If the intensity of radiation at 36 inches SID is 600 mR,what is the intensity if the distance is increased to 60 inches SID?

Name: If the intensity of radiation at 36 inches SID is 600 mR,what is the intensity if the distance is increased to 60 inches SID?
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Quizplus · Accepted Answer

Before actually calculating the answer,it is important to think through that increasing the distance results in decreased intensity.Using the inverse square formula,I₁/I₂ = (D₂)²/(D₁)²,600/X = 60²/ 36².

If the Intensity of Radiation at 36 Inches SID Is