Application of liquid scintillators for activity measurements of metallic alloy samples labelled with radioactive isotopes

In the studies of metallurgical process kinetics the tracers with high activity are usually employed so that the radiation attenuation in a vessel wall could be neglected. Lower tracer activity results in a decrease of both the environment and studied material contamination probability as well as in the experiment cost reduction. Though in such cases the present day techniques of radiation intensity measurements provide neither sufficient accuracy nor spacial resolution. The paper suggests an approbated liquid scintillator technique that had not been employed in metallurgy because of difficulties connected with the sample immersing into the liquid scintillator. With the use of LS-1000 scintillation spectrometer the best conditions were identified that ensured productivity of some tracers activity measurements