Positron emission particle tracking—Application and labelling techniques--颗粒学报PARTICUOLOGY

Parker, D. J., & Fan, X. (2008). Positron emission particle tracking—Application and labelling techniques. Selected papers from 1st UK-China Particle Technology Forum, 6(1), 16–23. https://doi.org/10.1016/j.cpart.2007.10.004

Positron emission particle tracking—Application and labelling techniques

David J. Parker, Xianfeng Fan ^*

School of Physics and Astronomy, the University of Birmingham, Edgbaston, Birmingham B15 2TT, UK

10.1016/j.cpart.2007.10.004

Volume 6, Issue 1, February 2008, Pages 16-23

Received 31 May 2007, Accepted 8 October 2007, Available online 7 March 2008.

E-mail: X.Fan@bham.ac.uk

Highlights

Abstract

The positron emission particle tracking (PEPT) technique has been widely used in science and engineering to obtain detailed information on the motion and flow fields of fluids or granular materials in multiphase systems, for example, fluids in rock cracks, chemical reactors and food processors; dynamic behaviour of granular materials in chemical reactors, granulators, mixers, dryers, rotating kilns and ball mills. The information obtained by the PEPT technique can be used to optimise the design, operational conditions for a wide range of industrial process systems, and to evaluate modelling work. The technique is based on tracking radioactively labelled particles (up to three particles) by detecting the pairs of back-to-back 511 keV γ-rays arising from annihilation of emitted positrons. It therefore involves a positron camera, location algorithms for calculating the tracer location and speed, and tracer labelling techniques. This paper will review the particle tracking technique from tracking algorithm, tracer labelling to their application.

Graphical abstract

Keywords

PEPT; Tracer; Algorithm; Tracking

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