quality factor

Definition

factor accounting for the different biological efficiencies of ionising radiation with different LET, and used to convert the absorbed dose to operational parameters (ambient dose equivalent, directional dose equivalent and personal dose equivalent)

Notes

  • NOTE 1 Quality factor, normally represented by Q, are used (rather than radiation or tissue weighting factors) to convert the absorbed dose to dose equivalent quantities described above (ambient dose equivalent, directional dose equivalent and personal dose equivalent). Its actual values are given by ICRP-60 [11] (see 11.2.3.2).
  • NOTE 2 Prior to ICRP-60 [11], quality factors were synonymous to radiation weighting factors.
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