Boone, Matthieu

De Muynck, Amélie

De Schryver, Thomas

Dhaene, Jelle

Dierick, Manuel

Heyndrickx, Marjolein

Masschaele, Bert

Pauwels, Elin

Van Hoorebeke, Luc

Van Loo, Denis

English

Ghent University Academic Bibliography

2nd UGCT seminar 10 September 2015  Latest technical developments at UGCT: an overview Matthieu N. Boone1,2, Bert Masschaele1,2,3, Manuel Dierick1,2, Denis Van Loo1,2,3,  Thomas De Schryver1,2, Elin Pauwels1,2, Jelle Dhaene1,2, Amélie De Muynck1,2, Marjolein Heyndrickx1,2  and Luc Van Hoorebeke1,2 1Radiation Physics research group, Department of Physics and Astronomy, Faculty of Sciences, Ghent University, Proeftuinstraat 86-N12, 9000 Gent, Belgium  [email: Matthieu.Boone@UGent.be] 2Centre for X-ray Tomography, Institute for Nuclear Sciences (INW), Proeftuinstraat 86-N12, 9000 Gent, Belgium  [email: UGCT@UGent.be] 3X-ray Engineering bvba, De Pintelaan 111, 9000 Gent, Belgium [email: info@xre.be] Keywords: Micro-CT, tomographic reconstruction, acquisition hardware, X-ray physics ABSTRACT Within the Ghent University Centre for X-ray Tomography (UGCT), the Radiation Physics (RP) research group of the Department of Physics and Astronomy is continuously working to improve the technique of laboratory-based high-resolution X-ray tomography or µCT. This is achieved by performing research covering the complete workflow of µCT: physics and instrumentation, data acquisition, data reconstruction and data analysis. Since the previous UGCT seminar in 2010, many new developments have been made. On the hardware side, several new µCT systems have been developed. The high-energy setup HECTOR has become fully operational (Masschaele et al., 2013) and can now be considered to be the UGCT "workhorse". The innovative rotating-gantry EMCT system can now perform continuous scans at a speed of 12 seconds per scan (Dierick et al., 2014; Bultreys et al., in press) while the original dual-head system, constructed in 2006, has been thoroughly upgraded. Finally, in close collaboration with the X-ray Microspectroscopy and Imaging research group (XMI, led by Prof. L. Vincze) the unique HERAKLES system which combines X-ray tomography with 3D X-ray fluorescence imaging has been developed. HERAKLES is in its final stage of construction and has already demonstrated its potential (see poster of B Laforce). Additionally, an innovative hyperspectral detector has been used for the first time in transmission imaging (Boone et al., 2014), and several add-on modules have been installed.  On the software side, based on the X-ray physics a new tool has been developed for the simulation of realistic X-ray projections serving the optimization of CT scanning and dual-energy methods (Dhaene et al., 2015), several new methods for iterative reconstruction have been implemented (Brabant et al., 2012; Brabant et al., 2014), and X-ray phase contrast has been further investigated (Boone et al., 2012). During this presentation, we will elaborate on these developments, which are the result of the research performed at the Radiation Physics group, and show some applied results.     2nd UGCT seminar 10 September 2015   Figure 1: the MEDUSA high resolution scanner at UGCT REFERENCES Boone, M. N., Devulder, W., Dierick, M., Brabant, L., Pauwels, E. and Van Hoorebeke, L. (2012). "Comparison of two single-image phase-retrieval algorithms for in-line x-ray phase-contrast imaging." Journal of the Optical Society of America A 29(12): 2667-2672.  Boone, M. N., Garrevoet, J., Tack, P., Scharf, O., Cormode, D. P., Van Loo, D., Pauwels, E., Dierick, M., Vincze, L. and Van Hoorebeke, L. (2014). "High spectral and spatial resolution X-ray transmission radiography and tomography using a Color X-ray Camera." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 735: 644-648.  Bultreys, T., Boone, M. A. et al. (in press) "Fast laboratory-based micro-computed tomography for pore-scale research: illustrative experiments and perspectives on the future." Advances in Water Resources.  Brabant, L., Pauwels, E., Dierick, M., Van Loo, D., Boone, M. A. and Van Hoorebeke, L. (2012). "A novel beam hardening correction method requiring no prior knowledge, incorporated in an iterative reconstruction algorithm" NDT & E International 51: 68-73.  Brabant, L., Dierick, M., Pauwels, E., Boone, M. N. and Van Hoorebeke, L. (2014). "EDART, a discrete algebraic reconstructing technique for experimental data obtained with high resolution computed tomography." Journal of X-Ray Science and Technology 22(1): 47-61.  Dhaene, J., Pauwels, E., De Schryver, T., De Muynck, A., Dierick, M. and Van Hoorebeke, L. (2015). "A realistic projection simulator for laboratory based X-ray micro-CT." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 342: 170-178.  Dierick, M., Van Loo, D. et al. (2014). "Recent micro-CT scanner developments at UGCT." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 324: 35-40.  Masschaele, B., Dierick, M. et al. (2013). "HECTOR: A 240kV micro-CT setup optimized for research." Journal of Physics: Conference Series 463(1): 012012. 

Latest technical developments at UGCT: an overview

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Latest technical developments at UGCT: an overview

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