Industrial positron-based imaging: Principles and applications
作者： D.J. Parker , M.R. Hawkesworth , C.J. Broadbent , P. Fowles , T.D. Fryer
DOI: 10.1016/0168-9002(94)90805-2
关键词: Physics 、 Nuclear magnetic resonance 、 Positron emission tomography 、 Optics 、 Speed (motion) 、 Positron camera 、 Axial diffusion 、 Positron emission 、 Tracking (particle physics) 、 Positron 、 Automotive engine
摘要: Abstract Positron Emission Tomography (PET) has great potential as a non-invasive flow imaging technique in engineering, since 511 keV gamma-rays can penetrate considerable thickness of (e.g.) steel. The RAL/Birmingham multiwire positron camera was constructed 1984, with the initial goal observing lubricant distribution operating aero-engines, automotive engines and gearboxes, been used variety industrial fields. major limitation for conventional tomographic PET studies is its restricted logging rate, which limits frequency images be acquired. Tracking single small positron-emitting tracer particle provides more powerful means high speed motion using such camera. Following brief review use capabilities Birmingham camera, this paper describes recent developments Particle (PEPT) technique, compares results obtainable by PEPT using, an example, study axial diffusion particles rolling cylinder.
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