IFMIF: the intense neutron source to qualify materials for fusion reactors

Anton Möslang

doi:10.1016/j.crhy.2007.10.018

IFMIF: the intense neutron source to qualify materials for fusion reactors
[L'IFMIF : source intense de neutrons pour la qualification des matériaux pour réacteur de fusion]

Anton Möslang ¹

¹ Forschungszentrum Karlsruhe, Institute of Materials Research I, P.O. Box 3640, 76021 Karlsruhe, Germany

Comptes Rendus. Physique, Volume 9 (2008) no. 3-4, pp. 457-468.

Résumé
Abstract

L'installation IFMIF (International Fusion Materials Irradiation Facility) est un élément majeur du développement international de la production d'énergie à partir de la fusion ainsi que de l'accord sur l'approche élargie entre L'Union Européenne et le Japon dans le cadre du projet ITER (International Thermonuclear Experimental Reactor). IFMIF est une source intense de neutrons qui sont produits, avec un pic de flux autour de 14 MeV, par deux faisceaux de deutons de 40 MeV bombardant une cible de lithium. Dans le module de tests à haut flux (20–55 dpa/an à pleine puissance) douze dispositifs à températures diférentes permettront d'irradier environ 1000 échantillons qualifiés. Les analyses sur la base des versions les plus récentes des codes et bibliothèques de données nucléaires ont montré qu'IFMIF offrira des conditions d'irradiation qui conviennent aux matériaux structuraux et fonctionnels. Après une brève description d'IFMIF, on donne une revue des conditions d'irradiation d'intérêt pour les utilisateurs : le spectre de neutrons, la production de gaz de transmutation en fonction du dommage, les spectres d'énergie des PKA (Primary Knocked-on Atoms) et la possibilité de différentes matrices de tests.

The International Fusion Materials Irradiation Facility, IFMIF, has become a major element in international road maps to fusion power and in the Japanese–European ‘ITER Broader Approach’ agreement. IFMIF is an intense neutron source driven by two 40 MeV deuteron beams striking a joint lithium target producing neutrons with a peak around 14 MeV. In the high flux test module (20–55 dpa/full power year) 12 rigs with individual temperatures allow the simultaneous irradiation of about 1000 qualified specimens. Analyses on the basis of advanced codes and nuclear data libraries have shown that IFMIF offers favorable conditions both for structural and functional materials. After a brief description of IFMIF, an overview on the irradiation conditions is given with special emphasis on users' attractiveness, neutronics, gas production to damage ratios, recoil energy spectra, and possible specimen test matrices.

Publié le : 2008-02-08

DOI : 10.1016/j.crhy.2007.10.018

Keywords: IFMIF, Neutron source, Irradiation damage, Helium embrittlement, Recoil energy spectra, Neutron spectra, Fusion materials
Mot clés : IFMIF, Source de neutrons, Endommagement par rayonnement, Spectres d'énergie de recul, Spectres de neutrons, Matériaux de fusion

Affiliations des auteurs :

Anton Möslang ¹

¹ Forschungszentrum Karlsruhe, Institute of Materials Research I, P.O. Box 3640, 76021 Karlsruhe, Germany

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     title = {IFMIF: the intense neutron source to qualify materials for fusion reactors},
     journal = {Comptes Rendus. Physique},
     pages = {457--468},
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     year = {2008},
     doi = {10.1016/j.crhy.2007.10.018},
     language = {en},
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Anton Möslang. IFMIF: the intense neutron source to qualify materials for fusion reactors. Comptes Rendus. Physique, Volume 9 (2008) no. 3-4, pp. 457-468. doi : 10.1016/j.crhy.2007.10.018. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2007.10.018/

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