Advanced X-ray radiography and tomography in several engineering applications

0365111 - ÚTAM 2012 RIV NL eng J - Journal Article
Vavřík, Daniel - Dammer, J. - Jakůbek, J. - Jeon, I. - Jiroušek, Ondřej - Kroupa, M. - Zlámal, Petr
Advanced X-ray radiography and tomography in several engineering applications.
Nuclear Instruments & Methods in Physics Research Section A. Roč. 633, č. 1 (2011), s. 152-155. ISSN 0168-9002. E-ISSN 1872-9576.
[International workshop on radiation imaging detectors /11./. Praha, 26.06.2009-02.07.2009]
R&D Projects: GA ČR(CZ) GA103/09/2101
Grant - others:GA MŠk(CZ) LC06041
Program: LC
Institutional research plan: CEZ:AV0Z20710524
Keywords : digital radiography * computed tomography * X-ray crack imaging
Subject RIV: JL - Materials Fatigue, Friction Mechanics
Impact factor: 1.207, year: 2011
http://dx.doi.org/10.1016/j.nima.2010.06.152

New developments in the fields of X-ray detectors, X-ray micro/nano sources and data processing bring new possibilities for engineering practice in many applications. Nowadays it is possible to observe an object, which was difficult to image before due to limitations such as low contrast, low dynamic range, low attenuation and/or small structural dimensions. A number of compelling problems in different applications are summarized. Digital radiograms in this work are acquired using micro- and nano-focus X-ray tubes together with semiconductor digital pixelated detectors. A beam hardening correction was done for relevant radiograms and an iterative OSEM (ordered subsets) method was applied for CT reconstructions.
Permanent Link: http://hdl.handle.net/11104/0200432