New article published in 12(4B) - ENFIR/INAC 2024

Preliminary Risk Analysis for the Installation of Small Modular Reactors in Energy-Deficient Regions of Brazil

Abstract: This paper aims to review the feasibility of implementing PWR-type Small Modular Reactors (SMRs) in Brazil, utilizing the 5W2H methodology for a preliminary risk assessment. SMRs are seen as a promising solution to meet the country's growing electricity demand and diversify its energy matrix, particularly in underserved regions. With projections extending to 2050, the construction of these reactors offers significant benefits, leveraging modularization techniques to accelerate deployment and reduce costs. Selecting optimal locations—such as areas near the São Francisco River—and fostering collaboration between government and private entities are crucial for the project's success. While this analysis is preliminary, the findings suggest that SMR adoption in Brazil presents a strategic opportunity to enhance energy sustainability, reduce greenhouse gas emissions, and ensure a secure and efficient energy future for the country's most disadvantaged regions. Read full article. 

A collimator design for using HPGe detectors in neutron beams

Abstract: The use of detectors in neutron beams, particularly within Prompt Gamma Neutron Activation Analysis (PGNAA) facilities, is essential for accurate elemental analysis. However, operating these detectors in high-dose radiation fields presents significant challenges, primarily due to high background radiation rates. In this study, three distinct collimator designs were evaluated through Monte Carlo simulations, using the gamma spectrum from a fission reactor as the radiation source. The best-performing collimator was shown to optimize the performance of HPGe detectors, enhancing the accuracy of elemental detection under high-background conditions. Read full article.