Energy Calculation on Fuel Assembly Containing Gadolinium
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摘要: 通过对钆元素中子物理特性和实例组件的计算分析,指出由于常规计算中对计算公式进行简化而忽略了核素俘获反应所带来的能量释放,以及某些核数据库无法提供完整的俘获吸收截面和相关释热参数数据,会给含钆燃料组件中各种物理参数计算带来计算误差;给出了正确的计算公式,并且通过构造组件实例,应用成熟的计算程序和改进后的计算方法获得了正确的计算结果。Abstract: Based on the analysis of the physical properties and the calculation result of an assembly, this paper points out that it may cause errors in calculating the assembly parameters containing gadolinium, which is of the simplified formula without considering the energy from capture reaction and the short of the capture cross section and the energy parameter in some nuclear data library.At the same time the correct formula is showed with the improved algorithm and the mature program.
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Key words:
- Gadolinium element /
- Physical properties /
- Fuel assembly /
- Energy calculation /
- Calculation accuracy
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