62.以混凝土作為60Co核種發射光子之屏蔽,其什一值層(TVL)與半值層(HVL)厚度的關係約為:
(A)1TVL=5.0HVL
(B)1TVL=3.3HVL
(C)1HVL=3.3TVL
(D)1HVL=5.0TVL
答案:登入後查看
統計: A(12), B(1754), C(125), D(8), E(0) #2865110
統計: A(12), B(1754), C(125), D(8), E(0) #2865110