Thermal susceptibility of the Planck-LFI receivers

This paper is part of the Prelaunch status LFI papers published on JINST: http://www.iop.org/EJ/journal/-page=extra.proc5/jinst . This paper describes the impact of the Planck Low Frequency Instrument front end physical temperature fluctuations on the output signal. The origin of thermal instabiliti...

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Bibliographic Details
Published in:arXiv.org 2010-01
Main Authors: Terenzi, L, Salmon, M J, Colin, A, Mennella, A, Morgante, G, Tomasi, M, Battaglia, P, Lapolla, M, Bersanelli, M, Butler, R C, Cuttaia, F, D'Arcangelo, O, Davis, R, Franceschet, C, Galeotta, S, Gregorio, A, Hughes, N, Jukkala, P, Kettle, D, Laaninen, M, Leutenegger, P, Leonardi, R, Mandolesi, N, Maris, M, Meinhold, P, Miccolis, M, Roddis, N, Sambo, L, Sandri, M, Silvestri, R, Tuovinen, J, Valenziano, L, Varis, J, Villa, F, Wilkinson, A, Zonca, A
Format: Article
Language:English
Subjects:
Data analysis
Mathematical models
Receivers
Thermal instability
Variations
Online Access:Get full text
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Summary:This paper is part of the Prelaunch status LFI papers published on JINST: http://www.iop.org/EJ/journal/-page=extra.proc5/jinst . This paper describes the impact of the Planck Low Frequency Instrument front end physical temperature fluctuations on the output signal. The origin of thermal instabilities in the instrument are discussed, and an analytical model of their propagation and impact on the receivers signal is described. The experimental test setup dedicated to evaluate these effects during the instrument ground calibration is reported together with data analysis methods. Finally, main results obtained are discussed and compared to the requirements.
ISSN:2331-8422
DOI:10.48550/arxiv.1001.4653