Nondestructive Assay of Nuclear Low-Enriched Uranium Spent Fuels for Burnup Credit Application

International audienc

Future MTR capabilities

International audienc

The CEA scientific and technical offer as a designated ICERR by the IAEA first feedback with the prime Affiliates

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Les réacteurs de recherche et d’irradiation

Cet article dresse un panorama des réacteurs de recherche construits et exploités en France depuis la première pile ZOE, en indiquant leur rôle important que ce soit pour la recherche fondamentale ou le soutien à l’industrie nucléaire. Il présente également un état des lieux actuels et se projette dans l’avenir en détaillant notamment le futur réacteur de recherche européen RJH en construction sur le site de Cadarache

La rénovation du réacteur de recherche MASURCA

Le réacteur de recherche du CEA MASURCA situé sur le centre de Cadarache est un réacteur de très faible puissance destiné aux études de physique des coeurs de réacteurs nucléaires à spectre rapide. C’est l’outil de physique expérimental qui a accompagné le développement des réacteurs à neutrons rapides tels que Rapsodie, Phenix et Superphenix. Après 40 années de bons et loyaux services et suite à une analyse d’opportunité qui a montré le rôle de MASURCA dans le cadre du forum Génération IV, le CEA a décidé de rénover cette installation pour la pérenniser. Cet article décrit le réexamen de sûreté qui a été mené et les travaux de rénovation afférents

The future Jules Horowitz Material Testing Reactor: A way for developing international collaboration around a major European irradiation infrastructure

International audienceDevelopment process of a fuel product or a nuclear material before using at an industrial scale in a power reactor ranges from characterization of the material itself under neutronic flux up to its qualification in accidental conditions. Irradiations in Material Testing Reactors (MTRs) are in practice the basis of the whole process, in complement of prediction capabilities gained by modelling. Dedicated experimental reactors play also an important complementary role for some specific integral tests (e.g. RIA tests). Irradiations of precursors in power reactors are often limited to products which present a slight design evolution compare to the standard product or are implemented when a statistical approach is useful for defining a safety criterion.However European MTR park status is characterized by ageing infrastructures, which could cause operational issues in coming years, either on technological or on safety point of views. Moreover some specific supplies related to the public demand could be strongly affected (e.g. radiopharmaceutical targets). To avoid a lack in irradiation capacity offer at European level, CEA launched the Jules Horowitz Material Testing Reactor (JHR) international program, in the frame of a Consortium gathering also EDF (FR), AREVA (FR), European Commission (EU), SCK.CEN (BE), VTT (FI), CIEMAT (SP), STUDSVIK (SE), UJV (CZ), NNL (UK), IAEC (IL), DAE (IN) and as associated partnership JAEA (JP). Some institutions in this list are themselves the flagship of a national Consortium. Discussions for enlarging participation are on-going with other countries, as JHR Consortium is open to new member entrance until JHR completion.The Jules Horowitz Material Testing Reactor (JHR MTR) is under construction at CEA Cadarache in southern France and will be an important international User Facility for RandD in support to the nuclear industry, research centres, regulatory bodies and TSO, and academic institutions. It represents a unique and extremely favourable situation for which future end-users can express very early their needs, thanks to either participation to the JHR Consortium, or to international programs or through bilateral collaborations.A general presentation of this research infrastructure and associated experimental capability has been made at the 9th WWER Fuel Performance Meeting in 2011. Current paper updates in a first part the facility building status and the current design work carried out on irradiation hosting systems for nuclear materials and nuclear fuels and on non-destructive examination benches. Then expected main performances are reviewed and collaborations set up around each study are also underlined, as they often correspond to an in-kind contribution of a Consortium member. Finally, recent developments in the international co-operation around the facility are highlighted, such as for example the CEA candidacy for the IAEA designation as an ICERR (International Center based on Research Reactors) or the numerous staff of secondees working on-site

Reactor Physics Experiments on Zero Power Reactors

International audienc

The future Jules Horowitz Material Testing Reactor: an opportunity for developing international collaborations on a major European irradiation infrastructure

International audienceDevelopment process of a fuel product or a nuclear material before using at an industrial scale in a power reactor ranges from characterization of the material itself under neutronic flux up to its qualification in accidental conditions. Irradiations in Material Testing Reactors (MTRs) are in practice the basis of the whole process, in complement of prediction capabilities gained by modelling. Dedicated experimental reactors play also an important complementary role for some specific integral tests (e.g. RIA tests). Irradiations of precursors in power reactors are often limited to products which present a slight design evolution compare to the standard product or are implemented for further tests when a statistical approach is useful for defining a safety criterion.However European MTR park status is characterized by ageing infrastructures, which could cause operational issues in coming years, either on technological or on safety point of views. Moreover some specific supplies related to the public demand could be strongly affected (e.g. radiopharmaceutical targets). To avoid a lack in irradiation capacity offer at European level, CEA launched the Jules Horowitz Material Testing Reactor (JHR) international program, in the frame of a Consortium gathering also EDF (FR), AREVA (FR), European Commission (EU), SCK.CEN (BE), VTT (FI), CIEMAT (SP), STUDSVIK (SE), UJV (CZ), NNL (UK), IAEC (IL), DAE (IN) and as associated partnership JAEA (JP). Some institutions in this list are themselves the flagship of a national Consortium. Discussions for enlarging participation are on-going with other countries, as JHR Consortium is open to new member entrance until JHR completion.The Jules Horowitz Material Testing Reactor (JHR MTR) is under construction at CEA Cadarache in southern France and will be an important international User Facility for RandD in support to the nuclear industry, research centres, regulatory bodies and TSO, and academic institutions. It represents a unique and extremely favourable situation for which future end-users can express very early their needs, thanks to either participation to the JHR Consortium, or to international programs or through bilateral collaborations.A general presentation of this research infrastructure and associated experimental capability has been made at the 9th WWER Fuel Performance Meeting in 2011. Current paper updates in a first part the facility building status and the current design work carried out on irradiation hosting systems for nuclear materials and nuclear fuels and on non-destructive examination benches. Then expected main performances are reviewed and collaborations set up around each study are also underlined, as they often correspond to an in-kind contribution of a Consortium member. Finally, recent developments in the international co-operation around the facility are highlighted, such as for example the CEA candidacy for the IAEA designation as an ICERR (International Center based on Research Reactors) or the numerous staff of secondees working on-site