ILW & high activity waste


Waste is generally categorised as ILW because it has high activity above the beta-gamma activity threshold or it has higher alpha activity (or both), as detailed below:

  • Beta-gamma activity: > 12,000 Bq/g  (324 nCi/g), or
  • Alpha activity:             > 4,000 Bq/g (108 nCi/g)

ILW and higher activity waste is measured using a range of technologies and techniques depending on the density, homogeneity and the amount of alpha activity present.