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Overview of the Atacama Cosmology Telescope: receiver, instrumentation, and telescope systems

Swetz, D. S., Ade, Peter A. R., Amiri, M., Appel, J. W., Battistelli, E. S., Burger, B., Chervenak, J., Devlin, M. J., Dicker, S. R., Doriese, W. B., Dünner, R., Essinger-Hileman, T., Fisher, R. P., Fowler, J. W., Halpern, M., Hasselfield, M., Hilton, G. C., Hincks, A. D., Irwin, K. D., Jarosik, N., Kaul, M., Klein, J., Lau, J. M., Limon, M., Marriage, T. A., Marsden, D., Martocci, K., Mauskopf, Philip Daniel, Moseley, H., Netterfield, C. B., Niemack, M. D., Nolta, M. R., Page, L. A., Parker, L., Staggs, S. T., Stryzak, O., Switzer, E. R., Thornton, R., Tucker, Carole Elizabeth, Wollack, E. and Zhao, Y. 2011. Overview of the Atacama Cosmology Telescope: receiver, instrumentation, and telescope systems. The Astrophysical Journal Supplement Series 194 (2) , 41. 10.1088/0067-0049/194/2/41

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Abstract

The Atacama Cosmology Telescope was designed to measure small-scale anisotropies in the cosmic microwave background and detect galaxy clusters through the Sunyaev-Zel'dovich effect. The instrument is located on Cerro Toco in the Atacama Desert, at an altitude of 5190 m. A 6 m off-axis Gregorian telescope feeds a new type of cryogenic receiver, the Millimeter Bolometer Array Camera. The receiver features three 1000-element arrays of transition-edge sensor bolometers for observations at 148 GHz, 218 GHz, and 277 GHz. Each detector array is fed by free space millimeter-wave optics. Each frequency band has a field of view of approximately 22' × 26'. The telescope was commissioned in 2007 and has completed its third year of operations. We discuss the major components of the telescope, camera, and related systems, and summarize the instrument performance.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: cosmic background radiation; cosmology: observations; instrumentation: detectors; instrumentation: miscellaneous; telescopes
Publisher: Institute of Physics
ISSN: 0067-0049
Last Modified: 04 Jun 2017 03:32
URI: http://orca-mwe.cf.ac.uk/id/eprint/22583

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