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Search Results: Records 1-20 displayed on this page of 282

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Oral presentation

Study on reprocessing of lower decontamination and fluoride conversion for enrichment; Optimizing backend with next reprocessing plant

Koma, Yoshikazu; Nakamura, Hirofumi

no journal, , 

When planning the next reprocessing plant for light water reactor fuel, introducing Advanced Aqueous Reprocessing technologies for a fast reactor fuel is considered to be an option for optimizing backend with lowering decontamination for U product from reprocessing and also consideration on decontamination in fluoride conversion.

Oral presentation

Effective cross section of the $$^{243}$$Am(n,$$gamma$$)$$^{244g}$$Am reaction and $$gamma$$-ray emission probabilities of $$^{244g}$$Am

Nakamura, Shoji; Ota, Masayuki; Harada, Hideo; Shirai, Osamu*; Yamana, Hajimu*

no journal, , 

no abstracts in English

Oral presentation

Study on redox equilibrium of UO$$_{2}$$$$^{2+}$$/UO$$_{2}$$$$^{+}$$ in molten alkali chloride

Nagai, Takayuki; Uehara, Akihiro*; Fujii, Toshiyuki*; Shirai, Osamu*; Yamana, Hajimu*

no journal, , 

no abstracts in English

Oral presentation

Development of the technology for the melter dismantling, 2

Kozaka, Tetsuo; Asano, Naoki; Ito, Yoshiyuki; Komori, Masanori

no journal, , 

no abstracts in English

Oral presentation

Evaluation of radioactivity in wastes from Tokai reprocessing plant, 4; Correlation between Tc-99 and Cs-137, 1

Sakakibara, Tetsuro; Kohanawa, Osamu; Akutsu, Shigeru; Kojima, Hiroshi; Sakashita, Akira*; Kuroda, Kazuhiko*; Kino, Kenichiro*; Saigusa, Moriyuki*

no journal, , 

no abstracts in English

Oral presentation

Demonstration test with plutonium for electrometallurgical pyroprocess at CPF, 12; Electrorefining test with reduced MOX

Kitawaki, Shinichi; Shinozaki, Tadahiro; Fukushima, Mineo; Usami, Tsuyoshi*; Yahagi, Noboru*; Kurata, Masaki*

no journal, , 

no abstracts in English

Oral presentation

Dispersibility of montmorillonite Particles and the Influence on Radionuclide Migration

Kurosawa, Susumu; Ueta, Shinzo*; Yui, Mikazu

no journal, , 

no abstracts in English

Oral presentation

Development of Pyro-chemical reprocessing technology using molybdenum oxide melt, 1; Research on dissolution process

Mizuguchi, Koji; Fukushima, Mineo; Yasuike, Yoshiyuki*

no journal, , 

no abstracts in English

Oral presentation

Development of an improved fuel handling machine for comercialised sodium cooled reactor; Test on the wearing characteristics of real scale bearing in Ar gas

Usui, Shinichi; Chikazawa, Yoshitaka; Konomura, Mamoru; Sadahiro, Daisuke*; Tozawa, Katsuhiro*; Hori, Toru*

no journal, , 

no abstracts in English

Oral presentation

Research and development program for advanced aqueous reprocessing technologies; Plan of hot engineering demonstration tests

Nakamura, Hirofumi; Nagai, Toshihisa; Suto, Shinya; Shimada, Takashi; Funasaka, Hideyuki; Sugiyama, Toshihide

no journal, , 

no abstracts in English

Oral presentation

Influence of coupling plates on beam dynamics in the IFMIF-RFQ

Maebara, Sunao; Moriyama, Shinichi; Saigusa, Mikio*; Sugimoto, Masayoshi

no journal, , 

no abstracts in English

Oral presentation

Fundamental properties database of buffer material

Tanai, Kenji; Kikuchi, Hirohito*

no journal, , 

no abstracts in English

Oral presentation

Evaluation of neutron induced reaction for Np-237

Iwamoto, Osamu; Nakagawa, Tsuneo

no journal, , 

Nuclear data for neutron induced reactions of Np-237 were evaluated at incident energies up to 20 MeV. The evaluations were done based on the theoretical models of coupled-channels optical model, pre-equilibrium excitionmodel and Hauser-Feshbach statistical model. The coupled-channels optical model was used considering 5 levels of groundstate rotational band with optical potential including dispersion relation. The parameters of potential were adjusted toreproduce measured data of total cross section. The statistical model calculation was done including netron, $$gamma$$ and fissionchannel with adjusting parameters to reproduce experimental data of capture, (n,2n) and fission cross sections. These new evaluation improved agreement with experimental data of total cross section between 1 to 10 MeV from JENDL-3.3. The capture cross section around 10 MeV was expected to be improved by inclusion of the effect of direct and semi-direct capture reaction to the calculation. Evaluation of fission cross section using least square fitting code, GMA, were also done and error of fission cross sectionwas obtained.

Oral presentation

Alpha radioactivity measurement based on ionized air transportation technology, 16; Verification test with uranium samples

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

Oral presentation

Development of nondestructive measurement techniques for uranium-contaminated waste; Measurement of uranium-contaminated waste including daughter nuclides

Omori, Koji; Oki, Koichi; Ishibashi, Yuzo; Numano, Tatsuo; Sunaoshi, Mizuho*; Suzuki, Satoshi*; Sukegawa, Yasuhiro*

no journal, , 

no abstracts in English

Oral presentation

Alpha radioactivity measurement based on ionized air transportation technology, 18; Verification of a suppression method of ion loss by ion-ion recombination by air splaying

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

Oral presentation

Alpha radioactivity measurement based on ionized air transportation technology, 17; 3D-CFD simulations of uranium waste

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

Oral presentation

Study of the decay heat limitation accumulated in the molten salt of an electrorefiner

Kobayashi, Tsuguyuki; Sato, Fuminori

no journal, , 

no abstracts in English

Oral presentation

Engineering scale demonstration test of centrifugal contactor system, 5; Comparison of solvent washing performance between salt-free and alkali reagents by internal reflux type

Takeuchi, Masayuki; Onose, Tsutomu*; Fujisaku, Kazuhiko*; Arai, Yoichi; Washiya, Tadahiro; Kitajima, Takafumi; Koizumi, Tsutomu

no journal, , 

no abstracts in English

Oral presentation

Development of centrifugal contactor with magnetic bearing system, 4; $$gamma$$-ray irradiation test on magnetic bearing system

Arai, Yoichi; Fujisaku, Kazuhiko*; Koizumi, Satoshi*; Takeuchi, Masayuki; Washiya, Tadahiro; Kitajima, Takafumi; Koizumi, Tsutomu

no journal, , 

no abstracts in English

282 (Records 1-20 displayed on this page)