Abstract
The importance of the design for the realization of an intense 14 MeV neutron facility devoted to test and validate materials suitable for harsh neutron environments, such as a fusion reactor, is well established. The “New Sorgentina” Fusion Source (NSFS) is a project that proposes an intense D-T 14 MeV neutron source achievable with T and D ion beams impinging on 2 m radius rotating targets. NSFS may produce about 1015 n/s at the target and has to be intended as an European facility that maybe realized in a few years, once provided a preliminary technological program devoted to the operation of the ion source in continuous mode, target heat loading/removal, target and tritium handling, inventor as well as site licensing. In this contribution, the main characteristics of NSFS project will be presented and its possible use as a multipurpose facility outlined.
Highlights
The investigation on structural materials to be used on generation fusion machines, where intense fluxes of neutrons are expected is of paramount importance
The evaluation of the “atomic reactions-induced” damages in metallic materials upon neutron irradiation is given in terms of the so-called displacement per atom, defined as the number of times (Nd) that an atom is displaced for a given fluence: Nd = N0ıdφTr, N0 being the number of atoms in the specimen, ıd its dpa cross section, φ the neutron flunce rate and Tr the irradiation time
The interplay of “atomic damages” and “nuclear damages”, e.g. transmutation, affects materials in different way: swelling, ductility loss, increased probability of crack propagation and increased creeping rate, just to mention a few examples. These effects and their correct investigation and evaluation have a deep impact in the choice of the materials and on the overall costs of a fusion reactor
Summary
This content has been downloaded from IOPscience. Please scroll down to see the full text. Ser. 746 012037 (http://iopscience.iop.org/1742-6596/746/1/012037) View the table of contents for this issue, or go to the journal homepage for more. Download details: IP Address: 192.107.52.30 This content was downloaded on 13/10/2016 at 08:02 Please note that terms and conditions apply.
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