| Autor: |
Julian Steven House, Jan Kycia, Adam Woodcraft, Gene C. Hilton, Michael J. MacIntosh, Maureen A. Ellis, Mandana Amiri, Cynthia L. Hunt, Dan Bintley, William Parkes, William Duncan, Matthew I. Hollister, Carl D. Reintsema, Mark Halpern, Anthony J. Walton, Kent D. Irwin, Wayne S. Holland, R. V. Sudiwala, B. Burger, Xiaofeng Gao, Camelia Dunare, Peter A. R. Ade |
| Rok vydání: |
2006 |
| Předmět: |
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| Zdroj: |
SPIE Proceedings. |
| ISSN: |
0277-786X |
| DOI: |
10.1117/12.671310 |
| Popis: |
We present the results of characterization measurements on a 1280 pixel superconducting bolometer array designed for operation at wavelengths around 450 μm. The array is a prototype for the sub-arrays which will form the focal plane for the SCUBA-2 sub-mm camera, being built for the James Clerk Maxwell Telescope (JCMT) in Hawaii. With over 10 000 pixels in total, it will provide a huge improvement in both sensitivity and mapping speed over existing instruments. The array consists of molybdenum-copper bi-layer TES (transition edge sensor) pixels, bonded to a multiplexer. The detectors operate at a temperature of approximately 175 mK, and require a heat sink at a temperature of approximately 60 mK. In contrast to previous TES arrays, the multiplexing elements are located beneath each pixel (an "in-focal plane" configuration). We present the results of electrical and optical measurements, and show that the optical NEP (noise equivalent power) is less than 1.4 × 10-16 W Hz-0.5 and thus within the goal of 1.5 × 10-16 W Hz-0.5. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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