The two major factors that affect the amount of scatter radiation produced and exiting the patient are

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The two major factors that affect the amount of scatter radiation produced and exiting the patient are the volume of tissue irradiated and the kilovoltage peak (kVp). The volume of tissue irradiated influences the amount of scatter because a larger volume provides more opportunity for the x-ray beam to interact with matter and produce scatter. The kVp affects the penetrability of the x-rays, with higher kVp settings resulting in more penetration and thus more potential for scatter as the x-rays interact with tissues.

The Two Major Factors That Affect the Amount of Scatter