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CHAMP+: A powerful submm Heterodyne Array

  • To make best use of the exceptional good weather conditions at Chajnantor we developed CHAMP+, a two time seven pixel dual-color heterodyne array for operation in the 350 and 450 µm atmospheric windows. CHAMP+ uses state-of-the-art SIS-mixers provided by our collaborators at SRON. To maximize its performance, optical single sideband filter are implemented for each of the two subarrays, and most of the optics is operated cold (20K) to minimize noise contributions. The instrument can be operated remotely, under full computer control of all components. The autocorrelator backend, currently in operation with 2 × 1GHz of bandwidth for each of the 14 heterodyne channels, will be upgraded by a new technologies FFT spectrometer array in mid 2008. CHAMP+ has been commissioned successfully in late 2007. We will review the performance of the instrument "in the field," and present its characteristics as measured on-sky.

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Metadaten
Document Type:Conference Object
Language:English
Author:C. Kasemann, S. Heyminck, A. Bell, A. Belloche, C. Castenholz, R. Güsten, H. Hafok, A. Henseler, S. Hochgürtel, B. Klein, T. Klein, I. Krämer, A. Korn, K. Meyer, D. Muders, F. Pacek, F. Schäafer, G. Schneider, G. Wieching, A. Baryshev, R. Hesper, T. Zijlstra, C. F. J. Lodewijk, T. M. Klapwijk
Parent Title (English):Wild (Ed.): Proceedings of the 19th International Symposium on Space Terahertz Technology. Groningen, April 28-30, 2008
First Page:166
Last Page:172
URL:https://library.nrao.edu/isstt/catalog/2008166172
Publication year:2008
Dewey Decimal Classification (DDC):5 Naturwissenschaften und Mathematik / 52 Astronomie / 520 Astronomie und zugeordnete Wissenschaften
Entry in this database:2015/10/09