Résumé

ISO/ASTM 51538 covers the preparation, handling, testing and procedure for using the ethanol-chlorobenzene dosimetry system to measure absorbed doses in materials irradiated by photons and electrons in terms of absorbed dose in water. The system consists of a dosimeter and appropriate analytical instrumentation. This practice describes the titration analysis as a standard readout procedure for the ECB dosimeter and applies only to gamma rays, X rays and high-energy electrons.

This practice applies provided the following are satis-fied:

the absorbed dose range is from 10 Gy to 2 MGy;

the absorbed dose rate does not exceed 106 Gy s -1;

for radionuclide gamma-ray sources, the initial photon energy is greater than 0,6 MeV;

for bremsstrahlung photons, the initial energy of the electrons used to produce the bremsstrahlung photons is equal to or greater than 2 MeV;

for electron beams, the initial electron energy is equal to or greater than 4 MeV.

the irradiation temperature of the dosimeter is within the range from - 40 °C to 80°C;

the effects of size and shape of the irradiation vessel on the response of the dosimeter can adequately be taken into account by performing the appropriate calculations using cavity theory.


Informations générales 

  • État actuel
     : Annulée
    Date de publication
     : 2002-03
  • Edition
     : 1
  • Comité technique
     : ISO/TC 85 Énergie nucléaire, technologies nucléaires, et radioprotection
  • ICS
     :
    17.240 Mesurage des rayonnements

Cycle de vie

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