What is the specification of the Energy Verification Plate for Photons?
The Energy Verification Plate is made of RW3, a white polystyrene with 2% titanium oxide (TiO2), and nominal density of 1.045 g/cm3.
The thickness of the plate for photons is 40 mm.
In the Energy Verification Plate there are 8 cylinders made of Pb (lead). Four with a thickness of 5 mm and four with a thickness of 10 mm, indicated as 1 and 2 on the plate.