I want to know the harm of being irradiated by X-ray flaw detector.

There should be no real problem, right? It's almost like taking an X-ray in a hospital. Don't worry. The irradiation time is not very long, so it should be no problem.

It is stipulated that the annual effective dose limit of general occupational exposure is 6 msv/a; According to this standard, the annual effective dose limit of public exposure is 0.3 msv/a.

According to the flaw detector with a voltage of 250kv, in case of accident, х rays directly irradiate people, and the strayed people stay at a distance of 1 m/min, and the maximum effective dose they receive is 22.5mSv/ time, far exceeding the limit stipulated by the standard; The maximum effective dose is 0.90mSv/ time at a distance of 5m from the radiation head and 0.23mSv/ time at a distance of 10m. See how long and how far you have been irradiated, and you will know how much dose you have been irradiated.