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RISS 인기검색어
- 검색키워드
- 저자 : Erich Schneider (검색결과 4 건)
- 무료
- 기관 내 무료
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Systems Analyses of Alternative Technologies for the Recovery of Seawater Uranium
Margaret Flicker Byers,Erich Schneider,Sheldon Landsberger 한국방사성폐기물학회 2018 방사성폐기물학회지 Vol.16 No.3
The ability to recover the nearly limitless supply of uranium contained within the world’s oceans would provide supply security to uranium based fuel cycles. Therefore, in addition to U.S. national laboratories conducting R&D on a system capable of harvesting seawater uranium, a number of collaborative university partners have developed alternative technologies to complement the national laboratory scheme. This works summarizes the systems analysis of such novel uranium recovery technologies along with their potential impacts on seawater uranium recovery. While implementation of some recent developments can reduce the cost of seawater uranium by up to 30%, other researchers have sought to address a weakness while maintaining cost competitiveness.
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Systems Analyses of Alternative Technologies for the Recovery of Seawater Uranium
Byers, Margaret Flicker,Schneider, Erich,Landsberger, Sheldon Korean Radioactive Waste Society 2018 방사성폐기물학회지 Vol.16 No.3
The ability to recover the nearly limitless supply of uranium contained within the world's oceans would provide supply security to uranium based fuel cycles. Therefore, in addition to U.S. national laboratories conducting R&D on a system capable of harvesting seawater uranium, a number of collaborative university partners have developed alternative technologies to complement the national laboratory scheme. This works summarizes the systems analysis of such novel uranium recovery technologies along with their potential impacts on seawater uranium recovery. While implementation of some recent developments can reduce the cost of seawater uranium by up to 30%, other researchers have sought to address a weakness while maintaining cost competitiveness.
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A study of insider threat in nuclear security analysis using game theoretic modeling
Kim, Kyo-Nam,Yim, Man-Sung,Schneider, Erich Elsevier 2017 Annals of nuclear energy Vol.108 No.-
<P><B>Abstract</B></P> <P>An Insider poses a greater threat to the security system of a nuclear power plant (NPP) because of their ability to take advantage of their access rights and knowledge of a facility, to bypass dedicated security measures. If an insider colludes with an external terrorist group, this poses a key threat to the safety-security interface. However, despite the importance of the insider threat, few studies have been conducted to quantitatively analyze an insider threat.</P> <P>This research examines the quantitative framework for investigating the implications of insider threat, taking a novel approach. Conventional tools assessing the security threats to nuclear facilities focus on a limited number of attack pathways. These are defined by the modeler and are based on simple probabilistic calculations. They do not capture the adversary’s intentions nor do they account for their response and adaptation to defensive investments. As an alternative way of performing physical protection analysis, this research explores the use of game theoretic modeling of Physical Protection Systems (PPS) analysis by incorporating the implications of an insider threat, to address the issues of intentionality and interactions. The game theoretic approach has the advantage of modeling an intelligent adversary and insider who has an intention to do harm and complete knowledge of the facility. Through a quantitative assessment and sensitivity analysis, vulnerable but important parameters in this model were identified. This made it possible to determine which insider threat is more important. The results of this analysis can be used to prioritize the implementation of PPS improvements in a nuclear facility. In addition, the results from this analytic framework can be a valuable reference tool in the process of policy making in the nuclear security field.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Implications of an insider threat in nuclear security were quantitatively analyzed. </LI> <LI> The analysis was based on of a hypothetical nuclear facility and using game theoretic approach. </LI> <LI> Through a sensitivity analysis, vulnerable paths and important parameters were identified. </LI> <LI> The methodology can be utilized to prioritize the implementation of PPS improvements in a facility. </LI> </UL> </P>
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