Linear attenuation coefficient

Linear attenuation coefficent (µ) is the fraction of attenuated incident photons per unit thickness of a material. It represents the fraction of photons removed from a monoenergetic beam per unit thickness of material. Its complement is the transmitted portion of the beam. It is expressed numerically in units of 1/cm.

The mass attenuation coefficient is a normalisation of the linear attenuation coefficient per unit density of a material producing a value that is constant for a given element or compound 1.

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Article information

rID: 31918
Section: Physics
Tags: physics, stubs
Synonyms or Alternate Spellings:
  • LET

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