A PROGRAM COMPLEX KIR VERIFICATION ON CRITICAL EXPERIMENTS WITH SOLUTION ASSEMBLIES

PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY. SERIES: NUCLEAR AND REACTOR CONSTANTS Pub Date : 2020-12-26 DOI:10.55176/2414-1038-2020-4-26-32

E. Gomin, V. Davidenko, R. Shirokov

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Abstract

The article presents the results of testing the KIR code designed to solve the neutron transfer equation by the Monte Carlo method, based on available experimental data from the international Bank ICSBEP on solution benchmarks. The KIR program is part of the DAREUS program complex designed for modeling dynamic processes in solution reactors. Computer models of 13 critical assemblies were created. The total number of calculated configurations was 137. The results were analyzed and the calculation errors were determined both in comparison with the experiment and with other programs. In most cases, the calculated keff multiplication factor falls within the experimental error. The obtained calculation results show a mean square deviation of the multiplication coefficient of 0.7 % for all calculated configurations of experimental assemblies. However, for a number of assemblies, there are significant differences in the assessment. Similar deviations in the calculated values of keff were observed in a variety of previously performed calculations for other codes. The article presents the main factors affecting the results of calculations. Mainly they are related to the insufficiently complete description of experiments submitted to the ICSBEP International Bank.

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一个程序复杂的kir验证关键实验与解决方案组装

本文介绍了用蒙特卡罗方法求解中子传递方程的KIR代码的测试结果，该代码基于国际银行ICSBEP在求解基准上的现有实验数据。KIR项目是DAREUS项目的一部分，该项目是为模拟溶液反应堆中的动态过程而设计的。建立了13个关键组件的计算机模型。计算出的配置总数为137。对计算结果进行了分析，并与实验和其他程序进行了比较，确定了计算误差。在大多数情况下，计算的keff乘法系数在实验误差范围内。得到的计算结果表明，所有实验组件的计算构型的乘法系数的均方差为0.7%。然而，对于一些大会，在评估方面存在显著差异。在以前对其他规范进行的各种计算中，也观察到keff计算值的类似偏差。文章介绍了影响计算结果的主要因素。它们主要与提交给ICSBEP国际银行的实验描述不够完整有关。

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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PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY. SERIES: NUCLEAR AND REACTOR CONSTANTS

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