EXPERIMENTAL ANALYSES OF SPALLATION NEUTRONS GENERATED BY 100 MEV PROTONS AT THE KYOTO UNIVERSITY CRITICAL ASSEMBLY
Neutron spectrum analyses of spallation neutrons are conducted in the accelerator-driven system (ADS) facility at the Kyoto University Critical Assembly (KUCA). High-energy protons (100 MeV) obtained from the fixed field alternating gradient accelerator are injected onto a tungsten target, whereby t...
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Elsevier
2013-02-01
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| Series: | Nuclear Engineering and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573315300103 |
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| author | CHEOL HO PYEON TETSUSHI AZUMA YUKI TAKEMOTO TAKAHIRO YAGI TSUYOSHI MISAWA |
| author_facet | CHEOL HO PYEON TETSUSHI AZUMA YUKI TAKEMOTO TAKAHIRO YAGI TSUYOSHI MISAWA |
| author_sort | CHEOL HO PYEON |
| collection | DOAJ |
| description | Neutron spectrum analyses of spallation neutrons are conducted in the accelerator-driven system (ADS) facility at the Kyoto University Critical Assembly (KUCA). High-energy protons (100 MeV) obtained from the fixed field alternating gradient accelerator are injected onto a tungsten target, whereby the spallation neutrons are generated. For neutronic characteristics of spallation neutrons, the reaction rates and the continuous energy distribution of spallation neutrons are measured by the foil activation method and by an organic liquid scintillator, respectively. Numerical calculations are executed by MCNPX with JENDL/HE-2007 and ENDF/B-VI libraries to evaluate the reaction rates of activation foils (bismuth and indium) set at the target and the continuous energy distribution of spallation neutrons set in front of the target. For the reaction rates by the foil activation method, the C/E values between the experiments and the calculations are found around a relative difference of 10%, except for some reactions. For continuous energy distribution by the organic liquid scintillator, the spallation neutrons are observed up to 45 MeV. From these results, the neutron spectrum information on the spallation neutrons generated at the target are attained successfully in injecting 100 MeV protons onto the tungsten target. |
| first_indexed | 2024-12-10T09:25:13Z |
| format | Article |
| id | doaj.art-e5ae832dff194cb58a103d9e6b692d59 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-12-10T09:25:13Z |
| publishDate | 2013-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-e5ae832dff194cb58a103d9e6b692d592022-12-22T01:54:34ZengElsevierNuclear Engineering and Technology1738-57332013-02-01451818810.5516/NET.08.2012.003EXPERIMENTAL ANALYSES OF SPALLATION NEUTRONS GENERATED BY 100 MEV PROTONS AT THE KYOTO UNIVERSITY CRITICAL ASSEMBLYCHEOL HO PYEON0TETSUSHI AZUMA1YUKI TAKEMOTO2TAKAHIRO YAGI3TSUYOSHI MISAWA4Nuclear Engineering Science Division, Research Reactor Institute, Kyoto University Asashiro-nishi, Kumatori-cho, Sennan-gun, Osaka 590-0494, JapanDepartment of Fundamental Energy Science, Graduate School of Energy Science, Kyoto University Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, JapanDepartment of Fundamental Energy Science, Graduate School of Energy Science, Kyoto University Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, JapanNuclear Engineering Science Division, Research Reactor Institute, Kyoto University Asashiro-nishi, Kumatori-cho, Sennan-gun, Osaka 590-0494, JapanNuclear Engineering Science Division, Research Reactor Institute, Kyoto University Asashiro-nishi, Kumatori-cho, Sennan-gun, Osaka 590-0494, JapanNeutron spectrum analyses of spallation neutrons are conducted in the accelerator-driven system (ADS) facility at the Kyoto University Critical Assembly (KUCA). High-energy protons (100 MeV) obtained from the fixed field alternating gradient accelerator are injected onto a tungsten target, whereby the spallation neutrons are generated. For neutronic characteristics of spallation neutrons, the reaction rates and the continuous energy distribution of spallation neutrons are measured by the foil activation method and by an organic liquid scintillator, respectively. Numerical calculations are executed by MCNPX with JENDL/HE-2007 and ENDF/B-VI libraries to evaluate the reaction rates of activation foils (bismuth and indium) set at the target and the continuous energy distribution of spallation neutrons set in front of the target. For the reaction rates by the foil activation method, the C/E values between the experiments and the calculations are found around a relative difference of 10%, except for some reactions. For continuous energy distribution by the organic liquid scintillator, the spallation neutrons are observed up to 45 MeV. From these results, the neutron spectrum information on the spallation neutrons generated at the target are attained successfully in injecting 100 MeV protons onto the tungsten target.http://www.sciencedirect.com/science/article/pii/S1738573315300103ADSKUCASpallation NeutronsHigh-energy ProtonsReaction ratesContinuous Energy Distribution |
| spellingShingle | CHEOL HO PYEON TETSUSHI AZUMA YUKI TAKEMOTO TAKAHIRO YAGI TSUYOSHI MISAWA EXPERIMENTAL ANALYSES OF SPALLATION NEUTRONS GENERATED BY 100 MEV PROTONS AT THE KYOTO UNIVERSITY CRITICAL ASSEMBLY Nuclear Engineering and Technology ADS KUCA Spallation Neutrons High-energy Protons Reaction rates Continuous Energy Distribution |
| title | EXPERIMENTAL ANALYSES OF SPALLATION NEUTRONS GENERATED BY 100 MEV PROTONS AT THE KYOTO UNIVERSITY CRITICAL ASSEMBLY |
| title_full | EXPERIMENTAL ANALYSES OF SPALLATION NEUTRONS GENERATED BY 100 MEV PROTONS AT THE KYOTO UNIVERSITY CRITICAL ASSEMBLY |
| title_fullStr | EXPERIMENTAL ANALYSES OF SPALLATION NEUTRONS GENERATED BY 100 MEV PROTONS AT THE KYOTO UNIVERSITY CRITICAL ASSEMBLY |
| title_full_unstemmed | EXPERIMENTAL ANALYSES OF SPALLATION NEUTRONS GENERATED BY 100 MEV PROTONS AT THE KYOTO UNIVERSITY CRITICAL ASSEMBLY |
| title_short | EXPERIMENTAL ANALYSES OF SPALLATION NEUTRONS GENERATED BY 100 MEV PROTONS AT THE KYOTO UNIVERSITY CRITICAL ASSEMBLY |
| title_sort | experimental analyses of spallation neutrons generated by 100 mev protons at the kyoto university critical assembly |
| topic | ADS KUCA Spallation Neutrons High-energy Protons Reaction rates Continuous Energy Distribution |
| url | http://www.sciencedirect.com/science/article/pii/S1738573315300103 |
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