Optical design of the Diffuse Infrared Background Experiment for NASA's Cosmic Background ExplorerThe conceptual design for a ten-band absolute filter photometer (the Diffuse Infrared Background Experiment) to operate at 2 K and measure galactic and extragalactic infrared radiation in the 1 to 300-micron range and polarization in the 1 to 3.5-micron range is presented, as part of the NASA Cosmic Background Explorer. The telescope optical design, a Gregorian design incorporating bafffles and shades to provide high stray-light rejection, is described. Pupil nonuniformity in the detector-assembly optical design has been limited. It is determined that detector sensitiity requirements can be met, and that the problem of radiation-induced responsivity variations can be solved by minimizing detector-assembly size, providing for in situ thermal annealing, and allowing for frequent detector calibration. Limitations on mirror performance are to be met by fabricating mirrors and structure from the same aluminum 6061 ingot.
Document ID
19830050819
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Miller, M. S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Evans, D. C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Moseley, H. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Ludwig, U. W. (NASA Goddard Space Flight, Center Laboratory for Extraterrestrial Physics, Greenbelt, MD, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
Optics
Meeting Information
Meeting: Instrumentation in astronomy IV; Fourth Conference