6.20 MeV光子在Ge中,其回散射光子能量約為何?
(A)0.256 MeV
(B)0.511 MeV
(C)1.022 MeV
(D)2.044 MeV
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統計: A(168), B(85), C(102), D(21), E(0) #3492154
統計: A(168), B(85), C(102), D(21), E(0) #3492154