8.40 keV X-ray最容易與下列何者發生K緣吸收(K-edge absorption)作用?(Eb為K-shell electron binding energy)
(A)barium(Eb=37 keV)
(B)molybdenum(Eb=19 keV)
(C)calcium(Eb=4 keV)
(D)aluminum(Eb=1.6 keV)
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統計: A(2011), B(151), C(35), D(137), E(0) #1529606
統計: A(2011), B(151), C(35), D(137), E(0) #1529606