Open Access30‐Lens interferometer for high‐energy X‐rays
Author(s) -
Lyubomirskiy Mikhail,
Snigireva Irina,
Kohn Victor,
Kuznetsov Sergey,
Yunkin Vyacheslav,
Vaughan Gavin,
Snigirev Anatoly
Publication year - 2016
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/s160057751601153x
Subject(s) - optics , interferometry , interference (communication) , talbot effect , lens (geology) , beamline , physics , diffraction , planar , astronomical interferometer , resolution (logic) , beam (structure) , channel (broadcasting) , computer graphics (images) , computer science , electrical engineering , artificial intelligence , engineering
A novel high‐energy multi‐lens interferometer consisting of 30 arrays of planar compound refractive lenses is reported. Under coherent illumination each lens array creates a diffraction‐limited secondary source. Overlapping such coherent beams produces an interference pattern demonstrating strong longitudinal functional dependence. The proposed multi‐lens interferometer was tested experimentally at the 100 m‐long ID11 ESRF beamline in the X‐ray energy range from 30 to 65 keV. The interference pattern generated by the interferometer was recorded at fundamental and fractional Talbot distances. An effective source size (FWHM) of the order of 15 µm was determined from the first Talbot image, proving the concept that the multi‐lens interferometer can be used as a high‐resolution tool for beam diagnostics.