19 July 2016 Mechanical designs and development of TES bolometer detector arrays for the Advanced ACTPol experiment
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The next generation Advanced ACTPol (AdvACT) experiment is currently underway and will consist of four Transition Edge Sensor (TES) bolometer arrays, with three operating together, totaling ~ 5800 detectors on the sky. Building on experience gained with the ACTPol detector arrays, AdvACT will utilize various new technologies, including 150 mm detector wafers equipped with multichroic pixels, allowing for a more densely packed focal plane. Each set of detectors includes a feedhorn array of stacked silicon wafers which form a spline profile leading to each pixel. This is then followed by a waveguide interface plate, detector wafer, back short cavity plate, and backshort cap. Each array is housed in a custom designed structure manufactured from high purity copper and then gold plated. In addition to the detector array assembly, the array package also encloses cryogenic readout electronics. We present the full mechanical design of the AdvACT high frequency (HF) detector array package along with a detailed look at the detector array stack assemblies. This experiment will also make use of extensive hardware and software previously developed for ACT, which will be modified to incorporate the new AdvACT instruments. Therefore, we discuss the integration of all AdvACT arrays with pre-existing ACTPol infrastructure.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jonathan T. Ward, Jonathan T. Ward, Jason Austermann, Jason Austermann, James A. Beall, James A. Beall, Steve K. Choi, Steve K. Choi, Kevin T. Crowley, Kevin T. Crowley, Mark J. Devlin, Mark J. Devlin, Shannon M. Duff, Shannon M. Duff, Patricio A. Gallardo, Patricio A. Gallardo, Shawn W. Henderson, Shawn W. Henderson, Shuay-Pwu Patty Ho, Shuay-Pwu Patty Ho, Gene Hilton, Gene Hilton, Johannes Hubmayr, Johannes Hubmayr, Niloufar Khavari, Niloufar Khavari, Jeffrey Klein, Jeffrey Klein, Brian J. Koopman, Brian J. Koopman, Dale Li, Dale Li, Jeffrey McMahon, Jeffrey McMahon, Grace Mumby, Grace Mumby, Federico Nati, Federico Nati, Michael D. Niemack, Michael D. Niemack, Lyman A. Page, Lyman A. Page, Maria Salatino, Maria Salatino, Alessandro Schillaci, Alessandro Schillaci, Benjamin L. Schmitt, Benjamin L. Schmitt, Sara M. Simon, Sara M. Simon, Suzanne T. Staggs, Suzanne T. Staggs, Robert Thornton, Robert Thornton, Joel N. Ullom, Joel N. Ullom, Eve M. Vavagiakis, Eve M. Vavagiakis, Edward J. Wollack, Edward J. Wollack, } "Mechanical designs and development of TES bolometer detector arrays for the Advanced ACTPol experiment", Proc. SPIE 9914, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII, 991437 (19 July 2016); doi: 10.1117/12.2233746; https://doi.org/10.1117/12.2233746

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