دورية أكاديمية
Cask size and weight reduction through the use of depleted uranium dioxide-concrete material
| العنوان: | Cask size and weight reduction through the use of depleted uranium dioxide-concrete material |
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| المؤلفون: | S. Y. Lobach, J. M. Haire |
| المصدر: | Âderna Fìzika ta Energetika, Vol 8, Iss 1(19), Pp 89-94 (2007) |
| بيانات النشر: | Institute for Nuclear Research, National Academy of Sciences of Ukraine, 2007. |
| سنة النشر: | 2007 |
| المجموعة: | LCC:Atomic physics. Constitution and properties of matter |
| مصطلحات موضوعية: | Atomic physics. Constitution and properties of matter, QC170-197 |
| الوصف: | Newly developed depleted uranium (DU) composite materials enable fabrication of spent nuclear fuel (SNF) transport and storage casks that are smaller and lighter in weight than casks made with conventional materials. One such material is DU dioxide (DUO2)-concrete, so-called DUCRETETM. This paper examines the radiation shielding efficiency of DUCRETE as compared with that of a conventional concrete cask that holds 32 pressurized-water-reactor SNF assemblies. In this analysis, conventional concrete shielding material is replaced with DUCRETE. The thickness of the DUCRETE shielding is adjusted to give the same radiation surface dose, 200 mrem/h (2 mSv/hr), as the conventional concrete cask. It was found that the concrete shielding thickness decreased from 71 to 20 cm and that the cask radial cross-section shielding area was reduced ~50 %. The weight was reduced ~21 %, from 154 to ~127 tons. Should one choose to add an extra outer ring of SNF assemblies, the number of such assemblies would increase from 32 to 52. In this case, the outside cask diameter would still decrease, from 169 to 137 cm. However, the weight would increase somewhat from 156 to 177 tons. Neutron cask surface dose is only ~10 % of the gamma dose. These reduced sizes and weights will significantly influence the design of next-generation SNF casks. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Russian Ukrainian |
| تدمد: | 1818-331X 2074-0565 |
| Relation: | http://jnpae.kinr.kiev.ua/19(1)/Articles_PDF/jnpae-2007-1(19)-0089-Lobach.pdf; https://doaj.org/toc/1818-331X; https://doaj.org/toc/2074-0565 |
| URL الوصول: | https://doaj.org/article/9bc08794eae94b16a150b4fe908db50a |
| رقم الأكسشن: | edsdoj.9bc08794eae94b16a150b4fe908db50a |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 1818331X 20740565 |
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