Radiology Physics Board Review

Physics
Weiss to Loudill

Sample Data

Front how do we maximize the K-edge effect?
Back image with kVp b/w 65 and 90 - remember that avg energy is 1/3 to 1/2 of max energy --> this provides maximum effect for K edge of barium (37 keV) and iodine (33 keV)
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Front why is plastic used as a shield in nucs for beta emitters?
Back this minimizes bremstrahlung production (lead would make bremstrahlung much worse) 
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Front what is spatial resolution of FDP limited by?
Back detector element size (2.5 -3.0 line pair/mm)
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