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Parametric Study of Minimum Critical Volume for High-Assay Low-Enriched Uranium (20%) in Spherical Geometry Against Particle Size.

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Title: Parametric Study of Minimum Critical Volume for High-Assay Low-Enriched Uranium (20%) in Spherical Geometry Against Particle Size.
Authors: Christensen, Joseph A.1 (AUTHOR) chri8163@vandals.uidaho.edu, Borrelli, R. A.2 (AUTHOR)
Source: Nuclear Science & Engineering. Jan 2022, Vol. 196 Issue 1, p98-108. 11p.
Subjects: Uranium, Geometry, Technical reports, Maxima & minima, Spherical geometry
Abstract: Algorithms used to generate Monte Carlo input decks and to analyze the output over a range of uranium mass, water volume, and particle size in a regular lattice are described. The algorithms produce input decks for both homogeneous and heterogeneous, regular-lattice systems of 20% enriched uranium metal and water and then analyze the results to determine the minimum critical mass over a range of input mass and particle size. The output is presented and analyzed for a 20% enriched uranium metal and water system, and comparisons to existing technical reports and safety guides are discussed. Two particular existing recommendations are tested and compared with new results: the boundary between a homogeneous system and a heterogeneous system, and the recommended margins of safety that can be applied to account for the effects of heterogeneity. [ABSTRACT FROM AUTHOR]
Copyright of Nuclear Science & Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 154268942
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Parametric Study of Minimum Critical Volume for High-Assay Low-Enriched Uranium (20%) in Spherical Geometry Against Particle Size.
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  Data: <searchLink fieldCode="JN" term="%22Nuclear+Science+%26+Engineering%22">Nuclear Science & Engineering</searchLink>. Jan 2022, Vol. 196 Issue 1, p98-108. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Uranium%22">Uranium</searchLink><br /><searchLink fieldCode="DE" term="%22Geometry%22">Geometry</searchLink><br /><searchLink fieldCode="DE" term="%22Technical+reports%22">Technical reports</searchLink><br /><searchLink fieldCode="DE" term="%22Maxima+%26+minima%22">Maxima & minima</searchLink><br /><searchLink fieldCode="DE" term="%22Spherical+geometry%22">Spherical geometry</searchLink>
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  Data: Algorithms used to generate Monte Carlo input decks and to analyze the output over a range of uranium mass, water volume, and particle size in a regular lattice are described. The algorithms produce input decks for both homogeneous and heterogeneous, regular-lattice systems of 20% enriched uranium metal and water and then analyze the results to determine the minimum critical mass over a range of input mass and particle size. The output is presented and analyzed for a 20% enriched uranium metal and water system, and comparisons to existing technical reports and safety guides are discussed. Two particular existing recommendations are tested and compared with new results: the boundary between a homogeneous system and a heterogeneous system, and the recommended margins of safety that can be applied to account for the effects of heterogeneity. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Nuclear Science & Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1080/00295639.2021.1940066
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      – Code: eng
        Text: English
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      – SubjectFull: Uranium
        Type: general
      – SubjectFull: Geometry
        Type: general
      – SubjectFull: Technical reports
        Type: general
      – SubjectFull: Maxima & minima
        Type: general
      – SubjectFull: Spherical geometry
        Type: general
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      – TitleFull: Parametric Study of Minimum Critical Volume for High-Assay Low-Enriched Uranium (20%) in Spherical Geometry Against Particle Size.
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              Text: Jan 2022
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