NORMI 13 (T42023)
Operating Manual - Description of the Test Object
D703.131.00/03 en 13
Operating Manual
1 Description of the Test Object
The overall dimensions of the structure plate are
300 mm x 300 mm x 10 mm, and the plate is com-
posed of the following components:
– PMMA plate, 8 mm thick
– grid plate, 0.5 mm thick
– copper plate, 1 mm thick
– front foil, 0.5 mm thick
Absorber
The structure plate is used in combination with an
absorber:
– aluminum absorber, thickness of 25 mm or
– PMMA absorber, thickness of 30 mm
HINT
The standard DIN 6868-13 specifies a
requirement for a 1-mm copper plate for the
PMMA absorber. The PTW structure plate
already includes this copper plate.
– additional, optional copper plate with a thick-
ness of 1.3 mm for measurements at 100 kV
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