Community Research and Development Information Service - CORDIS

Abstract

Work is in progress to completely replace, in 2008/9, the existing JET CFC tiles with a configuration of plasma facing materials consistent with the ITER design. The ITER-like wall (ILW) will be created with a combination of beryllium (Be), tungsten (W), W-coated CFC and Be-coated inconel tiles, with the material depending on the local anticipated heat flux and geometry. It is part of an integrated package of JET enhancements whose aim is to develop an understanding of the ITER materials issues and develop the techniques required to operate with inductive and advanced scenarios as close as possible to ITER parameters. Over 4000 tiles will be replaced and the ILW will accommodate additional heating up to at least 50 MW for 10 s. This paper describes the scientific background to the project, the technical objectives, the material configuration selected, the R&D behind the practical realization of the objectives and the generic problems associated with the Be tiles (power handling capacity and disruption induced eddy currents). One of the objectives is to maintain or improve the existing CFC tile power handling performance which has been achieved in most cases by hiding bolt holes, optimizing tile size and profile and introducing castellations on plasma facing surfaces.

Additional information

Authors: MATTHEWS G F, EURATOM-UKAEA Fusion Association, Culham Science Centre, Abingdon (GB);EDWARDS P, EURATOM-UKAEA Fusion Association, Culham Science Centre, Abingdon (GB);KEAR M, EURATOM-UKAEA Fusion Association, Culham Science Centre, Abingdon (GB);LOMAS P, EURATOM-UKAEA Fusion Association, Culham Science Centre, Abingdon (GB);LOVING A, EURATOM-UKAEA Fusion Association, Culham Science Centre, Abingdon (GB);NEILSON D, EURATOM-UKAEA Fusion Association, Culham Science Centre, Abingdon (GB);RICCARDO V, EURATOM-UKAEA Fusion Association, Culham Science Centre, Abingdon (GB);WAY M, EURATOM-UKAEA Fusion Association, Culham Science Centre, Abingdon (GB);HIRAI T, Forschungszentrum Jülich GmbH, EURATOM Association, Jülich (DE);MERTENS P, Forschungszentrum Jülich GmbH, EURATOM Association, Jülich (DE);PHILIPPS V, Forschungszentrum Jülich GmbH, EURATOM Association, Jülich (DE);LIOURE A, EFDA-Close Support Unit, Culham Science Centre, Abingdon (GB);PIAZZA G, EFDA-Close Support Unit, Culham Science Centre, Abingdon (GB);LUNGU C, Nat. Inst. for Laser, Plasma and Radiation Physics, Association Euratom-MEdC, Bucharest (RO);RUSET C, Nat. Inst. for Laser, Plasma and Radiation Physics, Association Euratom-MEdC, Bucharest (RO);MAIER H, Max-Planck-Institut für Plasmaphysik, IPP-EURATOM Association, Garching (DE);NEU R, Max-Planck-Institut für Plasmaphysik, IPP-EURATOM Association, Garching (DE);PAMELA J, EFDA Close Support Unit, Garching (DE);RUBEL M, Alfvén Laboratory, Royal Institute of Technology (KTH), Association EURATOM-VR, Stockholm (SE);VILLEDIEU E, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: An article published in: Physica Scripta T128 (2007), pp. 137-143
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/10.1088/0031-8949/2007/T128/027
Follow us on: RSS Facebook Twitter YouTube Managed by the EU Publications Office Top