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IEVref:395-01-34ID:
Language:enStatus: Standard
Term: energy imparted
Synonym1:
Synonym2:
Synonym3:
Symbol: ε
Definition: energy transmitted by ionizing radiation to the matter in a given volume such that:

ε = R1 – R2 + ∑Q

where

  • R1 is the radiant energy incident on the volume, i.e. the sum of the energies, excluding rest energies, of all those directly and indirectly ionizing particles which enter the volume,
  • R2 is the radiant energy emerging from the volume, i.e. the sum of the energies, excluding rest energies, of all those directly and indirectly ionizing particles which leave the volume, and
  • Q is the sum of all changes of the rest mass energy of atomic nuclei and elementary particles in any nuclear transformations which occur in the volume; a positive sign is used when the change is a decrease and a negative sign when the change is an increase

Note 1 to entry: The energy imparted is a stochastic quantity, identical to the integral absorbed dose in that volume, and expressed in joules (J).

Note 2 to entry: This entry was numbered 393-14-60 in IEC 60050-393:2003.


Publication date:2014-03
Source:IEC 60050-881:1983, 881-12-43, modified; ISO 921:1997, definition 405, modified
Replaces:
Internal notes:2017-08-29: Cleaned up <p> tags. LMO
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