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Development and Characterization of Two-Dimensional Gratings for Single-Shot X-ray Phase-Contrast Imaging

Zakharova, Margarita ORCID iD icon 1; Vlnieska, Vitor 1; Fornasier, Heike 1; Börner, Martin 1; Rolo, Tomy dos Santos 2; Mohr, Jürgen 1; Kunka, Danays 1
1 Institut für Mikrostrukturtechnik (IMT), Karlsruher Institut für Technologie (KIT)
2 Institut für Photonenforschung und Synchrotronstrahlung (IPS), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Single-shot grating-based phase-contrast imaging techniques offer additional contrast modalities based on the refraction and scattering of X-rays in a robust and versatile configuration. The utilization of a single optical element is possible in such methods, allowing the shortening of the acquisition time and increasing flux efficiency. One of the ways to upgrade single-shot imaging techniques is to utilize customized optical components, such as two-dimensional (2D) X-ray gratings. In this contribution, we present the achievements in the development of 2D gratings with UV lithography and gold electroplating. Absorption gratings represented by periodic free-standing gold pillars with lateral structure sizes from 5 µm to 25 µm and heights from 5 µm to 28 µm have shown a high degree of periodicity and defect-free patterns. Grating performance was tested in a radiographic setup using a self-developed quality assessment algorithm based on the intensity distribution histograms. The algorithm allows the final user to estimate the suitability of a specific grating to be used in a particular setup.


Verlagsausgabe §
DOI: 10.5445/IR/1000081467
Veröffentlicht am 29.03.2018
Originalveröffentlichung
DOI: 10.3390/app8030468
Scopus
Zitationen: 10
Web of Science
Zitationen: 8
Dimensions
Zitationen: 10
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Institut für Photonenforschung und Synchrotronstrahlung (IPS)
Universität Karlsruhe (TH) – Interfakultative Einrichtungen (Interfakultative Einrichtungen)
Karlsruhe School of Optics & Photonics (KSOP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 03.2018
Sprache Englisch
Identifikator ISSN: 2076-3417
urn:nbn:de:swb:90-814671
KITopen-ID: 1000081467
HGF-Programm 43.23.02 (POF III, LK 01) X-Ray Optics
Erschienen in Applied Sciences
Verlag MDPI
Band 8
Heft 3
Seiten 468
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Schlagwörter 2D gratings; UV lithography; grating-based X-ray imaging; single-shot phase-contrast imaging; 2015-014-008253 EBL XRL
Nachgewiesen in Scopus
Web of Science
Dimensions
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