In the alpha decay of 230Th there is a gamma-ray transition of 67.73 keV. Given the electron binding energies in the table, what is the energy (in keV) of the L3 conversion electrons?
Give your answer to 4 significant figures.
Electron Shell Binding energy (keV)
K 103.90
L1 19.22
L2 18.80
L3 15.44