Abstract
AbstractProjection imaging has been employed widely in many areas, such as x-ray radiography, due to its penetration power and ballistic geometry of their paths. However, its resolution limit remains a major challenge, caused by the conflict of source intensity and source size associated with image blurriness. A simple yet robust scheme has been proposed here to solve the problem. An unconventional square aperture, rather than the usual circular beam, is constructed, which allows for the straightforward deciphering of a blurred spot, to unravel hundreds originally hidden pixels. With numerical verification and experimental demonstration, our proposal is expected to benefit multiple disciplines, not limited to x-ray imaging.
Funder
Austrian Science Fund
Spanish Ministry of Science and Innovation
Elkartek
Publisher
Springer Science and Business Media LLC
Reference44 articles.
1. Groenewald, A. & Groenewald, W. A. Development of a universal medical X-ray imaging phantom prototype. J. Appl. Clin. Med. Phys. 17, 356,365 (2016).
2. Seibert, J. A. Projection x-ray imaging: Radiography, mammography, fluoroscopy. Health Phys. 116, 148,156 (2019).
3. Müller, B. et al. X-ray imaging of human brain tissue down to the molecule level. Proc. XVII Int. Conf. X-ray Lasers 11886, 1188613 (2021).
4. De Jonge, M. et al. Quantitative phase imaging with a scanning transmission x-ray microscope. Phys. Rev. Lett. 100, 163902 (2008).
5. Turner, J. J. et al. X-ray diffraction microscopy of magnetic structures. Phys. Rev. Lett. 107, 033904 (2011).