Aplicação de câmaras de ionização especiais para controle de qualidade em mamografia

Content Provider	Semantic Scholar
Author	Honda, Cristiane Jordão De Carvalho
Copyright Year	2015
Abstract	Mammography is an examination in mammography, which uses X-rays to obtain images of the internal anatomy of the breast. To provide a correct diagnosis, it is necessary that the equipment constantly undergo quality control programs to ensure that patients submitted to this examination do not receive more than the necessary dose, thus avoiding unwanted possible biological effects. The ionization chambers are widely used detectors to perform the quality control program of equipment with radiation, as mammographers. In the present study, four different special ionization chambers, developed at the Calibration Laboratory of Instruments of IPEN LCI / IPEN, were submitted to the characterization tests in standard X radiation beams at the LCI. The results were satisfactory, within the limits estabilished by national and international standards. As an application, the ionization chambers were used for quality control tests in four mammography clinics from different institutions, as the repeatability and linearity of the air kerma rate. The results obtained in these tests were within the limits recommended by national and international standards.
File Format	PDF HTM / HTML
DOI	10.11606/D.85.2015.tde-16092015-095035
Alternate Webpage(s)	https://teses.usp.br/teses/disponiveis/85/85131/tde-16092015-095035/publico/2015HondaAplicacao.pdf
Alternate Webpage(s)	https://doi.org/10.11606/D.85.2015.tde-16092015-095035
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article