X RAY intensity 2

• The number of x-rays in the useful beam is the radiation intensity.
• Most general purpose x-ray tubes, when operated at approximately 70 kVp, produce x-ray intensities of approximately 50 Gy/mAs at a 100-cm source-to-image receptor distance (SID).
• The factors that affect x-ray intensity affect x-ray exposure of the image receptor similarly.