The Low Frequency Instrument (LFI) on-board the Planck satellite, is composed by an array of 54 receivers. They follow a pseudo-correlation scheme, continuously observing the sky and a stable reference load, at a temperature T ∼ 4 K. The so-called 4 K Reference Load is made of 54 small absorbing targets, mechanically and thermally connected to the High Frequency Instrument (HFI) cryostat. The 4K Reference Load requirements pose severe limits to its mass, dimensions, power dissipation and performance.
The 4K reference load for the Planck low frequency instrument / L. Valenziano, M. Bersanelli, R.C. Butler, F. Cuttaia, N. Mandolesi, A. Mennella, G. Morigi, G. Morgante, M. Sandri, L. Terenzi, F. Villa - In: Experimental cosmology at millimetre wavelengths : 2K1BC workshop Breuil-Cervinia (AO), Valle d'Aosta, Italy, 9-13 July 2001 / [a cura di] M. De Petris, M. Gervasi. - Melville : American institute of physics, 2002. - ISBN 0-7354-0062-8. - pp. 219-223 (( convegno Workshop on experimental cosmology at millimetre wavelenghts tenutosi a Breuil-Cervinia nel 2001 [10.1063/1.1475632].
The 4K reference load for the Planck low frequency instrument
M. BersanelliSecondo
;A. Mennella;F. VillaUltimo
2002
Abstract
The Low Frequency Instrument (LFI) on-board the Planck satellite, is composed by an array of 54 receivers. They follow a pseudo-correlation scheme, continuously observing the sky and a stable reference load, at a temperature T ∼ 4 K. The so-called 4 K Reference Load is made of 54 small absorbing targets, mechanically and thermally connected to the High Frequency Instrument (HFI) cryostat. The 4K Reference Load requirements pose severe limits to its mass, dimensions, power dissipation and performance.
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