The effect of the angular characteristics of reflection of an absorptive coating on the effective absorption coefficient of a detector with a hemisphere
Abstract
An analysis is presented of the absorption efficiency of a detector with a specular hemisphere, with consideration of the reflection indicatrix for several black coatings used in actinometry. It is shown that, for nondiffuse coatings, the efficiency of the hemisphere increases in the case of oblique irradiation of the detector surface. Allowance for the angular reflection characteristics of the coating leads to greater values of the effective absorption coefficient.
- Publication:
-
Radiation Studies in the Atmosphere
- Pub Date:
- 1980
- Bibcode:
- 1980rsa..book..129K
- Keywords:
-
- Angular Correlation;
- Energy Absorption Films;
- Heat Shielding;
- Pyroheliometers;
- Reflectance;
- Spherical Antennas;
- Antenna Design;
- Antireflection Coatings;
- Bolometers;
- Photometry;
- Radiometers;
- Instrumentation and Photography