75.正子斷層掃描儀器元件中,主要是用下列何者來減少隨機偶合事件(random coincidence event)?
(A)Nal (Tl)
(B)septa
(C)BGO
(D)pinhole collimator
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統計: A(91), B(1510), C(83), D(124), E(0) #3065720
統計: A(91), B(1510), C(83), D(124), E(0) #3065720