Low-Noise Readout of TES Detectors with Baseband Feedback Frequency Domain Multiplexing

Hartog, R. den; Audley, M. D.; Beyer, J.; Boersma, D.; Bruijn, M. P.; Gottardi, L.; Hoevers, H.; Hou, Rui; Keizer, Geert; Khosropanah, P.; Kiviranta, Mikko; Korte, P. de; Kuur, J. van der; Leeuwen, B. J. van; Nieuwenhuizen, A. C. T.; Winden, P. van

doi:10.1007/s10909-012-0577-8

Cited by 27 publications

(13 citation statements)

References 12 publications

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“…In order to reduce the wire count, and hence the thermal load, the ~3500 detectors are read out using frequency-domain multiplexing with baseband feedback [24], [25] . Each TES bolometer is AC-biased, at a unique frequency between ~1 and ~4 MHz.…”

Section: Readoutmentioning

confidence: 99%

The SAFARI detector system

Audley

Lange

Gao

et al. 2018

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX

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We give an overview of the baseline detector system for SAFARI, the prime focal-plane instrument on board the proposed space infrared observatory, SPICA. SAFARI's detectors are based on superconducting Transition Edge Sensors (TES) to provide the extreme sensitivity (dark NEP≤2×10 -19 W/√Hz) needed to take advantage of SPICA's cold (<8 K) telescope. In order to read out the total of ~3500 detectors we use frequency domain multiplexing (FDM) with baseband feedback. In each multiplexing channel, a two-stage SQUID preamplifier reads out 160 detectors. We describe the detector system and discuss some of the considerations that informed its design. * audley@physics.org; phone +31 (0)50 363 9361; fax +31 (0)50 363 4033; www.sron.nl

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Section: Readoutmentioning

confidence: 99%

The SAFARI detector system

Audley

Lange

Gao

et al. 2018

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX

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“…The SQUIDs array signal is read out using low-noise room temperature FEE developed at SRON operating both in open-loop mode or in Baseband Feedback mode. 13…”

Section: Experimental Set-upmentioning

confidence: 99%

Development of TES-based detectors array for the X-ray Integral Field Unit (X-IFU) on the future x-ray observatory ATHENA

et al. 2014

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We are developing transition-edge sensor (TES)-based microcalorimeters for the X-ray Integral Field Unit (X-IFU) of the future European X-Ray Observatory Athena. The microcalorimeters are based on TiAu TESs coupled to 250µm squared, AuBi absorbers. We designed and fabricated devices with different contact geometries between the absorber and the TES to optimise the detector performance and with different wiring topology to mitigate the self-magnetic field. The design is tailored to optimise the performance under Frequency Domain Multiplexing. In this paper we review the main design feature of the pixels array and we report on the performance of the 18 channels, 2-5MHz frequency domain multiplexer that will be used to characterised the detector array.

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“…In the SAFARI case the heat load constraints limit the achievable dynamic range in the first stage SQUID to ∼5 · 10 5 √ Hz as the power consumption in a SQUID P scales as P ∝ D 2 . The effective dynamic range of SQUID (chain) has been enhanced to 4 · 10 6 √ Hz by applying a loop gain of >50 in a baseband feedback loop [3].…”

Section: Safari Readout Chainmentioning

confidence: 99%

The SPICA-SAFARI TES Bolometer Readout: Developments Towards a Flight System

et al. 2012

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SAFARI is an imaging Fourier Transform Spectrometer for 35-200 µm under development for flight on the Japanese IR-satellite SPICA (2018). The 3.25 m diameter actively cooled telescope (<6K) will provide a sky background limited signal, which implies that detectors will need to have an NEP of 3.5 · 10 −19 W/ √ Hz in order not to be limiting the sensitivity. The instrument will utilize three TES-based detector arrays, covering the 2 × 2 arcmin field-of-view in three octaves of wave length. This contribution will present an overview of the detector sub-system, i.e.: the detector arrays and radiation coupling, the focal plane assembly, the amplification chain and the frequency-domain-multiplexed electronics. The focus will be on the implications on the system design of the readout under the stringent power dissipation, heat load, and weight limitations.

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Low-Noise Readout of TES Detectors with Baseband Feedback Frequency Domain Multiplexing

Cited by 27 publications

References 12 publications

The SAFARI detector system

The SAFARI detector system

Development of TES-based detectors array for the X-ray Integral Field Unit (X-IFU) on the future x-ray observatory ATHENA

The SPICA-SAFARI TES Bolometer Readout: Developments Towards a Flight System

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