Used for acceptance testing and stability testing of dental digital radiology equipment.
The upper plate contains different sizes of central ring grooves for placing different sizes of collimating cylinders and absorbers.
In the middle is the resolution testing module and a 0.5mm aluminum plate for measuring contrast (with drilling holes of different depths)
Resolution range: 1.6-3.0 Lp/mm tilt arrangement.
There is a gap left on the substrate for placing the ionization chamber.
