Standardization of Tritium Water by TDCR Method

Abstract

The triple-to-double coincidence ratio (TDCR) method of liquid scintillation counting is an absolute measurement method of radioactivity. The formulation of the TDCR method and the established TDCR liquid scintillation counter are presented in this paper. The NIST standard reference material (SRM) of tritium water was measured to verify the performance of the TDCR liquid scintillation counter.