0000000001148986

AUTHOR

Hiroki Akamatsu

showing 3 related works from this author

The Athena X-ray Integral Field Unit: a consolidated design for the system requirement review of the preliminary definition phase

2023

The Athena X-ray Integral Unit (X-IFU) is the high resolution X-ray spectrometer, studied since 2015 for flying in the mid-30s on the Athena space X-ray Observatory, a versatile observatory designed to address the Hot and Energetic Universe science theme, selected in November 2013 by the Survey Science Committee. Based on a large format array of Transition Edge Sensors (TES), it aims to provide spatially resolved X-ray spectroscopy, with a spectral resolution of 2.5 eV (up to 7 keV) over an hexagonal field of view of 5 arc minutes (equivalent diameter). The X-IFU entered its System Requirement Review (SRR) in June 2022, at about the same time when ESA called for an overall X-IFU redesign (i…

X-IFU: The X-ray Integral Field UnitCosmology and Nongalactic Astrophysics (astro-ph.CO)The X-ray Integral Field Unit [X-IFU]Solar and stellar astrophysicsFOS: Physical sciences/dk/atira/pure/sustainabledevelopmentgoals/responsible_consumption_and_production[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]Settore FIS/05 - Astronomia E AstrofisicaX-raysSDG 7 - Affordable and Clean EnergyInstrumentation and Methods for Astrophysics (astro-ph.IM)Solar and Stellar Astrophysics (astro-ph.SR)High Energy Astrophysical Phenomena (astro-ph.HE)/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energyAstrophysics of GalaxiesAthena: the advanced telescope for high energy astrophysicsAstronomy and AstrophysicsAstrophysics - Astrophysics of GalaxiesAstrophysical phenomenaSpace instrumentationAstrophysics - Solar and Stellar AstrophysicsHigh energySpace and Planetary ScienceAstrophysics of Galaxies (astro-ph.GA)[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]the advanced telescope for high energy astrophysics [Athena]Athena: the advanced telescope for high energy astrophysics · X-IFU: The X-ray Integral Field Unit · Space instrumentation · X-rays · ObservatoryObservatoryAstrophysics - Instrumentation and Methods for AstrophysicsAstrophysics - High Energy Astrophysical PhenomenaSDG 12 - Responsible Consumption and ProductionAstrophysics - Cosmology and Nongalactic Astrophysics
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The focal plane assembly for the Athena X-ray Integral Field Unit instrument

2016

This paper summarizes a preliminary design concept for the focal plane assembly of the X-ray Integral Field Unit on the Athena spacecraft, an imaging microcalorimeter that will enable high spectral resolution imaging and point-source spectroscopy. The instrument's sensor array will be a ~ 3840-pixel transition edge sensor (TES) microcalorimeter array, with a frequency domain multiplexed SQUID readout system allowing this large-format sensor array to be operated within the thermal constraints of the instrument's cryogenic system. A second TES detector will be operated in close proximity to the sensor array to detect cosmic rays and secondary particles passing through the sensor array for off…

CryostatPhysics::Instrumentation and DetectorsAperture01 natural sciencesfrequency division multiplexingfocal plane assemblySettore FIS/05 - Astronomia E AstrofisicaOpticsSensor array0103 physical sciencesElectronicSQUID amplifierAthenaOptical and Magnetic MaterialsElectrical and Electronic Engineeringta216010306 general physicsta113010302 applied physicsPhysicsX-IFUta114ta213business.industryStray lightApplied Mathematicstransition edge sensorDetectorAstrophysics::Instrumentation and Methods for AstrophysicsX-ray microcalorimeterComputer Science Applications1707 Computer Vision and Pattern RecognitionCondensed Matter PhysicsCardinal pointElectromagnetic shieldingcryogenic anti-coincidence detectorX-ray microcalorimeter transition edge sensor cryogenic anti-coincidence detector SQUID amplifier frequency division multiplexing Athena X-IFU focal plane assemblyTransition edge sensorbusinessAthena; cryogenic anti-coincidence detector; focal plane assembly; frequency division multiplexing; SQUID amplifier; transition edge sensor; X-IFU; X-ray microcalorimeter; Electronic Optical and Magnetic Materials; Condensed Matter Physics; Computer Science Applications1707 Computer Vision and Pattern Recognition; Applied Mathematics; Electrical and Electronic EngineeringSPIE Proceedings
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The X-ray Integral Field Unit (X-IFU) for Athena

2014

Athena is designed to implement the Hot and Energetic Universe science theme selected by the European Space Agency for the second large mission of its Cosmic Vision program. The Athena science payload consists of a large aperture high angular resolution X-ray optics (2 m2 at 1 keV) and twelve meters away, two interchangeable focal plane instruments: the X-ray Integral Field Unit (X-IFU) and the Wide Field Imager. The X-IFU is a cryogenic X-ray spectrometer, based on a large array of Transition Edge Sensors (TES), oering 2.5 eV spectral resolution, with approximately 5" pixels, over a field of view of 5' in diameter. In this paper, we present the X-IFU detector and readout electronics princi…

PhysicsCosmic VisionEquipment and servicesSpectrometerSpectral resolutionSpectrometersX-ray opticsbusiness.industrySensorsVisionDetectorAstrophysics::Instrumentation and Methods for AstrophysicsField of viewOpticsCardinal pointParticlesSettore FIS/05 - Astronomia E AstrofisicaX-raysImaging systemsAngular resolutionSpectral resolutionElectronicsbusinessImage resolution
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