This is definitely a violation of the relevant provisions of radiation health protection, and it is also a violation of the law on the prevention and control of occupational diseases from the legal level, and it is definitely illegal. Those who didn't go up were also irradiated by x-rays. How much did they charge? They have received more than a dozen X-ray examinations, which is about 0.5 times that of CT. Because of different body types, the amount of X-rays is different each time. According to statistics, taking a CT is equivalent to taking about 40 X-rays. So each of you took half an X-ray CT. So it won't have much impact, otherwise the doctor wouldn't dare to do it.
Correction: The X-ray machine will not be on all the time. Just like taking pictures with a camera, people set their positions. When the doctor presses the button, the exposure of a few tenths of a second is over. If you continue to have X-rays for five minutes, you will all be finished.
But in any case, it is definitely wrong and illegal for doctors to do so.