第17回
Anisotropic distribution of solute elements in ion - irradiated reactor pressure vessel model alloy
著者:
Ba Vu Chinh NGUYEN,Kenta MURAKAMI, Phongsakorn PRAK TOM, Liang CHEN,(長岡技科大)
発刊日:
公開日:
キーワードタグ:
Atom probe tomography (APT) has been performed on Fe-1.4Mn0.6Ni (at%) model alloy to study solute elements behavior under 2.8 MeV Fe ions at 400 0C. Orientation imaging microscopy (OIM) analysis is applied on the detector hit map to determine the pole figure supporting for orientation calculation. The three-dimensional images show that Mn and Ni solute atoms are distributed close to some certain planes, namely <111> and <100> families. This arrangement of solute atoms on the habit planes of interstitial loo...
英字タイトル:
Anisotropic distribution of solute elements in ion - irradiated reactor pressure vessel model alloy
第17回
Radiation-Induced Volume Expansion in Concrete Aggregate Minerals Studied by Ion Irradiation and Step Height Measurement
著者:
Muammar Hawary Patris, Kenta Murakami, Luu Vu Nhut, Xinrun Chen,(長岡技科大), Ippei Maruyama,(名古屋大), Takahiro Ohkubo,(千葉大), Kiyoteru Suzuki,(三菱総研)
発刊日:
公開日:
キーワードタグ:
Long-term radiation exposure can cause damage of concrete structures due to the volume expansion of the aggregate minerals. In this study, granite, sandstone, and tuff were irradiated with 2.8 MeV Fe2+ at room temperature to different level of ion fluences. Step height measurement was conducted to quantify the volume change. It was found that the swelling of all minerals saturated at around 300 nm. Tuff, which contains almost all silica, exhibited the fastest swelling, among others. ...
第12回
システム安全評価のためのレジリエンス指標の 適用性に関する基礎的検討
著者:
鈴木 正昭,Masaaki SUZUKI,出町 和之,Kazuyuki DEMACHI,村上 健太,Kenta MURAKAMI,糸井 達哉,Tatsuya ITOI,笠原 直人,Naoto KASAHARA,宮野 廣,Hiroshi MIYANO,中村 隆夫,Takao NAKAMURA,荒井 滋喜,Shigeki ARAI,釜谷 昌幸,Masayuki KAMAYA,松本 昌昭,Masaaki MATSUMOTO
発刊日:
公開日:
キーワードタグ:
We have developed a new index called Resilience index, which evaluate the reliability of system safety of nuclear power plant under severe accident by considering the capability to recover from the situation the system safety function was lost. In this paper, a detailed evaluation procedure for the Resilience index was described. System safety of a PWR plant under severe accident was then assessed according to the Resilience index concept to discuss applicability of the index. We found that the Resilie...
英字タイトル:
Fundamental Study on Applicability of Resilience Index for System Safety Assessment
論文
事故時安全性評価指標としてのレジリエンス指標の提案) 原子力プラントにおけるレジリエンス評価法の開発 (その1:原子力プラントの事故時安全性評価指標としての レジリエンス指標の提案)
著者:
出町 和之,Kazuyuki DEMACHI,鈴木 正昭,Masaaki SUZUKI,糸井 達哉,Tatsuya ITOI,村上 健太,Kenta MURAKAMI,笠原 直人,Naoto KASAHARA,宮野 廣,Hiroshi MIYANO,中村 隆夫,Takao NAKAMURA,荒井 滋喜,Shigeki ARAI,釜谷 昌幸,Masayuki KAMAYA,松本 昌昭,Masaaki MATSUMOTO
発刊日:
公開日:
キーワードタグ:
In this research, a new index “The Resilience Index” was proposed to evaluate the capability of nuclear power plant to recover from the situation of safety function lost. Three elements assumed to evaluate the resilience index are the achievement rate, necessary time, and probability of success of each accident management activity. The resilience index is expected to visualize the improvement of safety of each nuclear power plant against severe accidents. ...
英字タイトル:
Development of Resilience Evaluation Method for Nuclear Power Plant (Part 1: Proposal of Resilience Index for Assessment of Safety of Nuclear Power Plant under Severe Accident)
論文
原子力プラントにおけるレジリエンス評価法の開発 (その 3:レジリエンス指標の評価法と 適用性に関する検討)
著者:
鈴木 正昭,Masaaki SUZUKI,出町 和之,Kazuyuki DEMACHI,村上 健太,Kenta MURAKAMI,糸井 達哉,Tatsuya ITOI,笠原 直人,Naoto KASAHARA,宮野 廣,Hiroshi MIYANO,中村 隆夫,Takao NAKAMURA,荒井 滋喜,Shigeki ARAI,釜谷 昌幸,Masayuki KAMAYA,山口 篤憲,Atsunori YAMAGUCHI,松本 昌昭,Masaaki MATSUMOTO
発刊日:
公開日:
キーワードタグ:
We have developed a new index, called the resilience index, that evaluates the dynamic stability of the system safety of a nuclear power plant during a severe accident by considering the ability to recover system safety functions that have become lost in the situation. In this paper, a detailed evaluation procedure for the resilience index is described. The system safety of a PWR plant during a severe accident is then assessed according to the resilience index in order to discuss the applicability of ...
英字タイトル:
Development of Resilience Evaluation Method for Nuclear Power Plants (Part 3: Study on Evaluation Method and Applicability of Resilience Index)
第13回
原子力プラントにおけるレジリエンス評価法の開発 (その 3:レジリエンス指標の評価法と適用性に関する検討)
著者:
鈴木 正昭,Masaaki SUZUKI,出町 和之,Kazuyuki DEMACHI,宮野 廣,Hiroshi MIYANO,中村 隆夫,Takao NAKAMURA,釜谷 昌幸,Masayuki KAMAYA,荒井 滋喜,Shigeki ARAI,糸井 達哉,Tatsuya ITOI,村上 健太,Kenta MURAKAMI,笠原 直人,Naoto KASAHARA,松本 昌昭,Masaaki MATSUMOTO
発刊日:
公開日:
キーワードタグ:
We have developed a new index, called the resilience index, that evaluates the dynamic stability of the system safety of a nuclear power plant during a severe accident by considering the ability to recover system safety functions that have become lost in the situation. In this paper, a detailed evaluation procedure for the resilience index is described. The system safety of a PWR plant during a severe accident is then assessed according to the resilience index in order to discuss the applicability of ...
英字タイトル:
Development of Resilience Evaluation Method for Nuclear Power Plants (Part 3: Study on Evaluation Method and Applicability of Resilience Index)
第13回
原子力プラントにおけるレジリエンス評価法の開発 (その1:原子力プラントの事故時安全性評価指標としてのレジリエンス指標の提案)
著者:
出町 和之,Kazuyuki DEMACHI,鈴木 正昭,Masaaki SUZUKI,宮野 廣,Hiroshi MIYANO,中村 隆夫,Takao NAKAMURA,釜谷 昌幸,Masayuki KAMAYA,荒井 滋喜,Shigeki ARAI,糸井 達哉,Tatsuya ITOI,村上 健太,Kenta MURAKAMI,笠原 直人,Naoto KASAHARA,松本 昌昭,Masaaki MATSUMOTO
発刊日:
公開日:
キーワードタグ:
In this research, a new index “The Resilience Index” was proposed to evaluate the capability of nuclear power plant to recover from the situation of safety function lost. Three elements assumed to evaluate the resilience index are the achievement rate, necessary time, and probability of success of each accident management activity. The resilience index is expected to visualize the improvement of safety of each nuclear power plant against severe accidents. ...
英字タイトル:
Development of Resilience Evaluation Method for Nuclear Power Plant (Part.1: Proposal of Resilience Index for Assessment of Safety of Nuclear Power Plant under Severe Accident)
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解説記事
解説記事 プラントライフマネジメントの将来像 ~ IAEA PLiM-5 会議報告 ~
著者:
村上 健太 Kenta MURAKAMI
発刊日:
公開日:
PLiM会議は、関係者がPLMの良好事例を持ち寄って議論を重ねることにより、外形上の違いを超えたPLMの本質を把握し、その将来像を見定める機会となる。著者は、2022年11月28日~12月2日の期間にウィーンで開催されたPLiM-5会議でプログラム委員を務め、初期の準備段階から企画を担当したことから、本会議について報告する。...