Physics Bucharest 2017

Electron interaction with matter

e - propagating through an absorbing medium interact with atoms by a variety of elastic or inelastic Coulomb force interactions classified as:

• Inelastic collisions with orbital e - (ionization loss). • Inelastic collisions with nuclei (radiative loss).

• Elastic collisions with orbital e - . • Elastic collisions with nuclei (nuclear coulomb scattering).