Is there radiation in the security check?

Security inspection will come into contact with security inspection equipment, so it will be exposed to radiation, but the harm of radiation is not great and will not have a substantial impact on the staff. The X-ray intensity of baggage security detector is much smaller, and the radiation dose is about 1% of that of medical X-ray imager. When the luggage passes through the security inspection instrument channel, the influence on the contents can be basically ignored.

Moreover, the four sides of the baggage security instrument are shielded by lead plates with a certain thickness, and the baggage security channel is also shielded by lead rubber curtains, which can reduce the radiation dose on the outer surface of the security instrument by about two orders of magnitude.

The X-ray full-body scanner of airport security inspection adopts backscattered X-ray detection technology, and uses low-energy X-rays, which can only enter human skin tissue for several millimeters. Due to the low energy and intensity of X-rays used by the whole body scanner, the radiation dose received by the whole body security inspection is about one fifth of that of X-rays, and the impact is relatively small.

Extended data:

Human radiation acceptance standard

According to the Basic Standards for Protection of Ionizing Radiation and Safety of Radiation Sources, the annual radiation dose of normal people should not exceed 1mSv. The national standard GB 15208. 1-2005 stipulates that the single inspection dose of X-ray security instrument is

Take the X-ray security inspection equipment used in the subway as an example, and its single inspection dose is 0.534? Gy, the radiation dose at the outer surface of 5cm is 0.788μGy/h, which is about110 of the upper limit stipulated by the national standard.

According to the data reported by the United Nations Scientific Committee on Radiation Effects, the radiation dose of chest X-ray examination is 50? Gy. That is to say, even if people are really put into this X-ray security device, it will take about 100 scans to reach the radiation dose received by a chest X-ray.

References:

People's Network-Is the X-ray Security Instrument Radiation Safe?