Testing the Activation Analysis for Fusion in OpenMC

IF 1.3 4区 物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS
Son N. Quang;Nicholas R. Brown;G. Ivan Maldonado
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引用次数: 0

Abstract

OpenMC is a community-developed Monte Carlo neutron and photon transport simulation code. It can perform fission simulations, such as fixed-source, k-eigenvalue, and subcritical multiplication calculations on models built using either a constructive solid geometry (CSG) or CAD representation. To explore the use of OpenMC for fusion activation analysis, a detailed model of the Fusion Neutronics Science Facility (FNSF) was first developed for comparisons against an existing SERPENT model. A 90° model of FNSF in standard-triangle language (STL) CAD format was converted to CSG using each code’s built-in functions, and the geometries were validated by ensuring no cells overlapped and no particles were lost during simulations. The neutron fluxes were calculated and compared for multiple components close to the plasma. The results show differences mostly below 1% in fluxes and averaged 8% for activity and decay heat. The work described in this study tests the CAD-based geometry using the DagMC toolkit in OpenMC and compares the activation analysis of OpenMC to SERPENT code.
测试 OpenMC 中的融合激活分析
OpenMC是一个社区开发的蒙特卡罗中子和光子传输模拟代码。它可以执行裂变模拟,如固定源,k-特征值,和亚临界乘法计算的模型建立使用建设性固体几何(CSG)或CAD表示。为了探索OpenMC在聚变激活分析中的应用,首先开发了一个聚变中子科学设施(FNSF)的详细模型,与现有的SERPENT模型进行比较。将标准三角语言(STL) CAD格式的90°FNSF模型使用每个代码的内置函数转换为CSG,并在模拟过程中确保无细胞重叠和无颗粒丢失,从而验证几何形状。计算并比较了靠近等离子体的多个组分的中子通量。结果表明,通量的差异大多在1%以下,活度和衰变热的平均差异为8%。本研究中描述的工作使用OpenMC中的DagMC工具包测试基于cad的几何图形,并将OpenMC的激活分析与SERPENT代码进行比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
IEEE Transactions on Plasma Science
IEEE Transactions on Plasma Science 物理-物理:流体与等离子体
CiteScore
3.00
自引率
20.00%
发文量
538
审稿时长
3.8 months
期刊介绍: The scope covers all aspects of the theory and application of plasma science. It includes the following areas: magnetohydrodynamics; thermionics and plasma diodes; basic plasma phenomena; gaseous electronics; microwave/plasma interaction; electron, ion, and plasma sources; space plasmas; intense electron and ion beams; laser-plasma interactions; plasma diagnostics; plasma chemistry and processing; solid-state plasmas; plasma heating; plasma for controlled fusion research; high energy density plasmas; industrial/commercial applications of plasma physics; plasma waves and instabilities; and high power microwave and submillimeter wave generation.
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