Signal Readout for Transition-Edge Sensor X-ray Imaging Spectrometers

Akamatsu, Hiroki; Doriese, W. B.; Mates, J. A. B.; Jackson, B. D.

doi:10.1007/978-981-16-4544-0_24-1

Cited by 4 publications

(1 citation statement)

References 149 publications

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“…Instead, the LMS employs multiplexed readout, or the integration of readout signals from multiple TESs into an amplifier channel. The signal currents from the LMS TESs are read out via the technique of SQUID TDM 50 Figure 9. illustrates the basics of the TDM readout scheme.…”

Section: Cold Readout: Time-division Multiplexing Squids and Amplifie...mentioning

confidence: 99%

Line emission mapper microcalorimeter spectrometer

Bandler,

Adams,

Amatucci

et al. 2023

J. Astron. Telesc. Instrum. Syst.

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.The line emission mapper (LEM) is a probe-class mission concept that is designed to detect x-ray emission lines from hot ionized gas (T > 106 K) that will enable us to test galaxy evolution theories. It will permit us to study the effects of stellar and black-hole feedback and flows of baryonic matter into and out of galaxies. The key to being able to study the hot gases that are otherwise invisible to current imaging x-ray spectrometers is that the energy resolution is sufficient to use cosmological redshift to separate extragalactic source lines from foreground Milky Way emission. LEM incorporates a large-format microcalorimeter array instrument called the LEM microcalorimeter spectrometer (LMS) with a light-weight x-ray optic with 10” half power diameter angular resolution. The LMS microcalorimeter array has pixels with 15″ pixel pitch over a 33′ field of view (FOV) optimized for the 0.3 to 2 keV energy band. The central 7′ region of the array has an energy resolution of 1.3 eV at 1 keV and the rest of the FOV has 2.5 eV energy resolution at 1 keV. The array will be read out with state-of-the-art time-division multiplexing. We present an overview of the LMS instrument, including details of the entire detection chain, the focal plane assembly, as well as the cooling system and overall mechanical and thermal design. For each of the key technologies, we discuss the current technology readiness level and the plan to advance them to be ready for flight. We also describe the current system design and our estimate for the mass, power, and data rate of the instrument. The design details presented concentrate primarily on the unique aspects of the LMS design compared with prior missions and confirm that the type of microcalorimeter instrument needed for LEM is not only feasible but also technically mature.

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Section: Cold Readout: Time-division Multiplexing Squids and Amplifie...mentioning

confidence: 99%

Line emission mapper microcalorimeter spectrometer

Bandler,

Adams,

Amatucci

et al. 2023

J. Astron. Telesc. Instrum. Syst.

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System Performance of a TDM Test-Bed with Long Flex Harness Toward the New X-IFU FPA-DM

Vaccaro,

de Wit,

van der Kuur

et al. 2024

J Low Temp Phys

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Development of the microcalorimeter and anticoincidence detector for the Line Emission Mapper x-ray probe

Smith,

Adams,

Bandler

et al. 2023

J. Astron. Telesc. Instrum. Syst.

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.The Line Emission Mapper (LEM) is an x-ray probe mission concept that is designed to provide unprecedented insight into the physics of galaxy formation, including stellar and black-hole feedback and flows of baryonic matter into and out of galaxies. LEM incorporates a light-weight x-ray optic with a large-format microcalorimeter array. The LEM detector utilizes a 14k pixel array of transition-edge sensors (TESs) that will provide <2.5 eV spectral resolution over the energy range 0.2 to 2 keV, along with a field-of-view of 30 arcmin. The microcalorimeter array and readout builds upon the technology developed for the European Space Agency’s (ESA’s) Athena/x-ray Integral Field Unit. Here, we present a detailed overview of the baseline microcalorimeter design, its performance characteristics, including a detailed energy resolution budget and the expected count-rate capability. In addition, we outline the current status and plan for continued technology maturation. Behind the LEM array sits a high-efficiency TES-based anticoincidence (antico) detector that will reject cosmic-ray background events. We will briefly describe the design of the antico and plan for continued development.

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Signal Readout for Transition-Edge Sensor X-ray Imaging Spectrometers

Cited by 4 publications

References 149 publications

Line emission mapper microcalorimeter spectrometer

Line emission mapper microcalorimeter spectrometer

System Performance of a TDM Test-Bed with Long Flex Harness Toward the New X-IFU FPA-DM

Development of the microcalorimeter and anticoincidence detector for the Line Emission Mapper x-ray probe

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