What component of the dental x-ray machine best limits the size of the x-ray beam to the approximate size of the image receptor?
A. A pointed cone
B. An open round cylinder
C. A rectangular PID
D. A slit collimator
Answer:C
What component of the dental x-ray machine best limits the size of the x-ray beam to the approximate size of the image receptor?
A. A pointed cone B. An open round cylinder C. A rectangular PID D. A slit collimator
Explanation: A) A rectangular position indicating device (PID) limits the size of the x-ray beam that strikes the patient to the actual size of the image receptor.