Secondar neutrons induced from a medical proton accelerator in a water phantom

This study investigates the production of radiation-induced secondary neutrons resulting from the irradiation of a water phantom by a medical proton accelerator. Measurements were conducted using a 2-inch by 2-inch stilbene scintillation detector. To distinguish between neutrons and the gamma backgr...

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Detalles Bibliográficos
Autores: Sơn, Nguyễn Khắc, Hải, Võ Hồng, Phát, Trần Ngọc Tiến, Thiện, Trần Công
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:Brasil
Institución:Instituto Superior de Educação Vera Cruz (VeraCruz)
Repositorio:Revista Veras
Idioma:inglés
OAI Identifier:oai:ojs2.ojs.brazilianjournals.com.br:article/69092
Acceso en línea:https://ojs.brazilianjournals.com.br/ojs/index.php/BRJD/article/view/69092
Access Level:acceso abierto
Palabra clave:neutron
medical proton accelerator
pulse shape discrimination
stilbene scintillation detector
Descripción
Sumario:This study investigates the production of radiation-induced secondary neutrons resulting from the irradiation of a water phantom by a medical proton accelerator. Measurements were conducted using a 2-inch by 2-inch stilbene scintillation detector. To distinguish between neutrons and the gamma background, we applied a pulse shape discrimination technique utilizing the charge integration ratio (Qratio) method. Our analysis carries out for three proton beam energies: 76 MeV, 80 MeV, and 132 MeV. The findings demonstrate the feasibility of using a stilbene scintillator detector in conjunction with the Qratio method for the measurement and analysis of secondary neutrons, which are detectable in significant quantities.