Nuclear Engineering and Technology (Sep 2017)

Benchmarks of subcriticality in accelerator-driven system at Kyoto University Critical Assembly

  • Cheol Ho Pyeon,
  • Masao Yamanaka,
  • Song-Hyun Kim,
  • Thanh-Mai Vu,
  • Tomohiro Endo,
  • Willem Fredrik G. Van Rooijen,
  • Go Chiba

DOI
https://doi.org/10.1016/j.net.2017.06.012
Journal volume & issue
Vol. 49, no. 6
pp. 1234 – 1239

Abstract

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Basic research on the accelerator-driven system is conducted by combining 235U-fueled and 232Th-loaded cores in the Kyoto University Critical Assembly with the pulsed neutron generator (14 MeV neutrons) and the proton beam accelerator (100 MeV protons with a heavy metal target). The results of experimental subcriticality are presented with a wide range of subcriticality level between near critical and 10,000 pcm, as obtained by the pulsed neutron source method, the Feynman-α method, and the neutron source multiplication method.

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