How does kVp and mAs affect aborbed dose? what happen if alter FFD or collimation?
Answers:
kVp affects penetration and mAs is the degree of x-ray, so if you don't have ample penetration, you are going to own MORE absorbed dose because smaller amount xray is actually getting through the body. If you increase FFD, this also give you less permeation, giving more absorbed dose if you do not increase your kVp, and if you fall collimation, you will have more dissolve which will give you more obsessed dose. SO, in effect you enjoy
increase kVp=decrease absorbed dose
increase FFD=increase engrossed dose
increase collimation=decrease in immersed dose. Hope this helps!
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