Check the PSP with a homogeneous test
image
Scratches on the surface of the PSP may be visi-
ble in the X-ray image and may impair the ability
to diagnose the X-ray images. If scratches are
visible in the image that may impair the diagnos-
tics, the PSP must be discarded.
Fig. 4: PSP with scratches
❯
Place the PSP on a level surface at a distance
of approximately 30 cm from the X-ray tube.
Doing this, make sure that the active side of
the PSP faces the X-ray tube.
❯
Set the exposure time and setting values on
the X-ray unit for a molar x-ray image (see "8.4
X-ray unit settings").
❯
Scan the PSP with the PSP scanner at high
resolution.
❯
Check the image for homogeneity.
No scratches visible in the image: PSP can still
be used.
Scratch is visible in the image: discard the PSP.
Check X-ray system
To check the X-ray system, take an X-ray image
with the 2D X-ray test phantom (refer to "3.3
Optional items"). This can be used to check the
image produced with the X-ray system for homo-
geneity, resolution, contrast and artifacts.
❯
Take an X-ray image with the 2D X-ray test
phantom. Comply with the instructions for use
of the test body.
❯
Read the PSP.
❯
Check the image for homogeneity, resolution,
contrast and artifacts.
❯
If errors are visible in the image, contact a ser-
vice technician.
Usage
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