A Caltech Library Service

The Allen Telescope Array

DeBoer, David and Welch, William J. and Dreher, John and Tarter, Jill and Blitz, Leo and Davis, Michael and Fleming, Matt and Bock, Douglas and Bower, Geoffrey and Lugten, John and Girmay-Keleta, G. and D'Addario, Larry and Harp, Gerry and Ackermann, Rob and Weinreb, Sander and Engargiola, Greg and Thornton, Douglas and Wadefalk, Niklas (2004) The Allen Telescope Array. In: Ground-based Telescopes. Proceedings of SPIE. No.5489. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 1021-1028. ISBN 9780819454218.

[img] PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


The Allen Telescope Array, originally called the One Hectare Telescope (1hT) [1] will be a large array radio telescope whose novel characteristics will be a wide field of view (3.5 deg-GHz HPBW), continuous frequency coverage of 0.5 - 11 GHz, four dual-linear polarization output bands of 100 MHz each, four beams in each band, two 100 MHz spectral correlators for two of the bands, and hardware for RFI mitigation built in. Its scientific motivation is for deep SETI searches and, at the same time, a variety of other radio astronomy projects, including transient (e.g. pulsar) studies, HI mapping of the Milky Way and nearby galaxies, Zeeman studies of the galactic magnetic field in a number of transitions, mapping of long chain molecules in molecular clouds, mapping of the decrement in the cosmic background radiation toward galaxy clusters, and observation of HI absorption toward quasars at redshifts up to z=2. The array is planned for 350 6.1-meter dishes giving a physical collecting area of about 10,000 square meters. The large number of components reduces the price with economies of scale. The front end receiver is a single cryogenically cooled MIMIC Low Noise Amplifier covering the whole band. The feed is a wide-band log periodic feed of novel design, and the reflector system is an offset Gregorian for minimum sidelobes and spillover. All preliminary and critical design reviews have been completed. Three complete antennas with feeds and receivers are under test, and an array of 33 antennas is under construction at the Hat Creek Radio Observatory for the end of 2004. The present plan is to have a total of about 200 antennas completed by the summer of 2006 and the balance of the array finished before the end of the decade.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Blitz, Leo0000-0002-4272-4432
Bower, Geoffrey0000-0003-4056-9982
Weinreb, Sander0000-0002-9353-6204
Additional Information:© 2004 Society of Photo-Optical Instrumentation Engineers (SPIE). The authors wish to acknowledge the support of the Paul G. Allen Charitable Foundations.
Funding AgencyGrant Number
Paul G. Allen Charitable FoundationsUNSPECIFIED
Subject Keywords:Radio astronomy, antenna arrays
Series Name:Proceedings of SPIE
Issue or Number:5489
Record Number:CaltechAUTHORS:20180801-133517163
Persistent URL:
Official Citation:David R. DeBoer, William J. Welch, John Dreher, Jill Tarter, Leo Blitz, Michael Davis, Matt Fleming, Douglas Bock, Geoffrey Bower, John Lugten, G. Girmay-Keleta, Larry R. D'Addario, Gerry R. Harp, Rob Ackermann, Sander Weinreb, Greg Engargiola, Doug Thornton, Niklas Wadefalk, "The Allen Telescope Array", Proc. SPIE 5489, Ground-based Telescopes, (28 September 2004); doi: 10.1117/12.551737;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88464
Deposited By: George Porter
Deposited On:01 Aug 2018 23:09
Last Modified:16 Nov 2021 00:27

Repository Staff Only: item control page