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Title: Preliminary study on the thorium-loaded accelerator-driven system with 100MeV protons at the Kyoto University Critical Assembly
Authors: Pyeon, Cheol Ho  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0003-0620-1711 (unconfirmed)
Lim, Jae-Yong
Takemoto, Yuki
Yagi, Takahiro  KAKEN_id
Azuma, Tetsushi
Kim, Haksung
Takahashi, Yoshiyuki  kyouindb  KAKEN_id
Misawa, Tsuyoshi  kyouindb  KAKEN_id
Shiroya, Seiji
Author's alias: 卞, 哲浩
Keywords: ADS
KUCA
100 MeV protons
Thorium
Issue Date: Oct-2011
Publisher: Elsevier Ltd.
Journal title: Annals of Nuclear Energy
Volume: 38
Issue: 10
Start page: 2298
End page: 2302
Abstract: At the Kyoto University Critical Assembly (KUCA), spallation neutrons generated by high-energy proton beams are injected into the thorium-loaded systems on March 2010. By combining the Fixed Field Alternating Gradient (FFAG) accelerator with the thorium-loaded system at KUCA, a series of the ADS experiments is carried out under conditions whereby the spallation neutrons are generated at a tungsten target by 100 MeV protons at an intensity of 30 pA. Prompt neutron behavior in the time evolution is observed and thorium fission reactions are attained through the experiments and calculations, respectively. And the effects of neutron leakage and spectrum softening are experimentally observed through the neutron multiplication and reaction rate analyses. From the experimental and numerical analyses, in the future, experimental conditions need to be improved to attain further neutron multiplication using the variation of fuels (thorium, highly-enriched and natural uranium) and moderators (graphite, polyethylene, aluminum and beryllium).
Rights: © 2011 Elsevier Ltd.
この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
This is not the published version. Please cite only the published version.
URI: http://hdl.handle.net/2433/147269
DOI(Published Version): 10.1016/j.anucene.2011.06.024
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