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http://hdl.handle.net/20.500.12386/34982
Titolo: | Planck-LFI CPV: Drain currents verification after HYM Tuning | Autori: | CUTTAIA, FRANCESCO TERENZI, LUCA Bersanelli, Marco GREGORIO, Anna Leonardi. Rodrigo Meinhold, Peter TAVAGNACCO, Daniele Tomasi, Maurizio BATTAGLIA, Paola Maria Davis, Richard DE ROSA, Adriano Giuseppe FRAILIS, Marco Franceschet, Cristian FRANCESCHI, ENRICO GALEOTTA, Samuele Lowe, Stuart Mandolesi, NAZZARENO MARIS, Michele Mendes, Luis MENNELLA, ANIELLO MORGANTE, GIANLUCA Pearson, Dave Poutanen, Torsti SANDRI, MAURA VALENZIANO, Luca VILLA, Fabrizio Wilkinson, Althea ZACCHEI, Andrea Zonca, Andrea |
Data pubblicazione: | 2009 | Numero: | PL-LFI-PST-RP-085 | Abstract: | As for the same test performed before the Hyper matrix tuning (REF XXX) , this test was devoted to characterise the i-V response of LNAs when Vg1 and Vg2 are independently changed over a defined set of values. In particular , it is aimed at two main purposes: a) compare the radiometers i-V response with data acquired before Hyper Matrix Tuning: this check allows to sort out any possible problems related with the functionality of the LNAs, after the many bias changes characterizing the HYM Tuning procedure. b) Provide a detailed characterization of the radiometer response, with respect to bias changes, in the final operative conditions, that is when the optimal tuned bias are set. In fact, the accurate knowledge of the i-V curves could be useful in order to check, at any time of the Planck mission, possible changes in the radiometers response due to aging , bias fluctuation or to any other criticality. | URI: | http://hdl.handle.net/20.500.12386/34982 | Fulltext: | open |
È visualizzato nelle collezioni: | 4.03 Rapporti di progetto |
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