Establishment of a quality control program to PKA meters

In recent years, the number of interventional procedures involving the use of radiation has increased, such as in cardiological procedures using fluoroscopy. The main measuring instrument used in these procedures is the product kerma air-area (PKA) meter. To ensure reliability in delivering the dose to the patient and adequate protection for IOEs, it is necessary that such equipment is properly calibrated. The IEC 60580:2019 standard presents the performance requirements for meters of this quantity. The method normally used to calibrate and control these meters is the use of cylindrical reference ionization chambers calibrated to the RQR radiation qualities recommended by the ISO 61267 standard. However, these reference chambers have a very different manufacturing geometry than the PKA meters. (author)