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Proceedings Paper

On-orbit experience with the Spitzer far infrared detectors
Author(s): E. T. Young; G. H Rieke; M. Blaylock; J. Cadien; C. W. Engelbracht; K. D. Gordon; D. Kelly; K. Misselt; J. Morrison; J. Muzerolle; J. Stansberry; K. Y. L. Su; D. Fadda; D. Frayer; A. Noriega-Crespo; J. Rho
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Paper Abstract

The far-infrared detectors on the Multiband Imaging Photometer for Spitzer (MIPS) represent a significant advancement in both format and sensitivity. We describe some of the operational experience since launch in August 2003. MIPS has three infrared detector arrays, a 128x128 format Si:As impurity band conduction detector operating at 24 μm, a 32x32 format Ge:Ga array operating at 70 μm and a 2x20 format stressed Ge:Ga array operating at 160 μm. Since both germanium detectors utilize conventional bulk photoconductors, they are subject to a number of non-ideal behaviors that are inherent in these types of devices when operated in ultra-low backgrounds. The principal problems are nonlinear time response, changing responsivity in a radiation environment, and flux non-linearities. We describe observing strategies that are used on MIPS to minimize the impact of these effects.

Paper Details

Date Published: 29 August 2005
PDF: 8 pages
Proc. SPIE 5883, Infrared Spaceborne Remote Sensing 2005, 58830P (29 August 2005); doi: 10.1117/12.625545
Show Author Affiliations
E. T. Young, The Univ. of Arizona/Steward Observatory (United States)
G. H Rieke, The Univ. of Arizona/Steward Observatory (United States)
M. Blaylock, The Univ. of Arizona/Steward Observatory (United States)
J. Cadien, The Univ. of Arizona/Steward Observatory (United States)
C. W. Engelbracht, The Univ. of Arizona/Steward Observatory (United States)
K. D. Gordon, The Univ. of Arizona/Steward Observatory (United States)
D. Kelly, The Univ. of Arizona/Steward Observatory (United States)
K. Misselt, The Univ. of Arizona/Steward Observatory (United States)
J. Morrison, The Univ. of Arizona/Steward Observatory (United States)
J. Muzerolle, The Univ. of Arizona/Steward Observatory (United States)
J. Stansberry, The Univ. of Arizona/Steward Observatory (United States)
K. Y. L. Su, The Univ. of Arizona/Steward Observatory (United States)
D. Fadda, Spitzer Science Ctr. (United States)
D. Frayer, Spitzer Science Ctr. (United States)
A. Noriega-Crespo, Spitzer Science Ctr. (United States)
J. Rho, Spitzer Science Ctr. (United States)


Published in SPIE Proceedings Vol. 5883:
Infrared Spaceborne Remote Sensing 2005
Marija Strojnik, Editor(s)

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