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Kwon, Saerom*; Konno, Chikara; Honda, Shogo*; Kenjo, Shunsuke*; Sato, Satoshi*
Fusion Engineering and Design, 223, p.115548_1 - 115548_8, 2026/02
Times Cited Count：0 Percentile：0.00(Nuclear Science & Technology)In order to evaluate the accuracy of the iron data in the latest nuclear data libraries (FENDL-3.2b, JENDL-5, ENDF/B-VIII.0 and JEFF-3.3) used in the fusion neutron source design, we performed their benchmark tests by using QST/TIARA iron experiment with quasi mono-energy neutrons of 40 and 65 MeV and JAEA/FNS iron experiment with DT neutrons. From the test results, we have found the following issues; (1) The calculation results with FENDL-3.2b underestimate the measured neutron fluxes of the continuous energy range (10-60 MeV) by a factor of 0.6 in the TIARA experiment with 65 MeV neutrons; (2) The calculation results with FENDL-3.2b tend to underestimate the measured neutron flux above 10 MeV by a factor of 0.8 at depth of 70 cm and overestimate the measured ones below 10 keV by a factor of 1.3 up to depth of 40 cm in the FNS experiment. We investigated those issues in detail and clarified their reasons.
Konno, Chikara; Ochiai, Kentaro; Sato, Satoshi; Ota, Masayuki
Fusion Engineering and Design, 98-99, p.2178 - 2181, 2015/10
Times Cited Count：8 Percentile：49.41(Nuclear Science & Technology)We have analyzed the iron and concrete shielding experiments with the 40 and 65 MeV neutron sources at TIARA in Japan Atomic Energy Agency with the latest high-energy nuclear data libraries, JENDL/HE-2007, ENDF/B-VII.1 and FENDL-3.0. The Monte Carlo code MCNP-5 and ACE files of JENDL/HE-2007, ENDF/B-VII.1 and FENDL-3.0, which were supplied from JAEA, BNL and IAEA, respectively, were used for this analysis. The followings are found out from the results. (1) The calculations with JENDL/HE-2007 agree with all the measured ones well; (2) Those with ENDF/B-VII.1 tend to overestimate the measured ones with the thickness of the assemblies largely; (3) Those with FENDL-3.0 agree with the measured ones well for the iron experiment, while they overestimate the measured ones well for the concrete experiment largely. Some data in ENDF/B-VII.1 and FENDL-3.0 should be revised.
Morimoto, Yuichi*; Ochiai, Kentaro; Sato, Satoshi; Hori, Junichi; Yamauchi, Michinori*; Nishitani, Takeo
Fusion Engineering and Design, 69(1-4), p.643 - 648, 2003/09
Times Cited Count：5 Percentile：35.65(Nuclear Science & Technology)no abstracts in English
Kai, Tetsuya; Maekawa, Fujio; Kasugai, Yoshimi; Niita, Koji*; Takada, Hiroshi; Meigo, Shinichiro; Ikeda, Yujiro
Proceedings of ICANS-XVI, Volume 3, p.1041 - 1049, 2003/07
A radioactivity calculation code system DCHAIN-SP was validated in view of the following points: (1) Activation cross section data library for the energy region below 20 MeV. (2) NMTC/JAM code for calculation of the nuclide yield induced by the high energy particles above 20 MeV. (3) DCHAIN-SP code system which treats overall nuclide yield by the high energy particles. 42 of activation cross sections and 22 tritium production cross sections were revised so that the DCHAIN-SP calculation could improve its accuracy within 30% for typical materials irradiated by 14-MeV neutrons. The NMTC/JAM code was improved to implement the GEM model for better estimation of light fragment production. Accuracy of the nuclide yield for proton induced reactions in 10 MeV - 10 GeV still remains in the level of a factor of 2 to 3. The DCHAIN-SP code system was employed for the analysis of time evolution of the radioactivity produced in the samples on a thick mercury target bombarded with 2.83 and 24 GeV protons. It is found that the code system agrees with the measured data by a factor of 2 to 3.
Kasugai, Yoshimi; Maekawa, Fujio; Ikeda, Yujiro; Takeuchi, Hiroshi
Journal of Nuclear Science and Technology, 38(12), p.1048 - 1056, 2001/12
Activation cross sections for mercury isotopes have been measured at neutron energy between 13.4 and 14.9 MeV by means of the activation method using Fusion Neutronics Source (FNS) at Japan Atomic Energy Research Institute (JAERI). Measured cross sections are 
Hg(n, 2n)
Hg, 
Hg(n, 2n)
Hg, Hg(n, p)
Au, 
Hg(n, p)Au, 
Hg(n, p)
Au, 
Hg(n, p)Au, 
Hg(n, p)Au, 
Hg(n, 2n)
Hg and Hg(n, p)Au. The cross sections of the Hg(n, p)Au and Hg(n, p)Au reactions were measured for the first time. For the Hg(n, 2n)Hg, Hg(n, 2n)Hg, Hg(n, p)Au and Hg(n, p)Au reactions, the cross sections at plural neutron energies were measured for the first time. The present data were compared with the experimental data reported previously and the recent evaluations, and it was shown that some evaluations need to be improved.
Maekawa, Fujio; Ochiai, Kentaro; Shibata, Keiichiro*; Kasugai, Yoshimi; Wada, Masayuki*; Morimoto, Yuichi*; Takeuchi, Hiroshi
Fusion Engineering and Design, 58-59, p.595 - 600, 2001/11
Times Cited Count：13 Percentile：65.53(Nuclear Science & Technology)no abstracts in English
Konno, Chikara; Maekawa, Fujio; Wada, Masayuki*; Ikeda, Yujiro; Takeuchi, Hiroshi
Fusion Engineering and Design, 58-59, p.961 - 965, 2001/11
Times Cited Count：1 Percentile：11.52(Nuclear Science & Technology)no abstracts in English
Maekawa, Fujio; Wada, Masayuki*; Ikeda, Yujiro
Journal of Nuclear Science and Technology, 38(1), p.53 - 62, 2001/01
no abstracts in English
Konno, Chikara; Maekawa, Fujio; Uno, Yoshitomo; Kasugai, Yoshimi; Wada, Masayuki*; Ikeda, Yujiro; Takeuchi, Hiroshi
Fusion Engineering and Design, 51-52(Part.B), p.797 - 802, 2000/11
Times Cited Count：6 Percentile：41.27(Nuclear Science & Technology)no abstracts in English
, LiTiO
and LiZrO assemblies with D-T neutrons; Leakage neutron spectrum measurementMurata, Isao*; Nishio, T.*; Kokooo*; Kondo, T.*; Takagi, H.*; Nakano, D.*; Takahashi, Akito*; Maekawa, Fujio; Ikeda, Yujiro; Takeuchi, Hiroshi
Fusion Engineering and Design, 51-52(Part.B), p.821 - 827, 2000/11
Times Cited Count：11 Percentile：58.39(Nuclear Science & Technology)no abstracts in English
Maekawa, Fujio; Wada, Masayuki*; Konno, Chikara; Kasugai, Yoshimi; Ikeda, Yujiro
Fusion Engineering and Design, 51-52(Part.B), p.809 - 814, 2000/11
Times Cited Count：8 Percentile：49.36(Nuclear Science & Technology)no abstracts in English
Maekawa, Fujio; Konno, Chikara; Wada, Masayuki*; Kasugai, Yoshimi; Oyama, Yukio; Uno, Yoshitomo; Maekawa, Hiroshi; Ikeda, Yujiro
Journal of Nuclear Science and Technology, 37(Suppl.1), p.263 - 267, 2000/03
no abstracts in English
Maekawa, Fujio; Wada, Masayuki*; Ikeda, Yujiro
JAERI-Research 99-055, p.188 - 0, 1999/10
JAERI-Research-99-055.pdf:8.59MB
no abstracts in English
N.P.Taylor*; Ikeda, Yujiro; Bartels, H.-W.*; G.Cambi*; D.G.Ceprage*; E.T.Cheng*; R.A.Forrest*; H.Iida*; H.Y.Khater*; Maekawa, Fujio; et al.
Fusion Engineering and Design, 45(1), p.75 - 88, 1999/00
Times Cited Count：9 Percentile：55.96(Nuclear Science & Technology)no abstracts in English
Maekawa, Fujio; Wada, Masayuki*; ; ; Takahashi, Akito*; Oyama, Yukio
JAERI-Data/Code 98-024, 174 Pages, 1998/11
JAERI-Data-Code-98-024.pdf:6.71MB
no abstracts in English
Ikeda, Yujiro; Kasugai, Yoshimi; Maekawa, Fujio; Uno, Yoshitomo; R.Johnson*; E.T.Cheng*
Fusion Technology, 34(3), p.714 - 718, 1998/11
no abstracts in English
Maekawa, Fujio; Kasugai, Yoshimi; Konno, Chikara; Wada, Masayuki*; Oyama, Yukio; Ikeda, Yujiro; R.Johnson*; E.T.Cheng*; M.Pillon*; Murata, Isao*; et al.
Fusion Technology, 34(3), p.1018 - 1022, 1998/11
no abstracts in English
Konno, Chikara; Maekawa, Fujio; Wada, Masayuki*; Kosako, Kazuaki*
Fusion Technology, 34(3), p.1013 - 1017, 1998/11
no abstracts in English
Kokooo*; Murata, Isao*; Nakano, D.*; Takahashi, Akito*; Maekawa, Fujio; Ikeda, Yujiro
Fusion Technology, 34(3), p.980 - 984, 1998/11
no abstracts in English
Konno, Chikara; Maekawa, Fujio; Oyama, Yukio; Ikeda, Yujiro; Wada, Masayuki*; Maekawa, Hiroshi
Fusion Technology, 34(1), p.6 - 17, 1998/08
no abstracts in English
