Measurements of fusion neutron induced activation and decay heat in rhenium. Comparison with code predictions

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Abstract

Tungsten is a common material used when heavy thermal flux load must be supported. The International Thermonuclear Experimental Reactor (ITER) will make use of large quantities of Tungsten in the high thermal flux zones like the plasma divertor. The possibility to use W on the first wall, facing the plasma is considered as well. The activation properties of the materials used for next generation of fusion facilities are carefully studied in order to reduce the radiation inventory and hazard. Specific "ad hoc" computer codes and databases are under development in the fusion community to predict the radiation issue in ITER. The activation databases for the most important ITER structural materials have been already validated. Presently studies of the activation properties of the most important material impurities are under way. Rhenium is one of the most common impurity elements in Tungsten. In this paper the activation characteristics of Rhenium have been studied, irradiating some samples with the 14 MeV neutrons produced with the Frascati Neutron Generator (FNG) and measuring the induced gamma and beta activation. The experimental results have been compared with the FISPACT code prediction, using the latest version of the European Activation File, EAF-2007. The results of the comparison and the uncertainty analysis are presented in the paper.
Original languageEnglish
Publication statusPublished - 2007
Externally publishedYes
Event8th International Topical Meeting on Nuclear Applications and Utilization of Accelerators, ACCAPP'07 - , United States
Duration: 1 Jan 2007 → …

Conference

Conference8th International Topical Meeting on Nuclear Applications and Utilization of Accelerators, ACCAPP'07
CountryUnited States
Period1/1/07 → …

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All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering

Cite this

Pillon, M., Angelone, M., & Sandri, S. (2007). Measurements of fusion neutron induced activation and decay heat in rhenium. Comparison with code predictions. Paper presented at 8th International Topical Meeting on Nuclear Applications and Utilization of Accelerators, ACCAPP'07, United States.