POTIENS, M.P.A.VIVOLO, V.MIRANDA, J.A.CALDAS, L.V.E.2014-11-172014-11-182015-04-022014-11-172014-11-182015-04-02POTIENS, M.P.A.; VIVOLO, V.; MIRANDA, J.A.; CALDAS, L.V.E. Flat ionization chambers as monitors in x-ray beams. In: INTERNATIONAL MEETING ON APPLIED PHYSICS, 1st, Oct. 13-18, 2003, Badajoz, Espanha. <b>Proceedings...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/15433.http://repositorio.ipen.br/handle/123456789/15433The performance of two flat ionization chambers, designed for dose measurements behind phantoms, was studied in the established diagnostic radiation qualities, radiology level, at the Calibration Laboratory of IPEN, with filtering corresponding to a position in front of a patient. The chambers were positioned, sequentially, in front of the collimator as monitor chambers. The air kerma rates measured with the reference ionization chamber, using each of the flat ionization chambers positioned in the field, showed a decrease of less than 15%, showing their usefulness as monitor chambers.openAccessionization chambersphantomsdosemetersx-ray sourcesbeam monitorscalibrationdiagnosisradiologyTexto completo de eventohttps://orcid.org/0000-0002-7362-2455https://orcid.org/0000-0002-4049-6720