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Backscattering X-ray imaging using a caustic network aperture
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DOI：10.35848/1347-4065/ae2408.png)
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Abstract
En 中文
We demonstrate backscattering X-ray imaging using a caustic network aperture (CNA). The CNA, inspired by geometric caustic patterns, enables lensless imaging and potential three-dimensional (3D) reconstruction from a single exposure. A stainless-steel CNA was fabricated and tested at similar to 8 keV, enabling retrieval of depth information by varying the CNA pattern magnification. The method was further extended to high-energy (similar to 100 keV) synchrotron X-rays using a tungsten CNA in a 90 degrees scattering geometry, successfully reconstructing a test sample. The large line width of the CNA facilitates fabrication of thick masks capable of blocking hard X-rays. Although the current depth resolution is limited, these results demonstrate that CNA-based backscattering X-ray imaging offers a compact, fast, and depth-resolved inspection technique for applications where transmission geometry is impractical, such as non-destructive testing of large structures and security screening.
Keywords:
X-ray imaging
backscattering X-ray imaging
coded aperture imaging
lensless imaging
image reconstruction
three-dimensional imaging
Journal
J
IF:
1.8
Papers:
561
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0
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