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Electron interaction in matter: Inelastic collisions
Characteristic X Rays
•
The incoming electron knocks out
an inner shell atomic electron
•
An electron from a higher shell fills
the vacancy and the energy
difference is emitted as an X Ray of
an energy characteristic for the
transition
Bremsstrahlung
•
Bremsst ahlung X rays result from
Coulomb interactions between the
incident e
-
and the nuclei of the
targ t material.
•
Th incident e
-
is defl cted and
deceler ted and loses part of its
kinetic en rgy in he form of photons
(radi tive loss).
•
Photons with energy ranging from
0 to the incident e
-
energy are
generated
X-ray production