Using the Few-Group Approximation for Calculating Some Neutron-Physical Characteristics of VVER-1000 Core by Means of the Monte Carlo Universal Code

被引：0

作者：

Bikeev, A. S. ^{[1
]}

Daichenkova, Yu S. ^{[1
]}

Kalugin, M. A. ^{[1
]}

Shkarovsky, D. A. ^{[1
]}

Shkityr, V. V. ^{[2
]}

机构：

[1] Kurchatov Inst, Natl Res Ctr, Pl Kurchatov 1, Moscow 123182, Russia

[2] Natl Res Nucl Univ MEPhI, Moscow Engn Phys Inst, Dept Theoret & Expt Phys Nucl Reactors, Kashirskoe H 31, Moscow 115409, Russia

来源：

JOURNAL OF NUCLEAR ENGINEERING AND RADIATION SCIENCE | 2022年 / 8卷 / 02期

关键词：

D O I：

10.1115/1.4052340

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The main purpose of this work is to study the possibility of using the few-group approximation for calculation of some neutron-physical characteristics of VVER-1000 core by means of special version of Monte Carlo Universal code. The Monte Carlo method for VVER-1000 core neutron-physical characteristics calculation using the few-group approximation with an estimate of neutron cross sections "by location" was provided and tested in this research. The reduction of calculation time due to the transition from a pointwise model of representation of cross sections to the few-group approximation and methodical error of this approach were evaluated. Optimal number of energy groups was determined. It was found that consideration of the scattering anisotropy leads to a significant decrease in methodical error. Ways of further reduction of methodical error were worked out.

引用

页数：6

共 11 条

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