Details are as follows:
According to the calculation of passing the subway security check twice a day for 365 days a year, the annual radiation dose of subway passengers due to subway security check does not exceed 0.0 1mSv( 10μSv), which is only equivalent to the natural background radiation dose of 1.5 days or the radiation dose of flying for 2 hours, so it will not cause harm to passengers.
The radiation dose of the light baggage security device is far less than that of the X-ray machine for medical diagnosis, and the radiation around the machine is very weak, so even full-time operators can work safely without protection.
The relevant person in charge of the Ministry of Environmental Protection said that the production unit of the X-ray baggage inspection instrument must apply for a radiation safety license in accordance with the requirements of laws and regulations, and the radiation safety indicators of the products produced must also meet the requirements of relevant standards. These devices will not cause physical harm to the environment and the passing public in normal use.
Extended data:
How to reduce radiation when passing through the security inspection machine;
1. Please don't put your hand into the black shielding strip when carrying bags or other items that have passed through the security inspection machine.
2. Pregnant women and disabled people can pass the security check with the help of security personnel.
Please don't touch the security machine or climb in to play.
References:
Baidu encyclopedia -X-ray security instrument
People's Network-Ministry of Environmental Protection: The subway security inspection equipment that meets the radiation safety index is harmless.