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Tsukahara, Takehiko*; Saga, Kaname*; Suzuki, Hideya*; Matsumura, Tatsuro
Kurin Tekunoroji, 29(12), p.4 - 7, 2019/12
no abstracts in English
*
JNC TN1440 2000-005, 214 Pages, 2000/08
JNC-TN1440-2000-005.pdf:13.81MB
no abstracts in English
Oki, Shigeo; Iwai, Takehiko*; Jin, Tomoyuki*
JNC TN9400 2000-080, 532 Pages, 2000/03
JNC-TN9400-2000-080.pdf:14.98MB
Transmutation Property of minor actinide nuclides (MA) was analyzed for fast reactor cores having different coolant and fuel types in order to obtain basic data for evaluating an ability of the efficient use of resource and reducing the effect on the environment. The investigated fast reactor cores were (a) sodium cooled and oxide fueled core, (b) lead cooled and nitride fueled core (BREST-300), (c) carbon dioxide gas cooled and oxide fueled core (ETGBR), (d)lead cooled and oxide fueled core, (e) sodium cooled and nitride fueled core (both He-bond and sodium-bond), and (f) sodium cooled and metallic fueled core. Followings were observed for the relation between MA transmutation property and the different types of coolant and fuel of fast reactor core. (1) For the MA transmutation rate, the relation "Oxide 
Metal Nitride" was found out for difference of fuel type. A main reason of the increment of MA transmutation rate is that the neutron flux level rises on nitride and metallic fueled cores in comparison with oxide core. (2) The relation "Lead Sodium and Carbon dioxide" can be seen for the MA transmutation rate in the difference of coolant, but it is not clear whether the cause is driven from the difference of coolant itself on the difference of core design. (3) The changes of MA transmutation property mentioned above are comparatively small.
Shiba, Tsuyoshi*; Kamezaki, Hiroshi*; Yuyama, Tomonori*; *
JNC TJ9400 2000-012, 92 Pages, 2000/02
JNC-TJ9400-2000-012.pdf:3.18MB
This research aims to develop a system in which aspects necessary for FBR cycle and overall comparison of evaluation items (economy, safety etc.) are evaluated quantitatively and objectively as a part of Nuclear Cycle development's research project of the FBR cycle for practical use. There are various methods in the decision-making support. In this particular situation, features of each method were evaluated based on the analysis of cases with each method. Subsequently we constructed overall evaluation method by combining Analytic Hierarchy Process (AHP), Multi-attribution Utility Function Method (MUF) and Cut-off Method. This method has variation in evaluation items, transparency in evaluation process and uncompensation. The six aspects of evaluation are economy, effectiveness of resource use, proliferation resistance, environmental effectiveness, safety, and research and development. The evaluation items and the evaluation index of each aspect were hierarchized and the evaluation structure was constructed. In the present study effect function for each evaluation index and pair comparison for examining significance of each item were utilized to select prospective systems for FBR cycle experimentally. The result confirmed reliability of our general assessment system as a decision-making support system for FBR system.
Matsumura, Tatsuro; Ishii, Sho*; Suzuki, Akihiro*; Mizusako, Fumiki*
no journal, ,
no abstracts in English
Kawaguchi, Koichi; Segawa, Tomoomi; Ishii, Katsunori; Suzuki, Akihiro*
no journal, ,
no abstracts in English
Matsumura, Tatsuro; Ishii, Sho*; Suzuki, Akihiro*
no journal, ,
no abstracts in English
Kawaguchi, Koichi; Segawa, Tomoomi; Ishii, Katsunori; Suzuki, Akihiro*
no journal, ,
no abstracts in English
Suzuki, Akihiro*; Endo, Yoichi*; Fukasawa, Tetsuo*; Muroya, Yusa*; Matsumura, Tatsuro; Inagaki, Yaohiro*; Arima, Tatsumi*
no journal, ,
no abstracts in English
Matsumura, Tatsuro; Suzuki, Akihiro*
no journal, ,
no abstracts in English