TY - JOUR
T1 - Shack-Hartmann wavefront sensors based on 2D refractive lens arrays and super-resolution multi-contrast X-ray imaging
AU - Mikhaylov, Andrey
AU - Reich, Stefan
AU - Zakharova, Margarita
AU - Vlnieska, Vitor
AU - Laptev, Roman
AU - Plech, Anton
AU - Kunka, Danays
PY - 2020/5/1
Y1 - 2020/5/1
N2 - Different approaches of 2D lens arrays as Shack-Hartmann sensors for hard X-rays are compared. For the first time, a combination of Shack-Hartmann sensors for hard X-rays (SHSX) with a super-resolution imaging approach to perform multi-contrast imaging is demonstrated. A diamond lens is employed as a well known test object. The interleaving approach has great potential to overcome the 2D lens array limitation given by the two-photon polymerization lithography. Finally, the radiation damage induced by continuous exposure of an SHSX prototype with a white beam was studied showing a good performance of several hours. The shape modification and influence in the final image quality are presented.
AB - Different approaches of 2D lens arrays as Shack-Hartmann sensors for hard X-rays are compared. For the first time, a combination of Shack-Hartmann sensors for hard X-rays (SHSX) with a super-resolution imaging approach to perform multi-contrast imaging is demonstrated. A diamond lens is employed as a well known test object. The interleaving approach has great potential to overcome the 2D lens array limitation given by the two-photon polymerization lithography. Finally, the radiation damage induced by continuous exposure of an SHSX prototype with a white beam was studied showing a good performance of several hours. The shape modification and influence in the final image quality are presented.
KW - Interleaving measurement
KW - Phase-contrast imaging
KW - Polymer refractive lenses
KW - Sample-shift multi-contrast imaging
KW - Shack-Hartmann sensor for hard X-rays
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U2 - 10.1107/S1600577520002830
DO - 10.1107/S1600577520002830
M3 - Article
C2 - 32381782
AN - SCOPUS:85084398921
VL - 27
SP - 788
EP - 795
JO - Journal of Synchrotron Radiation
JF - Journal of Synchrotron Radiation
SN - 0909-0495
ER -