用于医用同位素生产的VNS托卡马克
VNS Tokamak for Medical Isotope Production
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中文总结 AI 辅助
该研究模拟了VNS托卡马克用于医用同位素生产，验证了Serpent和OpenMC代码的一致性，评估了多种同位素产量，并优化了60Co生产，表明该装置具有大规模生产潜力。
中文摘要 AI 辅助
体积中子源（VNS）托卡马克是一种拟议中的聚变反应堆，用于在聚变中子辐照下测试部件，并具有放射性同位素生产的潜在用途。VNS几何结构在Serpent 2.2.2和OpenMC 0.15.2中子学代码中建模。耦合中子-光子模拟比较了包层和真空容器中的通量、能谱和选定反应速率。总体一致性良好，最大差异出现在(n, 2n)反应中。在HPC集群上，Serpent 2在耦合模拟中计算时间较短，而OpenMC在仅中子模拟中更快。使用Serpent 2.2.2模拟了胶囊和钴板辐照设施的放射性同位素产量。结果表明，99Mo、131I、225Ac、177Lu、192Ir、64Cu、67Cu、161Tb和153Sm具有大批量生产潜力，而203Pb潜力较低。计算了100Mo和低浓缩铀（LEU）靶的加热，表明LEU靶质量或冷却可能需要调整。优化后的60Co生产在3年辐照期后产量为1.2 GBq/mg和100,000 TBq。模拟了99Mo、131I、177Lu和60Co对工厂停机的敏感性，表明对于相同的同位素装载可以重新开始辐照，并证明了长寿命的60Co对长时间工厂停留时间具有鲁棒性。
英文摘要
The Volumetric Neutron Source (VNS) tokamak is a proposed fusion reactor for testing components under fusion neutron irradiation, and has potential use for radioisotope production. The VNS geometry is modeled in the Serpent 2.2.2 and OpenMC 0.15.2 neutronics codes. Coupled neutron-photon simulations compared fluxes, spectra, and selected reaction rates in the blanket and vacuum vessel. Good agreement was found overall, with the largest difference found in (n, 2n) reactions. On an HPC cluster, Serpent 2 was found to have shorter computation time in coupled simulations, while OpenMC was faster in neutron only simulations. Radioisotope production yields were simulated in Serpent 2.2.2 for capsule and Cobalt plate irradiation facilities. Results indicate potential for large volume production of 99Mo, 131I, 225Ac, 177Lu, 192Ir, 64Cu, 67Cu, 161Tb, and 153Sm while 203Pb indicates lower potential. 100Mo and LEU target heating was calculated, suggesting the LEU target mass or the cooling may need adjustment. Optimized 60Co production yielded 1.2 GBq/mg and 100,000 TBq after a 3-year irradiation period. Sensitivity to plant outage for 99Mo, 131I, 177Lu, and 60Co was simulated, suggesting irradiation can be restarted for the same isotope loading and demonstrated long-lived 60Co to be robust to long plant dwell-time.
发表机构
- Forschungs-Neutronenquelle Heinz Maier-Leibnitz (FRM II)（海因茨·迈尔-莱布尼茨研究源 (FRM II)）
- Technical University of Munich（慕尼黑工业大学）
- EUROfusion Consortium（欧洲聚变联盟）
机构由 AI 辅助整理，请以论文原文为准。
