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Ohshima, Hiroyuki; Morishita, Masaki*; Aizawa, Kosuke; Ando, Masanori; Ashida, Takashi; Chikazawa, Yoshitaka; Doda, Norihiro; Enuma, Yasuhiro; Ezure, Toshiki; Fukano, Yoshitaka; et al.
Sodium-cooled Fast Reactors; JSME Series in Thermal and Nuclear Power Generation, Vol.3, 631 Pages, 2022/07
This book is a collection of the past experience of design, construction, and operation of two reactors, the latest knowledge and technology for SFR designs, and the future prospects of SFR development in Japan. It is intended to provide the perspective and the relevant knowledge to enable readers to become more familiar with SFR technology.
Yada, Ryuichi*; Maenaka, Kazusuke*; Miyamoto, Shuji*; Okada, Go*; Sasakura, Aki*; Ashida, Motoi*; Adachi, Masashi*; Sato, Tatsuhiko; Wang, T.*; Akasaka, Hiroaki*; et al.
Medical Physics, 47(10), p.5235 - 5249, 2020/10
Times Cited Count:7 Percentile:52.3(Radiology, Nuclear Medicine & Medical Imaging)The dosimeter system is capable of real-time, accurate, and precise measurement under stereotactic body radiation therapy (SBRT) conditions. The probe is smaller than a conventional dosimeter, has excellent spatial resolution, and can be valuable in SBRT with a steep dose distribution over a small field. The developed PSP dosimeter system appears to be suitable for in vivo SBRT dosimetry.
Itagaki, Wataru; Sekine, Takashi; Imaizumi, Kazuyuki; Maeda, Shigetaka; Ashida, Takashi; Takamatsu, Misao; Nagai, Akinori; Maeda, Yukimoto
Proceedings of 1st International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications (ANIMMA 2009) (USB Flash Drive), 7 Pages, 2009/06
no abstracts in English
Ashida, Takashi; Takamatsu, Misao; Kawahara, Hirotaka; Maeda, Shigetaka; Maeda, Yukimoto; Hara, Masahide*; Kato, Jungo*
no journal, ,
no abstracts in English
Sekine, Takashi; Ashida, Takashi; Imaizumi, Kazuyuki; Takamatsu, Misao; Nagai, Akinori; Maeda, Yukimoto
no journal, ,
Restoration works for restart of the experimental fast reactor Joyo need to retrieve the bent irradiation test subassembly (MARICO-2) left in the in-vessel storage rack and replace the damaged upper core structure (UCS). In-vessel visual observations using radiation resistant fiberscopes and cameras were conducted to investigate the MARICO-2 and the MARICO-2 was temporarily lifted to confirm the condition. The in-vessel ray dose rate was measured to evaluate the activation of the UCS which will be reflected to optimize the shielding design of a UCS replacement cask and a MARICO-2 handling tool.