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Related Experiment Video

Updated: Apr 29, 2026

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor

Published on: May 7, 2021

Neutron metrology laboratory facility simulation.

Mariana Pereira¹, Ana P Salgado², Aidano S Filho¹

¹Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, CEP: 20550-013, Maracanã, Rio de Janeiro, RJ, Brazil.

Radiation Protection Dosimetry

|May 28, 2014

Summary

This summary is machine-generated.

The Neutron Low Scattering Laboratory in Brazil was rebuilt. Monte Carlo simulations evaluated neutron scattering and air attenuation using referenced neutron sources for improved facility performance.

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Last Updated: Apr 29, 2026

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Area of Science:

Nuclear Physics
Radiation Physics
Neutron Scattering

Background:

The Neutron Low Scattering Laboratory in Brazil underwent a complete reconstruction.
Accurate characterization of neutron fields is crucial for experimental integrity.

Purpose of the Study:

To evaluate air attenuation parameters within the rebuilt laboratory.
To assess neutron component scattering in the laboratory environment.
To validate simulation methods for neutron transport analysis.

Main Methods:

Utilized the Monte Carlo simulation code (e.g., MCNP, Geant4) for modeling.
Simulated neutron fields generated by a referenced neutron source.
Calculated neutron scattering and air attenuation coefficients.

Main Results:

Quantified air attenuation parameters for various neutron energies.
Determined the contribution of neutron scattering from room components.
Validated the accuracy of the Monte Carlo simulation code for this specific environment.

Conclusions:

The Monte Carlo simulation approach effectively characterizes neutron fields in the rebuilt laboratory.
The study provides essential data for optimizing experimental setups and ensuring safety in the Neutron Low Scattering Laboratory.