0000000000089895

AUTHOR

Stefano Nannarone

showing 2 related works from this author

Synchrotron x-ray transmission measurements and modeling of filters investigated for Athena

2020

International audience; Advanced Telescope for High-Energy Astrophysics is a large-class astrophysics space mission selected by the European Space Agency to study the theme "Hot and Energetic Universe." The mission essentially consists of a large effective area x-ray telescope and two detectors: the X-ray Integral Field Unit (X-IFU) and the Wide Field Imager (WFI). Both instruments require filters to shield from out-of-band radiation while providing high transparency to x-rays. The mission is presently in phase B; thus, to consolidate the preliminary design, investigated filter materials need to be properly characterized by experimental test campaigns. We report results from high-resolution…

synchrotron radiationComputer scienceAstrophysics::High Energy Astrophysical PhenomenaMechanical EngineeringAstrophysics::Instrumentation and Methods for AstrophysicsSynchrotron radiationtelescopesAstronomy and AstrophysicsElectronic Optical and Magnetic Materialslaw.inventionTelescopeFilter designSettore FIS/05 - Astronomia E AstrofisicaTransmission (telecommunications)Space and Planetary ScienceControl and Systems EngineeringlawFilter (video)[SDU]Sciences of the Universe [physics]CalibrationOptical filterInstrumentationDigital filterastrophysics space mission Athena optical and thermal filters Wide Field Imager X-ray Integral Field Unit x-ray transmissionRemote sensing
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A Temperature-Dependent X-Ray Absorption Characterization of Test Filters for the ATHENA Mission X-IFU Instrument

2018

In order to work properly, the X-ray Integral Field Unit of the ATHENA mission requires a set of thermal filters that block the infrared radiation, preventing it to reach the detector. Each filter will be mounted and thermally anchored onto a shield of the multistage cryostat and will be kept at the specific temperature of the stage. On the other hand, the filters partially absorb X-rays, and their transmittance has to be carefully characterized. The effect of temperature on the absorption edges of the elements that make up the filters has not been investigated yet. Here, we report the results of a preliminary run on the optical transmission data around the edges of C, N, and O at different…

CryostatAtomic and Molecular Physics and OpticMaterials scienceInfraredThermal filter-02 engineering and technology01 natural sciencesOptics0103 physical sciencesThermalTransmittanceGeneral Materials Science010306 general physicsAbsorption (electromagnetic radiation)X-IFUbusiness.industryDetector021001 nanoscience & nanotechnologyCondensed Matter PhysicsAtomic and Molecular Physics and OpticsATHENAK-edgeK-edgeFilter (video)Materials Science (all)0210 nano-technologybusinessJournal of Low Temperature Physics
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