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11 Cards in this Set

  • Front
  • Back
breaking radiation breaks because changes direction when interact with nucleus
• projectile electron (negative charge) comes under influence of the nucleus (electric Coulomb force)
• projectile electron changes direction, varibly
• change in direction causes bremsstrahlung x-ray photon production (conservation of momentum)
bremstrlahlung radiation
what constitutes 85% of x-ray photons?
type of radiaton results when projectile eelctrol collides with a k-shell electron of the target material
characteristic and bramstrulung
interaction between
electron and x-ray
Compton: (scatter) and
photoelectric effect: are interactions of what and what
x-rays and matter
____ (scatter) comes into patient and is misdirected
______ is when it is good and is completely absorbed
Compton: (scatter) photoelectric effect:
leave x-ray tube in all directions
equation of heat units:
kVp by mAs (single phase only, x 1.4 for HF)
cause by absorption and attenuation of x
x-rays coming off bump into the anode
because some of x-ray is absorbed into anode itself:
this means the beam towards patient will be weak or less intense (anode ) because some x-rays were absorbed.
Cathode: more intense
Intensity of the beam is non-uniform in the long axis of the tube
anode heel effect
how to decrease anode heel effect
use longer focal fim distances
Ripple effect: