Abstract
Positron emission particle tracking (PEPT) is a novel experimental technique for non-invasive inspection of industrial fluid/particle flows. The method is based on the dynamic positioning of a positron-emitting, flowing object (particle) performed through the sensing of annihilation events and subsequent numerical treatment to determine the particle position. The present paper shows an integrated overview of PEPT studies which were carried out using a new PET scanner in the Bergen University Hospital to study multiphase flows in different geometric configurations.
Highlights
Positron emission particle tracking (PEPT) is a modification of the well-known positron emission tomography (PET) method widely employed in nuclear medicine
The classical PET technique is primarily focused on the registration of annihilation events from spatial regions where a β+-emitter is distributed and the subsequent image reconstruction, while PEPT defines a point source of β+ performing cross-triangulation directly from a sensing log of individual ”lines of response” (LORs)
The present paper provides a detailed overview of the PEPT experiments performed at the PET center of Haukeland University Hospital (Norway) to explore pneumatic conveying lines and hydrocyclones at the conditions similar to industrial
Summary
Positron emission particle tracking (PEPT) is a modification of the well-known positron emission tomography (PET) method widely employed in nuclear medicine. Both techniques combine sequential detection of back-to-back gamma-rays resulting from a positron/electron annihilation event with advanced mathematical post-processing of a sensing log. A typical PET system requires the positioning of a positron-emitting isotope within a set of gamma-detectors, e.g. scintillators, distributed in space in a way allowing detection of gamma-rays from a single annihilation event. The classical PET technique is primarily focused on the registration of annihilation events from spatial regions where a β+-emitter is distributed and the subsequent image reconstruction, while PEPT defines a point source of β+ performing cross-triangulation directly from a sensing log of individual ”lines of response” (LORs). Due to relatively high energy of gamma-rays (511 keV), they are able to penetrate a wide range of industrial surfaces opaque to visible light, PEPT is suitable for non-invasive control of industrial equipment where
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
