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 128×128 format Si:As impurity band conduction detector operating at 24 μm, a 32×32 format Ge:Ga array operating at 70 μm and a 2×20 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.
Original language | English (US) |
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Article number | 58830P |
Pages (from-to) | 1-8 |
Number of pages | 8 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 5883 |
DOIs | |
State | Published - 2005 |
Event | Infrared Spaceborne Remote Sensing 2005 - San Diego, CA, United States Duration: Aug 3 2005 → Aug 4 2005 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering