Characterization of a prototype SCUBA-2 1280-pixel submillimetre superconducting bolometer array

• DOI: 10.1117/12.671310
• Publication Date: 2006-07-10T14:09:21Z
• Authors: Adam L. Woodcraft; Matthew I. Hollister; Dan Bintley; Maureen A. Ellis; Xiaofeng Gao; Wayne S. Holland; Michael J. MacIntosh; Peter A. R. Ade; Julian S. House; Cynthia L. Hunt; Rashmi V. Sudiwala; William D. Duncan; Gene C. Hilton; Kent D. Irwin; Carl D. Reintsema; Camelia C. Dunare; William Parkes; Anthony J. Walton; Jan B. Kycia; Mandana Amiri; Bryce Burger; Mark Halpern
• Keywords: Characterization

We present the results of characterization measurements on a 1280 pixel superconducting bolometer array designed for operation at wavelengths around 450 μm. The is prototype sub-arrays which will form focal plane SCUBA-2 sub-mm camera, being built James Clerk Maxwell Telescope (JCMT) in Hawaii. With over 10 000 pixels total, it provide huge improvement both sensitivity and mapping speed existing instruments. consists molybdenum-copper bi-layer TES (transition edge sensor) pixels, bonded to multiplexer. detectors operate temperature approximately 175 mK, require heat sink 60 mK. In contrast previous arrays, multiplexing elements are located beneath each (an "in-focal plane" configuration). electrical optical measurements, show that NEP (noise equivalent power) less than 1.4 × 10^-16 W Hz^-0.5 thus within goal 1.5 Hz^-0.5.