High-resolution and sensitivity bi-directional x-ray phase contrast imaging using 2D Talbot array illuminators
| Autor: | Christian Petrich, Pierre Thibault, Alex Gustschin, Jörg U. Hammel, Madleen Busse, Julia Herzen, Mirko Riedel, Wolfgang Noichl, Wolfgang Gottwald, Sheila E. Francis, Julian Moosmann, Felix Beckmann, Kirsten Taphorn |
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| Přispěvatelé: | Gustschin, Alex, Riedel, Mirko, Taphorn, Kirsten, Petrich, Christian, Gottwald, Wolfgang, Noichl, Wolfgang, Busse, Madleen, Francis, Sheila E., Beckmann, Felix, Hammel, J??rg U., Moosmann, Julian, Thibault, Pierre, Herzen, Julia |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
differential X-ray phase contrast business.industry High resolution 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics X-ray Optics X-ray phase contrast 2D Talbot array X-Ray Phase-Contrast Imaging 0103 physical sciences Sensitivity (control systems) ddc:620 0210 nano-technology business |
| Zdroj: | Gustschin, A.; Riedel, M.; Taphorn, K.; Petrich, C.; Gottwald, W.; Noichl, W.; Busse, M.; Francis, S.; Beckmann, F.; Hammel, J.; Moosmann, J.; Thibault, P.; Herzen, J.: High-resolution and sensitivity bi-directional x-ray phase contrast imaging using 2D Talbot array illuminators. In: Optica. Vol. 8 (2021) 12, 1588-1595. (DOI: /10.1364/optica.441004) Optica 8(12), 1588-1595 (2021). doi:10.1364/OPTICA.441004 Optica |
| ISSN: | 2334-2536 |
| DOI: | 10.1364/optica.441004) |
| Popis: | Optica 8(12), 1588 - 1595 (2021). doi:10.1364/OPTICA.441004 Two-dimensional (2D) Talbot array illuminators (TAIs) were designed, fabricated, and evaluated for high-resolution high-contrast x-ray phase imaging of soft tissue at 10���20 keV. The TAIs create intensity modulations with a high compression ratio on the micrometer scale at short propagation distances. Their performance was compared with various other wavefront markers in terms of period, visibility, flux efficiency, and flexibility to be adapted for limited beam coherence and detector resolution. Differential x-ray phase contrast and dark-field imaging were demonstrated with a one-dimensional, linear phase stepping approach yielding 2D phase sensitivity using unified modulated pattern analysis (UMPA) for phase retrieval. The method was employed for x-ray phase computed tomography reaching a resolution of 3 ��m on an unstained murine artery. It opens new possibilities for three-dimensional, non-destructive, and quantitative imaging of soft matter such as virtual histology. The phase modulators can also be used for various other x-ray applications such as dynamic phase imaging, super-resolution structured illumination microscopy, or wavefront sensing. Published by OSA, Washington, DC |
| Databáze: | OpenAIRE |
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