Radiotracers are widely used for the measurement of the flow
rate of liquids, gases, and solids in many industrial systems.
Thus, in the enhancement of production efficiency and process optimisation, radioisotope-based technology continues
to play a rapidly growing role in various industries, such as
petrochemicals, oil, and gas, as well as wastewater treatment
plants . An investigation of many major industrial applications, including fluidised beds, sugar crystallisers, trickle
bed reactors, cement rotary kilns, wastewater treatment units,
and interwell communications in oil fields, can be performed
by injecting a radiotracer at the inlet of the system and
monitoring it at the outlet.The data output can be treated and
analysed to investigate the behaviour of the system.