3H and 14C measurements of the irradiated graphite from the decommissioned VVR-S reactor in NIPNE Bucharest

Abstract

Accelerator Mass Spectrometry (AMS) and the Full Combustion (FC) method followed by isotope separation and liquid scintillation counting (LSC) have been applied for measuring the produced and accumulated ¹⁴C in the thermal column of the decommissioned VVR-S reactor in NIPNE Bucharest. The FC method has also been used to measure the tritium (³H) deposition in the reactor column. The two employed methods are complementary and during this study they were the subjects of a cross comparison exercise.