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http://dx.doi.org/10.1016/j.net.2020.11.005

Material attractiveness of unirradiated depleted, natural and low-enriched uranium for use in radiological dispersal device  

Ahn, Jihyun (Jeonbuk National University)
Seo, Hee (Jeonbuk National University)
Publication Information
Nuclear Engineering and Technology / v.53, no.5, 2021 , pp. 1652-1657 More about this Journal
Abstract
Nuclear materials can be utilized not only for peaceful uses, but also for military purposes; hence, the international community has devoted itself to the control, management and safeguarding of nuclear materials. Nuclear materials are of varying degrees of usability for development of nuclear weapons. Thus, several methods for assessing the attractiveness of nuclear materials for nuclear weapons purposes have been proposed. When these methods are applied to unirradiated depleted, natural, and low-enriched uranium (DU, NU, and LEU), they are certainly classified as non-attractive nuclear materials. However, when nuclear material attractiveness is to be evaluated for potential radiological dispersal device (RDD) uses, it is required to develop a different method for the different aspects and factors. In the present study, we derived a novel method for evaluating nuclear material attractiveness for use in RDD development. To this end, the specific activity and dose coefficient were identified as the two sub-factors, and, in consideration of those, the mass causing detrimental health effects was determined to be the main factor impacting on nuclear materials attractiveness. Based on this factor, the attractiveness of unirradiated DU, NU, and LEU for RDD use was qualitatively compared with that of 137Cs.
Keywords
Nuclear safeguards; Nuclear material attractiveness; Radiological dispersal device;
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