Mapping of the radiation field of a mammography equipment using molybdenum and rhodium filters
DOI:
https://doi.org/10.15392/bjrs.v3i1A.176Keywords:
X-ray, Mammography, Radiation beamAbstract
The use of X rays for diagnostic radiology is very common and important to Medicine, including mammographic diagnosis focusing decreasing of the doses applied to the patients and preserving high quality of the diagnostic image. A quality control program of the irradiation systems it is very necessary. The Instruments Calibration Laboratory (LCI) of IPEN perform calibration in dosemeters used in radiation dosimetry (in diagnostic radiology) for many years. The objective of that paper is determining the point of greatest intensity of the beam issued by the mammograph equipment. Exposures were made with filters Rhodium and Molybdenum. That mapping is important before applied a routine quality control program of the mammograph equipment and the calibration of instruments in the diagnosis.
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INCA - Instituto Nacional Do Câncer. Estimativa | 2012 - Incidência de Câncer no Brasil. Rio de Janeiro, RJ - 2011.
IAEA - Internacional Atomic Energy Agency - Dosimetry in Diagnostic Radiology: an Inter-national Code of Practice. TRS 457, (2007)
CORRÊA, E. de L. Metodologia de controle de qualidade e implantação de campos padrões de radiação X, nível mamografia, seguindo a norma IEC 61267. São Paulo, São Paulo, Brazil. Available at: <http://www.teses.usp.br/teses/disponiveis/85/85131/tde-01082011-095103/>. Last accessed: 10 March 2014
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