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Proceedings Paper

FIRSA: the demonstrator array of the FIR camera for the photoconductor instrument PACS on ESA's FIRST satellite
Author(s): Dietrich Lemke; Lothar Barl; S. Eckardt; Otto Frenzl; Ulrich Groezinger; Lou Hermans; Gerd Jakob; Reinhard O. Katterloher; Albrecht Poglitsch; Joost Seijnaeve; Juergen Wolf
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Paper Abstract

PACS covers the wavelength range 80-210 micrometers in spectrometric and photometric imaging modes. The long wavelength camera is a 16 X 25 pixel array of stressed Ge:Ga detectors. In order to demonstrate the feasibility of such a large array, one of the 25 linear arrays was manufactured. It consists of 16 elements of 1.5 mm3 each separated by ceramic plungers and stressed by one single mechanism. As preamplifier a dedicated CMOS circuit was developed, based on similar circuits successfully operating in ISO's photometer. In particular, it was intended to increase the gain of the CRE in order to minimize the debiasing effects on the low bias operated detectors. Two complete linear demonstrator arrays were manufactured and independently tested under various low background conditions in a 1.7 K environment at MPIA and MPE. The feasibility of the concept chosen was demonstrated in several functional tests. Valuable experience was gained to guide the development of the next generation of CREs and arrays.

Paper Details

Date Published: 21 August 1998
PDF: 7 pages
Proc. SPIE 3354, Infrared Astronomical Instrumentation, (21 August 1998); doi: 10.1117/12.317247
Show Author Affiliations
Dietrich Lemke, Max-Planck-Institut fuer Astronomie (Germany)
Lothar Barl, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
S. Eckardt, Max-Planck-Institut fuer Astronomie (Germany)
Otto Frenzl, ANTEC GmbH (Germany)
Ulrich Groezinger, Max-Planck-Institut fuer Astronomie (Germany)
Lou Hermans, IMEC (Belgium)
Gerd Jakob, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Reinhard O. Katterloher, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Albrecht Poglitsch, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Joost Seijnaeve, IMEC (Belgium)
Juergen Wolf, DLR Institut fuer Weltraumsensorik (Germany)


Published in SPIE Proceedings Vol. 3354:
Infrared Astronomical Instrumentation
Albert M. Fowler, Editor(s)

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