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Development of an Array of Compound Refractive Lenses for Sub-Pixel Resolution, Large Field of View, and Time-Saving in Scanning Hard X-ray Microscopy

Authors :
Talgat Mamyrbayev
Alexander Opolka
Alexey Ershov
Josephine Gutekunst
Pascal Meyer
Katsumasa Ikematsu
Atsushi Momose
Arndt Last
Source :
Applied Sciences, Vol 10, Iss 12, p 4132 (2020)
Publication Year :
2020
Publisher :
MDPI AG, 2020.

Abstract

A two-dimensional array of compound refractive lenses (2D array of CRLs) designed for hard X-ray imaging with a 3.5 mm2 large field of view is presented. The array of CRLs consists of 2D polymer biconcave parabolic 34 × 34 multi-lenses fabricated via deep X-ray lithography. The developed refractive multi-lens array was applied for sub-pixel resolution scanning transmission X–ray microscopy; a raster scan with only 55 × 55 steps provides a 3.5 megapixel image. The optical element was experimentally characterized at the Diamond Light Source at 34 keV. An array of point foci with a 55 µm period and an average size of ca. 2.1 µm × 3.6 µm was achieved. In comparison with the conventional scanning transmission microscopy using one CRL, sub-pixel resolution scanning transmission hard X-ray microscopy enables a large field of view and short scanning time while keeping the high spatial resolution.

Details

Language :
English
ISSN :
20763417
Volume :
10
Issue :
12
Database :
Directory of Open Access Journals
Journal :
Applied Sciences
Publication Type :
Academic Journal
Accession number :
edsdoj.8cb754382c5849df80f5849611dab9e2
Document Type :
article
Full Text :
https://doi.org/10.3390/app10124132