title: Constancy check of beam quality in conventional diagnostic X-ray equipment.
abstract: A tandem ionization chamber was developed for quality control programs of X-ray equipment used in conventional radiography and mammography. A methodology for the use of the tandem chamber in the constancy check of diagnostic X-ray beam qualities was established. The application at a medical X-ray imaging facility of this established methodology is presented. The use of the tandem chamber in the constancy check of diagnostic X-ray beam qualities is a useful method to control the performance of the X-ray equipment.
authors.affiliation: Departamento de Física e Matemática, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, 14040-901, Ribeirão Preto, SP, Brazil. amcosta@usp.br
authors.forename: Alessandro M
authors.initials: AM
authors.lastname: Costa
authors.forename: Rômulo S
authors.initials: RS
authors.lastname: Badin
authors.forename: Marina S
authors.initials: MS
authors.lastname: Leite
authors.forename: Linda V E
authors.initials: LV
authors.lastname: Caldas
mesh_terms: D001938:Brazil; D011785:Quality Assurance, Health Care / Q000379:methods* / Q000592:standards*; D011829:Radiation Dosage; D011859:Radiography / Q000295:instrumentation* / Q000592:standards*; D011874:Radiometry / Q000379:methods* / Q000592:standards*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014965:X-Rays