問題詳情
四、在迴旋加速器中,用電流通量為 1μA/cm2 的質子射束撞擊 1 g 的 111Cd 達 10 小時之久。試計算所產生的 111In 放射活性為何?已知 111In 之半衰期為 2.8 天,且此(p,n)反應之截面為 1 barn;一個質子的帶電量為 1.6×10-19C。(8 分)
參考答案
答案:B
難度:適中0.600533
統計:A(7),B(451),C(61),D(96),E(0)
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