Wide Field And Diffraction Limited Array Camera For Sirtf

G. G. Fazio; D. G. Koch; G. J. Melnick; R. M. Tresch-Fienberg; S. P. Willner; D. Y. Gezari; G. Lamb; P. Shu; G. Chin; R. Silverberg; J. Mather; W. F. Hoffmann; N. J. Woolf; J. Pipher; W. Forrest; C. R. McCreight

doi:10.1117/12.966639

18 July 1986 Wide Field And Diffraction Limited Array Camera For SIRTF

G. G. Fazio, D. G. Koch, G. J. Melnick, R. M. Tresch-Fienberg, S. P. Willner, D. Y. Gezari, G. Lamb, P. Shu, G. Chin, R. Silverberg, J. Mather, W. F. Hoffmann, N. J. Woolf, J. Pipher, W. Forrest, C. R. McCreight

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Proceedings Volume 0619, Cryogenic Optical Systems and Instruments II; (1986) https://doi.org/10.1117/12.966639
Event: O-E/LASE'86 Symposium, 1986, Los Angeles, CA, United States

Abstract

The Infrared Array Camera for the Space Infrared Telescope Facility (SIRTF/IRAC) is capable of two-dimensional photometry in either a wide field or diffraction-limited mode over the wavelength interval from 2 to 30 microns. Three different two-dimensional direct readout (DRO) array detectors are being considered: Band 1 - InSb or Si:In (2 - 5 microns) 128 x 128 pixels, Band 2 - Si:Ga (5 - 18 microns) 64 x 64 pixels, and Band 3 - Si:Sb (18 -30 microns) 64 x 64 pixels. The hybrid DRO readout architecture has the advantages of low read noise, random pixel access with individual readout rates, and non-destructive readout. The scientific goals of IRAC are discussed, which are the basis for several important requirements and capabilities of the array camera: 1) diffraction-limited resolution from 2 - 30 microns, 2) use of the maximum unvignetted field of view of SIRTF, 3) simultaneous observations within the three infrared spectral bands, 4) the capability for broad and narrow bandwith spectral resolution. A strategy has been developed to minimize the total electronic and environmental noise sources to satisfy the scientific requirements.

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G. G. Fazio, D. G. Koch, G. J. Melnick, R. M. Tresch-Fienberg, S. P. Willner, D. Y. Gezari, G. Lamb, P. Shu, G. Chin, R. Silverberg, J. Mather, W. F. Hoffmann, N. J. Woolf, J. Pipher, W. Forrest, and C. R. McCreight "Wide Field And Diffraction Limited Array Camera For SIRTF", Proc. SPIE 0619, Cryogenic Optical Systems and Instruments II, (18 July 1986); https://doi.org/10.1117/12.966639

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KEYWORDS

Sensors

Cameras

Infrared radiation

Galactic astronomy

Field effect transistors

Optical filters

Infrared cameras

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