Reactivity worth measurements at the IPEN/MB-01 nuclear reactor

Abstract

Researches that aim to improve the performance of neutron transport codes and quality of nuclear cross section databases are very important to increase the accuracy of simulations and the quality of the analysis and prediction of phenomena in the nuclear field. In this context, relevant experimental data such as reactivity worth measurements are needed. The objective of this work was to perform a series of experiments of reactivity worth measurements, using a digital reactivity meter developed at IPEN. The experiments employed small metallic and ceramic samples inserted in the central region of the core of the experimental IPEN/MB-01 reactor. The theoretical analysis was performed by the MCNP-5 reactor physics code, developed and maintained by Los Alamos National Laboratory, and the ENDF/B-VII.0 nuclear data library.

Control rod calibration and reactivity effects at the IPEN/MB-01 reactor

“…2,3,4,5 It was necessary to correct all results of the experiments 6 for the temperature of 20.5°C, to be possible make the comparison with the theoretical results. The theoretical analysis was performed by the reactor physics code MCNP-5, using the nuclear data library ENDF/B-VII.0.…”

Dificuldades E Estratégias Da Família No Cuidado Da Criança Portadora De Microcefalia

“…Cuidadora-11 Como principal cuidadora, a mãe, torna-se responsável por manter o processo de bem-estar da criança microcefálica, devendo ter atenção redobrada a depender do grau de incapacidade que essa criança apresente. De tal modo as mães sentem uma sobrecarga pelo tempo e pelas responsabilidades exigidas neste cuidado (12) .…”