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Nuclear Data Benchmarking for Lead by LiAl/Pb Fusion Blanket Mock-Up Experiment

Keitaro Kondo, Isao Murata, Axel Klix, Klaus Seidel, Hartwig Freiesleben

Nuclear Technology

Volume 168 / Number 3 / December 2009 / Pages 591-595


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For the International Thermonuclear Experimental Reactor (ITER), the European Union intends to introduce a test blanket module using liquid lithium lead. In the present study, a preliminary experiment was conducted using a LiAl/Pb assembly, which has a neutronics performance similar to lithium lead. The neutron spectrum at the inside of the assembly was measured with an NE-213 detector. We found that the spectra calculated with MCNP5 and JENDL-3.3 underestimate the 14-MeV peak by no less than 30%, while ENDF/B-VII.0 and JEFF-3.1 gave good agreement. The neutron nuclear data of lead stored in JENDL-3.3 may have some problems.

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