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| HAL : in2p3-00189826, version 1 |
| Code Bibliographique ADS : 2006NIMPA.559..588P |
| DOI : 10.1016/J.NIMA.2005.12.076 |
| Fiche détaillée |  Récupérer au format |
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| 11th International Workshop on Low Temperature Detectors - LTD-11, Tokyo : Japon (2005) |
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| Modeling of Planck-high frequency instrument bolometers using non-linear effects in the thermometers |
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| M. Piat1J.-P. Torre2E. Bréelle1A. Coulais3A. WoodcraftW. HolmesR. Sudiwala |
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| PLANCK, PLANCK-HFI Collaboration(s) |
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| (2006) |
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| The Planck satellite, which is planned to be launched in 2007, is dedicated to surveying the Cosmic Microwave Background (CMB) to a high precision. Aboard this mission, the High-Frequency Instrument (HFI) will use 52 NTD Ge spiderweb bolometers made by Caltech-JPL and cooled to 100 mK by a dilution cooler. In this paper, we present a model of these detectors that includes non-linear effects seen in NTD Ge thermometers: electron-phonon decoupling and electrical field effect. We show that this model leads to consider only electrical field effect. Furthermore, the optical characterization of the HFI bolometers clearly shows a non-ideal behavior that is explained by non-linear effects in the thermometer. We finally show that these effects have to be taken into account for optimized CMB observations and to fully understand the physics of semi-conducting bolometers. |
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| 1 : | APC - AstroParticule et Cosmologie |
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| 2 : | SA - Service d'aéronomie |
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| 3 : | LERMA - Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique |
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| APC - Cosmologie et Gravitation |
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| Thème(s) | : | Physique/Astrophysique/Cosmologie et astrophysique extra-galactique Planète et Univers/Astrophysique/Cosmologie et astrophysique extra-galactique Planète et Univers/Astrophysique |
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| Spider web bolometer – Planck HFI – Electrical field effect – Electron-phonon decoupling effect |
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| in2p3-00189826, version 1 | |
| http://hal.in2p3.fr/in2p3-00189826 | |
| oai:hal.in2p3.fr:in2p3-00189826 | |
| Contributeur : Simone Lantz | |
| Soumis le : Jeudi 22 Novembre 2007, 14:12:01 | |
| Dernière modification le : Vendredi 10 Août 2012, 13:22:43 | |
