Instrument design and characterization of the Millimeter Bolometer Array Camera on the Atacama Cosmology Telescope
- Swetz, D. S.
- Ade, Peter A. R.
- Allen, C.
- Amiri, M.
- Appel, J. W.
- Battistelli, E. S.
- Burger, B.
- Chervenak, J. A.
- Dahlen, A. J.
- Das, S.
- Denny, S.
- Devlin, M. J.
- Dicker, S. R.
- Doriese, W. B.
- Dünner, R.
- Essinger-Hileman, T.
- Fisher, R. P.
- Fowler, J. W.
- Gao, X.
- Hajian, A.
- Halpern, M.
- Hargrave, Peter Charles
- Hasselfield, M.
- Hilton, G. C.
- Hincks, A. D.
- Irwin, K. D.
- Jarosik, N.
- Kaul, M.
- Klein, J.
- Knotek, S.
- Lau, J. M.
- Limon, M.
- Lupton, R. H.
- Marriage, T. A.
- Martocci, K. L.
- Mauskopf, Philip Daniel
- Moseley, S. H.
- Netterfield, C. B.
- Niemack, M. D.
- Nolta, M. R.
- Page, L.
- Parker, L. P.
- Reid, B. A.
- Reintsema, C. D.
- Sederberg, A. J.
- Sehgal, N.
- Sievers, J. L.
- Spergel, D. N.
- Staggs, S. T.
- Stryzak, O. R.
- Switzer, E. R.
- Thornton, R. J.
- Tucker, Carole
- Wollack, E. J.
- Zhao, Y.
DOIAbstract
The Millimeter Bolometer Array Camera (MBAC) was commissioned in the fall of 2007 on the new 6-meterAtacama Cosmology Telescope (ACT). The MBAC on the ACT will map the temperature anisotropies of theCosmic Microwave Background (CMB) with arc-minute resolution. For this first observing season, the MBACcontained a diffraction-limited, 32 by 32 element, focal plane array of Transition Edge Sensor (TES) bolometersfor observations at 145 GHz. This array was coupled to the telescope with a series of cold, refractive, reimagingoptics. To meet the performance specifications, the MBAC employs four stages of cooling using closed-cycle3He/4He sorption fridge systems in combination with pulse tube coolers. In this paper we present the design ofthe inst...
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