Calibration of dosemeters used in mammography with different X ray qualities: Euromet Project No. 526

Absorbed Dose Measurement in Mammography

“…However, they are energy-dependent and must be calibrated with care (Witzani et al, 2004). When the detector is exposed to radiation, electron-hole pairs are created and a current is generated, proportional to the radiation absorbed by the detector.…”

Comparison of air kerma measurements between the PTB and the IAEA for x-radiation qualities used in general diagnostic radiology and mammography

“…The IAEA Dosimetry Laboratory, DOL, in Seibersdorf Austria, performs calibration of reference diagnostic dosemeters of IAEA/WHO SSDL 1 Network members (more than 80 laboratories worldwide). As a signatory of the CIPM MRA, the DOL maintains a quality management system (QMS) complying with ISO 17025.…”

“…The first similar comparison was the EUROMET.RI(I)-S4 comparison with 13 participants started in 2000. Its result was published in 2004 [1]. In the meantime the DOL changed the beam qualities and measurement standards.…”

"Espectrometria de raios X em mamografia aplicada à proteção radiológica"

“…A fim de validar o método de medição e redução dos espectros adotamos o feixe de raios X primário emitido pelo sistema não clínico(IEE/USP) como feixe padrão, uma vez que este tipo de feixe pode ser usado como padrão para calibração de instrumentos tais como dosimetros e câmaras de ionização na região de energia utilizada em mamografia [47,55].…”