0000000000084805

AUTHOR

Giancarlo Parodi

showing 8 related works from this author

Thermal Filters for the ATHENA X-IFU: Ongoing Activities Toward the Conceptual Design

2016

ATHENA is the L2 mission selected by ESA to pursue the science theme “Hot and Energetic Universe.” One of the two focal plane instruments is the X-ray Integral Field Unit, an array of TES microcalorimeters operated at T $$<$$ 100 mK. To allow the X-ray photons focused by the telescope to reach the detector, windows have to be opened on the cryostat thermal shields. X-ray transparent filters need to be mounted on these open windows to attenuate the IR radiation from warm surfaces, to attenuate RF electromagnetic interferences on TES sensors and SQUID electronics, and to protect the detector from contamination. This paper reviews the ongoing activities driving the design of the X-IFU thermal …

CryostatX-ray AstronomyAtomic and Molecular Physics and OpticATHENA; Thermal Filters; X-IFU; X-ray Astronomy; Condensed Matter Physics; Atomic and Molecular Physics and Optics; Materials Science (all)ShieldsCondensed Matter Physic01 natural sciencesThermal Filterlaw.invention010309 opticsTelescopeATHENA; Thermal Filters; X-IFU; X-ray Astronomy; Atomic and Molecular Physics and Optics; Materials Science (all); Condensed Matter PhysicsOpticsSettore FIS/05 - Astronomia E AstrofisicaConceptual designlawAtomic and Molecular Physics0103 physical sciencesGeneral Materials ScienceElectronics010303 astronomy & astrophysicsThermal FiltersPhysicsX-ray astronomyX-IFUbusiness.industryDetectorCondensed Matter PhysicsAtomic and Molecular Physics and OpticsATHENACardinal pointMaterials Science (all)and Opticsbusiness
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ATHENA WFI optical blocking filters development status toward the end of the instrument phase-A

2018

Copyright 2018 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. The Wide Field Imager (WFI) is one of the two instruments of the ATHENA astrophysics space mission approved by ESA as the second large mission in the Cosmic Vision 2015-2025 Science Programme. The WFI, based on a large array of depleted field effect transistors (DEPFET), will provide imaging in the 0.2-15 keV band over a 40'x40' field of view, simultaneously with spectrally an…

X-ray detectorCosmic VisionPhotonX-ray detectorWide Field ImagerField of viewCondensed Matter Physic7. Clean energy01 natural sciences010309 opticsX-ray astronomyOpticsSettore FIS/05 - Astronomia E Astrofisica0103 physical sciencesAthenaSpectral resolutionElectrical and Electronic EngineeringOptical blocking filter010303 astronomy & astrophysicsPhysicsCMOS sensorbusiness.industryElectronic Optical and Magnetic MaterialDetectorComputer Science Applications1707 Computer Vision and Pattern RecognitionPhoton countingApplied MathematicActive pixel sensor13. Climate actionbusinessDEPFET
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The filter and calibration wheel for the ATHENA wide field imager

2016

The planned filter and calibration wheel for the Wide Field Imager (WFI) instrument on Athena is presented. With four selectable positions it provides the necessary functions, in particular an UV/VIS blocking filter for the WFI detectors and a calibration source. Challenges for the filter wheel design are the large volume and mass of the subsystem, the implementation of a robust mechanism and the protection of the ultra-thin filter with an area of 160 mm square. This paper describes performed trade-offs based on simulation results and describes the baseline design in detail. Reliable solutions are envisaged for the conceptual design of the filter and calibration wheel. Four different varian…

010302 applied physicsComputer scienceDetectorFilter wheel mechanism FEM structural and acoustic analysis ATHENA WFIVolume (computing)Blocking (statistics)01 natural sciencesSquare (algebra)Settore FIS/05 - Astronomia E AstrofisicaPosition (vector)Filter (video)0103 physical sciencesElectronic engineeringCalibration010303 astronomy & astrophysicsSimulation
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Preliminary Mechanical Characterization of Thermal Filters for the X-IFU Instrument on Athena

2018

The X-ray Integral Field Unit (X-IFU) is one of the two instruments of the Athena astrophysics space mission approved by ESA in the Cosmic Vision Science Program. The X-IFU consists of a large array of TES microcalorimeters that will operate at ~ 50 mK inside a sophisticated cryostat. A set of thin filters, highly transparent to X-rays, will be mounted on the cryostat thermal shields in order to attenuate the IR radiative load, to attenuate RF electromagnetic interferences, and to protect the detector from contamination. In this paper, we present the current thermal filters design, describe the filter samples developed/procured so far, and present preliminary results from the ongoing charac…

PhysicsCryostatX-IFUCosmic VisionAtomic and Molecular Physics and Opticbusiness.industryDetectorShieldsX-ray microcalorimeterThermal filterCondensed Matter Physics01 natural sciencesAtomic and Molecular Physics and OpticsCharacterization (materials science)OpticsFilter (video)0103 physical sciencesThermalRadiative transferGeneral Materials ScienceAthenaMaterials Science (all)010306 general physicsbusiness010303 astronomy & astrophysics
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Structural modelling and mechanical tests supporting the design of the ATHENA X-IFU thermal filters and WFI optical blocking filter

2018

Copyright 2018 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. ATHENA is a Large high energy astrophysics space mission selected by ESA in the Cosmic Vision 2015-2025 Science Program. It will be equipped with two interchangeable focal plane detectors: the X-Ray Integral Field Unit (X-IFU) and the Wide Field Imager (WFI). Both detectors require x-ray transparent filters to fully exploit their sensitivity. In order to maximize the X-ray tra…

Cosmic VisionComputer scienceCondensed Matter PhysicBlocking (statistics)01 natural sciencesSettore FIS/05 - Astronomia E AstrofisicaWFI0103 physical sciencesSensitivity (control systems)Aerospace engineeringElectrical and Electronic Engineering010306 general physicsFEAX-IFU010308 nuclear & particles physicsbusiness.industryFilterElectronic Optical and Magnetic MaterialDetectorComputer Science Applications1707 Computer Vision and Pattern RecognitionTransparency (human–computer interaction)ATHENAVibrationApplied MathematicCardinal pointFilter (video)X-Raybusiness
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ATHENA X-IFU thermal filters development status toward the end of the instrument phase-A

2018

Copyright 2018 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. The X-ray Integral Field Unit (X-IFU) is one of the two instruments of the Athena astrophysics space mission approved by ESA in the Cosmic Vision 2015-2025 Science Programme. The X-IFU consists of a large array of transition edge sensor micro-calorimeters that will operate at 100 mK inside a sophisticated cryostat. A set of thin filters, highly transparent to X-rays, will be m…

X-ray detectorCryostatCosmic VisionPhotonComputer scienceShieldsCondensed Matter Physicmicrocalorimeter01 natural sciences7. Clean energySettore FIS/05 - Astronomia E AstrofisicaX-ray Integral Field Unit (X-IFU)0103 physical sciencesthermal thin-film filterElectrical and Electronic EngineeringAerospace engineering010306 general physics010303 astronomy & astrophysicsbusiness.industryElectronic Optical and Magnetic MaterialDetectorAstrophysics::Instrumentation and Methods for AstrophysicsShot noiseComputer Science Applications1707 Computer Vision and Pattern RecognitionTransition Edge SensorApplied MathematicATHENA X-ray observatoryRadio frequencyTransition edge sensorbusinessSpace Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray
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The optical blocking filter for the ATHENA wide field imager: Ongoing activities towards the conceptual design

2015

ATHENA is the L2 mission selected by ESA to pursue the science theme "Hot and Energetic Universe" (launch scheduled in 2028). One of the key instruments of ATHENA is the Wide Field Imager (WFI) which will provide imaging in the 0.1-15 keV band over a 40'x40' large field of view, together with spectrally and time-resolved photon counting. The WFI camera, based on arrays of DEPFET active pixel sensors, is also sensitive to UV/Vis photons. Optically generated electron-hole pairs may degrade the spectral resolution as well as change the energy scale by introducing a signal offset. For this reason, the use of an X-ray transparent optical blocking filter is needed to allow the observation of all …

PhysicsfilterOffset (computer science)PhotonPixelbusiness.industryElectronic Optical and Magnetic MaterialApplied MathematicsAstrophysics::Instrumentation and Methods for AstrophysicsComputer Science Applications1707 Computer Vision and Pattern RecognitionCondensed Matter PhysicPhoton countingATHENAVibrationInstrumentation for AstrophysicX-rayOpticsConceptual designWFIField-effect transistorSpectral resolutionElectrical and Electronic Engineeringbusiness
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A new heterogeneous and reconfigurable architecture for image analysis

1993

In the paper a new architecture for image analysis: HERMIA (Heterogeneous and Reconfigurable Machine for Image Analysis) is presented. It has bt:en developed at the University of Palermo, inside the Progetto Finalizzato of the ltalian Council of Researches (CNR): Sistemi informatici e Calcolo Parallelo. The architecture of the HERMIA-machine is reconfigurable, moreover the integration of heterogeneous module, oriented to the solution of specific problems, allows to salve complex problems by search of optimal strategies. Signa! processing units allows the user to handle and integrate multi-sensors signals (from video, scanner, music recorder). Here the generai architecture, the hardware impl…

ScannerDigital signal processorSignal processingHPC Signal Processing Image Analysis reconfigurable architecture.Settore INF/01 - InformaticaComputer architectureComputer scienceApplications architectureSystem evaluationArchitectureComplex problemsImage (mathematics)
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