IEAP - Institute of Experimental and Applied Physics

Partial tasks > Radiation Imaging in Material Science

Radiation Imaging in Material Science

Method “X Ray Dynamic Defectoscopy (XRDD)” uses Medipix device for the observation of time evolution of damage processes in a loaded specimen body. Even though the specimen is loaded monotonously and slowly, damaging can proceed discontinuously and relatively fast. Therefore high frame rate acquisition of X-ray images is crucial for real dynamic (time dependent) defectoscopy.

The method enables the observation of material density variations with micrometric accuracy. The test sample is illuminated by X rays during the loading process. Measured changes in transmission represent effective alterations in the sample thicknesses which are understood as weakening of the material due to damage volume fraction.

Sensitivity of the XRDD method depends on the ratio between incident and transmitted X ray beam intensity and on the fraction of scattered photons, the efficiency of the Medipix2 device at the X-ray energy used and the spectra of the X-ray tube.

Responsible person

Vavřík Daniel

IEAP

Co-workers

Jakůbek Martin	IEAP
Dammer Jiří	IEAP
Jakůbek Jan	IEAP
Jandejsek Ivan	IEAP

Grants:

Number	Name	Agency
LC06041	Research center "Fabrication, modification and characterization of materials by energetic radiation"	MŠMT
106/04/0567	Study of damage zone in high ductile materials in vicinity of crack tip by X-Ray Dynamic Defectoscopy method	GAČR
MSM 6840770040	Research Program 40: Usage of radionuclides and ionizing radiation.	MŠMT

Articles in Impacted Journals
(21)

Articles in Conference Proceedings
(17)

Thesis
(0)

Other publications
(3)

All
(41)

Text format

Name	Author	Scientific journal	Year
Non-destructive imaging of framents of historical beeswax seals using high-contrast X-ray micro-radiography and micro-tomography with large area photon-counting detector array	Karch J.; Bartl B.; Dudák J.; Žemlička J.; Krejčí F.	Micron (accepted)	2016
Visualization of delamination in composite materials utilizing advanced X-ray imaging techniques	Vavřík D.; Jakůbek J.; Jandejsek I.; Krejčí F.; Kumpová I.; Žemlička J.	Journal of Instrumentation 10 C04012	2015
High-contrast X-ray Radiography Using Hybrid Semiconductor Pixel Detectors with 1 mm thick Si sensor as a Tool for Monitoring Liquids in Natural Building	Krejčí F.; Slavíková M.; Žemlička J.; Jakůbek J.; Kotlík P.	Journal of Instrumentation 9 C07014	2014
Application of High-resolution X-Ray Radiography for Monitoring the Penetration Depth of Consolidants in Natural Building Stones	Krejčí F.; Jakůbek J.; Slavíková M.; Kotlík P.	Engineering Mechanics Conference proceedings, Svratka, Czech Rep., Paper #312, pp. 733–739	2012
Energy Sensitive X-Ray Imaging with Pixel Stack Detector	Žemlička J.; Jakůbek J.; Soukup P.	Engineering Mechanics Conference proceedings, Svratka, Czech Rep., Paper #310, pp. 721–727	2012
X-ray Radiography and Tomography for Monitoring the Penetration Depth of Consolidants in Opuka - the Building stone of Prague Monuments	Slavíková M.; Krejčí F.; Žemlička J.; Pech M.; Kotlík P.; Jakůbek J.	Journal of Cultural Heritage 13 (4), 357-364	2012
CT Artefact Reduction by Signal to Thickness Calibration Function Shaping	Vavřík D.	NIM A, Volume 633, Supplement 1, May 2011, Pages S152-S155	2011
Evaluation of strain field in microstructures using micro-CT and digital volume correlation	Jiroušek O.; Jandejsek I.; Vavřík D.	JINST 6 C01039 doi:10.1088/1748-0221/6/01/C01039	2011
Image processing for X-ray transmission radiography with 3D voxel detector	Jandejsek I.; Soukup P.; Jakůbek J.	JINST 6 C12061 doi:10.1088/1748-0221/6/12/C12061	2011
Metal Grain Structure Resolved with Table-top micro-Tomographic System	Vavřík D.; Soukup P.	JINST_007P_1011	2011
Neutron Analysis for Microvoids in an Adhesive Layer between High X-ray Attenuation Materials	Nguyen T.; Vavřík D.; Lehmann E.; Jeon I.	Appl. Phys. Express 4 (2011) 066401	2011
Real-time X-ray microradiographic imaging and image correlation for local strain mapping in single trabecula under mechanical load	Doktor T.; Jiroušek O.; Zlámal P.; Jandejsek I.	JINST 6 C11007 doi:10.1088/1748-0221/6/11/C11007	2011
Slow-neutron-induced charged-particle emission-channeling-measurements with Medipix detectors	Koester U.; Granja C.; Jakůbek J.; Uher J.; Vacík J.	Nucl. Instr. Methods A 633 (2011) S267-S269	2011
X-ray color imaging with 3D sensitive voxel detector	Soukup P.; Jakůbek J.; Jandejsek I.; Žemlička J.	JINST 6 C12014 doi:10.1088/1748-0221/6/12/C12014	2011
X-ray dynamic defectoscopy utilizing digital image correlation	Jandejsek I.; Nachtrab F.; Uhlmann N.; Vavřík D.	NIM A, Volume 633, Supplement 1, May 2011, Pages S185-S18	2011
Radiogram enhancement and linearization using the beam hardening correction method	Vavřík D.; Jakůbek J.	NIM A, Vol. 607, Issue 1, p. 212-214	2009
Material Analysis Using Characteristic Transmission Spectra	Vavřík D.; Jakůbek J.	IEEE NSS/MIC Conf. Proc. (2008), N30-320	2008
Method of Interpolated Ellipses Based on Image Correlation Technique	Vavřík D.; Jandejsek I.	Engineering Mechanics 2008, ISBN 978-80-87012-11-6, pp. 252-253	2008
Micro-Radiographic Measurement of Material Damage Evolution	Vavřík D.; Jakůbek J.	Conf. Proc. of New Methods of Damage and Failure Analysis of Structural Parts, ISBN 978-80-248-813-9, p. 331-337	2008
Micrometric scale measurement of material structure moving utilizing μ-radiographic technique	Vavřík D.; Jakůbek J.; Holý T.	NIM A, Vol. 591, Issue 1, p. 24-27	2008
Microradiographic Observation of the Strain Field in Vicinity of the Crack Tip	Vavřík D.; Jakůbek J.; Holý T.	17th European Conference on Fracture, ISBN 978-80-214-3692-3, pp. 76-83	2008
Microradiographic measurement of copper distribution in duralumin sample	Vavřík D.; Holý T.; Jakůbek J.; Jakůbek M.; Valach J.	Československý Časopis pro Fyziku, 1/2008, 58-61	2008
Microradiography in material science	Vavřík D.; Jakůbek J.; Jakůbek M.; Holý T.	Československý Časopis pro Fyziku, 1/2008, 53-57	2008
Microadiographic Measurement of Moving Material Structures	Vavřík D.; Holý T.; Jakůbek J.; Jakůbek M.	Proceedings of International Symposium on Technology for Next Generation Vehicle & Machine (2007)	2007
Microradiographic Observation of Grainy Structure of Al Alloy	Vavřík D.; Holý T.; Jakůbek J.; Jakůbek M.; Valach J.	IEEE NSS Conf. Proc. (2007) N24-432	2007
Phase contrast enhanced high resolution X-ray imaging and tomography of soft tissue	Jakůbek J.; Granja C.; Dammer J.; Tykva R.; Hanus R.; Uher J.; Vykydal Z.	Nucl. Instr. and Meth. A, Volume: 571, Issue: 1-2, Pages: 69-72, doi: 10.1016/j.nima.2006.10.031	2007
Radiography of Chaotically Moving Objects	Vavřík D.; Dammer J.; Holý T.; Jakůbek J.; Jakůbek M.; Jandejsek I.	AIP Vol. 958 (2007) 139-142	2007
3D Measurement of the Strain Field Surrounding Crack Tip	Vavřík D.; Bryscejn J.; Jakůbek J.; Valach J.	European Conference of Fracture, p. 323-328. ISBN 1-4020-4971-4	2006
Experimental system for high resolution X-ray transmission radiography	Jakůbek J.; Vavřík D.; Holý T.; Jakůbek M.; Vykydal Z.	Nucl. Instr. and Meth. A, Volume: 563, Issue 1, Pages: 278-281, doi: 10.1016/j.nima.2006.01.033	2006
Microradiographic Observation of Material Damage Structure	Vavřík D.; Holý T.; Jakůbek J.; Jakůbek M.; Vykydal Z.	2006 IEEE Nuclear Science Symposium Conference Record, Pages: 1081-1083, doi: 10.1109/NSSMIC.2006.356034	2006
Optical measurement of surface displacements in the vicinity of crack tip	Valach O.; Vavřík D.; Bryscejn J.; Jakůbek J.	Proc. of Engineering Mechanics 2006, p. 400-401. ISBN 80-86246-27-2	2006
Radiographic Observation of Damage Zone Evolution in High Ductile Specimen	Vavřík D.; Holý T.; Jakůbek J.; Jakůbek M.; Bryscejn J.; Tichy V.; Vykydal Z.; Valach J.	European Conference of Fracture, Pages: 323-328, ISBN 1-4020-4971-4	2006
Quality of X-ray transmission radiography based on single photon counting pixel device	Jakůbek J.; Vavřík D.; Pospíšil S.; Uher J.	NIM A Vol. 546, pages 113-117	2005
X-ray Micro Radiography Using Beam Hardening Correction	Vavřík D.; Holý T.; Jakůbek J.; Pospíšil S.; Vykydal Z.; Dammer J.	2005 IEEE Nuclear Science Symposium Conference Record, Pages: 2989-2992 , doi: 10.1109/NSSMIC.2005.1596959	2005
Crack Instability Analyzed by the Method of Interpolated Ellipses	Vavřík D.; Jakůbek J.; Zemánková J.	Proceedings, SEM X Costa Mesa, California USA	2004
Non-destructive Observation of Damage Processes in precracked specimens by X-Ray Dynamic Defectoscopy	Vavřík D.; Jakůbek J.; Pospíšil S.; Visschers J.; Zemánková J.	Annals of the Marie Curie fellowships-Vol.3, pp. 69-75, ISBN 92 92 894 7233¬2	2004
Tomography for XRDD	Jakůbek J.; Holý T.; Pospíšil S.; Vavřík D.	NIM A Vol. 531, pages 307-313	2004
Present status of X-ray dynamic defectoscopy	Vavřík D.; Jakůbek J.; Pospíšil S.; Visschers J.	IEEE NSS 2003 Conf. Proc.	2003
Resolution and stability tests of a Medipix-1 pixel detector for X-ray dynamic defectoscopy	Jakůbek J.; Pospíšil S.; Vavřík D.; Visschers J.	NIM A Vol. 509, pages 294-301	2003