19 July 2016 The design and characterization of wideband spline-profiled feedhorns for Advanced ACTPol
Author Affiliations +
Abstract
Advanced ACTPol (AdvACT) is an upgraded camera for the Atacama Cosmology Telescope (ACT) that will measure the cosmic microwave background in temperature and polarization over a wide range of angular scales and five frequency bands from 28-230 GHz. AdvACT will employ four arrays of feedhorn-coupled, polarization- sensitive multichroic detectors. To accommodate the higher pixel packing densities necessary to achieve Ad- vACT’s sensitivity goals, we have developed and optimized wideband spline-profiled feedhorns for the AdvACT multichroic arrays that maximize coupling efficiency while carefully controlling polarization systematics. We present the design, fabrication, and testing of wideband spline-profiled feedhorns for the multichroic arrays of AdvACT.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sara M. Simon, Jason Austermann, James A. Beall, Steve K Choi, Kevin P. Coughlin, Shannon M. Duff, Patricio A. Gallardo, Shawn W. Henderson, Felicity B. Hills, Shuay-Pwu Patty Ho, Johannes Hubmayr, Alec Josaitis, Brian J. Koopman, Jeff J. McMahon, Federico Nati, Laura Newburgh, Michael D. Niemack, Maria Salatino, Alessandro Schillaci, Benjamin L. Schmitt, Suzanne T. Staggs, Eve M. Vavagiakis, Jonathan Ward, Edward J. Wollack, "The design and characterization of wideband spline-profiled feedhorns for Advanced ACTPol", Proc. SPIE 9914, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII, 991416 (19 July 2016); doi: 10.1117/12.2233603; https://doi.org/10.1117/12.2233603
PROCEEDINGS
13 PAGES


SHARE
RELATED CONTENT

The Simons Array CMB polarization experiment
Proceedings of SPIE (July 20 2016)
Prime Cam a first light instrument for the CCAT...
Proceedings of SPIE (July 09 2018)
The POLARBEAR experiment
Proceedings of SPIE (September 24 2012)

Back to Top