1. BRDF profile of Tyvek and its implementation in the Geant4 simulation toolkit
- Author
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Dusan Mandat, Miroslav Hrabovsky, Miroslav Palatka, Helena Hiklová, Miroslav Pech, Libor Nozka, and Petr Schovanek
- Subjects
Physics ,Light ,Polymers ,business.industry ,Monte Carlo method ,Unified Model ,Scatterometer ,Fresnel equations ,Atomic and Molecular Physics, and Optics ,Refractometry ,Optics ,Models, Chemical ,Tyvek ,Materials Testing ,Scattering, Radiation ,Computer Simulation ,Programming Languages ,Profilometer ,Specular reflection ,Bidirectional reflectance distribution function ,business ,Software ,Remote sensing - Abstract
Diffuse and specular characteristics of the Tyvek 1025-BL material are reported with respect to their implementation in the Geant4 Monte Carlo simulation toolkit. This toolkit incorporates the UNIFIED model. Coefficients defined by the UNIFIED model were calculated from the bidirectional reflectance distribution function (BRDF) profiles measured with a scatterometer for several angles of incidence. Results were amended with profile measurements made by a profilometer.
- Published
- 2011