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Principles of stray light suppression and conceptual application to the design of the Diffuse Infrared Background Experiment for NASA's Cosmic Background ExplorerThe Diffuse Infrared Background Experiment (DIRBE) is a 10 band filter photometer that will operate at superfluid helium temperatures. Diffuse galactic and extragalactic infrared radiation in the 1-300 micrometer wavelength region will be measured by the instrument. Polarization measurements will be made for 3 bands in the 1-4 micrometer spectral region. The main sources of unwanted radiation are the sun, earth, thermal radiation from an external sun shield, the moon, the brighter planets and stars, and sky light itself from outside the instrument's nominal one degree square field of view. The system level engineering concepts and the principles of stray light suppression that resulted in the instrument design are presented.
Document ID
19850043077
Document Type
Conference Paper
Authors
Evans, D. C. (NASA Goddard Space Flight Center Instrument Systems Branch, Greenbelt, MD, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1983
Subject Category
OPTICS
Distribution Limits
Public
Copyright
Other