PREPARATIONS FOR THE EXPOSURE
8 Planmeca Intra X-ray Unit
User’s Manual
5.2 Selecting the cone
Select the cone to be used in the exposure. It is
recommended to use the optional long cone in order to
keep the absorbed dose to the patient as low as possible.
Long 30 cm (12”) cone
The long cone is attached into its position by pushing it
into the short cone and rotating it so that the red point on
the short cone and the black point on the long cone are in
line.
HAWE film holder
The rectangular collimator can be attached to the long
cone either before the film holder or after it. When the
collimator is attached before the film holder, the film
holder rotates when the collimator is rotated.
Attach/remove: red
points in line.
In position: red and
black points in line.
Film holder
Rectangular collimator
Film holder
Rectangular collimator