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Ultra-sensitive transition-edge sensors for the Background Limited Infrared/Sub-mm Spectrograph (BLISS)

Show simple item record Beyer, A. D. Kenyon, M. E. Echternach, P. M. Chui, T. Eom, B.-H. Day, P. K. Bock, J. J. Holmes, W.A. Bradford, C. M. 2012-09-26T20:16:22Z 2012-09-26T20:16:22Z 2011-08-01
dc.identifier.citation 14th Meeting on Low Temperature Detectors, Heidelberg, Germany, August 1-5,2011 en_US
dc.identifier.clearanceno 11-5448
dc.description.abstract We report progress in fabricating ultra-sensitive superconducting transition-edge sensors (TESs) for BLISS. BLISS is a suite of grating spectrometers covering 35-433μm with R~700 cooled to 50mK that is proposed to fly on the Japanese space telescope SPICA. The detector arrays for BLISS are TES bolometers readout with a time domain SQUID multiplexer. The required noise equivalent power (NEP) for BLISS is NEP=10-19 W/Hz1/2 with an ultimate goal of NEP= 5 × 10-20 W/Hz1/2 to achieve background limited noise performance. The required and goal response times are τ=150ms and τ=50ms respectively to achieve the NEP at the required and goal optical chop frequency 1-5Hz. We measured prototype BLISS arrays and have achieved NEP=6 × 10-18 W/Hz1/2 and τ=1.4ms with a Ti TES (TC=565mK) and NEP~2.5 × 10-19 W/Hz1/2 and τ~4.5ms with an Ir TES (TC=130mK). Dark power for these tests is estimated at 1-5fW. PACS numbers: 85.25.Pb; 95.85.Gn; 95.85.Fm; 63.22.+m en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011. en_US
dc.subject transition-edge sensors (TESs) en_US
dc.title Ultra-sensitive transition-edge sensors for the Background Limited Infrared/Sub-mm Spectrograph (BLISS) en_US
dc.type Preprint en_US
dc.subject.NASATaxonomy Spacecraft Instrumentation and Astrionics en_US

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