Forward model for propagation-based x-ray phase contrast imaging in parallel- and cone-beam geometry
| Autor: | Shuai Leng, Brandon J. Nelson, William Graves, Yongjin Sung, Rajiv Gupta, Elisabeth R. Shanblatt, Cynthia H. McCollough |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
Rapid prototyping Wave propagation business.industry Paraxial approximation Phase-contrast imaging 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics Optics Cone (topology) Beam propagation method X-Ray Phase-Contrast Imaging 0103 physical sciences Spatial frequency 0210 nano-technology business |
| Zdroj: | Optics express. 27(4) |
| ISSN: | 1094-4087 |
| Popis: | We demonstrate a fast, flexible, and accurate paraxial wave propagation model to serve as a forward model for propagation-based X-ray phase contrast imaging (XPCI) in parallel-beam or cone-beam geometry. This model incorporates geometric cone-beam effects into the multi-slice beam propagation method. It enables rapid prototyping and is well suited to serve as a forward model for propagation-based X-ray phase contrast tomographic reconstructions. Furthermore, it is capable of modeling arbitrary objects, including those that are strongly or multi-scattering. Simulation studies were conducted to compare our model to other forward models in the X-ray regime, such as the Mie and full-wave Rytov solutions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|