Far-infrared imaging array for SIRTF

Erick T. Young, James T. Davis, Craig L. Thompson, George H. Rieke, G. Rivlis, Richard Schnurr, James Cadien, Lacinda Davidson, Gregory S. Winters, Karen A. Kormos

Research output: Contribution to journalConference articlepeer-review

56 Scopus citations


We describe the design, construction, and performance of the 32 X 32 Ge:Ga imaging array being built at the University of Arizona for the Multiband Imaging Photometer for SIRTF (MIPS). The array will support a number of operational modes in the MIPS instrument including natural background-limited mapping at 70 micrometers , super-resolution observations at 70 micrometers , and spectral energy distribution measurements between 50 and 100 micrometers. The array is constructed in a modular manner using eight 4 X 32 pixel building blocks. To meet the sensitivity and stability requirements, the array must have excellent photometric repeatability, low noise, and robustness to the effects of the ionizing radiation environment in space. Key elements in attaining this level of performance are the Ge:Ga detectors materials and the cryogenic CRC-696 readout electronics. We present laboratory data for a 16 X 32 prototype of the array, and describe the plans for the construction of the qualification and flight units.

Original languageEnglish (US)
Pages (from-to)57-65
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1998
EventInfrared Astronomical Instrumentation - Kona, HI, United States
Duration: Mar 23 1998Mar 23 1998

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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