6533b82efe1ef96bd129275f
RESEARCH PRODUCT
ATHENA X-IFU thermal filters development status toward the end of the instrument phase-A
Luisa SciortinoJan-willem Den HerderMarco BarberaGiuseppe Lo CiceroF. CuttaiaGaspare Di CiccaSalvatore Ferruggia BonuraRoberto CandiaSalvatore SciortinoSalvo VariscoPhilippe PeilleLuigi PiroAntonino ButtacavoliGregor RauwGiancarlo ParodiFabio D'ancaMassimo CappiRoland H. Den HartogFabrizio VillaUgo Lo CiceroAlfonso ColluraGraziella Branduardi RaymontThien Lam TrongBrian JacksonPaolo GiglioJean-michel MesnagerDidier Barretsubject
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 sensorbusinessdescription
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 mounted on the opening windows of the cryostat thermal shields in order to attenuate the IR radiative load, to attenuate radio frequency electromagnetic interferences, and to protect the detector from contamination. Thermal filters are critical items in the proper operation of the X-IFU detector in space. They need to be strong enough to survive the launch stresses but very thin to be highly transparent to X-rays. They essentially define the detector quantum efficiency at low energies and are fundamental to make the photon shot noise a negligible contribution to the energy resolution budget. In this paper, we review the main results of modeling and characterization tests of the thermal filters performed during the phase A study to identify the suitable materials, optimize the design, and demonstrate that the chosen technology can reach the proper readiness before mission adoption.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-01-01 | Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray |