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Kirihara, Yoichi; Nakashima, Hiroshi; Sanami, Toshiya*; Namito, Yoshihito*; Itoga, Toshiro*; Miyamoto, Shuji*; Takemoto, Akinori*; Yamaguchi, Masashi*; Asano, Yoshihiro*
Journal of Nuclear Science and Technology, 57(4), p.444 - 456, 2020/04
Times Cited Count：8 Percentile：61.18(Nuclear Science & Technology)no abstracts in English
Fe(
, n)
Fe reaction with a linearly polarized -ray beamHayakawa, Takehito; Shizuma, Toshiyuki; Miyamoto, Shuji*; Amano, Sho*; Takemoto, Akinori*; Yamaguchi, Masashi*; Horikawa, Ken*; Akimune, Hidetoshi*; Chiba, Satoshi*; Ogata, Kazuyuki*; et al.
Physical Review C, 93(4), p.044313_1 - 044313_4, 2016/04
Times Cited Count：7 Percentile：48.93(Physics, Nuclear)We have measured the azimuthal anisotropy of neutrons emitted from the Fe(, n)Fe reaction with a linearly polarized ray beam generated by laser Compton scattering at NewSUBARU. Neutron yields at the polar angle of 90
have been measured as a function of the azimuthal angle 
between the detector and the linear polarization plane of the ray beam. The azimuthal anisotropy of neutrons measured at seven angles has been well reproduced using a theoretically predicted function of 
+ 
cos(2).
Naganuma, Masaki; Ohara, Yoshiyuki; Miyamoto, Yasunori*; Murashita, Tatsuya*; Makita, Akinori*; Nohiro, Tetsuya*
JAEA-Technology 2014-012, 11 Pages, 2014/06
JAEA-Technology-2014-012.pdf:1.06MB
In Japan Atomic Energy Agency Ningyo-toge environmental engineering center, exploration for uranium and technical development of uranium refining, conversion and enrichment which are the front end of a nuclear fuel cycle have been performed since 1955. In 2002, we introduced Q2 low-level-waste drum measuring system which is a bulk measuring method of the passive ray. In 2007, OS2 analyzing operation system which was used in Q2, was replaced with windows system. This replacement improved the performance of the analysis of Q2. But quantified values of uranium obtained from win system did not correspond exactly to OS2 system. We considered whether the drum which was measured by OS2 system, was measured again by windows system. But it was difficult to measure these drum by win system. So in this study, we studied a calculation method for adjusting quantified values of uranium obtained by each system.
Hirata, Yosuke*; Nakahara, Katsuhiko*; Sano, Akira*; Sato, Mitsuyoshi*; Aoyama, Yoshio; Miyamoto, Yasuaki; Yamaguchi, Hiromi; Nambu, Kenichi*; Takahashi, Hiroyuki*; Oda, Akinori*
Journal of Power and Energy Systems (Internet), 2(2), p.561 - 572, 2008/00
Aoyama, Yoshio; Miyamoto, Yasuaki; Yamaguchi, Hiromi; Sano, Akira*; Naito, Susumu*; Sumida, Akio*; Izumi, Mikio*; Maekawa, Tatsuyuki*; Sato, Mitsuyoshi*; Nambu, Kenichi*; et al.
Proceedings of 15th International Conference on Nuclear Engineering (ICONE-15) (CD-ROM), 6 Pages, 2007/04
no abstracts in English
Hirata, Yosuke*; Nakahara, Katsuhiko*; Sano, Akira*; Sato, Mitsuyoshi*; Aoyama, Yoshio; Miyamoto, Yasuaki; Yamaguchi, Hiromi; Nambu, Kenichi*; Takahashi, Hiroyuki*; Oda, Akinori*
Proceedings of 15th International Conference on Nuclear Engineering (ICONE-15) (CD-ROM), 6 Pages, 2007/04
no abstracts in English
Somaki, Takahiro*; Miyamoto, Akinori*
JNC TJ9410 2005-001, 101 Pages, 2004/11
JNC-TJ9410-2005-001.pdf:5.17MB
In this study, supporting structure for the seismic horizontal force and the common deck structure were taken concrete shapes, and the feasibility studies were carried out. Furthermore, the influence on design method of coned disk spring by creep phenomenon was investigated, test pieces for investigating the long-range stability of friction coefficient were manufactured.
Somaki, Takahiro*; Miyamoto, Akinori*
JNC TJ9420 2003-005, 129 Pages, 2003/02
JNC-TJ9420-2003-005.pdf:4.62MB
In order to realize the concept of a vertical isolation system called common deck system, research and development on the vertical isolation structure is now underway. In its first step, structure plans of each of the isolation element and the damper element will be drawn up, and in the next step, tests on these elements will be planed, executed, analyzed, and evaluated, to be reflected to the structure plan. In this report, the study of analysis, the structure plan and test plan of vertical isolation devices is reported. /The appropriateness of analysis was confirmed by comparison between test results and analysis results. And the loading mechanism and the stress condition of dish spring as piling five lines were analyzed./The formula of Creep was examined on creep test results. And the influence of amount of deformation by creep behavior was made clear on the life of building./The characteristic of loading in actual typical model was presumed by test results, design formula and FEM analysis. These results were mostly coincided and the appropriateness of design method was confirmed./Response displacement of a vertical isolation and response acceleration of primary instruments were analyzed and confirmed beyond restriction values by dynamic analysis./The total fabrication of isolation device and each component were drowned on the result of these studies./The scale of test model was estimated and the map of test model was drowned. And several test plans reflects design guideline were made.
Somaki, Takahiro*; Miyamoto, Akinori*; *
JNC TJ9420 2003-001, 341 Pages, 2003/01
JNC-TJ9420-2003-001.pdf:1.18MB
In order to realize the concept of a vertical isolation system (common deck system), research and development on the vertical isolation structure is now underway. In its first step, structure plans of each of the isolation element and the damper element will be drawn up, and in the next step, tests on these elements will be planed, executed, analyzed, and evaluated, to be reflected to the structure plane. In this report, the structure plan and test plan of damper element is reported. At first, it was concluded in the previous work that the steel-materials damper which can be evaluated by Ramberg-Osgood type is applicable to the vertical isolation system required performance.
Kitamura, Seiji; Ito, Kei; Miyamoto, Akinori*; *
Transactions of 17th International Conference on Structural Mechanics in Reactor Technology (SMiRT-17) (CD-ROM), 0 Pages, 2003/00
None
Kitamura, Seiji; Miyamoto, Akinori*; *
Transactions of 17th International Conference on Structural Mechanics in Reactor Technology (SMiRT-17) (CD-ROM), 0 Pages, 2003/00
None
Aoyama, Yoshio; Miyamoto, Yasuaki; Yamaguchi, Hiromi; Izumi, Mikio*; Naito, Susumu*; Yamamoto, Shuji*; Sano, Akira*; Nambu, Kenichi*; Takahashi, Hiroyuki*; Oda, Akinori*
no journal, ,
no abstracts in English
Miyamoto, Yasuaki; Yamaguchi, Hiromi; Naito, Susumu*; Sano, Akira*; Hirata, Yosuke*; Noda, Etsuo*; Nambu, Kenichi*; Takahashi, Hiroyuki*; Oda, Akinori*
no journal, ,
no abstracts in English
Miyamoto, Yasuaki; Yamaguchi, Hiromi; Hirata, Yosuke*; Sano, Akira*; Sato, Mitsuyoshi*; Nambu, Kenichi*; Takahashi, Hiroyuki*; Oda, Akinori*
no journal, ,
no abstracts in English
Aoyama, Yoshio; Miyamoto, Yasuaki; Yamaguchi, Hiromi; Sano, Akira*; Naito, Susumu*; Sumida, Akio*; Sato, Mitsuyoshi*; Nambu, Kenichi*; Takahashi, Hiroyuki*; Oda, Akinori*
no journal, ,
no abstracts in English
Aoyama, Yoshio; Miyamoto, Yasuaki; Yamaguchi, Hiromi; Naito, Susumu*; Sano, Akira*; Hirata, Yosuke*; Noda, Etsuo*; Sato, Mitsuyoshi*; Nambu, Kenichi*; Takahashi, Hiroyuki*; et al.
no journal, ,
no abstracts in English
Aoyama, Yoshio; Miyamoto, Yasuaki; Yamaguchi, Hiromi; Hirata, Yosuke*; Naito, Susumu*; Sano, Akira*; Nakahara, Katsuhiko*; Sato, Mitsuyoshi*; Nambu, Kenichi*; Takahashi, Hiroyuki*; et al.
no journal, ,
no abstracts in English
Aoyama, Yoshio; Miyamoto, Yasuaki; Yamaguchi, Hiromi; Naito, Susumu*; Sano, Akira*; Izumi, Mikio*; Sumida, Akio*; Maekawa, Tatsuyuki*; Sato, Mitsuyoshi*; Nambu, Kenichi*; et al.
no journal, ,
Radioactive waste contaminated by Uranium has been accumulated in front-end facilities of the nuclear fuel cycle. The purpose of the present project is to develop the practical and highly efficient measurement system, which solves the above-mentioned requirements based on the innovative concept of indirect alpha radioactivity measurement using ionized air stream transportation. The ionized air by alpha particles near the waste is peeled and transported into the ion sensor by controlling air stream in the measurement system. In order to give the actual solution for this indirect measurement concept, we have to clarify various basic physics concerning with radiation ionizing process in the air, ion reaction process in the air, ion transportation process by the turbulent air flow, and measurement process in the ion sensor. For this purpose, we have to develop various analytical simulation technologies for predicting ion behavior as well as direct measurement technologies of ion spatial distribution. The final target of the project is to establish the practical and verified clearance confirmation technology based on the above-mentioned physical and technological knowledge.
Watakabe, Tomoyoshi; Kitamura, Seiji; Tsukimori, Kazuyuki; Moriizumi, Makoto*; Miyamoto, Akinori*; Morishita, Masaki
no journal, ,
Piping in a nuclear power plant puts across each floor at the same building or between two buildings, and it has many supported points. Therefore, the piping should be as a model subjected to multiple inputs in seismic analysis, but there isn't almost knowledge concerned with analysis for multiple inputs. In this paper, the analysis by using TDOF model having two supported points, and the shaking test by using U-bend piping test piece having two supported points was performed to investigate response of piping subjected to multiple inputs. As a result, the possibility of response analysis for piping subjected to multiple inputs was confirmed.
raysShizuma, Toshiyuki; Omer, M.; Hayakawa, Takehito; Ogaki, Hideaki*; Yamaguchi, Masashi*; Takemoto, Akinori*; Miyamoto, Shuji*
no journal, ,
no abstracts in English
