The objective of this research is to the use of americium (AmO₂) as a burnable absorber effectively instead of conventional gadolinium (Gd₂O₃) for VVER-1200 reactor by analyzing its impacts on reactivity, power peaking factor (PPF), safety factor, and quality of the spent fuel. The assembly is burned to 60 GWd/t by using SRAC-2006 code and JENDL-4.0 data library for finding the optimum amount and effective way of using AmO₂ as a burnable absorber. From these studies, it is found that AmO₂ can decrease the excess reactivity like Gd₂O₃ without changing the criticality life span and enrichment of ²³⁵U. A homogeneous mixture of the 0.20% AmO₂+ 4.95% enriched UO₂ fuel rod (model MF-4) decreases the PPF than the reference assembly. The use of AmO₂+UO₂ in the integral burnable absorber (IBA) rod or the outer layer could also decrease the PPF up to 10 GWd/t but increases rapidly after 30 GWd/t, which could be a safety threat. The fuel temperature coefficient and void coefficient of the model MF-4 are the same as the reference assembly. In addition, 22% of initially loaded Am are burning effectively and contributing to the power production.

本研究的目的是通过分析镅 (AmO ₂ ) 作为VVER-1200 反应堆的可燃吸收剂，有效地代替传统的钆 (Gd ₂ O ₃ ) 对反应性、功率峰值因数 (PPF)、安全性的影响。因素和乏燃料的质量。通过使用 SRAC-2006 代码和 JENDL-4.0 数据库，该组件被燃烧至 60 GWd/t，以寻找使用 AmO ₂作为可燃吸收剂的最佳数量和有效方法。从这些研究中发现，AmO ₂可以降低像 Gd ₂ O ₃这样的过量反应性，而不会改变²³⁵的临界寿命和富集度。U. 0.20% AmO ₂ + 4.95% 富集 UO ₂燃料棒（MF-4 型）的均质混合物比参考组件降低了 PPF。在整体可燃吸收器 (IBA) 棒或外层中使用 AmO ₂ +UO ₂也可以将 PPF 降低至 10 GWd/t，但在 30 GWd/t 后迅速增加，这可能是安全威胁。MF-4 型的燃油温度系数和空隙系数与参考组件相同。此外，22% 的初始加载 Am 有效燃烧并有助于发电。