Don't worry, it's okay. X-ray machine has no radiation without power supply. X-rays are not emitted by radioactive elements, but are generated by high-voltage current in the tube of the X-ray machine. Some x-rays hit the wall through the past, and some x-rays bounce back after attenuation. In this process, the residual parts of X-rays gradually disappear. Your house will rot faster because there is no lead protection. On the contrary, it is slow, because X-rays can't penetrate the lead plate, so they can only bounce back and forth and disappear again. Therefore, hospitals do not do six-sided lead protection, even if they do, they should leave a hole in it or other places to cast the remaining X-rays.
One day, you can wait a day or two to stay, but it doesn't matter if you stay. The dose is not enough to hurt you.
I'm from Tianjin Sheng Bang Medical Equipment Company. You can call me again if you have any questions.