Abstract
The Millimeter Bolometer Array Camera (MBAC) will be installed on the 6-meter Atacama Cosmology Telescope (ACT) in late 2007. For the first season of observations, MBAC will comprise a 145 GHz diffraction-limited, 1024-pixel, focal plane array of Transition Edge Sensor (TES) Bolometers. This will be the largest array of pop-up-detector bolometers ever fielded as well as one of the largest arrays of TES bolometers. We discuss the design specifications for the array and pre-assembly testing procedures for the cryogenic components. We present dark measurements of the TES bolometer properties of numerous 32-pixel columns that have been assembled into the first kilopixel array for ACT, as well as optical measurements made with our 256-pixel prototype array, including first light measurements on ACT.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 690-696 |
| Number of pages | 7 |
| Journal | Journal of Low Temperature Physics |
| Volume | 151 |
| Issue number | 3-4 PART 2 |
| DOIs | |
| State | Published - May 2008 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
- General Materials Science
- Condensed Matter Physics
Keywords
- Astrophysics
- Bolometer
- Cosmology
- Detector array
- TES
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