Törmä, PekkaPekkaTörmäBARBERA, MarcoMarcoBARBERAD'ANCA, FABIOFABIOD'ANCALO CICERO, UGOUGOLO CICEROSCIORTINO, LUISALUISASCIORTINOTODARO, MichelaMichelaTODAROMONTINARO, NICOLANICOLAMONTINAROALAIMO, EdoardoEdoardoALAIMO2023-11-082023-11-082023http://hdl.handle.net/20.500.12386/34468This document summarizes the main results of the activity. The most important aspects related to fabrication of target filters are presented together with their most important characterized properties. Based on the presented results we made few recommendations in the scheme of ATHENA filter planning.ELETTRONICOenResearch reportFIS/05 - ASTRONOMIA E ASTROFISICAERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_17 Instrumentation – telescopes, detectors and techniques