Výsledky vyhledávání - "Kohei Iwanaga"

Application of Monte Carlo Method to Solve the Neutron Kinetics Equation for a Subcritical Assembly

Autor: Kohei Iwanaga, Takamasa Mori, Hiroshi Sekimoto

Publikováno v: J. of Nucl. Sci. Technol. 45(No. 11):1099-1107

There is a need to understand the space-dependent kinetics of fast or thermal reactor physics and the Monte Carlo method should be implemented in kinetics codes as well. In a transient accident (for example, control rod ejection accident or loss of c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39260c5c8e5c227b6e343c2e543d568f
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100586410

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Neutronics Design of Accelerator-Driven System for Power Flattening and Beam Current Reduction

Autor: Yuji Kurata, Kohei Iwanaga, Tomohiko Iwasaki, Kenji Nishihara, Hiroyuki Oigawa, Kazufumi Tsujimoto

Publikováno v: Journal of Nuclear Science and Technology. 45:812-822

In the present neutronics design of the Accelerator-Driven System (ADS) cooled by lead-bismuth eu-tectic (LBE), we investigated several methods to reduce the power peak and beam current, and estimated the temperature reductions of the cladding tube a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2d0863f94bd05374065d22ef87b43f37
https://doi.org/10.1080/18811248.2008.9711482

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Study on the electronic effect on coordinating donors in heptacoordinate trichlorogermanes

Autor: Kohei Iwanaga, Takayuki Kawashima, Junji Kobayashi

Publikováno v: Tetrahedron. 63:10127-10132

Trichloro[tris(2,5-dimethoxyphenyl)methyl]germane (1a), trichloro[tris(3-fluoro-6-methoxyphenyl)methyl]germane (1b), and trichloro[tris(2-methoxy-5-trifluoromethylphenyl)methyl]germane (1c) were synthesized. X-ray crystallographic analyses of 1a–c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f11e29e5b7ed804c0204ba0cceed532a
https://doi.org/10.1016/j.tet.2007.08.001

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Syntheses, Structures, and Reactions of Heptacoordinate Trihalogermanes Bearing a Triarylmethyl-Type Tetradentate Ligand

Autor: Takayuki Kawashima, Kohei Iwanaga, Nozomi Takagi, Junji Kobayashi, Shigeru Nagase

Publikováno v: Organometallics. 25:3388-3393

Trichloro[tris(3-tert-butyl-6-methoxyphenyl)methyl]germane (3), containing a tetradentate ligand with three methoxy groups as coordinating sites, was synthesized by the reaction of the correspondin...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::df5be6b89222ab8b1df149843a97c677
https://doi.org/10.1021/om060031o

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Study on Kinetics of fast Subcritical Assembly - Contribution of Delayed Neutrons to the Transition after Reactivity Insertion in a Subcritical System

Autor: Hiroshi Sekimoto, Kohei Iwanaga

Publikováno v: Progress in Nucl. Energy. 47:163-170

This study is an investigation of the effect of the delay neutron on the kinetics in the subcritical system. And, it proposes a method necessary for the kinetics code development that uses the Monte Carlo (MC) computation. It is generally difficult t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca3aba40c7eaea984530206c9265bd9f
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100400007

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Investigation of Main Radiation Source above Shield Plug of Unit 3 at Fukushima Daiichi Nuclear Power Station

Autor: Yoshihiko Tanimura, Hideo Hiratama, Hiroshi Nagata, Seishiro Suzuki, Kenjiro Kondo, Kohei Iwanaga

Publikováno v: EPJ Web of Conferences, Vol 153, p 08010 (2017)

Pulse height distributions were measured using a CdZnTe detector inside a lead collimator to investigate main source producing high dose rates above the shield plugs of Unit 3 at Fukushima Daiichi Nuclear Power Station. It was confirmed that low ener

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a7d96288d7b140e1c2d64ee049d0db1
https://doi.org/10.1051/epjconf/201715308010

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