Multilayer ZTA-core composite with bio-derived coatings for space radiation shielding against gamma, proton, and neutron radiation

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dc.authorid0000-0003-2141-5355
dc.authorid0009-0001-4942-9719
dc.contributor.authorYıldırım, Aydın
dc.date.accessioned2026-07-27T09:04:22Z
dc.date.available2026-07-27T09:04:22Z
dc.date.issued2026-05-27
dc.departmentTENMAK-Nükleer Enerji Araştırma Enstitüsü-Ankara
dc.description.abstractThis study numerically evaluates the radiation shielding performance of a multilayer ceramic architecture consisting of a zirconia toughened alumina core with mycelium-based coatings, including melanized variants, under gamma rays, neutrons, and protons. Photon attenuation is simulated using Geant4 and benchmarked against XCOM, and standard gamma shielding metrics are reported for the multilayer configuration. Neutron response is quantified through macroscopic removal cross sections in the 2 to 10 MeV range and thick-ness dependent transmission factors for fast and thermal neutrons, where clearer separation among coatingoptionsisobservedinthethermalregion.ProtonstoppingpoweranddepthdependentLETprofilesareobtainedwithSRIM/TRIMfor10to50MeV,andtheBraggpeakpositionisusedtoassesslayerthicknessrequirements.Thecompositesystemshowsphotonattenuationbetweenconcreteandlead,whileneutronperformancedependsstronglyoncoatingcomposition.Overall,theresultsestablishadirectlinkbetweenarchi-tecturalparametersandradiationresponse,providingguidanceforthedesignandoptimizationoflayeredceramicshieldingsystems
dc.identifier.doi10.1016/j.asr.2026.05.076
dc.identifier.endpage3037
dc.identifier.issue78
dc.identifier.startpage3016
dc.identifier.urihttps://kurumsalarsiv.tenmak.gov.tr/handle/20.500.12878/2102
dc.institutionauthorYıldırım, Aydın
dc.institutionauthorOpçin, Buşra
dc.language.isoen
dc.publisherELSEVIER
dc.relation.journalScienceDirect
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectSpace radiation
dc.subjectRadiation shielding
dc.subjectMultilayer composite
dc.subjectZirconia toughenedalumina
dc.subjectNeutronattenuation
dc.titleMultilayer ZTA-core composite with bio-derived coatings for space radiation shielding against gamma, proton, and neutron radiation
dc.typearticle
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