title: Flow imaging by high speed transmission tomography.
abstract: Fourth generation medical X-ray scanners using a gantry with a rotating X-ray source and a fixed circular detector array as sensor head, are too slow for imaging of the process dynamics for instance in multiphase flows. To avoid inconsistent measurements and motion blurring, all measurements need to be carried out in a short time compared to the time constants of the process dynamics. Two different high speed tomographic imaging systems are presented here demonstrating that image rates of several thousand images per second is possible.
authors.affiliation: University of Bergen, Department of Physics and Technology, Bergen, Norway. geir.johansen@ift.uib.no
authors.forename: Geir Anton
authors.initials: GA
authors.lastname: Johansen
authors.forename: Uwe
authors.initials: U
authors.lastname: Hampel
authors.forename: Bjørn Tore
authors.initials: BT
authors.lastname: Hjertaker
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D011856:Radiographic Image Enhancement / Q000295:instrumentation*; D015203:Reproducibility of Results; D012212:Rheology / Q000295:instrumentation*; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*