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Use of high sensitivity bolometers for astronomy: Planck high frequency instrument

Lamarre, J. M., Piat, M., Ade, Peter A. R., Bock, J., De Bernardis, P., Giard, M., Lange, A., Murphy, A., Torre, J. P., Benoit, A., Bhatia, R., Bouchet, F. R., Maffei, B., Puget, J. L., Sudiwala, Rashmikant V. and Yourchenko, V. 2002. Use of high sensitivity bolometers for astronomy: Planck high frequency instrument. Presented at: 9th International Workshop on Low Temperature Detectors, Madison, WI, 22-27 July 2001. Published in: Porter, F. Scott, McCammon, Dan, Galeazzi, Massimiliano and Stahle, Caroline K. eds. Low Temperature Detectors : Ninth International Workshop on Low Temperature Detectors : Madison, Wisconsin, 22-27 July 2001 : LTD-9. AIP Conference Proceedings , vol. 605. Melville, NY: American Institute of Physics, p. 571. 10.1063/1.1457711

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Abstract

The Planck satellite is dedicated to the measurement of the anisotropy of the Cosmic Microwave Background (CMB) with unprecedented sensitivity and angular resolution. It is a project of the European Space Agency based on a wide international collaboration, including United States and Canadian laboratories. The detectors of its High Frequency Instrument (HFI) are bolometers cooled down to 100 mK. Their sensitivity will be limited by the photon noise of the CMB itself at low frequencies, and of the instrument background at high frequencies. The requirements on the measurement chain are directly related to the strategy of observation used for the satellite. This impacts the bolometer design as well as other elements: The cooling system must present outstanding temperature stability, and the amplification chain must show a flat noise spectrum down to very low frequencies.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Publisher: American Institute of Physics
ISBN: 0735400490
ISSN: 0094243X
Last Modified: 04 Jun 2017 06:27
URI: http://orca.cf.ac.uk/id/eprint/60205

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