شرکت سنجش پرتو مهر آرشیدا

This phantom embedded in PMMA. 7 step copper wedge, 4 low contrast elements. Markings to determine the size and position of the effective radiation field. Acceptance and constancy tests of conventional radiography, X-ray units, Collimation- beam alignment, Position and size of the effective radiation field, Dynamic range, Spatial resolution, Contras resolution, Image quality (distortion in fluoroscopy)