Planck-LFI radiometers tuning

doi:10.1088/1748-0221/4/12/T12013

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Journal of Instrumentation Volume 4 December 2009 Create an alert RSS this journal

F Cuttaia et al 2009 JINST 4 T12013 doi:10.1088/1748-0221/4/12/T12013

Planck-LFI radiometers tuning

OPEN ACCESS The Planck Low Frequency Instrument

F Cuttaia^a, A Mennella^b, L Stringhetti^a, M Maris^c, L Terenzi^a, M Tomasi^b, F Villa^a, M Bersanelli^b, R C Butler^a, B Cappellini^b, L P Cuevas^j, O D'Arcangelo^d, R Davis^g, M Frailis^c, C Franceschet^b, E Franceschi^a, A Gregorio^e, R Hoyland^b, R Leonardi^f, S Lowe^g, N Mandolesi^a, P Meinhold^f, L Mendesⁱ, N Roddis^g, M Sandri^a, L Valenziano^a, A Wilkinson^g, A Zacchei^c, A Zonca^b, P Battaglia^h, S De Nardo^h, S Grassi^h, M Lapolla^h, P Leutenegger^h, M Miccolis^h and R Silvestri^h

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cuttaia@iasfbo.inaf.it

^a Istituto di Astrofisica Spaziale e Fisica Cosmica, INAF, via P. Gobetti 101, 40129 Bologna, Italy
^b Università degli Studi di Milano, via Celoria 16, 20133 Milano, Italy
^c INAF / OATS, via Tiepolo 11, 34143 Trieste, Italy
^d IFP-CNR, via Cozzi 53, 20013 Milano, Italy
^e University of Trieste, Department of Physics, via Valerio 2, 34127 Trieste, Italy
^f Department of Physics, University of California, Santa Barbara, CA 93106-9530, USA
^g Jodrell Bank Centre for Astrophysics, Alan Turing Building, The University of Manchester, Manchester, M13 9PL, UK
^h Thales Alenia Space Italia S.p.A., IUEL - Scientific Instruments, S.S. Padana Superiore 290, 20090 Vimodrone Milano, Italy
ⁱ Planck Science Office, European Space Agency, ESAC, P.O. box 78, 28691 Villanueva de la Cañada, Madrid, Spain
^j Research and Scientific Support Department of ESA, ESTEC, Noordwijk, The Netherlands

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Abstract References Cited By

Part of The Planck Low Frequency Instrument

This paper describes the Planck Low Frequency Instrument tuning activities performed through the ground test campaigns, from Unit to Satellite Levels. Tuning is key to achieve the best possible instrument performance and tuning parameters strongly depend on thermal and electrical conditions. For this reason tuning has been repeated several times during ground tests and it has been repeated in flight before starting nominal operations. The paper discusses the tuning philosophy, the activities and the obtained results, highlighting developments and changes occurred during test campaigns. The paper concludes with an overview of tuning performed during the satellite cryogenic test campaign (Summer 2008) and of the plans for the just started in-flight calibration.

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