Q10: A narrow beam of 106 ?ℎ????? ?-1 in
normally incident on 8-mm iron sheet. The beam consists of equal
numbers of 400-KeV photons and 1-MeV photons. mass atten coeffs of
Fe: (400KeV = 0.092, 1MeV = 0.06) energy abs coeffs: (400KeV =
0.03, 1MeV = 0.027), use density 7.86 g/cm^3
(a) Calculate the number of ?ℎ????? ?-1 of each
energy that are transmitted without interaction through the
sheet.
(b) How much energy is removed from the narrow beam per...