29 August 2005 On-orbit experience with the Spitzer far infrared detectors
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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.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
E. T. Young, E. T. Young, G. H Rieke, G. H Rieke, M. Blaylock, M. Blaylock, J. Cadien, J. Cadien, C. W. Engelbracht, C. W. Engelbracht, K. D. Gordon, K. D. Gordon, D. Kelly, D. Kelly, K. Misselt, K. Misselt, J. Morrison, J. Morrison, J. Muzerolle, J. Muzerolle, J. Stansberry, J. Stansberry, K. Y. L. Su, K. Y. L. Su, D. Fadda, D. Fadda, D. Frayer, D. Frayer, A. Noriega-Crespo, A. Noriega-Crespo, J. Rho, J. Rho, } "On-orbit experience with the Spitzer far infrared detectors", Proc. SPIE 5883, Infrared Spaceborne Remote Sensing 2005, 58830P (29 August 2005); doi: 10.1117/12.625545; https://doi.org/10.1117/12.625545


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