How does the receptor move in panoramic imaging?

• A. The receptor moves in relation to the collimator.
• B. The receptor remains completely stationary.
• C. The receptor moves with the patient.
• D. The receptor moves independently of the collimator.

Answer: (A)

In panoramic imaging, the X-ray beam and the receptor are part of a rotating system that moves around the patient. The receptor isn’t fixed; it shifts position in step with the rotating collimator and tube so the curved shadow of the dental arches stays aligned with the receptor as the beam sweeps. This coordinated movement keeps the image within the focal trough and produces a single continuous radiograph. The patient should stay still to avoid blur, and the receptor’s motion is not simply with the patient nor completely independent of the collimator.