What's the difference between X-ray machine and security inspection machine and X-ray machine?

There are two aspects to a safety X-ray machine. One is a high-radiation X-ray machine for baggage security inspection at the station. This kind of equipment is a multifunctional detection source, which needs to penetrate thick steel plate when working, so its radiation source has a large workload and will produce certain X-ray radiation. However, because the baggage security machines are all radiation-proof, you can't put your hand into the X-ray machine during the inspection in Lian. The other is what we usually call a medical X-ray machine. Because the energy used by this machine is very low, usually between 50 and 250 milliamps, it will not produce any radiation to the human body. In other words, even if the doctor puts his hand into the machine, it won't be hurt. Therefore, it is necessary to distinguish between different situations to find out whether the security X-ray machine has radiation on the human body.