VATECH EzRay Air Portable Manuel D'utilisation page 30

4. Operation
Positioning Instructions
Paralleling technique: The phosphor plate or sensor is placed in a holder that is used
to align the phosphor plate or sensor parallel to the long axis of the teeth.
Bisected angle technique: The patient holds the phosphor plate or sensor in place
with his/her finger. The X-ray beam is directed perpendicularly towards an imaginary
line, which bisects the angle between the phosphor plate or sensor plane and the long
axis of the tooth.
Position the tube head to the patient using the accepted standard positioning
procedures.
24
1. Phosphor plate or Sensor
2. Long axis of the tooth
1. Phosphor plate or Sensor
2. Long axis of the tooth
EzRay Air Portable (Model: VEX-P300) User Manual