22.已知TAR(d,r)代表深度(d公分)其射束照野(r × r cm2)的組織空氣比(TAR),已知4 MV的X光對水的 TAR(8,10)等於0.802,而TAR(8,0)等於0.670,則散射空氣比SAR(8,10)為何?
(A)0.132
(B)0.165
(C)0.197
(D)1.197
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統計: A(1215), B(107), C(139), D(516), E(0) #2866920
統計: A(1215), B(107), C(139), D(516), E(0) #2866920