6533b825fe1ef96bd128203d

RESEARCH PRODUCT

Structural modelling and mechanical tests supporting the design of the ATHENA X-IFU thermal filters and WFI optical blocking filter

Ugo Lo CiceroJohannes HartwigGiancarlo ParodiAlfonso ColluraNorbert MeidingerSalvatore Ferruggia BonuraAdam PilchAntonino ButtacavoliLuisa SciortinoSzymon PolakKurt DittrichValérie SamainMarco BarberaMiroslaw RatajFabio D'anca

subject

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

description

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 transparency, filters must be very thin, from a few tens to few hundreds of nm, on the other hand, they must be strong enough to survive the severe launch stresses. In particular, the WFI OBF, being launched in atmospheric pressure, shall also survive acoustic loads. In this paper, we present a review of the structural modeling performed to assist the ATHENA filters design, the preliminary results from vibration and acoustic tests, and we discuss future activities necessary to consolidate the filters design, before the preliminary requirement review of the ATHENA instruments, scheduled before the end of 2018.

yearjournalcountryeditionlanguage
2018-07-06
10.1117/12.2314451http://hdl.handle.net/10447/302534