Positron Emission Tomography (PET) for flow measurement

Arthur E. Ruggles, Bi Yao Zhang, Spero M. Peters

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Positron Emission Tomography (PET) produces a three dimensional spatial distribution of positron-electron annihilations within an image volume. Various positron emitters are available for use in aqueous, organic and liquid metal flows. Preliminary experiments at the University of Tennessee at Knoxville (UTK) injected small flows of PET tracer into a bulk water flow in a four rod bundle. The trajectory and diffusion of the tracer in the bulk flow were then mapped using a PET scanner. A spatial resolution of 1.4 mm is achieved with current preclinical Micro-PET imaging equipment resulting in 200 MB 3D activity fields. A time resolved 3-D spatial activity profile was also measured. The PET imaging method is especially well suited to complex geometries where traditional optical methods such as LDV and PIV are difficult to apply. PET methods are uniquely useful for imaging in opaque fluids, opaque pressure boundaries, and multiphase studies. Several commercial and shareware Computational Fluid Dynamics (CFD) codes are currently used for science and engineering analysis and design. These codes produce detailed three dimensional flow predictions. The models produced by these codes are often difficult to validate. The development of this experimental technique offers a modality for the comparison of CFD outcomes with experimental data. Developed data sets from PET can be used in verification and validation exercises of simulation outcomes.

Original languageEnglish
Title of host publicationAdvanced Measurement and Test
Pages1316-1321
Number of pages6
DOIs
StatePublished - 2011
Externally publishedYes
Event2011 2nd International Conference on Advanced Measurement and Test, AMT 2011 - Nanchang, China
Duration: Jun 24 2011Jun 26 2011

Publication series

NameAdvanced Materials Research
Volume301-303
ISSN (Print)1022-6680

Conference

Conference2011 2nd International Conference on Advanced Measurement and Test, AMT 2011
Country/TerritoryChina
CityNanchang
Period06/24/1106/26/11

Keywords

  • CFD
  • Flow measurement
  • PET
  • Positron emission tomography
  • Validation

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