Platform Grant for the University of Birmingham Positron Imaging Centre
Lead Research Organisation:
University of Birmingham
Department Name: School of Physics and Astronomy
Abstract
The Positron Imaging Centre uses radioactive tracers to study flows of interest to engineers, in a variant of the medical imaging technique of positron emission tomography (PET). Most of our studies use the alternative technique of positron emission particle tracking (PEPT), developed at Birmingham, in which a single radioactive particle is tracked at high speed inside a flow system. The short-lived radioisotopes used for this work are produced using the Birmingham cyclotron, and various novel techniques have been developed for labelling individual particles (as small as 100 micrometres diameter) with suitable radioactivity. Standard medical PET scanners have been adapted to perform these studies, and in addition to various in-house measurement systems a transportable detector system has recently been developed allowing PEPT measurements to be carried out on large scale industrial plant. The Positron Imaging Centre operates as a national resource where academic and industrial groups can study the systems of specific interest to them, and welcomes collaborators from many institutions around the world and from a diverse range of academic disciplines. Applications range from fundamental studies of simple flow situations involving granular materials or liquids to measurements on the actual equipment used in industry for processing foodstuffs, pharmaceuticals, etc. An important role for these studies is testing the accuracy of computer codes used for predicting complex flows. In future PET and PEPT will be increasingly used in conjunction with other complementary measurement techniques to reveal more complex properties of the behaviour of systems. While individual research projects are funded from appropriate sources, our Platform Grant is used to foster collaborations, to retain key staff and to develop the infrastructure (in particular the tracer labelling techniques) in order that we can apply our unique techniques to the widest possible range of problems.
Organisations
Publications
Marigo M
(2013)
Application of Positron Emission Particle Tracking (PEPT) to validate a Discrete Element Method (DEM) model of granular flow and mixing in the Turbula mixer.
in International journal of pharmaceutics
Windows-Yule CR
(2013)
Boltzmann statistics in a three-dimensional vibrofluidized granular bed: idealizing the experimental system.
in Physical review. E, Statistical, nonlinear, and soft matter physics
Habib M
(2013)
PEPT Investigation of Particle Separation in a Novel Vertically Vibrated Particle Separator
in Particulate Science and Technology
Rafiee M
(2013)
Development of positron emission particle tracking for studying laminar mixing in Kenics static mixer
in Chemical Engineering Research and Design
Windows-Yule CR
(2013)
Thermal convection and temperature inhomogeneity in a vibrofluidized granular bed: the influence of sidewall dissipation.
in Physical review letters
Windows-Yule C
(2014)
The role of rotational inertia in the dynamics of vibrofluidised granular gases
in EPL (Europhysics Letters)
Windows-Yule C
(2014)
Self-diffusion, local clustering and global segregation in binary granular systems: The role of system geometry
in Powder Technology
Cole K
(2014)
A surface coating method to modify tracers for positron emission particle tracking (PEPT) measurements of froth flotation
in Powder Technology
Windows-Yule CR
(2014)
Low-frequency oscillations and convective phenomena in a density-inverted vibrofluidized granular system.
in Physical review. E, Statistical, nonlinear, and soft matter physics
Yang Z
(2014)
Study on solids translational and rotational motions in rotating cans
in LWT - Food Science and Technology
Windows-Yule C
(2014)
Inelasticity-induced segregation: Why it matters, when it matters
in EPL (Europhysics Letters)
Windows-Yule C
(2014)
Influence of initial conditions on granular dynamics near the jamming transition
in New Journal of Physics
Windows-Yule CR
(2014)
Center of mass scaling in three-dimensional binary granular systems.
in Physical review. E, Statistical, nonlinear, and soft matter physics
Denissenko P
(2014)
Positron emission tracking of individual particles in particle-laden rimming flow
in Physics of Fluids
Windows-Yule CR
(2014)
Effects of packing density on the segregative behaviors of granular systems.
in Physical review letters
Windows-Yule CR
(2014)
Energy non-equipartition in strongly convective granular systems.
in The European physical journal. E, Soft matter
Windows-Yule CR
(2014)
Influence of thermal convection on density segregation in a vibrated binary granular system.
in Physical review. E, Statistical, nonlinear, and soft matter physics
Kinugasa T
(2015)
Three-dimensional dynamic imaging of sand particles under wheel via gamma-ray camera system
in Journal of Terramechanics
Windows-Yule Kit
(2015)
Density-Driven Segregation in Binary and Ternary Granular Systems
in KONA POWDER AND PARTICLE JOURNAL
González S
(2015)
Forced axial segregation in axially inhomogeneous rotating systems.
in Physical review. E, Statistical, nonlinear, and soft matter physics
Windows-Yule C
(2015)
Resonance effects on the dynamics of dense granular beds: achieving optimal energy transfer in vibrated granular systems
in New Journal of Physics
Yu S
(2015)
The use of positron emission particle tracking (PEPT) to study milling of roll-compacted microcystalline cellulose ribbons
in Powder Technology
Windows-Yule CR
(2015)
Competition between geometrically induced and density-driven segregation mechanisms in vibrofluidized granular systems.
in Physical review. E, Statistical, nonlinear, and soft matter physics
Pore M
(2015)
A comparison of magnetic resonance, X-ray and positron emission particle tracking measurements of a single jet of gas entering a bed of particles
in Chemical Engineering Science
Rosato A
(2015)
Tapped granular column dynamics: simulations, experiments and modeling
in Computational Particle Mechanics
Description | This grant enabled the Positron Imaging Centre to further develop capabilities for PEPT and diversify the portfolio of applications, including into new fields such as liquid metal casting. |
Exploitation Route | The value of PEPT has been appreciated by several groups worldwide, who are developing their own capabilities. |
Sectors | Agriculture, Food and Drink,Pharmaceuticals and Medical Biotechnology |