… relationship between γ-ray intensity and the distance between the particle and the detector.
The … For the reactor experiments the tracer particle with an activity of 27.5 MBq is required to …

… bottom of the reactor due to … particle tracking (RPT) is the most accurate and lowest cost
velocimetry technique [33, 35, 36] applicable in the study of industrial-scale multiphase systems…

… In addition, a number of important multiphase reactors consist of particles having different
properties (size, shape, and density), such as binary solids spouted bed [8,30,31] and binary …

… particle tracking radiography for further study of multiphase … X-ray detectors have better spatial
resolution than γ-ray detectors, … for the large reactor and intermediate for the small reactor, …

… (ie, reactor vessel) of the investigated multiphase system while collecting … However, the RPT
experimental detection system is … ϕ : The probability that a γ-ray will emerge from the reactor …

… radioactive sources, such as γ-ray computed tomography. This … techniques to characterize
multiphase flows in fluidized beds … particle tracking (PEPT) or magnetic particle tracking (MPT). …

… multiphase flow systems.16, 17 In this technique, the motion of a single γ-ray emitting radioactive
particle is tracked … the position reconstruction in the 3-D domain was measured in terms …

… by the γ-ray densitometry … γ-ray source ( 137 Cs) and collimated scintillation detectors
are placed 180 apart in the same plane. Initially, the count intensity recorded on the detector is …

… Radioactive particle tracking (RPT) is an established technique to determine the flow pattern
and turbulent parameters inside a contactor/reactor. (32−42) In this technique, the motion of …

… Since there exists a large amount of related techniques on tomography of multiphase flows,
… of line detectors are an established technique [11], [18]. Radiation-based particle tracking …