Integration of Digital Detectors into a Diffraction Enhanced Imaging System
Abstract
Refraction contrast of cylindrical objects have been obtained using Diffraction Enhanced Imaging (DEl) and compared to the conventional radiographic contrast. Lucite cylinders and nylon wires were imaged using 18 kev synchrotron radiation at the National Synchrotron Light Source (NSLS) at Erookhaven National Laboratory. The DEl images were obtained by placing a Silicon analyzer crystal tuned to the 333 plane in the beam path between the sample and the detector. They showed improved contrast of the objects when compared to normal radiographs. This comparison, called the gain value, is the ratio of the refraction contrast (or peak contrast) to the conventional radiographic contrast. Experiments and computer simulation consistently resulted of gain values larger than one, indicating improved contrast due to DEl. Experimental results and corresponding computer simulations are presented.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 2001
- Accession Number
- ADB282896
Entities
People
- Dale Gayers
Organizations
- North Carolina State University