Title

Particle Tracking Velocimetry Using Fast X-Ray Phase-Contrast Imaging

Abstract

The authors demonstrate the use of millisecond x-ray phase-contrast imaging for velocity measurement of particle-laden flows in an optically opaque vessel. Taking advantage of particle size polydispersity, this single-particle tracking approach is extremely effective on flows with tracer particles exhibiting a great size distribution ranging from 1µm to hundreds of micrometers, which is impossible for visible-light-based techniques. Furthermore, a tomographic reconstruction was applied to yield the three-dimensional flowvelocity field and its particle size dependence with unprecedented sensitivity.

Department(s)

Mining and Nuclear Engineering

Keywords and Phrases

X-Ray Imaging; Flow Visualization; Velocimetry; Particle Velocity; X-Ray Optics

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2007 American Institute of Physics (AIP), All rights reserved.

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