Open AccessShack–Hartmann wavefront sensors based on 2D refractive lens arrays and super‐resolution multi‐contrast X‐ray imaging
Author(s) -
Mikhaylov Andrey,
Reich Stefan,
Zakharova Margarita,
Vlnieska Vitor,
Laptev Roman,
Plech Anton,
Kunka Danays
Publication year - 2020
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577520002830
Subject(s) - optics , wavefront , contrast (vision) , lens (geology) , resolution (logic) , superresolution , wavefront sensor , physics , phase contrast imaging , materials science , computer science , phase contrast microscopy , computer vision , artificial intelligence , image (mathematics)
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.