The SPICA-SAFARI Detector System: TES Detector Arrays With Frequency-Division Multiplexed SQUID Readout

• Published in: IEEE transactions on terahertz science and technology Vol. 2; no. 1; pp. 12 - 21
• Main Authors: Jackson, B. D., de Korte, P. A. J., van der Kuur, J., Mauskopf, P. D., Beyer, J., Bruijn, M. P., Cros, A., Gao, J., Griffin, D., den Hartog, R., Kiviranta, M., de Lange, G., van Leeuwen, B., Macculi, C., Ravera, L., Trappe, N., van Weers, H., Withington, S.
• Format: Journal Article
• Language: English
• Published: IEEE 01.01.2012
• Subjects: Astrophysics; bolometers; Detectors; Frequency division multiplexing; Geometry; Sensitivity; SQUIDs; superconducting devices; system-level design; Telescopes
• ISSN: 2156-342X; 2156-3446; 2156-3446
• DOI: 10.1109/TTHZ.2011.2177705

The SAFARI instrument is a far-infrared imaging Fourier transform spectrometer for JAXA's SPICA mission. Taking advantage of the low emission of SPICA's 5 K telescope, SAFARI will provide sky background-limited, Nyquist-sampled spectroscopic imaging of a 2 ' × 2 ' field-of-view over 34-210 μm, creating significant new possibilities for far-infrared astronomy. SAFARI's aggressive science goals drive the development of a unique detector system combining large-format Transition Edge Sensor arrays and frequency division multiplexed SQUID readout with a high 160x multiplexing factor. The detectors and their cold readout electronics are packaged into 3 focal plane arrays that will be integrated into SAFARI's focal plane unit. Here we present the preliminary system design and current development status of the SAFARI detector system.