The European Union has addressed these questions decisively: It bans anybody scanners that use X-ray technology. That ban complies with the legislation in several European nations that says individuals should not be exposed to X-rays aside from medical causes. Backscatter machines about 30 p.c of the installations — ship low-power X-rays to bounce off a passenger’s physique. X-rays or Millimeter Waves? Millimeter-wave (mmw) scanners emit power extra akin to microwaves. With that in thought, we’re going to check and contrast the two applied sciences throughout a wide range of parameters, beginning with the type of power they emit. Both varieties of scanners give off energy within the type of electromagnetic radiation, which exists in nature as waves of energy made from each electric and magnetic field.