Scalable, large area compound array refractive lens for hard X-rays
Reich, Stefan 1; Santos Rolo, Tomy dos; Letzel, Alexander; Baumbach, Tilo 1,2; Plech, Anton
1
1 Institut für Photonenforschung und Synchrotronstrahlung (IPS), Karlsruher Institut für Technologie (KIT)
2 Laboratorium für Applikationen der Synchrotronstrahlung (LAS), Karlsruher Institut für Technologie (KIT)
11 Institut für Photonenforschung und Synchrotronstrahlung (IPS), Karlsruher Institut für Technologie (KIT)
2 Laboratorium für Applikationen der Synchrotronstrahlung (LAS), Karlsruher Institut für Technologie (KIT)
Abstract (englisch):
We demonstrate the fabrication of a 2D Compound Array Refractive Lens (CARL) for multicontrast X-ray imaging. The CARL consists of six stacked polyimide foils with each displaying a
2D array of lenses with a 65 lm pitch aiming for a sensitivity on sub-micrometer structures with a
(few-)micrometer resolution in sensing through phase and scattering contrast at multiple keV. The
parabolic lenses are formed by indents in the foils by a paraboloid needle. The ability for fast
single-exposure multi-contrast imaging is demonstrated by filming the kinetics of pulsed laser
ablation in liquid. The three contrast channels, absorption, differential phase, and scattering, are
imaged with a time resolution of 25 ls. By changing the sample-detector distance, it is possible to
distinguish between nanoparticles and microbubbles.
2D array of lenses with a 65 lm pitch aiming for a sensitivity on sub-micrometer structures with a
(few-)micrometer resolution in sensing through phase and scattering contrast at multiple keV. The
parabolic lenses are formed by indents in the foils by a paraboloid needle. The ability for fast
single-exposure multi-contrast imaging is demonstrated by filming the kinetics of pulsed laser
ablation in liquid. The three contrast channels, absorption, differential phase, and scattering, are
imaged with a time resolution of 25 ls. By changing the sample-detector distance, it is possible to
distinguish between nanoparticles and microbubbles.
| Zugehörige Institution(en) am KIT | Institut für Photonenforschung und Synchrotronstrahlung (IPS) |
| Publikationstyp | Zeitschriftenaufsatz |
| Publikationsjahr | 2018 |
| Sprache | Englisch |
| Identifikator | ISSN: 0003-6951, 1077-3118 urn:nbn:de:swb:90-820621 KITopen-ID: 1000082062 |
| HGF-Programm | 56.03.20 (POF III, LK 01) Nanoscience a.Material f.Inform.Technol. |
| Erschienen in | Applied physics letters |
| Verlag | American Institute of Physics (AIP) |
| Band | 112 |
| Heft | 15 |
| Seiten | 151903 |
| Vorab online veröffentlicht am | 09.04.2018 |
| Schlagwörter | laser ablation in liquids, multi contrast retrieval, scattering contrast imaging, X-ray lens |
| Nachgewiesen in | Scopus Dimensions Web of Science |
| Relationen in KITopen |