Abstract NTP-ERSN is a package developed for solving the multigroup form of the discrete ordinates, characteristics and collision probability of the Boltzmann transport equation in one-dimensional cartesian geometry, by combining pin cells. In this work, C5G7 MOX benchmark is used to verify the accuracy and efficiency of NTP-ERSN package, by treating reactor core problems without spatial homogenization. This benchmark requires solutions in the form of normalized pin powers as well as the vectors and the eigenvalue. All NTP-ERSN simulations are carried out with appropriate spatial and angular approximations. A good agreement between NTP-ERSN results with those obtained with OpenMC calculation code for seven energy groups. In addition, our studies about angular and mesh refinements are carried out to produce better quality solution. Moreover, NTP-ERSN GUI has also been updated and adapted to python 3 programming language.

中文翻译：

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NTP-ERSN 验证与 C5G7 1D 扩展基准和 GUI 开发

摘要 NTP-ERSN是为求解一维笛卡尔几何中玻尔兹曼输运方程的离散纵坐标、特征和碰撞概率的多群形式而开发的软件包。在这项工作中，C5G7 MOX 基准用于通过处理没有空间均质化的反应堆堆芯问题来验证 NTP-ERSN 包的准确性和效率。该基准测试需要归一化引脚功率以及向量和特征值形式的解决方案。所有 NTP-ERSN 模拟都使用适当的空间和角度近似值进行。NTP-ERSN 结果与使用 OpenMC 计算代码获得的七个能量组的结果之间具有良好的一致性。此外，我们还进行了有关角度和网格细化的研究，以产生更优质的解决方案。而且，