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The SPICA-SAFARI TES bolometer readout: developments towards a flight system

van der Kuur, J., Beyer, J., Bruijn, M., Gao, J. R., den Hartog, R., Heijmering, R., Hoevers, H., Jackson, B., Leeuwen, B. J., Lindeman, M., Kirivanta, M., Korte, P., Mauskopf, Philip Daniel, Korte, P., Weers, H. and Withington, S. 2012. The SPICA-SAFARI TES bolometer readout: developments towards a flight system. Journal of Low Temperature Physics 167 (5-6) , pp. 561-567. 10.1007/s10909-012-0521-y

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SAFARI is an imaging Fourier Transform Spectrometer for 35–200 μm under development for flight on the Japanese IR-satellite SPICA (2018). The 3.25 m diameter actively cooled telescope (<6K) will provide a sky background limited signal, which implies that detectors will need to have an NEP of 3.5 ·10-19 W/Ö{Hz}3510−19 W/Hz in order not to be limiting the sensitivity. The instrument will utilize three TES-based detector arrays, covering the 2×2 arcmin field-of-view in three octaves of wave length. This contribution will present an overview of the detector sub-system, i.e.: the detector arrays and radiation coupling, the focal plane assembly, the amplification chain and the frequency-domain- multiplexed electronics. The focus will be on the implications on the system design of the readout under the stringent power dissipation, heat load, and weight limitations.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: Multiplexing, FDM, TES
Publisher: SpringerLink
ISSN: 0022-2291
Last Modified: 23 Jan 2020 03:49

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