Advanced pseudo-correlation radiometers for the Planck-LFI instrument

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dc.creatorMennella, A.
dc.creatorBersanelli, M.
dc.creatorButler, R. C.
dc.creatorMaino, D.
dc.creatorMandolesi, N.
dc.creatorMorgante, G.
dc.creatorValenziano, L.
dc.creatorVilla, F.
dc.creatorGaier, T.
dc.creatorSeiffert, M.
dc.creatorLevin, S.
dc.creatorLawrence, C.
dc.creatorMeinhold, P.
dc.creatorLubin, P.
dc.creatorTuovinen, J.
dc.creatorVaris, J.
dc.creatorKarttaavi, T.
dc.creatorHughes, N.
dc.creatorJukkala, P.
dc.creatorSjman, P.
dc.creatorKangaslahti, P.
dc.creatorRoddis, N.
dc.creatorKettle, D.
dc.creatorWinder, F.
dc.creatorBlackhurst, E.
dc.creatorDavis, R.
dc.creatorWilkinson, A.
dc.creatorCastelli, C.
dc.creatorAja, B.
dc.creatorArtal, E.
dc.creatorde la Fuente, L.
dc.creatorMediavilla, A.
dc.creatorPascual, J. P.
dc.creatorGallegos, J.
dc.creatorMartinez-Gonzalez, E.
dc.creatorde Paco, P.
dc.creatorPradell, L.
dc.date2003-07-07
dc.date.accessioned2026-07-07T02:08:55Z
dc.date.available2026-07-07T02:08:55Z
dc.descriptionThe LFI (Low Frequency Instrument) on board the ESA Planck satellite is constituted by an array of radiometric detectors actively cooled at 20 K in the 30-70 GHz frequency range in the focal plane of the Planck telescope. In this paper we present an overview of the LFI instrument, with a particular focus on the radiometer design. The adopted pseudo-correlation scheme uses a software balancing technique (with a tunable parameter called gain modulation factor) which is effective in reducing the radiometer susceptibility to amplifier instabilities also in presence of small non-idealities in the radiometric chain components, provided that the gain modulation factor is estimated with an accuracy of the order of 0.2%. These results have been recently confirmed by experimental laboratory measurements conducted on the LFI prototype radiometers at 30, 70 and 100 GHz.
dc.description6 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0307116
dc.identifierhttp://arxiv.org/abs/astro-ph/0307116
dc.identifierProc 3rd ESA Workshop on millimetre wave technology and applications (ESPOO, 21-23 May 2003), Page 69
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/6247
dc.subjectAstrophysics
dc.titleAdvanced pseudo-correlation radiometers for the Planck-LFI instrument
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