Ultrafast three-dimensional x-ray computed tomography
- Institute of Safety Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden (Germany)
- Institute of Nuclear Technology and Energy Systems, University of Stuttgart, 70569 Stuttgart (Germany)
X-ray computed tomography (CT) is a well established visualization technique in medicine and nondestructive testing. However, since CT scanning requires sampling of radiographic projections from different viewing angles, common CT systems with mechanically moving parts are too slow for dynamic imaging, for instance of multiphase flows or live animals. Here, we introduce an ultrafast three-dimensional x-ray CT method based on electron beam scanning, which achieves volume rates of 500 s{sup -1}. Primary experiments revealed the capability of this method to recover the structure of phase boundaries in gas-solid and gas-liquid two-phase flows, which undergo three-dimensional structural changes in the millisecond scale.
- OSTI ID:
- 21518257
- Journal Information:
- Applied Physics Letters, Vol. 98, Issue 3; Other Information: DOI: 10.1063/1.3534806; (c) 2011 American Institute of Physics; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANIMALS
CAT SCANNING
COMPUTERIZED TOMOGRAPHY
ELECTRON BEAMS
LIQUIDS
MULTIPHASE FLOW
NONDESTRUCTIVE TESTING
SAMPLING
SOLIDS
THREE-DIMENSIONAL CALCULATIONS
TWO-PHASE FLOW
X RADIATION
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DIAGNOSTIC TECHNIQUES
ELECTROMAGNETIC RADIATION
FLUID FLOW
FLUIDS
IONIZING RADIATIONS
LEPTON BEAMS
MATERIALS TESTING
PARTICLE BEAMS
RADIATIONS
TESTING
TOMOGRAPHY