Photoconductor array camera and spectrometer (PACS) for far-infrared and submillimetre telescope FIRST

Albrecht Poglitsch; Christoffel Waelkens; Norbert Geis

doi:10.1117/12.372661

6 December 1999 Photoconductor array camera and spectrometer (PACS) for far-infrared and submillimetre telescope FIRST

Albrecht Poglitsch, Christoffel Waelkens, Norbert Geis

Proceedings Volume 3759, Infrared Spaceborne Remote Sensing VII; (1999) https://doi.org/10.1117/12.372661
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

The Photoconductor Array Camera & Spectrometer (PACS) is one of the three science instruments for ESA's Far Infra-Red and Submillimeter Telescope (FIRST). It employs two 16 X 25 pixels Ge:Ga photoconductor arrays (stressed/unstressed) to perform imaging photometry and imaging line spectroscopy in the 60 - 210 micrometer wavelength band, with an optional extensions to approximately 300 micrometer. In photometry mode, it will simultaneously image two bands, 60 - 90 or 90 - 130 micrometer and 130 - 210 micrometer, over fields of view of approximately 1' X 1.5' and approximately 2' X 3', respectively, with full beam sampling in each band. In spectroscopy mode, it will image a field of approximately 50' X 50', resolved into 5 X 5 pixels, with an instantaneous spectral coverage of approximately 1500 km/s and a spectral resolution of approximately 175 km/s. In both modes background-noise limited performance is expected, with sensitivities (5(sigma) in 1h) of 4 - 6 mJy or 3 X 10^-18 W/m², respectively.

Citation Download Citation

Albrecht Poglitsch, Christoffel Waelkens, and Norbert Geis "Photoconductor array camera and spectrometer (PACS) for far-infrared and submillimetre telescope FIRST", Proc. SPIE 3759, Infrared Spaceborne Remote Sensing VII, (6 December 1999); https://doi.org/10.1117/12.372661

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