Narrow-field radiometry in a quasi-isotropic atmosphere

Alan Holmes; James M. Palmer; Martin G. Tomasko

doi:10.1117/12.957953

Narrow-field radiometry in a quasi-isotropic atmosphere

Alan Holmes, James M. Palmer, Martin G. Tomasko

Lunar and Planetary Lab

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

If a radiometer having a narrow field of view is used to measure the radiance of a source such as a quasi-isotropic atmosphere, a knowledge of the out-of-field responsivity is critical. For example, if a radiometer with a field of view of 5° (full-angle) has a relative responsivity of 10^-4 for the out-of-field radiation, the contribution of the out- of-field radiation (assuming an isotropic source subtending 2^π steradians) is 10 1/2% of the total signal. Either the stray light suppression of the radiometer must be extremely high or methods of determining the out-of-field response must be developed. A description of one method of determining the effect of out-of-field response and its application to a planetary atmospheric radiometer is presented.

Original language	English (US)
Pages (from-to)	27-32
Number of pages	6
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	196
DOIs	https://doi.org/10.1117/12.957953
State	Published - Nov 15 1979

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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Narrow-field radiometry in a quasi-isotropic atmosphere

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