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13 December 2020 Noise and cross-talk measurements of SAFARI FDM readout
Pourya Khosropanah, Q. Wang, M. D. Audley, J. van der Kuur, S. Ilyas, M .L. Ridder, A. Aminaei, R. Hijmering, A. J. van der Linden, M. P. Bruijn, H. Akamatsu, G. de Lange, J.R. Gao
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Proceedings Volume 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X; 114530Y (2020) https://doi.org/10.1117/12.2562663
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only
Abstract
The SAFARI instrument is a spectrometer on board SPICA, using ~4000 TES bolometers with an unprecedented sensitivity. We are currently optimizing an FDM readout prototype for SAFARI, which is capable of reading out 160 pixels with the bias frequency range 1-4 MHz and 16 kHz spacing. We present our latest results with emphasis on the noise and cross-talk performance of this system. The measured readout noise is discussed in various configurations. We also present a method for mapping out the electrical cross-talk between the pixels in the array and elaborate on the measured data and analysis.
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Pourya Khosropanah, Q. Wang, M. D. Audley, J. van der Kuur, S. Ilyas, M .L. Ridder, A. Aminaei, R. Hijmering, A. J. van der Linden, M. P. Bruijn, H. Akamatsu, G. de Lange, and J.R. Gao "Noise and cross-talk measurements of SAFARI FDM readout", Proc. SPIE 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X, 114530Y (13 December 2020); https://doi.org/10.1117/12.2562663
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KEYWORDS
Fused deposition modeling
Bolometers
Sensors
Diffraction gratings
Fourier transforms
Frequency division multiplexing
Optical design
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