REALISATION OF RADIONUCLIDES ACTIVITY UNIT USING THE LIQUID SCINTILLATION COUNTING (LSC)

Abstract

Registration of the effects of interaction of the radiation emitted after radioactive decay enables determination of activity of a given material expressed in becquerels (Bq). Measurements in a frame of international comparisons of 14C activity using the triple-to-double coincidence ratio (TDCR) method and of 177Lu activity using the 4p(LS)-g coincidence and anticoincidence method, where the liquid scintillation technique (LSC) was used, were described. Specificity of short-lived radionuclides activity determination was discussed.

Keywords

• radionuclide activity
• liquid scintillators
• LSC technique