Experimental apparatus for measurement of photoneutrons from linear accelerator with energy of 16 MeV

Marcelo Vilela da Silva; Domingos D'Oliveira Cardoso; Sergio de Oliveira Vellozo

doi:10.15392/bjrs.v9i3.1615

Autores/as

Marcelo Vilela da Silva Universidade Federal do Rio de Janeiro
Domingos D'Oliveira Cardoso Military Institute of Engineering
Sergio de Oliveira Vellozo Military Institute of Engineering

DOI:

https://doi.org/10.15392/bjrs.v9i3.1615

Palabras clave:

Particle accelerator, Experimental apparatus, Neutron detectors.

Resumen

Particle accelerator technology has a deep impact on society. Its applications are well established mainly in the treatment of cancer and other diseases. This work aims to develop an experimental apparatus with ³He detectors for 16 MeV photoneutron measurements. The apparatus allows us to obtain multienergetic neutrons with the use of a 22 cm diameter spherical attenuator associated with different shield thicknesses. The microscopic processes of the fast and thermal neutrons in the detector were described by the two energy-group diffusion equation. The Detector Response Dose Rate results show a directly proportional relationship between these two variables with a degree of reliability attested by the linear correlation coefficient .Particle accelerator technology has a deep impact on society. Its applications are well established mainly in the treatment of cancer and other diseases. This work aims to develop an experimental apparatus with ³He detectors for 16 MeV photoneutron measurements. The apparatus allows us to obtain multienergetic neutrons with the use of a 22 cm diameter spherical attenuator associated with different shield thicknesses. The microscopic processes of the fast and thermal neutrons in the detector were described by the two energy-group diffusion equation. The Detector Response Dose Rate results show a directly proportional relationship between these two variables with a degree of reliability attested by the linear correlation coefficient .

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