Speaker
Dr
Romain Coulon
(BIPM)
Summary
The 4πβ(TDCR)–γ coincidence method is a key technique for the primary standardization of radionuclides. It requires only three experimental quantities, the beta count rate from double or triple coincidences, the gamma count rate, and the coincidence count rate, and does not rely on nuclear decay data or efficiency models. Originally based on proportional counters, 4πβ–γ coincidence counting is now increasingly implemented with liquid scintillation systems, offering greater flexibility in sample preparation.
Authors
Dr
Haoran Liu
(NIM)
Dr
Romain Coulon
(BIPM)
