photoelectric effect

effect,

n the result of an action.

effect, heel (anode heel effect),

n the variation of intensity over the cross section of a useful radiographic beam, caused by the angle at which radiographs emerge from beneath the surface of the focal spot, which causes a differential attenuation of photons composing the useful beam.

effect of external radiation on bone,

n See osteoradionecrosis.

effect of function on bone,

n See law, Wolff's.

effect, photoelectric,

n the process by which radiographic images are produced when the energy of an incident photon is absorbed as the result of bound electron ejection.

effect, wedging,

n an effect produced by food impaction that forces the teeth apart.

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photoelectric effect

Radiology That fractional ↓ in beam intensity of ionizing radiation due to photoelectric effect in a medium through which it passes. See Attenuation coefficient.