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<dcterms:abstract xml:lang="fr">La détection de rayonnements ionisants - notamment les neutrons de basse énergie qui sont la signature de matériaux fissibles - est un enjeu majeur pour des applications duales civiles et militaires. La raréfaction de l’hélium 3 indispensable à la production de détecteur nécessite la découverte et la mise au point d’alternative fiable. Le développement de prototypes de détecteurs pour la caractérisation de neutrons permet de répondre aux risques d’accidents technologiques et de terrorisme. Mais ils permettent également l’amélioration de l’analyse de radiations ionisantes en recherche fondamentale. Une approche convergente de la synthèse des matériaux salins luminescents permet d’adresser à la fois la détection et la discrimination de rayonnements ionisants mais également de développer de nouveaux matériaux pour la détection de petites molécules en phase gazeuse. Les matériaux ioniques à base de sels d’imidazolium présentent des propriétés physiques remarquable tout en ayant une structure chimique malléable à façon. Ce projet vise à explorer de nouvelles méthodes pour la synthèse de sels d’imidazolium luminescents et leurs propriétés en détection.</dcterms:abstract>
<dcterms:abstract xml:lang="en">Detector of ionizing radiation is a key challenge for both civil and military applications. New prototype of ionizing radiation discrimination helps us against technological accident and terrorism act. For instance, neutron of low energy is sign of fissile material. However current detectors require helium 3 which is scarce resource. Thus, a sustainable alternative has to be found. A convergent approach to synthesis active luminescent salt materials cope both. It identities and discriminate ionizing radiation. Especially for small cell in gas phase, this approach allows to develop new material to detect them. Based on imidazolium salt, ionic material has remarkable property with the benefit of being scalable.This project aims to explore new synthesis methods of luminescent imidazolium and their properties to identify ionizing radiation characteristic.</dcterms:abstract>
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