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Nishihara, Kenji; Iwamura, Takamichi*; Akie, Hiroshi; Nakano, Yoshihiro; Van Rooijen, W.*; Shimazu, Yoichiro*
Proceedings of 21st International Conference & Exhibition; Nuclear Fuel Cycle for a Low-Carbon Future (GLOBAL 2015) (USB Flash Drive), p.388 - 395, 2015/09
The present study focuses on transmutation of Pu and minor actinide in Japanese case without utilizing Pu as resource. Pu can be transmuted by two groups of technology: conventional ones without reprocessing of spent fuel from transmuter and advanced ones with reprocessing. Necessary number of transmuters, inventory reduction of actinide and impact on repository are revealed by nuclear material balance analysis. As a whole advanced technology performs better in transmutation efficiency, although required number of transmuters is larger.
Ito, Naoki*; Mase, Atsushi*; Kogi, Yuichiro*; Seko, Noriaki; Tamada, Masao; Shimazu, Hiroshi*; Sakata, Eiji*
Japanese Journal of Applied Physics, 49(10), p.106506_1 - 106506_5, 2010/10
Times Cited Count：0 Percentile：0(Physics, Applied)As the importance of advanced millimeter-wave diagnostics increases, the fabrications of high-performance devices and components become essential. This paper describes the development of millimeter-wave planar antennas using low-loss fluorine substrates. The problems to be solved for the present purpose are the low degree of adhesion between copper foil and fluorine substrate and the accuracy of device pattern using conventional fabrication techniques. In order to solve these problems, surface treatment of fluorine films and a fabrication method using Electro-Fine-Forming (EF2) are proposed. In order to confirm the performance of the treated films, microstrip lines (MSL) and the planar patch antennas with low-sidelobe level in E-plane are designed and fabricated on the conventional fluorine substrates and on the grafted-PTFE (Polytetrafluoroethylene) films.
Ito, Naoki*; Mase, Atsushi*; Seko, Noriaki; Tamada, Masao; Matsumura, Tomohiro*; Shimazu, Hiroshi*
no journal, ,
no abstracts in English
Ito, Naoki*; Mase, Atsushi*; Kogi, Yuichiro*; Seko, Noriaki; Tamada, Masao; Matsumura, Tomohiro*; Shimazu, Hiroshi*; Sakata, Eiji*
no journal, ,
no abstracts in English
