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Benchmark experiment on titanium with DT neutron at JAEA/FNS

Ota, Masayuki; Takakura, Kosuke; Ochiai, Kentaro; Sato, Satoshi; Konno, Chikara  

Titanium is contained in lithium titanate, which is a tritium breeding material candidate. In the nuclear design, accurate nuclear data are needed. However, few benchmark experiments had been performed for titanium. Thus we performed a benchmark experiment with a titanium assembly and a DT neutron source at JAEA/FNS. The assembly was a titanium slab of 45 cm$$times$$45 cm$$times$$40 cm covered with 5 or 10 cm thick Li$$_{2}$$O blocks. Dosimetry reaction rates were measured by the foil activation method of niobium, aluminum, indium, gold and tungsten inside the assembly. And fission rates of $$^{235}$$U and $$^{238}$$U were measured by using micro fission chambers. This experiment was analyzed by using Monte Carlo neutron transport code MCNP5-1.40 with recent nuclear data libraries of ENDF/B-VII.0, ENDF/B-VII.1, FENDL-2.1, JEFF-3.1.2, JENDL-3.3, JENDL-4.0, and JENDL-4.0u. The calculation results were compared with the measured one in order to validate nuclear data libraries of titanium.

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Category:Nuclear Science & Technology

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