Authors: R den Hartog M D Audley J Beyer D Boersma M Bruijn L Gottardi H Hoevers R Hou G Keizer P Khosropanah M Kiviranta P de Korte J van der Kuur BJ van Leeuwen A C T Nieuwenhuizen P van Winden
Publish Date: 2012/02/09
Volume: 167, Issue: 5-6, Pages: 652-657
Abstract
SRON is developing an electronic readout system for an array of transition edge sensors TES based on the techniques of frequency domain multiplexing FDM and baseband feedback BBFB The astronomical applications of our system are the readout of soft Xray microcalorimeters in a potential instrument on the European Xray missionunderstudy Athena and farIR bolometers for the SAFARI instrument on the Japanese mission SPICA In this paper we demonstrate the simultaneous locking of up to 51 BBFB loops While locked the inband readout noise of the loops is shown to reach the mbox10~pA/sqrtmathrmHz level required for these missions
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