Options
2014
Conference Paper
Titel
Evaluation of influencing factors in dual energy X-ray imaging
Titel Supplements
Abstract
Abstract
Dual Energy X-ray imaging has proven to be a worthwhile method to acquire quantitative material characteristics from radiographic images and computed tomography (CT) scans. In contrast to conventional X-ray imaging it provides quantitative information (e.g. the areal density) about the scanned material. Fraunhofer EZRT’s Dual Energy technique provides the areal density of two given materials, which are necessary a-priori information. Although this technique is performed on radioscopic data it can also be used to process Dual Energy computed tomography (CT) data. For Dual Energy CT measurements, there is a wide variety of influences that may reduce the precision of the calculated results (areal density of the previously chosen materials), as for example, the scattering of X-rays (detector internal scattering and object scattering) or the inherent filtering of the X-ray source. To evaluate the influence of these factors on the precision of the responding areal density measurement tasks are presented and discussed.
Author(s)