Establishment of radiation qualities for radiodiagnostics in LCR/UERJ according to IEC 61267 and TRS 457

• Establishment the radiation qualities for X-ray calibrations in radiodiagnostics.
• Comparison to kV between invasive and noninvasive method.
• Determination of additional filtrations suggested by IEC 61267.
• Determination of the radiation scattered by the experimental setup as TRS 457.
• Determination of HVLs as TRS 457.

The main goal of this work is to establish the radiation qualities of the Laboratório de Ciências Radiológicas (LCR) conventional X-ray equipment for calibrations in radiodiagnostics according to the recommendations of IEC 61267 and TRS 457. Tests were conducted to evaluate the homogeneity of the radiation field, high voltage applied to the X-ray tube, scattering, half-value layers (HVL) and homogeneity coefficients. The results obtained that characterize the radiation field, satisfy the conditions required by TRS 457. Invasive high voltage measures presented results compatible with the requirements of this standard. The HVL measures showed that for the first HVL the tolerance limits of IEC 61267, and the values for the homogeneity coefficients were within the limits established. The quality tests performed in this work were highly satisfactory in meeting the standard requirements. Thus, the main goal was achieved, and the methodology can be used by other similar X-ray systems.