Abstract：Abstract:With the continuous improvement of the diagnostic X-ray quality evaluation system, tube voltage has become an equally important index for evaluating the quality of X-ray radiation beams such as half-value layer, homogeneity coefficient and equivalent tissue depth. In this paper, the measurement method and traceability method of medical breast tube voltage are mainly studied. Two methods are used to measure the tube voltage, namely the interventional voltage divider box voltage division method and the energy spectrum endpoint method. The measurement results are quantitatively transmitted to several semiconductor standard detectors commonly used in the market. The experimental results show that the maximum difference between the two methods of tube voltage measurement is within 1.0%, which is reliable. The voltage measurement results of four semiconductor detector tubes commonly used in the domestic market were calibrated, and the deviation of the relative inherent error was within 2.0%, which can be used for on-site quality control of medical breast machines.
2024, Vol. 45 
