Computer Simulation of X-Ray Capillary Optics for Digital Mammography
Abstract
Mammography is the most widely used modality for breast cancer detection. The detection of tiny micro-calcifications and low contrast tissue is essential for mammography. Polycapillary optics provide near total scatter rejection as well as beam demagnification and shaping to match with detectors. They're expected to be superior to conventional film screen mammography because of contrast improvement and the advantages of digital imaging, which allow earlier and more reliable cancer detection with lower x-ray dose. This project is to simulate a variety of polycapillary optics for the development of a digital mammographic system with low patient dose, high resolution, contrast and sensitivity. Simulation makes it clear how different parameters impact optic transmission, resolution and contrast. For large trial polycapillary optics, it is much easier, much less expensive and time-consuming to use simulations to study their performance than manufacturing them first and then measuring them. In the first year, a much more physical simulation model was found and developed. A simulation program based on this new simulation model has been implemented and tested. Its simulation results match the experimental data very well.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1998
- Accession Number
- ADA365455
Entities
People
- Hui Wang
Organizations
- State University of New York at Albany