Виявлення структурних особливостей об’єктів методом рентґенівського фазового контрасту
Phase contrast is widely used everywhere, where the visualization of the internal structure of objects using X-rays is required. In this paper, a new approach based on the Fresnel–Kirchhoff theory has been proposed to model the X-ray phase-contrast image making use of the freepropagation method. A s...
Збережено в:
| Дата: | 2024 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English Ukrainian |
| Опубліковано: |
Publishing house "Academperiodika"
2024
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| Теми: | |
| Онлайн доступ: | https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2023320 |
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| Назва журналу: | Ukrainian Journal of Physics |
Репозитарії
Ukrainian Journal of Physics| Резюме: | Phase contrast is widely used everywhere, where the visualization of the internal structure of objects using X-rays is required. In this paper, a new approach based on the Fresnel–Kirchhoff theory has been proposed to model the X-ray phase-contrast image making use of the freepropagation method. A simple calculation model has been developed that allows the intensity variation on three-dimensional models of macroscopic objects with arbitrary shapes and, accordingly, the observation conditions for obtaining a contrast image in the case of known detector system characteristics and X-ray source intensity to be determined. The possibility of obtaining the clear images of objects with low refractive indices and determining their geometric dimensions and thickness is shown. The approaches described in this paper can be useful for developers of compact devices aimed at detecting structural inhomogeneities inside the studied objects with the help of non-destructive methods. |
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