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Journal Articles

Effect of water distributions on performances of JARI standard PEFC by using neutron radiography

Murakawa, Hideki*; Ueda, Tadanobu*; Yoshida, Takehisa*; Sugimoto, Katsumi*; Asano, Hitoshi*; Takenaka, Nobuyuki*; Mochiki, Koichi*; Iikura, Hiroshi; Yasuda, Ryo; Matsubayashi, Masahito

Nuclear Instruments and Methods in Physics Research A, 605(1-2), p.127 - 130, 2009/06

 Times Cited Count:23 Percentile:81.44(Instruments & Instrumentation)

Journal Articles

Assessment of calculation model for annular core on the HTTR

Nojiri, Naoki; Handa, Yuichi*; Shimakawa, Satoshi; Goto, Minoru; Kaneko, Yoshihiko*

Nihon Genshiryoku Gakkai Wabun Rombunshi, 5(3), p.241 - 250, 2006/09

It was shown from the annular core experiment of the HTTR that the discrepancy of excess reactivity between experiment and analysis reached about 3 % Dk/k at maximum. Sensitivity analysis for the annular core of the HTTR was performed to improve the discrepancy. The SRAC code system was used for the core analysis. As the results of the analysis, it was found clearly that the multiplication factor of the annular core is affected by (1) mesh interval in the core diffusion calculation, (2) mesh structure of graphite region in fuel lattice cell and (3) the Benoist's anisotropic diffusion coefficients. The significantly large discrepancy previously reported was reduced down to about 1 % Dk/k by the revised annular core model.

Oral presentation

Distribution and migration of U, Th and REE in the sedimentary rocks of Mizunami group

Nagata, Hiroshi*; Honda, Teruyuki*; Iwatsuki, Teruki; Mizuno, Takashi

no journal, , 

no abstracts in English

Oral presentation

Distribution and migration of U, Th and trace elements in Toki granite

Tsuboi, Mariko*; Honda, Teruyuki*; Iwatsuki, Teruki; Mizuno, Takashi

no journal, , 

no abstracts in English

Oral presentation

Determination of arsenic and antimony in iron sample from simulation "Tatara" of iron making furnace by neutron activation analysis combined with multiple $$gamma$$-ray detection

Inoshita, Shinya*; Hirai, Shoji*; Okada, Yukiko*; Suzuki, Shogo*; Kimura, Atsushi; Oshima, Masumi

no journal, , 

no abstracts in English

Oral presentation

The Study of trace elements migration at fault

Nagata, Hiroshi*; Honda, Teruyuki*; Iwatsuki, Teruki

no journal, , 

Trace elements analysis have been carryed out to estimate the migration property of fault zone at Horonobe area, Hokkaido. The results show that the light Ln elements are highly sorped on the clay minerals in fault zone.

Oral presentation

Distribution and behavior of major and trace elements in sedimentary rocks originating in difference of geochemical environment

Nagata, Hiroshi*; Honda, Teruyuki*; Iwatsuki, Teruki; Mizuno, Takashi

no journal, , 

Trace element concentrations in sedimentary rocks were analyzed to estimate migration process at chemical weathering and carbonate filling part. The results show that the no migration was observed at chemical weathering part. On the oter hand, U and Th enrich at calcite filling part. The carbonate ligand generation possibly controls migration processes.

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