Portable X-ray flaw detector ( with rippled ceramic x-ray tube ) can be used in non destructive testing ( NDT )of thin iron plate, aluminum material, rubber and so on, with which you will get images of high quality and clarity. The rippled ceramic x-ray tube in the portable directional X-ray flaw detector has the advantages of high voltage, large power, small size, high stability and long service life. So the portable directional X-ray flaw detector has the features of small size, light in weight , long service life and good shockproof ability.