Radiating Systems, Multipole Fields and Radiation — John David Jackson
Physics — E&M · bethe-energy-loss-numerical
Problem
(a) Taking ℏ⟨ω⟩=12Z eV in the quantum-mechanical energy-loss formula, calculate the rate of energy loss (in MeV/cm) in air at NTP, aluminum, copper, and lead for a proton and a mu meson, each with kinetic energies of 10, 100, 1000 MeV.
(b) Convert your results to energy loss in units of MeV⋅(cm2/g) and compare the values obtained in different materials. Explain why all the energy losses in MeV-(cm2/g) are within a factor of 2 of each other, whereas the values in MeV/cm differ greatly.