JONAS OLIVEIRA DA SILVA
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Artigo IPEN-doc 24422 Performance tests of a special ionization chamber for X-rays in mammography energy range2017 - SILVA, J.O.; CALDAS, L.V.E.A special mammography homemade ionization chamber was developed to be applied for mammography energy range dosimetry. This chamber has a total sensitive volume of 6 cm3 and is made of a PMMA body and graphite coated collecting electrode. Performance tests as saturation, ion collection efficiency, linearity of chamber response versus air kerma rate and energy dependence were determined. The results obtained with this special homemade ionization chamber are within the limits stated in international recommendations. This chamber can be used in quality control programs of mammography energy range. All measurements were carried out at the Calibration Laboratory of IPEN.Artigo IPEN-doc 21016 Characterization tests and application of special ionization chambers in standard mammography beams2015 - HONDA, CRISTIANE J.C.; SILVA, JONAS O.; CALDAS, LINDA V.E.Artigo IPEN-doc 15762 Desempenho de um sistema tandem para controle de qualidade em radiodiagnostico2010 - SILVA, JONAS O.; CALDAS, LINDA V.E.Artigo IPEN-doc 18744 Stability study of ionization chambers in standard mammography radiation beams2012 - SILVA, JONAS O. da; CALDAS, LINDA V.E.Artigo IPEN-doc 18526 Avaliação de amostras termoluminescentes de BeO em feixes padrões de radioterapia2012 - GROPPO, DANIELA P.; SILVA, JONAS O. da; CALDAS, LINDA V.E.Artigo IPEN-doc 18528 Comparison of four parallel plate ionization chambers in standard X-ray beams, therapy level2012 - NONATO, FERNANDA B.C.; SILVA, JONAS O.; VIVOLO, VITOR; CALDAS, LINDA V.E.Artigo IPEN-doc 18531 Quality control tests in a mammographic unit using a homemade ionization chamber2012 - SILVA, JONAS O.; CORREA, EDUARDO L.; VIVOLO, VITOR; POTIENS, MARIA da P.A.; CALDAS, LINDA V.E.Artigo IPEN-doc 18569 Comparison of the energy dependence of two homemade ionization chambers in relation to a standard ionization chamber in low-energy kilovoltage X-ray beams, therapy level2012 - NONATO, F.B.C.; SILVA, J.O.; VIVOLO, V.; CALDAS, L.V.E.Artigo IPEN-doc 18568 Comparing the stability of two ionization chambers in standard mammography radiation beams and using an Sr-90+Y-90 check device2012 - SILVA, J.O.; CALDAS, L.V.E.Artigo IPEN-doc 18544 Intensity variation study of the radiation field in a mammographic system using termoluminescent dosemeters2012 - CORREA, E.L.; SILVA, J.O.; VIVOLO, V.; POTIENS, M.P.A.; DAROS, K.A.C.; MEDEIROS, R.B.