Projects per year
Abstract
Complementary to conventional and phase x-ray radiography, dark-field imaging has become central in visualizing diffusive scattering signals that come from spatially unresolved texture within an object. To date, most diffusive dark-field retrieval methods require either the acquisition of multiple images at the cost of higher radiation dose or significant amounts of computational memory and time. In this work, a simple method of x-ray diffusive dark-field retrieval is presented, applicable to any single-mask imaging setup, with only one exposure of the sample. The approach, which is based on a model of geometric and diffusive reverse-flow conservation, is implicit and noniterative. This numerically fast methodology is applied to experimental x-ray images acquired using both a random mask and a grid mask, giving high-quality reconstructions that are very stable in the presence of noise. The method should be useful for high-speed imaging and/or imaging with low-flux sources.
Original language | English |
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Pages (from-to) | 422-429 |
Number of pages | 8 |
Journal | Optica |
Volume | 10 |
Issue number | 4 |
DOIs | |
Publication status | Published - 20 Apr 2023 |
Projects
- 1 Finished
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Dynamic Multi-modal X-ray Imaging
Morgan, K. (Primary Chief Investigator (PCI))
Australian Research Council (ARC)
1/01/19 → 31/12/24
Project: Research
Equipment
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Australian Synchrotron
Office of the Vice-Provost (Research and Research Infrastructure)Facility/equipment: Facility