Development of Cross-Correlation Based Position Reconstruction Algorithm for Radioactive Particle Tracking Technique

摘要

In a Pebble Bed Reactor (PBR), heat source i.e. nuclear fuel is in the form of a spherical pebble and moves in the core under the influence of gravity. Helium gas moves through the voids formed in between the pebbles and removes fission heat generated from the fuel. Hence an investigation of pebbles dynamics and structural characterization of pebble beds is of paramount importance from reactor neutronics and coolant thermal hydraulics point of view[l]. Not only a comprehensive experimental study of pebbles dynamics will significantly advance current understanding of the PBR technology but also provide a valuable information and benchmark data from reactor safety assessment and performance evaluation point of view.