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Aritomo, Yoshihiro; Chiba, Satoshi; Hashimoto, Shintaro; Utsuno, Yutaka; Koura, Hiroyuki
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no abstracts in English
Li+n inelastic reactions in the Continuum Discredited Coupled Channels (CDCC) methodIchinkhorloo, D.*; Matsumoto, Takuma*; Hirabayashi, Yoshiharu*; Kato, Kiyoshi*; Chiba, Satoshi
no journal, ,
The few-body, especially three-body, problem is still an open (and therefore interesting) subject in nuclear physics, and has been studied intensively by various theoretical frameworks. The n + Li reactions are important not only from the basic interest but also from the application point of view. The Li nucleus is well described by the cluster model such as 
+ d and + p + n. Therefore, it is necessary for us to treat the n + Li system with + p + n and + p + n + n models. In this work, we study the Li+n inelastic reactions applying the + d cluster model to Li and using the continuum-discredited coupled-channels (CDCC) approach.
Ebine, Masumi; Katagiri, Masaki*; Nakamura, Tatsuya; Birumachi, Atsushi; Hosoya, Takaaki*
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no abstracts in English
Shimada, Taro; Takamura, Atsushi*; Kamiya, Atsushi*; Sukegawa, Takenori; Tanaka, Tadao
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Dispersion ratios, size distribution of particles and filtration efficiencies were measured when piping for reactor cooling system at Fugen reactor was segmented in the contamination control enclosure. Dispersion ratio of Co-60 was observed to be 18 to 23% for normal piping and that to be 34 to 43% for vertically segmented piping, which was half of the normal. Filtration efficiency of pre-filter was observed to be 55 to 80%, while particles smaller than 1micrometer were not able to be collected. It was confirmed that the filtration efficiency of HEPA filter was more than 99.9% for Co-60.
Amamoto, Ippei; Kofuji, Hirohide; Tsuzuki, Tatsuya*; Mitamura, Naoki*; Takasaki, Yasushi*; Shibayama, Atsushi*; Yano, Tetsuji*; Terai, Takayuki*
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Patent publication (In Japanese)
no abstracts in English
Tamura, Itaru; Arai, Masaji; Komeda, Masao; Sagawa, Hisashi
no journal, ,
no abstracts in English
Kawase, Keigo; Shimomura, Takuya; Kando, Masaki; Yoshida, Hidetsugu*; Bulanov, S. V.
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In the development of the Compton backscattered X-ray source by using the Microtron accelerator and the Nd:YAG laser, we are constructing the laser pulse compression system via stimulated Brillouin scattering for increasing the flux of the X-ray beam. In this annual meeting, we report the present status of the development of the pulse-compression system.
Hirose, Takanori; Tanigawa, Hiroyasu; Enoeda, Mikio
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no abstracts in English
Nakagawa, Akinori; Sone, Tomoyuki; Sasaki, Toshiki; Nakazawa, Osamu; Tashiro, Kiyoshi
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no abstracts in English
Li, Y.; Kaji, Yoshiyuki; Igarashi, Takahiro
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Yoshida, Hiroyuki; Hosoi, Hideaki; Suzuki, Takayuki*
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no abstracts in English
Hosoi, Hideaki; Yoshida, Hiroyuki
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no abstracts in English
Kim, S.-Y.; Morita, Yasuji; Hakamatsuka, Yasuyuki; Ueno, Fumiyoshi; Yamamoto, Masahiro; Uchiyama, Gunzo; Nojima, Yasuo*; Fujine, Sachio*
no journal, ,
Electrochemical data of Pu and Np at stainless steel electrode and platinum electrode are obtained as fundamental data for the effect of these elements on the material corrosion at the boiling surface. Natural electric potential became constant within 1 hour and the existence of these elements increased the potential.
Nagai, Takayuki; Kikuchi, Kotaro*; Kano, Yoshiharu*; Hirano, Hiroyasu
no journal, ,
On the dry reprocessing process study by using a molten sodium molybdate, the SUS316 stainless steel of clad material was dissolved into the melt. In this study, we carried out the immersed corrosion test of Fe, Cr, and Ni in molten sodium molybdate, and estimated the corrosion behavior of these material and dissolution content in the melt.
-radiolysis of extractant for separation of minor actinides by helium ion beamSugo, Yumi; Taguchi, Mitsumasa; Sasaki, Yuji; Hirota, Koichi; Morita, Yasuji
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no abstracts in English
Otani, Hiroshi
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no abstracts in English
Hayashi, Hirokazu; Sano, Kazuya; Morishita, Yoshitsugu; Shigeta, Tatsuo*; Amada, Kenichi*
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no abstracts in English
Maekawa, Keisuke; Ishii, Eiichi; Shimo, Michito*; Kumamoto, So*
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no abstracts in English
Nakayama, Hiromasa; Nagai, Haruyasu
no journal, ,
The dispersion analysis of airborne contaminant including radioactive substances from industrial or nuclear facilities is the important issue for maintenance of air quality or safety assessment. In Japan, many nuclear power plants are located at complex coastal terrains. In this case, terrain effects on the turbulent flow and plume dispersion should be investigated. Therefore, we perform Large-Eddy Simulations (LES) on turbulent flow and plume dispersion over a 2-dimensional hill flow and investigate the characteristics of mean and fluctuation concentrations.
Nakase, Masahiko*; Chiba, Go; Saito, Masaki*
no journal, ,
Higher-order eigenvalues can be useful indices for reactor core stability. Usually, higher-order eiganvalues are calculated with the subtraction method in which several numerical techniques are necessary. In this present study, we develop a simple method to estimate higher-order eigenvalues from a residual of power iteration. Through numerical calculations with the IAEA benchmark problem, the present method estimates higher-order eigenvalues up to the 5th order quite well.