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
Yang Z
(2014)
Study on solids translational and rotational motions in rotating cans
in LWT - Food Science and Technology
Griffiths W
(2010)
Tracking inclusions in aluminium alloy castings using positron emission particle tracking (PEPT)
in Materials Science and Technology
Burnard D
(2011)
The Application of Positron Emission Particle Tracking (PEPT) to Study Inclusions in the Casting Process
in Materials Science Forum
Saito Y
(2011)
Three-Dimensional Visualization of Powder Motion in a High Shear Mixer
in MATERIALS TRANSACTIONS
Leadbeater T
(2011)
Characterization of the latest Birmingham modular positron camera
in Measurement Science and Technology
Griffiths W
(2011)
The Use of Positron Emission Particle Tracking (PEPT) to Study the Movement of Inclusions in Low-Melting-Point Alloy Castings
in Metallurgical and Materials Transactions B
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
Windows-Yule C
(2014)
Influence of initial conditions on granular dynamics near the jamming transition
in New Journal of Physics
Bickell M
(2012)
A new line density tracking algorithm for PEPT and its application to multiple tracers
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Valdesueiro D
(2016)
Enhancing the activation of silicon carbide tracer particles for PEPT applications using gas-phase deposition of alumina at room temperature and atmospheric pressure
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Leadbeater T
(2011)
A modular positron camera for the study of industrial processes
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Habib M
(2013)
PEPT Investigation of Particle Separation in a Novel Vertically Vibrated Particle Separator
in Particulate Science and Technology
Leadbeater T
(2012)
Positron imaging systems for studying particulate, granular and multiphase flows
in Particuology
Chan C
(2010)
PEPT study of particle motion for different riser exit geometries
in Particuology
Mahmoudi S
(2012)
Solids flow diagram of a CFB riser using Geldart B-type powders
in Particuology
Windows-Yule C
(2017)
Inducing Axial Banding in Bidisperse-by-Density Granular Systems Using Noncylindrical Tumbler Geometries
in Physical Review Applied
Windows-Yule CR
(2014)
Effects of packing density on the segregative behaviors of granular systems.
in Physical review letters
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 CR
(2016)
Modifying self-assembly and species separation in three-dimensional systems of shape-anisotropic particles.
in Physical review. E
González S
(2015)
Forced axial segregation in axially inhomogeneous rotating systems.
in Physical review. E, Statistical, nonlinear, and soft matter physics
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
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
Windows-Yule CR
(2014)
Center of mass scaling in three-dimensional binary granular systems.
in Physical review. E, Statistical, nonlinear, and soft matter physics
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
Windows-Yule CR
(2015)
Maximizing energy transfer in vibrofluidized granular systems.
in Physical review. E, Statistical, nonlinear, and soft matter physics
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 |