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Electron interaction with matter
•
Same mass of the atomic e- to which
they transfer energy in collisional
events
•
Multiple elastic collisions of a high-
energy e
-
(multiple scattering)
produce multiple small angle
deflections
•
The e
-
follows a zigzag path (it can
also be back-scattered) while it
continuously loses kinetic energy
through inelastic collisions with
atoms
•
Individual depositions are small and
an electron may deposit energy at
>10
4
locations