Print Email Facebook Twitter Performance of a low-noise test facility for the SAFARI TES bolometer arrays Title Performance of a low-noise test facility for the SAFARI TES bolometer arrays Author Audley, M.D. De Lange, G. Ferrari, L. Gao, J.R. Hijmering, R.A. Khosropanah, P. Lindeman, M. Ridder, M.L. Faculty Applied Sciences Department Kavli Institute of NanoScience Date 2012-01-20 Abstract We have constructed a test facility for characterizing the focal plane arrays of SAFARI, the far-infrared imaging spectrometer for the SPICA satellite. SAFARI’s three bolometer arrays are populated with extremely sensitive (NEP ? 2 × 10?19 W/? Hz) transition edge sensors with a transition temperature close to 100 mK. The extreme sensitivity and low saturation power (?4 fW) of SAFARI’s detectors present challenges to characterizing them. In optimizing the SAFARI Detector System Test Facility we have paid careful attention to stray-light exclusion as well as electrical, magnetic, and mechanical isolation.We present measurements verifying the facility’s performance and analyze them in terms of a two-fluid model of the TES current on the transition to investigate the background power level. We have measured a detector NEP of (5.1 ± 0.4) × 10?19 WHz?1/2, showing that the facility is ready to test the SAFARI prototype arrays and is approaching the performance needed for testing the flight arrays. Subject transition edge sensor · bolometer · testing To reference this document use: http://resolver.tudelft.nl/uuid:1c616aac-5d5c-45f8-8fbd-4cbdcbb7d27b DOI https://doi.org/10.1007/s10909-012-0492-z Publisher Springer ISSN 0022-2291 Source http://www.springerlink.com/content/y66h2654746136k7/ Source Journal of low temperature physics, 167(Apr)2012 Part of collection Institutional Repository Document type journal article Rights (c)2012 Springer-Verlag Files PDF 2012-28Audley.pdf 785.06 KB Close viewer /islandora/object/uuid:1c616aac-5d5c-45f8-8fbd-4cbdcbb7d27b/datastream/OBJ/view