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Registration Number

0221U101229, 0119U101722 , R & D reports

Title

Phase-variation increase of the informativeness of X-ray radiography with analytical accounting of the multiple scattering effects

Head

Lizunov Vyacheslav V., Доктор фізико-математичних наук

Registration Date

18-01-2021

Organization

Department for special training National academy of science of Ukraine at Kiev University

Description

 An approach that allows dynamical description of the radiation scattering during the formation of phase-contrast images of non-crystalline objects with non-smooth boundaries is proposed. This makes it possible to develop precise analytical description of the image formation processes for such objects when traditional approximations become inapplicable. Based on the developed dynamical theory of radiation scattering in non-crystalline objects with non-smooth boundaries, the intensity profiles from non-crystalline wires of different diameters were calculated under different experimental conditions in a triple-axis topographic imaging scheme. The analysis of the obtained results shows that we can control the shape of intensity profiles by choice of combinations of different experimental conditions, namely the use of different mutual orientations of the analyzer crystal and the beam, object and beam, different wavelength of radiation. As a result, different characteristics of a non-crystalline object of complex shape can be determined by combined processing of the intensity profiles taken under different experimental conditions.

Product Description

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Vasylyk Iaroslav V.
Vladimirova Tetiana P
Dmynrenko Oksana P
Zabolotnyi Ivan M.
Lizunov Vyacheslav V
Makarenko Liudmyla I.
Molodkin Vadym B
Pavlenko Olena L.