Focal spot track reconstruction method of rotating anode X-ray tube

The invention relates to a method for reconstructing a focal spot track of a rotating anode X-ray tube, which is characterized by comprising the following steps of: firstly increasing the temperature of a target surface focal spot position to T when an electron beam bombards a target surface, enabling a target surface alloy to reach a molten state at the temperature T so as to damage an original grain structure, and then cooling the target surface alloy and forming a new crystal structure. Through a track reconstruction technology, the service life of the X-ray tube is prolonged exponentially; on the premise that the service life of the X-ray tube is ensured, the performance of the X-ray tube can be fully exerted, and the service life does not need to be prolonged by reducing the performance. 本发明涉及一种旋转阳极X射线管的焦斑轨迹重建方法，其特征在于：包括先提高电子束轰击靶面时靶面焦斑位置的温度至T，在该温度T下靶面合金达熔融状态以破坏原来的晶粒结构，再对靶面合金进行冷却并形成新的晶体结构。本发明通过轨迹重建技术，成倍延长X射线管的使用寿命；可以在确保X射线管寿命的前提下，充分发挥X射线管的性能，而不需要通过降低性能来提高使用寿命。