(3) Figure 1-16 shows an atom of tungsten with only the K, L, and M shells
demonstrated. The binding energy of tungsten's K, L, and M shells are 69.5, 12, and 2
keV, respectively. In the top illustration (figure 1-16A), the impinging electron has
collided with and ejected a K electron from its shell and both electrons are seen leaving
the vicinity of the atom. In the bottom illustration (figure 1-16B), as the electron
transitions take place, two photons are emitted with energies of 57.5 keV (the difference
in binding energies of the K and L shells) and 10 keV (the difference in binding energies
of the Land M shells).
Figure 1-16. A Displacement of K electron.
B Replacement of displaced electron from shells L