What do airport body scanners see? A monitor shows a generic cookie-cutter-like outline of a person and highlights potential threats. It’s the same image no matter your gender, height, or body type, according to Farbstein. The scanner software recognizes metallic and non-metallic items hiding under clothing.
X-ray is an electromagnetic wave that has a strong penetrating ability, can penetrate certain thickness of steel. So often used for fluoroscopic imaging of the inside of an object. The X Ray is initially discovered by German physicist Roentgen in 1895. Well, after discovered in 1895, X-rays were first applied to medical imaging and diagnosis field. And in the following hundred years, they have been used in medicine, security inspection, non-destructive inspection, industrial testing or other fields. It has played a great role.