• DOI:10.1007/s10909-016-1575-z
• Corpus ID: 53411729

Advanced ACTPol Cryogenic Detector Arrays and Readout

@article{Henderson2015AdvancedAC,
  title={Advanced ACTPol Cryogenic Detector Arrays and Readout},
  author={Shawn Wesley Henderson and Rupert Allison and J. E. Austermann and Taylor Baildon and Nicholas Battaglia and J. A. Beall and Daniel T. Becker and Francesco de Bernardis and J. Richard Bond and Erminia Calabrese and Steve K. Choi and Kevin P. Coughlin and Kevin T. Crowley and Rahul Datta and Mark J. Devlin and Shannon M. Duff and Jo Dunkley and Rolando D{\"u}nner and Alexander van Engelen and Patricio A. Gallardo and Emily Grace and Matthew Hasselfield and Felicity B. Hills and G. C. Hilton and Adam D. Hincks and Ren{\'e}e Hlo{\vz}ek and S. P. Ho and Johannes Hubmayr and Kevin M. Huffenberger and John P. Hughes and Kent D. Irwin and Brian J. Koopman and Arthur B. Kosowsky and Dale Li and Jeff J. McMahon and Charles Munson and Federico Nati and Laura Newburgh and Michael D. Niemack and Prajwal Niraula and Lyman A. Page and Christine G. Pappas and Maria Salatino and Alessandro Schillaci and Benjamin L. Schmitt and Neelima Sehgal and Blake D. Sherwin and Jonathan Sievers and Sara M. Simon and David N. Spergel and Suzanne Staggs and Jason R. Stevens and Robert J. Thornton and Jeff van Lanen and Eve M. Vavagiakis and Jonathan T. Ward and Edward J. Wollack},
  journal={Journal of Low Temperature Physics},
  year={2015},
  volume={184},
  pages={772-779}
}

• S. Henderson, R. Allison, +54 authors Edward J. Wollack
• Published 9 October 2015
• Physics
• Journal of Low Temperature Physics

Advanced ACTPol is a polarization-sensitive upgrade for the 6 m aperture Atacama Cosmology Telescope, adding new frequencies and increasing sensitivity over the previous ACTPol receiver. In 2016, Advanced ACTPol will begin to map approximately half the sky in five frequency bands (28–230 GHz). Its maps of primary and secondary cosmic microwave background anisotropies—imaged in intensity and polarization at few arcminute-scale resolution—will enable precision cosmological constraints and also a wide array of cross-correlation science that probes the expansion history of the universe and the growth of structure via gravitational collapse. To accomplish these scientific goals, the Advanced ACTPol receiver will be a significant upgrade to the ACTPol receiver, including four new multichroic arrays of cryogenic, feedhorn-coupled AlMn transition edge sensor polarimeters (fabricated on 150 mm diameter wafers); a system of continuously rotating meta-material silicon half-wave plates; and a new multiplexing readout architecture which uses superconducting quantum interference devices and time division to achieve a 64-row multiplexing factor. Here we present the status and scientific goals of the Advanced ACTPol instrument, emphasizing the design and implementation of the Advanced ACTPol cryogenic detector arrays.