Busca avançada
Ano de início
Entree


Feasibility study of the use of a silicon photomultiplier coupled to a scintillator for kVp measurement based on spectrometry

Texto completo
Autor(es):
da Silva, Jonathan Rodrigues ; Murata, Helio Massaharu ; dos Santos, Leonardo Camargo ; Nunez, Juan Antonio Alcantra ; Carvalho, Diego Vergacas de Souza ; dos Santos, Adelson Duarte ; Rodriguez, Ubaldo Banos ; Potiens, Maria da Penha Albuquerque ; Bonifacio, Daniel Alexandre Baptista
Número total de Autores: 9
Tipo de documento: Artigo Científico
Fonte: Radiation Physics and Chemistry; v. 229, p. 9-pg., 2024-12-06.
Resumo

This study proposes a spectroscopic and non-invasive approach to measure the kVp of an X-ray tube using a silicon photomultiplier (SiPM) coupled to a GaGG scintillator crystal. Several experimental setups were explored to assess the feasibility and performance in measuring the kVp based on international standards IEC 61267:2005 and IEC 61676:2002. The energy spectrum was obtained through pulse height analysis. System calibration was performed using radioactive sources emitting characteristic X-rays and gamma radiation. Determination of the maximum energy of the X-ray spectrum was based on a linear regression aiming for a goodness of the fit to reduce uncertainty in kVp. The approach was successfully evaluated for specific radiology beams, including mammography, with a maximum uncertainty of 6.5% in the kVp values for the tested beam qualities. (AU)

Processo FAPESP: 23/00079-8 - Desenvolvimento de um identificador de radionuclídeos baseado em espectroscopia nuclear e técnicas de aprendizado de máquina
Beneficiário:Ubaldo Baños Rodríguez
Modalidade de apoio: Auxílio à Pesquisa - Pesquisa Inovativa em Pequenas Empresas - PIPE