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This paper presents the results of sensitivity studies aiming to assess the impact of the AISI 316 ITER structural material composition on the activation characteristics of the in-vessel components. The influence of the protective layer material, namely beryllium, carbon fibre composite, and tungsten, is also analyzed and discussed. Three neutron fluence values are considered: 0.3, 1, and 3 MW y/m{2}, and the related impact on activation results in discussed. The ANITA-2 and the FISPACT-3 activation codes are used, with updated cross sections and decay data libraries based on EAF-3 evaluation files. The 1D-Sn XSDRNPM-S transport code, using the 171 group Vitamin C library based on EFF-2 data, is used to produce the flux weighted spectrum needed for the activation calculations.

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Authors: CAMBI G, University of Bologna, Department of Physics (IT);CEPRAGA D G, ENEA Bologna (IT);ROCCO P, JRC Ispra (IT);ZUCCHETTI M, Politecnico di Torino (IT)
Bibliographic Reference: Article: Journal of Nuclear Materials, Vol. 233-237 (1996) pp. 1505-1510
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