The best choice of chest radiography tube voltage is

5-12kV. The voltage of the chest radiography tube should be between 5 and 12 kV, and different lesions need different voltages. High voltage can improve the definition of the image, but it will also increase the radiation dose and the risk. In order to minimize radiation damage, it is often necessary to optimize the voltage of the photographic tube to obtain the best imaging effect and the minimum radiation dose. When conducting any medical examination, it is necessary to follow strict medical guidelines and abide by relevant regulations to ensure the effectiveness and safety of the examination.