The subway security equipment has radiation, will it endanger human health?

First of all, not all radiation will do harm to human body. When we talk about radiation, we must distinguish between two forms of radiation, one is ionizing radiation, and the other is electromagnetic radiation. The radiation emitted by items we usually contact, such as electronic products, mobile phones and computers, is electromagnetic radiation, which will not cause harm to the human body. Only ionizing radiation will emit rays and have an impact on the human body. Moreover, when we usually pass the security check, the hand-held security check instrument held by the security check personnel emits the same radiation as our mobile phone, which belongs to electromagnetic radiation and will not cause harm to the human body. This kind of security detector mainly detects whether passengers are carrying metal objects by radiating electromagnetic fields, which is equivalent to a metal detector.

The main function of the security door we usually pass is also to detect whether passengers carry metal sharp weapons. The principle used is that electromagnetic induction will not cause harm to human body. Therefore, for these two kinds of testing instruments, we don't have to worry about the harm to our bodies at all. In the process of safety, only one program actually emits radiation harmful to human body. Then we are the X-ray security device that luggage usually goes through.

The principle of this security instrument is actually the same as that of the X-ray machine in our hospital, but in terms of radiation, it is much lower than the medical-grade radiation in the hospital, and this part of the security instrument is often only allowed for luggage, so it will not cause harm to the body, and its use is actually within the scope allowed by our country. So we don't have to worry about it hurting ourselves.

Like the X-ray security device we usually experience, its radiation measurement is only110, which will not cause any harm to human body. Converted, the radiation amount of a chest X-ray is about equivalent to 100 times, so it is very safe.