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RESEARCH PRODUCT
Radio frequency shielding of thin aluminized plastic filters investigated for the ATHENA X-IFU detector
E.f. CalandraPekka TörmäBrian JacksonEmilie GloaguenDaniele GulliMichela TodaroMarco BarberaF. CuttaiaGiuseppe Lo CiceroNicola MontinaroSalvatore Ferruggia BonuraFabrizio VillaUgo Lo CiceroLuisa SciortinoFabio D'ancaGiuseppe LulloBert-joost Van LeeuwenElena PuccioSalvo VariscoAlfonso Collurasubject
CryostatMaterials sciencePhysics::Instrumentation and DetectorsX-ray detectorRF attenuationField of viewCondensed Matter Physic02 engineering and technologyreverberation chamber7. Clean energyElectromagnetic interferenceSettore FIS/05 - Astronomia E AstrofisicaOpticsX-ray Integral Field Unit (X-IFU)thermal thin-film filter0202 electrical engineering electronic engineering information engineeringElectrical and Electronic Engineeringbusiness.industryElectronic Optical and Magnetic Material020502 materialsDetectorAstrophysics::Instrumentation and Methods for Astrophysicsx-ray detectorComputer Science Applications1707 Computer Vision and Pattern Recognition020206 networking & telecommunicationsresonance modeApplied MathematicATHENA X-ray observatoryEMI shielding0205 materials engineeringElectromagnetic shieldingRadio frequencyAntenna (radio)businessdescription
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 detectors 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 sensors (TES) micro-calorimeters covering a field of view of 5' diameter, sensitive in the energy range 0.2-12 keV, and providing a spectral resolution of 2.5 eV at 7 keV. Both the TES and superconducting quantum interference devices (SQUID) based read-out electronics are very sensitive to electromagnetic interferences (EMI), and a proper shielding of the focal plane assembly (FPA) is required to prevent a deterioration of the energy resolution. A set of thin filters, highly transparent to X-rays, will be mounted on the FPA and on the cryostat thermal shields in order to attenuate the infrared radiative load, and to protect the detector from contamination. Some of these filters are also aimed at providing proper radio frequency (RF) shielding in the frequency range of the satellite telemetry downlink antenna. In addition, filters should also be effective in shielding any RF interference generated by other on-board electronics. In this paper, we present results from RF measurements performed on thin plastic foils coated with an aluminum layer, with and without metal meshes, and identify the filter characteristics matching the RF shielding requirements.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-07-06 | Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray |