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Igarashi, Yu; Yamaguchi, Ichiro*; Oda, Keiji*; Fukushi, Masahiro*; Sakama, Minoru*; Iimoto, Takeshi*
Nihon Hoshasen Anzen Kanri Gakkai-Shi, 21(2), p.74 - 76, 2022/11
no abstracts in English
Yamada, Ryohei; Kono, Takahiko; Nakajima, Junya; Hirouchi, Jun; Tsuji, Tomoya; Umeda, Masayuki; Igarashi, Yu*; Koike, Hiromi*
Hoken Butsuri (Internet), 56(1), p.32 - 38, 2021/03
no abstracts in English
Igarashi, Takahiro; Komatsu, Atsushi; Yamamoto, Yudai*; Fushimi, Koji*; Ueno, Fumiyoshi
no journal, ,
Development and simulation of hydrogen permeation considering solid/solution reaction was conducted. For solid/solution reaction we have considered elementary process of hydrogen evolution reaction, Volmer reaction, Heyrovsky reaction, Tafel reaction and permeation reaction. In the study, we will present results of hydrogen permeation calculation using developed model, and difference of behavior depending on electrode potential and width of specimen.
Igarashi, Takahiro; Komatsu, Atsushi; Yamamoto, Yudai*; Fushimi, Koji*; Ueno, Fumiyoshi
no journal, ,
In order to understand the hydrogen permeation behavior into the steel with solution flow, we developed a simulation model of hydrogen permeation reaction considering solution flow and conducted simulation analyses. We will discuss the effect of frequently controlled (like sine-curve) solution flow velocity on phase difference between cathode current density and permeation current density.
Igarashi, Yu; Iimoto, Takeshi*; Kowatari, Munehiko*; Yamaguchi, Ichiro*
no journal, ,
no abstracts in English
Igarashi, Yu; Hamaguchi, Takumi; Maeda, Eita; Yamada, Junya; Muto, Yasunobu; Tanigaki, Minoru*; Nohara, Naofumi
no journal, ,
At the JAEA Oarai Research Establishment, a portable KURAMA equipped with a data transmission function through an autonomous network using the ZETA standard was permanently installed near the MP for the purpose of redundancy in the measurement of monitoring points, and a system for observing radiation doses near the site boundary was developed. In this presentation, we report on the fixed point observation data for about one year using this system.
Igarashi, Yu; Hamaguchi, Takumi; Maeda, Eita; Yamada, Junya; Muto, Yasunobu; Nohara, Naofumi
no journal, ,
At the Oarai Research Institute of the Japan Atomic Energy Agency, a portable KURAMA equipped with a data transmission function using an autonomous network based on the ZETA standard was permanently installed in the vicinity of the MP, and a system for observing radiation doses around the site boundary was developed. In this presentation, the background to the redundancy of post-measurement monitoring, which is the purpose of this system installation, and the fixed-point observation data for about one year will be reported.
