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Proceedings Paper

A comparison of customized Hartmann and newly introduced inverted Hartmann masks for single-shot phase-contrast X-ray imaging
Author(s): M. Zakharova; S. Reich; A. Mikhaylov; V. Vlnieska; Marcus Zuber; Sabine Engelhardt; T. Baumbach; D. Kunka
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Paper Abstract

In this contribution, we compare the performance of Hartmann masks and inverted Hartmann masks of different periods for phase-sensitive X-ray imaging. The Hartmann masks were gold meshes and the inverted Hartmann masks were arrays of gold pillars, both manufactured by UV lithography and gold electroforming on low-absorbing graphite substrates. We asses masks performance by comparing the visibility and homogeneity of the periodic patterns. Manufactured customized masks exhibit clear periodic patterns and demonstrate visibility values from 30 % to 50 % depending on the setup configuration. Finally, we show the phase contrast imaging with an angular resolution of 1.5 μm and demonstrate that images obtained with an inverted Hartmann mask have superior quality.

Paper Details

Date Published: 26 April 2019
PDF: 7 pages
Proc. SPIE 11032, EUV and X-ray Optics: Synergy between Laboratory and Space VI, 110320U (26 April 2019); doi: 10.1117/12.2520723
Show Author Affiliations
M. Zakharova, Karlsruhe Institute of Technology (Germany)
S. Reich, Karlsruhe Institute of Technology (Germany)
A. Mikhaylov, Karlsruhe Institute of Technology (Germany)
V. Vlnieska, Karlsruhe Institute of Technology (Germany)
Marcus Zuber, Karlsruhe Institute of Technology (Germany)
Sabine Engelhardt, Karlsruhe Institute of Technology (Germany)
Heidelberg Univ. (Germany)
T. Baumbach, Karlsruhe Institute of Technology (Germany)
D. Kunka, Karlsruhe Institute of Technology (Germany)

Published in SPIE Proceedings Vol. 11032:
EUV and X-ray Optics: Synergy between Laboratory and Space VI
René Hudec; Ladislav Pina, Editor(s)

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