Select the factor(s) from the list on the right which can be used to measure:

VII.C.33.   Intensity of an ultrasound beam.

Ans.:   K     pp. 21, 127 - 129*

    A.   roentgen
    B.   rad
    C.   rem
    D.   gray
    E.   sievert
    F.   coulomb/kg of air
    G.   curie
    H.   becquerel
    I.   roentgen-cm2
    J.   joules
    K.   watts
    L.   watts/cm2
    M.   heat units

    *Reference:  Physical Principles of Medical Imaging, 2nd Edition. Next Question: