Benchmark experiments to validate the nuclear data of tungsten

Two experiments were carried out and analysed in order to test tools used for the nuclear design of fusion devices. Neutron and photon flux spectra were measured in a thick tungsten assembly during irradiation with D-T neutrons. They were analysed with the Monte Carlo transport code MCNP-4C using nu...

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Bibliographic Details
Published in:Fusion engineering and design 2006-02, Vol.81 (8), p.1211-1217
Main Authors: Seidel, K., Eichin, R., Fischer, U., Forrest, R.A., Freiesleben, H., Leichtle, D., Negoita, C., Unholzer, S.
Format: Article
Language:English
Subjects:
Applied sciences
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Flux spectra
Fusion neutronics
Installations for energy generation and conversion: thermal and electrical energy
Nuclear data
Radioactivity
Tungsten
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Summary:Two experiments were carried out and analysed in order to test tools used for the nuclear design of fusion devices. Neutron and photon flux spectra were measured in a thick tungsten assembly during irradiation with D-T neutrons. They were analysed with the Monte Carlo transport code MCNP-4C using nuclear data of the libraries FENDL-2, EFF-2.4 and JENDL-3.3. Small pieces of tungsten were irradiated with D-T neutrons, and the neutron-induced activities measured after the irradiation, were analysed with the inventory code FISPACT using data of the libraries EAF-2003 and FENDL/A-2. Deviations of experimental from calculated results show that an improvement of the tungsten data base is required. Tungsten is widely proposed for use in plasma facing components of future fusion devices.
ISSN:0920-3796
1873-7196
DOI:10.1016/j.fusengdes.2005.09.050