Artigo De: orcid, cienciavitae
The determination of the focal spot size of an X-ray tube from the radiation beam profile
Radiation Measurements
2015 — Elsevier
—Informações chave
Autores:
Publicado em
Novembro 2015
Resumo
The aim of this work is to show that the focal spot size of a given X-ray tube can be determined from the profile of the radiation beam without the use of devices specifically designed for that task. The approach presented relies on a simple model for the radiation beam profile and on an analytical function used to fit the beam profile data. The basics of the profile function are outlined and the relationship between the fitting and the profile parameters are deduced. The relationship of the proposed method with the edge spread function and line spread function concepts is discussed. The focal spot size of an X-ray tube used at the Laboratory for Metrology of Ionizing Radiation (LMRI) of IST was determined using the proposed method. In the analysis of the experimental results, the heel-effect was also evaluated.
Detalhes da publicação
Autores da comunidade :
Augusto Manuel Dias de Oliveira
ist24851
João Henrique Garcia Alves
ist25363
Versão da publicação
AO - Versão original do autor
Editora
Elsevier
Ligação para a versão da editora
https://www.sciencedirect.com/journal/radiation-measurements
Título do contentor da publicação
Radiation Measurements
Primeira página ou número de artigo
145
Volume
82
ISSN
1350-4487
WoS (Web of Science)
Domínio Científico (FOS)
other-engineering-and-technologies - Outras Ciências da Engenharia e Tecnologias
Palavras-chave
- X–ray tube
- Focal spot size
- Beam profile
Idioma da publicação (código ISO)
eng - Inglês
Identificador alternativo (URI)
http://dx.doi.org/10.1016/j.radmeas.2015.09.010
Acesso à publicação:
Acesso apenas a metadados