在地铁、火车站、机场,行李物品需通过安检后,才能进站。然而,经常有人因为赶时间,行李没出来就迫不及待地掀开安检仪门帘,把包拽出来。这一小小的动作很有可能令自己暴露在辐射之下。安检仪主要是通过X射线透视的原理来检查人们携带物品中是否有违禁品,但是通常它产 In the subway, train station, and airport, baggage items must go through security before they can enter the station. However, it is often because of a hurry, when the baggage does not come out, it can’t wait to open the security instrument curtain and pull out the bag. This little action is likely to expose itself to radiation. The security instrument is mainly used to check whether there are contraband in people’s carrying articles through the principle of X-ray fluoroscopy, but usually it produces