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Abstract

Reports were presented covering a selection of topics on the safety of fusion power plants. These included a review on licensing studies developed for ITER site preparation surveying common and non-common issues (i.e. site dependent) as lessons to a broader approach for fusion power plant safety. Several fusion power plant models, spanning from accessible technology to more advanced-materials based concepts, were discussed. On the topic related to fusion-specific technology, safety studies were reported on different concepts of breeding blanket modules, tritium handling and auxiliary systems under normal and accident scenarios' operation. The testing of power plant relevant technology in ITER was also assessed in terms of normal operation and accident scenarios, and occupational doses and radioactive releases under these testings have been determined. Other specific safety issues for fusion have also been discussed such as availability and reliability of fusion power plants, dust and tritium inventories and component failure databases. This study reveals that the environmental impact of fusion power plants can be minimized through a proper selection of low activation materials and using recycling technology helping to reduce waste volume and potentially open the route for its reutilization for the nuclear sector or even its clearance into the commercial circuit. Computational codes for fusion safety have been presented in support of the many studies reported. The on-going work on establishing validation approaches aiming at improving the prediction capability of fusion codes has been supported by experimental results and new directions for development have been identified. Fusion standards are not available and fission experience is mostly used as the framework basis for licensing and target design for safe operation and occupational and environmental constraints.

Additional information

Authors: GIRARD J PH, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);GULDEN W, EFDA Close Support Unit, Garching (DE);KOLBASOV B, Nuclear Fusion Institute, Kurchatov Institute, Moscow (RU);LOUZEIRO-MALAQUIAS A-J, International Atomic Energy Agency, Vienna (AT);PETTI D, Idaho National Laboratory, Idaho Falls (US);RODRIGUEZ-RODRIGO L, EFDA CSU Barcelona-Asociacion EURATOM-CIEMAT, Barcelona (ES)
Bibliographic Reference: An article published in: Nuclear Fusion 48 015008 (2008)
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/10.1088/0029-5515/48/1/015008
Record Number: 200819693 / Last updated on: 2008-02-15
Category: PUBLICATION
Original language: en
Available languages: en