問題詳情
70.下列有關186Re與188Re的敘述何者正確？
(A)186Re與188Re均進行β-蛻變，但186Re還進行電子捕獲（electron capture）
(B)186Re的半衰期小於188Re的半衰期
(C)186Re的曝露率常數（exposure rate constant）Γ小於188Re的曝露率常數 Γ
(D)186Re的γ能譜較188Re的γ能譜複雜
(A)186Re與188Re均進行β-蛻變，但186Re還進行電子捕獲（electron capture）
(B)186Re的半衰期小於188Re的半衰期
(C)186Re的曝露率常數（exposure rate constant）Γ小於188Re的曝露率常數 Γ
(D)186Re的γ能譜較188Re的γ能譜複雜
參考答案
答案：A
難度：困難0.309859
統計：A(22),B(18),C(15),D(3),E(0)
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