SQUID-based readout schemes for microcalorimeter arrays

Kiviranta, Mikko; Seppä, Heikki; Kuur, J. van der; Korte, P. de

doi:10.1063/1.1457649

Cited by 57 publications

(44 citation statements)

References 3 publications

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“…Multiplexing can be accomplished in both time and frequency space. Extensive evaluations of both methods have been published elsewhere [6], [7]. The choice for time domain multiplexing (TDM) or frequency domain multiplexing (FDM) depends on the requirements of a particular application.…”

Section: Microcalorimeter Readout and Multiplexingmentioning

confidence: 99%

AC biased TES-based X-ray microcalorimeter with an energy resolution of 6.3 eV at 5.89 keV

Kuur

Korte

Hoevers

et al. 2003

IEEE Trans. Appl. Supercond.

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Frequency domain multiplexing (FDM) is an attractive option for the readout of imaging arrays of microcalorimeters. The most straightforward implementation of FDM is based on alternating voltage (AC) biasing of the individual microcalorimeters. It is clear that for future applications the performance in terms of energy resolution and count rate capability is crucial. We discuss the consequences of AC bias for the performance of a microcalorimeter, and make a direct experimental comparison between the performance of a TES based microcalorimeter AC and DC bias. Modeling, as well as experiments, show that the performance of the device is is very similar in terms of energy resolution and pulse shapes (100 s effective time constant). The measured energy resolution at 5.89 keV photon energy is 6.3 eV for AC bias at 46 kHz and 5.5 eV for DC bias.

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Section: Microcalorimeter Readout and Multiplexingmentioning

confidence: 99%

AC biased TES-based X-ray microcalorimeter with an energy resolution of 6.3 eV at 5.89 keV

Kuur

Korte

Hoevers

et al. 2003

IEEE Trans. Appl. Supercond.

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“…FDM [1,2] is based on the amplitude modulation of carrier signals by a lowtemperature detector, such as a TES [3], upon photon detection. It allows the read-out of multiple TES pixels in a row using a single SQUID-based pre-amplifier, thus significantly reducing the heat-load on the array via the external wiring.…”

Section: Introductionmentioning

confidence: 99%

A Low-Power Algorithm for Baseband Feedback Used with Frequency Domain Multiplexing

et al. 2012

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SRON is developing an electronic read-out system for an array of transition edge sensors (TES), which combines the techniques of frequency domain multiplexing (FDM) with base-band feedback (BBFB). An important part of this technique is implemented in digital electronics. This paper describes how a significant reduction of the power consumption of the digital electronics is realized by down-sampling to much lower frequencies using channelization and a poly-phase filter design adapted to BBFB.

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“…It has already found application in several [2][3][4]. FDM is based on the amplitude modulation of a carrier signal with the signal detected by the TES detector [5,6]. BBFB [7][8][9] attempts to cancel the error signal in the SQUID sum-point, improving the signal bandwidth and the loop gain.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2012

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SRON is developing an electronic read-out system for an array of transition edge sensors (TES) based on the techniques of frequency domain multiplexing (FDM) and base-band feedback (BBFB). The astronomical applications of our system are the read-out of soft X-ray micro-calorimeters in a potential instrument on the European X-ray mission-under-study Athena and far-IR 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 in-band read-out noise of the loops is shown to reach the 10 pA/ √ Hz level required for these missions.

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SQUID-based readout schemes for microcalorimeter arrays

Cited by 57 publications

References 3 publications

AC biased TES-based X-ray microcalorimeter with an energy resolution of 6.3 eV at 5.89 keV

AC biased TES-based X-ray microcalorimeter with an energy resolution of 6.3 eV at 5.89 keV

A Low-Power Algorithm for Baseband Feedback Used with Frequency Domain Multiplexing

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

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