With the development of society and economy, X-ray Screening has been widely used in various fields, but it has also been slowly discovered by some people. Due to the occurrence of nuclear accidents and nuclear accidents in Japan in the past few years, the panic of nuclear radiation has been spreading all over the world. The shadow of "talking about radiation color change" triggered by "talking about nuclear color change" has quietly enveloped people's minds. While the community is paying close attention to the impact of “nuclear radiation”, the security industry is also conducting a heated discussion about whether X-ray Screening equipment is “safe”. The following article briefly introduces X-ray Screening. Security issues and corresponding security protection knowledge. I hope to help you better understand X-rays.