Vis enkel innførsel

dc.contributor.authorChang, Yu-Fen
dc.contributor.authorBalakin, Boris
dc.date.accessioned2021-01-25T11:46:19Z
dc.date.available2021-01-25T11:46:19Z
dc.date.issued2020
dc.description.abstractTo study the flow of objects in opaque flow processes, the PEPT (positron emission particle tracking) technique may be utilized. The PEPT technique is based on the same principle of positron emission tomography (PET). Both techniques detect the characteristic back-to-back gamma pairs caused by positron-electron annihilation. PEPT allows tracking of β+ - activated objects (tracers) with high spatial (microns) and temporal resolutions (milliseconds). This makes the technique promising in a number of medical applications that require observation of fast transient phenomena e.g. heart and brain hemodynamics, the aerodynamics of respiratory tract etc. However, a majority of PEPT-tracers used nowadays are tailored for industrial applications and are based on solid particles of a micrometric size, which are hardly suitable for in-vivo tests. In this contribution, we propose new bio-compatible tracers. The tracers are based on frozen radioactive solutions rather than activated solids. We produced a number of millimetre-sized ice tracers dispersing the droplets of radioactive solution in oil at negative temperatures. In this preliminary study, we demonstrate how the tracers behave in a settling column and in an agitated vessel. The PEPT-tracks are presented together with a supplementary numerical analysis that was conducted in order to estimate the freezing time of the droplets.en_US
dc.identifier.citationChang Y.-F., Balakin BV. Novel Bio-compatible Tracers for Positron Emission Particle Tracking. Journal of Physics: Conference Series. 2020;1689en_US
dc.identifier.cristinIDFRIDAID 1859628
dc.identifier.doi10.1088/1742-6596/1689/1/012019
dc.identifier.issn1742-6588
dc.identifier.issn1742-6596
dc.identifier.urihttps://hdl.handle.net/10037/20464
dc.language.isoengen_US
dc.publisherIOS Pressen_US
dc.relation.journalJournal of Physics: Conference Series
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/PETROMAKS2/300286/Norway/Fundamental studies of plugging in multiphase flows with adhesive particles//en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2020 The Author(s)en_US
dc.subjectVDP::Mathematics and natural science: 400::Physics: 430en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430en_US
dc.titleNovel Bio-compatible Tracers for Positron Emission Particle Trackingen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel