The double angle X-ray machine is seen everywhere in our lives. The subway station, the high speed railway station, the airport and so on have a double angle X-ray machine. Then how do the security inspectors identify the contraband using the double angle X-ray machine image? Then the SHENFEI will explain it to you.

　　Answer: when the disproportionate contraband items are passed through the X - ray system, a disproportionate shape and color can be found on the monitor. The key to the discovery of prohibited items is the ability of the security inspectors to master these features.

　　Then, what's the first thing to be banned? Contraband is the usual "three products", which are flammable, explosive, corrosive, cutting tools and firearms. In the meantime, flammable and explosive products include gasoline, alcohol, detonators, detonators, explosives, butane gas, cosmetics, fresh air agents, etc.

　　Corrosive substances include sulfuric acid, hydrochloric acid, nitric acid, aqua regia, hydrogen peroxide and strong oxidizing data. Control tools and guns include spring knives, jump knives, triangular edged knives, choppers, hand prick, pistols, etc. These prohibited items are hidden in luggage and have their shape and color characteristics under the X light image.

　　Identification of contraband items by double angle X-ray machine images

　　Kitchen knife, dagger, screwdriver, scissors and other metal materials are showing the color of orchid. The firecrackers and the explosion show the green color. The center of the explosion is black powder, so it appears green in the middle, and the paper tube of the explosion is organic material, so it appears orange. The toy pistol and the screwdriver's evidence and the scissors' handle are the yellow green color of the plastic. The need to note is that the butane gas tank and the mineral water are orange, while the air fresh is green. The identification of lighter is mainly based on the shape and color of Pao Ding. There is a layer of metal around the Pao Ding, but it is blue. The fuselage of the lighter is orange.

　　The security inspectors who use the dual view X ray machine determine whether there is any contraband in the package.