Feedhorn-coupled TES polarimeter camera modules at 150 GHz for CMB polarization measurements with SPTpol
- Holland, Wayne S.
- Henning, J. W.
- Ade, Peter A. R.
- Aird, K. A.
- Austermann, J. E.
- Beall, J. A.
- Becker, D.
- Benson, B. A.
- Bleem, L. E.
- Britton, J.
- Carlstrom, J. E.
- Chang, C. L.
- Cho, H.-M.
- Crawford, T. M.
- Crites, A. T.
- Datesman, A.
- de Haan, T.
- Dobbs, M A.
- Everett, W.
- Ewall-Wice, A.
- George, E. M.
- Halverson, N. W.
- Harrington, N.
- Hilton, G. C.
- Holzapfel, W. L.
- Hubmayr, J.
- Irwin, K. D.
- Karfunkle, M.
- Keisler, R.
- Kennedy, J.
- Lee, A. T.
- Leitch, E.
- Li, D.
- Lueker, M.
- Marrone, D. P.
- McMahon, J. J.
- Mehl, J.
- Meyer, S. S.
- Montgomery, J.
- Montroy, T. E.
- Nagy, J.
- Natoli, T.
- Nibarger, J. P.
- Niemack, M. D.
- Novosad, V.
- Padin, S.
- Pryke, C.
- Reichardt, C. L.
- Ruhl, J. E.
- Saliwanchik, B. R.
- Sayre, J. T.
- Schaffer, K. K.
- Shirokoff, E.
- Story, K.
- Tucker, Carole
- Vanderlinde, K.
- Vieira, J. D.
- Wang, G.
- Williamson, R.
- Yefremenko, V.
- Yoon, K. W.
- Young, E.
DOIAbstract
The SPTpol camera is a dichroic polarimetric receiver at 90 and 150 GHz. Deployed in January 2012 on the South Pole Telescope (SPT), SPTpol is looking for faint polarization signals in the Cosmic Microwave Background (CMB). The camera consists of 180 individual Transition Edge Sensor (TES) polarimeters at 90 GHz and seven 84-polarimeter camera modules (a total of 588 polarimeters) at 150 GHz. We present the design, dark characterization, and in-lab optical properties of the 150 GHz camera modules. The modules consist of photolithographed arrays of TES polarimeters coupled to silicon platelet arrays of corrugated feedhorns, both of which are fabricated at NIST-Boulder. In addition to mounting hardware and RF shielding, each module also conta...
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