Reeves, R. (2012) QUIET Coherent Polarimeter Modules. Journal of Low Temperature Physics, 167 (5-6). pp. 929-935. ISSN 0022-2291. https://resolver.caltech.edu/CaltechAUTHORS:20120601-115651739
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Abstract
The Q/U Imaging ExperimenT (QUIET) consists of a pair of radiometer arrays designed to measure the B-mode polarization of the Cosmic Microwave Background (CMB) at 44 GHz (Q-band) and 95 GHz (W-band) with 19 and 90 modules at each frequency. The architecture of both arrays is based on miniaturized coherent polarimeters using High Electron Mobility Transistor (HEMT) chips for amplification; QUIET is the largest coherent microwave array ever fielded. We describe the detector technology used in Phase I of QUIET and our efforts to improve both the W-band module design and the fundamental performance of the HEMT amplifiers. These technology developments have wide application in the field of radio astronomy.
| Item Type: | Article | |||||||||
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| Additional Information: | © 2012 Springer Science+Business Media, LLC. Received: 31 July 2011; Accepted: 2 January 2012; Published online: 21 January 2012. | |||||||||
| Group: | Keck Institute for Space Studies | |||||||||
| Subject Keywords: | CMB polarization; Coherent microwave receivers; Cryogenic amplifiers | |||||||||
| Issue or Number: | 5-6 | |||||||||
| Record Number: | CaltechAUTHORS:20120601-115651739 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20120601-115651739 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 31778 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Jason Perez | |||||||||
| Deposited On: | 01 Jun 2012 21:15 | |||||||||
| Last Modified: | 03 Oct 2019 03:54 |
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