Enviar artigo por via de e-mail X-ray diffraction tomography: image filtering by singular value decomposition and 1D smoothing Whittaker-Eilers methods
- Autores: Chukhovskii F.N.1, Konarev P.V.1, Volkov V.V.1
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Afiliações:
- Shubnikov Institute of Crystallography of the Kurchatov Complex Crystallography and Photonics of the NRC “Kurchatov Institute”
- Edição: Volume 70, Nº 4 (2025)
- Páginas: 545-551
- Seção: ДИФРАКЦИЯ И РАССЕЯНИЕ ИОНИЗИРУЮЩИХ ИЗЛУЧЕНИЙ
- URL: https://journals.rcsi.science/0023-4761/article/view/306249
- DOI: https://doi.org/10.7868/S3034551025040016
- EDN: https://elibrary.ru/jevjoa
- ID: 306249
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Resumo
Digital processing of the 2D noisy X-ray diffraction images (2D-XDI) of a single point defect in Si(111) crystal, registered at the level of dispersion of statistical Gaussian noise of the detector using filtering methods such as singular value decomposition and 1D-line-by-line smoothing of test 2D-XDIs, is carried out. The efficiency of digital filtering of 2D-XDI is evaluated and analyzed by means of control parameter FOM (figure-of-merit) value of reconstruction of the displacement field function of a point defect of Coulomb type fh(r–r0), (h – diffraction vector, r0 – radius-vector of the defect position in the sample). It is shown that the filtering technique using the singular value decomposition of 2D-XDI works significantly better than the 1D linear-by-line smoothing method of 2D-XDI, which, apparently, in relation to our problem requires further research on its improvement.
Sobre autores
F. Chukhovskii
Shubnikov Institute of Crystallography of the Kurchatov Complex Crystallography and Photonics of the NRC “Kurchatov Institute”
Email: f_chukhov@yahoo.ca
Rússia, Moscow, 119333
P. Konarev
Shubnikov Institute of Crystallography of the Kurchatov Complex Crystallography and Photonics of the NRC “Kurchatov Institute”
Email: f_chukhov@yahoo.ca
Rússia, Moscow, 119333
V. Volkov
Shubnikov Institute of Crystallography of the Kurchatov Complex Crystallography and Photonics of the NRC “Kurchatov Institute”
Autor responsável pela correspondência
Email: f_chukhov@yahoo.ca
Rússia, Moscow, 119333
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Nota
In the print version, the article was published under the DOI: 10.31857/S0023476125040016