Planmeca Proline XC Technical Manual page 77

PATIENT POSITIONING MECHANISM
Secondary collimator
Technical Manual
Leave the ball phantom tool in position and place one end of the alignment ruler in the primary
collimator and the other end in the secondary collimator.
Figure 44
Loosen the four screws that hold the patient position mechanism in place and adjust its posi-
tion to the left or right until the mechanism is centered.
Figure 45
Make sure that the y-line on the ball phantom is parallel to the line on the underside of the
alignment ruler. Note that the line on the ball phantom and the line on the alignment rule do
not have to coincide, but they must be parallel.
S T A R T
Figure 46
Tighten the screws, and remove the alignment pin.
Take another ball phantom picture to check the alignment again. Readjust if necessary.
Alignment ruler
P L A N M E C A N o . 5 0 9 7 1
E N D
Lines must not coincide
but they must be parallel
X - L I N E
Ball phantom
Chapter D - ADJUSTMENT & CALIBRATION
Tube head
Primary collimator
Alignment ruler
Screws
Planmeca Proline XC X-ray unit D-23