Design of frequency domain multiplexing of TES signals by multi-input SQUIDs

Yamasaki, Noriko Y.; Masui, Kensuke; Mitsuda, Kazuhisa; Morooka, T.; Nakayama, Satoshi; Takei, Yoh

doi:10.1016/j.nima.2005.12.141

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…In one of the EURECA channels we will make use of a flux summing topology, making use of a Seiko SQUID 16 with a noise level of about 0.5 µФ 0 /Hz 1/2 and eight galvanically seperated signal inputs. It is planned to read-out the input SQUID by means of a Seiko array-SQUID as 2 nd stage.…”

Section: Squidsmentioning

confidence: 99%

EURECA: a European-Japanese micro-calorimeter array

Korte

Anquita²,

Barcons

et al. 2006

SPIE Proceedings

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EURECA (EURopean-JapanEse Calorimeter Array) comprises a 5 x 5 pixel imaging TES-based micro-calorimeter array read-out by SQUID-based frequency-domain-multiplexed electronics and cooled down by an adiabatic demagnetization refrigerator. A European-Japanese consortium designs, fabricates, and tests this prototype instrument with the aim to show within about 2 years technology readiness of a TES-based X-ray imaging micro-calorimeter array in anticipation of future X-ray astronomy missions, like XEUS (ESA), Constellation-X (NASA), NEXT (JAXA), DIOS (JAXA), ESTREMO (ASI), and NEW (Dutch-multinational). This paper describes the instrument concept, and shows the design of the various sub-units, like the TES detector array, LC-filters, SQUID-amplifiers, flux-locked-loop electronics, AC-bias sources, etc.

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Section: Squidsmentioning

confidence: 99%

EURECA: a European-Japanese micro-calorimeter array

Korte

Anquita²,

Barcons

et al. 2006

SPIE Proceedings

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“…10 Then, a room-temperature circuit demodulate and demultiplex the signal into the individual channel signals. 11,12 To increase the number of multiplexed channels, bias frequency should be higher than ∼ 1 MHz. With such high frequency bias, phase delay due to the wiring from the room-temperature circuit to the cold stage should be cancelled to achieve a stable feedback.…”

Section: Multiplexed Readout Circuitmentioning

confidence: 99%

Status of the DIOS mission

Tawara

Sakurai

Furuzawa

et al. 2008

Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray

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We present the current status of a small X-ray mission DIOS (Diffuse Intergalactic Oxygen Surveyor), consisting of a 4-stage X-ray telescope and an array of TES microcalorimeters, cooled with mechanical coolers, with a total weight of about 400 kg. The mission will perform survey observations of warm-hot intergalactic medium using OVII and OVIII emission lines, with the energy coverage up to 1.5 keV. The wide field of view of about 50' diameter, superior energy resolution close to 2 eV FWHM, and very low background will together enable us a wide range of science for diffuse X-ray sources. We briefly describe the current status of the development of the satellite, and the subsystems.

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“…8 of them, in frequency space by driving the TES calorimeters with AC bias at different frequencies for different pixels. 9,10 The summed signals are retrieved by single wire and then demodulated by a room-temperature electronics. The SQUID needs to be operated at 1 MHz to obtain a dynamic range in the frequency space.…”

Section: Instrumentsmentioning

confidence: 99%

DIOS: the diffuse intergalactic oxygen surveyor

et al. 2006

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We present our proposal for a small X-ray mission DIOS (Diffuse Intergalactic Oxygen Surveyor), consisting of a 4-stage X-ray telescope and an array of TES microcalorimeters, cooled with mechanical coolers, with a total weight of about 400 kg. The mission will perform survey observations of warm-hot intergalactic medium using OVII and OVIII emission lines, with the energy coverage up to 1.5 keV. The wide field of view of about 50 ′ diameter, superior energy resolution close to 2 eV FWHM, and very low background will together enable us a wide range of science for diffuse X-ray sources. We briefly describe the design of the satellite, performance of the subsystems and the expected results.

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Design of frequency domain multiplexing of TES signals by multi-input SQUIDs

Cited by 5 publications

References 4 publications

EURECA: a European-Japanese micro-calorimeter array

EURECA: a European-Japanese micro-calorimeter array

Status of the DIOS mission

DIOS: the diffuse intergalactic oxygen surveyor

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