TERMIUM Plus®

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BETA CONTAMINATION MONITOR [1 record]

Record 1 - external organization data 1994-11-18

English

Subject field(s)
  • Measuring Instruments (Engineering)
  • Radiation Protection
  • Protection of Life
  • Compartment - Canadian Nuclear Safety Commission
CONT

Since the specified limit is for residual contamination, the use of swipes as a method of measurement may also lead to underestimating the true level of contamination, although it is useful for determining the amount of material which is readily removable at that time. Because of the above consideration, the recommended method of determining compliance with the criteria is through the use of a beta contamination monitor, properly calibrated for measuring the beta particles from natural uranium. If this instrument is used assuming that its entire response is due to beta radiation, any error will be in the safe direction.

French

Domaine(s)
  • Instruments de mesure (Ingénierie)
  • Radioprotection
  • Sécurité des personnes
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

Comme la liste prescrite vise la contamination résiduelle, le recours aux frottis peut également faire sous-estimer le niveau de contamination véritable, bien que cette méthode de mesure est utile pour déterminer le montant de matériaux qu'il est possible d'enlever facilement au même moment. Vu cette considération, la méthode recommandée pour déterminer la conformité à ce critère est d'employer un moniteur de contamination bêta bien étalonné pour mesurer les particules bêta de l'uranium naturel. Si cet instrument est utilisé en supposant que toutes ses indications sont dues à des rayons bêta, il n'indiquera aucune erreur qui n'aille pas dans le sens de la prudence.

Spanish

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