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Calculation and Analysis of the Source Term of the Reactor Core Based on Multivariate Analysis of Variance
Science and Technology of Nuclear Installations ( IF 1.1 ) Pub Date : 2021-06-03 , DOI: 10.1155/2021/8810668 Tao Zhou 1, 2 , Peng Xu 2, 3, 4 , Tian Qi 2, 3, 4 , Xuemeng Qin 2, 3, 4 , Juan Chen 2, 3, 4 , Zhongguang Fu 5
Science and Technology of Nuclear Installations ( IF 1.1 ) Pub Date : 2021-06-03 , DOI: 10.1155/2021/8810668 Tao Zhou 1, 2 , Peng Xu 2, 3, 4 , Tian Qi 2, 3, 4 , Xuemeng Qin 2, 3, 4 , Juan Chen 2, 3, 4 , Zhongguang Fu 5
Affiliation
The calculation of the core source term is affected by various factors, such as fuel consumption, enrichment, specific power, and operation mode. The activity of lanthanides, fission products, and the photon source strength were calculated using the ORIGEN program. The weights of each factor were calculated by multivariate analysis of variance. The results show that the radioactivity of actinides and fission products increased with the increase in fuel consumption. As enrichment increased, the radioactivity of fission products and actinides decreased. The radioactivity of fission products and actinides increased linearly with the change in specific power, with a correlation coefficient of 1. The changes in fuel consumption and enrichment have little effect on low-energy photons, but significantly affected high-energy photons. The change in specific power has little effect on the photon generation of different energy groups. The operation mode has little effect on the radioactivity of the nucleus and fission products. Multivariate analysis of variance shows that specific power is the most influential factor, followed by enrichment; the least influential factor is fuel consumption.
中文翻译:
基于多元方差分析的堆芯源项计算与分析
核心源项的计算受多种因素的影响,例如燃料消耗、浓缩、比功率和运行模式。镧系元素的活性、裂变产物和光子源强度使用 ORIGEN 程序计算。通过多变量方差分析计算每个因素的权重。结果表明,锕系元素和裂变产物的放射性随着燃料消耗的增加而增加。随着富集的增加,裂变产物和锕系元素的放射性降低。裂变产物和锕系元素的放射性随比功率的变化呈线性增加,相关系数为1。燃料消耗和富集的变化对低能光子影响不大,但对高能光子影响显着。比功率的变化对不同能量组的光子产生影响不大。操作方式对原子核和裂变产物的放射性影响不大。多元方差分析显示,比功率是影响最大的因素,其次是富集;影响最小的因素是油耗。
更新日期:2021-06-03
中文翻译:
基于多元方差分析的堆芯源项计算与分析
核心源项的计算受多种因素的影响,例如燃料消耗、浓缩、比功率和运行模式。镧系元素的活性、裂变产物和光子源强度使用 ORIGEN 程序计算。通过多变量方差分析计算每个因素的权重。结果表明,锕系元素和裂变产物的放射性随着燃料消耗的增加而增加。随着富集的增加,裂变产物和锕系元素的放射性降低。裂变产物和锕系元素的放射性随比功率的变化呈线性增加,相关系数为1。燃料消耗和富集的变化对低能光子影响不大,但对高能光子影响显着。比功率的变化对不同能量组的光子产生影响不大。操作方式对原子核和裂变产物的放射性影响不大。多元方差分析显示,比功率是影响最大的因素,其次是富集;影响最小的因素是油耗。