Monte Carlo modeling of the Portuguese Research Reactor core and comparison with experimental measurements

被引：9

作者：

Fernandes, AC ^{[1
]}

Gonçalves, IC ^{[1
]}

Barradas, NP ^{[1
]}

Ramalho, AJ ^{[1
]}

机构：

[1] Nucl & Technol Inst, P-2686953 Sacavem, Portugal

来源：

NUCLEAR TECHNOLOGY | 2003年 / 143卷 / 03期

关键词：

Monte Carlo code; reactor simulation; activation measurement;

D O I：

10.13182/NT03-A3423

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 Monte Carlo code MCNP-4C was used to calculate the effective multiplication coefficient of a core configuration of the Portuguese Research Reactor (RPI) and the neutron fluxes in the core and in the reflector region. A comparison of the results obtained with MCNP and with the deterministic codes WIMSD-5 and CITATION was made. Consistent deviations of 2% for the effective multiplication constant and 8 to 28% for the neutron flux, depending on the energy range, were observed. Thermal, epithermal, and fast neutron flux measurements were performed using activation detectors. The calculations agree with experimental values within <15%; therefore, the Monte Carlo results can be used to predict the neutron field in other locations and irradiation facilities of the RPI.

引用

页码：358 / 363

页数：6