Since alpha or beta radiation is not very penetrating, its detection requires a sample preparation phase. For liquids, this can be evaporation in the case of global alpha/beta counting, or dilution in the case of liquid scintillation counting.

ATRON Metrology implements the appropriate sampling and measurement resources to achieve low detection limits:

• <0.4 Bq/cm² in beta and <0.04 Bq/cm² in alpha on 100 cm² smears
• <0.1 Bq/L in beta and <0.01 Bq/L in alpha on liquid samples