and diffuse scatter data obtained from these studies are important for future Mars space and ground based observations.

Citation Download Citation

Georgi T. Georgiev and James J. Butler "Bidirectional reflectance distribution function and hemispherical reflectance of JSC MARS-1", Proc. SPIE 4780, Surface Scattering and Diffraction for Advanced Metrology II, (22 October 2002); https://doi.org/10.1117/12.461934

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