A review on the defense-in-depth concept and the flex strategies in different countries after Fukushima accident

To enhance the defense in depth for nuclear safety after the Fukushima nuclear accident, the U.S. Nuclear Energy Institute put forward the concept of diverse and flexible coping strategies and the corresponding FLEX support guidelines for the special scenarios of extended loss of alternating current...

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Autores principales:	Xu Hong, Zhang Baorui
Formato:	article
Lenguaje:	EN
Publicado:	VINCA Institute of Nuclear Sciences 2021
Materias:	diverse and flexible coping strategies defense in depth loss of ultimate heat sink beyond-design-basis external events extended loss of alternating current power fukushima nuclear accident Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/56006afaefc5454da0ff29b8a34cb0f0
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spelling	oai:doaj.org-article:56006afaefc5454da0ff29b8a34cb0f02021-11-22T11:03:07ZA review on the defense-in-depth concept and the flex strategies in different countries after Fukushima accident1451-39941452-818510.2298/NTRP210128013Xhttps://doaj.org/article/56006afaefc5454da0ff29b8a34cb0f02021-01-01T00:00:00Zhttp://www.doiserbia.nb.rs/img/doi/1451-3994/2021/1451-39942100013X.pdfhttps://doaj.org/toc/1451-3994https://doaj.org/toc/1452-8185To enhance the defense in depth for nuclear safety after the Fukushima nuclear accident, the U.S. Nuclear Energy Institute put forward the concept of diverse and flexible coping strategies and the corresponding FLEX support guidelines for the special scenarios of extended loss of alternating current power and loss of ultimate heat sink caused by beyond-design-basis external event. Subsequently, the idea of the FLEX strategy was broadly accepted and spread widely. The introduction of the concept of FLEX strategy into the defense in depth was the biggest improvement for nuclear safety in the recent decade. This paper has reviewed the concept of traditional defense in depth and its weakness that led to the Fukushima nuclear accident, which led to the development motivation for the FLEX strategy. The research progress of the FLEX strategy in different countries in the past ten years has been reviewed. Based on the literature, and the aforementioned review, some recommendations for future work have been presented.Xu HongZhang BaoruiVINCA Institute of Nuclear Sciencesarticlediverse and flexible coping strategiesdefense in depthloss of ultimate heat sinkbeyond-design-basis external eventsextended loss of alternating current powerfukushima nuclear accidentNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENNuclear Technology and Radiation Protection, Vol 36, Iss 2, Pp 116-127 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	diverse and flexible coping strategies defense in depth loss of ultimate heat sink beyond-design-basis external events extended loss of alternating current power fukushima nuclear accident Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	diverse and flexible coping strategies defense in depth loss of ultimate heat sink beyond-design-basis external events extended loss of alternating current power fukushima nuclear accident Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Xu Hong Zhang Baorui A review on the defense-in-depth concept and the flex strategies in different countries after Fukushima accident
description	To enhance the defense in depth for nuclear safety after the Fukushima nuclear accident, the U.S. Nuclear Energy Institute put forward the concept of diverse and flexible coping strategies and the corresponding FLEX support guidelines for the special scenarios of extended loss of alternating current power and loss of ultimate heat sink caused by beyond-design-basis external event. Subsequently, the idea of the FLEX strategy was broadly accepted and spread widely. The introduction of the concept of FLEX strategy into the defense in depth was the biggest improvement for nuclear safety in the recent decade. This paper has reviewed the concept of traditional defense in depth and its weakness that led to the Fukushima nuclear accident, which led to the development motivation for the FLEX strategy. The research progress of the FLEX strategy in different countries in the past ten years has been reviewed. Based on the literature, and the aforementioned review, some recommendations for future work have been presented.
format	article
author	Xu Hong Zhang Baorui
author_facet	Xu Hong Zhang Baorui
author_sort	Xu Hong
title	A review on the defense-in-depth concept and the flex strategies in different countries after Fukushima accident
title_short	A review on the defense-in-depth concept and the flex strategies in different countries after Fukushima accident
title_full	A review on the defense-in-depth concept and the flex strategies in different countries after Fukushima accident
title_fullStr	A review on the defense-in-depth concept and the flex strategies in different countries after Fukushima accident
title_full_unstemmed	A review on the defense-in-depth concept and the flex strategies in different countries after Fukushima accident
title_sort	review on the defense-in-depth concept and the flex strategies in different countries after fukushima accident
publisher	VINCA Institute of Nuclear Sciences
publishDate	2021
url	https://doaj.org/article/56006afaefc5454da0ff29b8a34cb0f0
work_keys_str_mv	AT xuhong areviewonthedefenseindepthconceptandtheflexstrategiesindifferentcountriesafterfukushimaaccident AT zhangbaorui areviewonthedefenseindepthconceptandtheflexstrategiesindifferentcountriesafterfukushimaaccident AT xuhong reviewonthedefenseindepthconceptandtheflexstrategiesindifferentcountriesafterfukushimaaccident AT zhangbaorui reviewonthedefenseindepthconceptandtheflexstrategiesindifferentcountriesafterfukushimaaccident
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A review on the defense-in-depth concept and the flex strategies in different countries after Fukushima accident

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