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Dynamical effects in Bragg coherent x-ray diffraction imaging of finite crystalsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 16 октября 2018 г.
- Авторы: Shabalin A.G., Yefanov O.M., Nosik V.L., Bushuev V.A., Vartanyants I.A.
- Журнал: Physical Review B
- Том: 96
- Номер: 6
- Год издания: 2017
- Издательство: American Physical Society
- Местоположение издательства: United States
- Первая страница: 064111(15)
- DOI: 10.1103/PhysRevB.96.064111
- Аннотация: We present simulations of Bragg coherent x-ray diffractive imaging (CXDI) data from finite crystals in the frame of the dynamical theory of x-ray diffraction. The developed approach is based on a numerical solution of modified Takagi-Taupin equations and can be applied for modeling of a broad range of x-ray diffraction experiments with finite three-dimensional crystals of arbitrary shape also in the presence of strain. We performed simulations for nanocrystals of a cubic and hemispherical shape of different sizes and provided a detailed analysis of artifacts in the Bragg CXDI reconstructions introduced by the dynamical diffraction. Based on our theoretical analysis we developed an analytical procedure to treat effects of refraction and absorption in the reconstruction. Our results elucidate limitations for the kinematical approach in the Bragg CXDI and suggest a natural criterion to distinguish between kinematical and dynamical cases in coherent x-ray diffraction on a finite crystal.
- Добавил в систему: Бушуев Владимир Алексеевич