IEVref:881-04-53ID:
Language:enStatus: Standard
Term: air kerma-rate constant
Synonym1:
Synonym2:
Synonym3:
Symbol: Γδ
Definition: for a radionuclide emitting photons, the quotient of l 2 K ˙ δ MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiaadYgadaahaaWcbeqaaiaaikdaaaGcceWGlbGbaiaadaWgaaWcbaGaeqiTdqgabeaaaaa@39DC@ by A, where Kδ is the air kerma-rate due to photons of energy greater than δ, at a distance 1 from a point source of this nuclide having an activity A

Γ δ = l 2 K ˙ δ A MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiabfo5ahnaaBaaaleaacqaH0oazaeqaaOGaeyypa0ZaaSaaaeaacaWGSbWaaWbaaSqabeaacaaIYaaaaOGabm4sayaacaWaaSbaaSqaaiabes7aKbqabaaakeaacaWGbbaaaaaa@3F05@

NOTE – The SI unit of air kerma-rate constant is m2 • J • kg−1.

When the special names gray (Gy) and becquerel (Bq) are used m2 • J • kg−1 becomes m2 • Gy • Bq−1 • s−1.

When the earlier special units of activity (the curie) and kerma (the rad) are used

1rad  m 2 Ci 1 s 1 = 10 12 3,7 m 2 J kg 1 ( exactly )


Publication date:1983-01
Source
Replaces:
Internal notes:
CO remarks:
TC/SC remarks:
VT remarks:
Domain1:
Domain2:
Domain3:
Domain4:
Domain5: