A PEPT algorithm for predefined positions of radioisotopes relative to the tracer particle
Ayodele E Odo1, Indresan Govender2, Andy Buffler3
1Department of Physics Federal University Oye-Ekiti, Nigeria; Department of Physics, University of Cape Town, Rondebosch, 7701, South Africa.
Abstract:
PEPT has been used to study the flow of material in a wide range of industrial systems. Usually, by invoking the ergodic assumption for the behaviour of the flow field, a single tracer, tracked over a sufficiently long period, can be used to characterize the velocity field of a steady state system. Starting with a known distribution of positron-emitting-radioisotope within the tracer particle, an optimised Positron Emission Particle Tracking (PEPT) algorithm for determining the centroid of the tracer is presented. A simple geometric constraint is iteratively employed to isolate only those lines of response passing through the tracer. The algorithmic approach for isolating the valid lines of response is presented within the context of PEPT experiments using stationary and moving tracers.
Related Concept Videos
Isotopes and Radioisotopes
An isotope containing...
Subatomic Particles
Trial and Error and Algorithm
Relative Risk
Position-effect Variegation
The Nucleosome Core Particle
The paradox
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their main responsibility is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. While on the other hand, they must allow polymerase enzymes to access DNA...

![Semi-quantitative Assessment Using [18F]FDG Tracer in Patients with Severe Brain Injury](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F58641.jpg&w=3840&q=50)
