Technical Parameters

■ Collimation cylinder: the cylinder height of 150mm, the cylinder on the center of the surface with a Ф0.5mm steel ball (verticality indication), two Ф0.5mm steel beads (bead spacing of 20.0mm, the detection of SID with). The lower surface of the cylinder chassis set up two concentric circles, the center is located in the detection of the vertical center line of the cylinder, the two concentric circles of its diameter were Ф7.5mm and Ф15.0mm;

■ Detection plate: 250mm long and 200mm wide, with a surface of 180mm × 240mm light field / irradiation field consistency test scale lead line, the center of the detection plate open detection cylinder chassis and line to the card positioning holes.