Experimental and theoretical investigations of an X‐ray LLL interferometer with a wedge‐shaped mirror plate

An X‐ray LLL interferometer with a wedge‐shaped mirror plate is experimentally and theoretically investigated. Experimentally obtained interference patterns show that the Moiré fringes are superposed on Pendellösung fringes and the period of the Pendellösung fringes is not changed after passing the...

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Bibliographic Details
Published in:Acta crystallographica. Section A, Foundations and advances Foundations and advances, 2018-09, Vol.74 (5), p.595-599
Main Authors: Eyramjyan, Tigran H., Mnatsakanyan, Tamara S., Balyan, Minas K.
Format: Article
Language:English
Subjects:
Antiques
Interference fringes
LLL interferometers
Mirrors
Moiré fringes
Pendellösung fringes
superposition
Wedges
wedge‐shaped mirror plate
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Summary:An X‐ray LLL interferometer with a wedge‐shaped mirror plate is experimentally and theoretically investigated. Experimentally obtained interference patterns show that the Moiré fringes are superposed on Pendellösung fringes and the period of the Pendellösung fringes is not changed after passing the analyzer plate. An eikonal theory of interference‐fringe formation in an LLL interferometer with a wedge‐shaped mirror plate is developed, and provides predictions that coincide with experimentally obtained results. An X‐ray LLL interferometer with a wedge‐shaped mirror plate is experimentally and theoretically investigated.
ISSN:2053-2733
0108-7673
2053-2733
DOI:10.1107/S2053273318009889