Question

question 35 / 40
source - to - image distance (sid) is defined as the distance from the:
light source to the patient
patient to the image receptor (ir)
anode focal spot to the patient
anode focal spot to the image receptor (ir)

Explanation:

In medical imaging, the source - to - image distance (SID) is the distance from the X - ray source (anode focal spot) to the image receptor (IR). It is an important parameter in X - ray imaging as it affects image quality and exposure.

Answer:

D. Anode focal spot to the image receptor (IR)