The Atacama Cosmology Telescope: The Receiver and Instrumentation
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 meters. A six-meter 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 mm-wave optics. Each frequency band has a field of view of approximately 22' x 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.
Keywords
Cite
@article{arxiv.1007.0290,
title = {The Atacama Cosmology Telescope: The Receiver and Instrumentation},
author = {D. S. Swetz and P. A. R. Ade and M. Amiri and J. W. Appel and E. S. Battistelli and B. Burger and J. Chervenak and M. J. Devlin and S. R. Dicker and W. B. Doriese and R. Dünner and T. Essinger-Hileman and R. P. Fisher and J. W. Fowler and M. Halpern and M. Hasselfield and G. C. Hilton and A. D. Hincks and K. D. Irwin and N. Jarosik and M. Kaul and J. Klein and J. M. Lau and M. Limon and T. A. Marriage and D. Marsden and K. Martocci and P. Mauskopf and H. Moseley and C. B. Netterfield and M. D. Niemack and M. R. Nolta and L. A. Page and L. Parker and S. T. Staggs and O. Stryzak and E. R. Switzer and R. Thornton and C. Tucker and E. Wollack and Y. Zhao},
journal= {arXiv preprint arXiv:1007.0290},
year = {2011}
}
Comments
16 pages, 10 figures, submitted to ApJ Supplemental