directional dose equivalent


dose at a point equivalent to the one produced by the corresponding expanded radiation field in the ICRU sphere at a specific depth d on a radius on a specified direction


  • NOTE 1 It is normally expressed as H'(d, W), where d is the specific depth used in its definition, in mm, and W is the direction.
  • NOTE 2 H'(d,W), is relevant to weakly-penetrating radiation where a reference depth of 0,07 mm is usually used and the quantity denoted H'(0,07, W).
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