Which component of the dental X-ray machine directs and restricts the size of the X-ray beam?
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Correct answer: Collimator
The collimator limits the size and shape of the X-ray beam to reduce patient exposure. It ensures that only the area needed for imaging is exposed.
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More X-ray Equipment and Positioning questions
- What is the function of the position-indicating device (PID)?
- Which PID shape provides the greatest reduction in patient radiation dose?
- What effect does increasing the source-to-film distance (long PID) have on the image?
- The paralleling technique requires the receptor to be placed:
- Which error occurs if the PID is not centered over the receptor?
- What is the correct vertical angulation for bitewing radiographs?