Abstract
One-dimensional coded apertures have been investigated for use in imaging long, narrow objects such as reactor fuel pins. Since coded apertures work better for small, point-like objects, while pinhole apertures work better for large extended objects, a hybrid aperture combining these properties seems attractive for imaging fuel pins. The one-dimensional aperture behaves like a coded aperture in the direction for which the object is small, while it acts like a pinhole in the direction for which the object is extended. A one-dimensional Fresnel zone plate has been investigated, and an iterative nonlinear algorithm has been developed for removing the background produced by extra-core values in the point spread function. The algorithm is shown to have a decidedly nonlinear effect on the effective system transfer function.
| Original language | English (US) |
|---|---|
| Pages | 71-78 |
| Number of pages | 8 |
| State | Published - 1977 |
| Event | Unknown conference - Reston, VA, USA Duration: Apr 18 1977 → Apr 21 1977 |
Other
| Other | Unknown conference |
|---|---|
| City | Reston, VA, USA |
| Period | 4/18/77 → 4/21/77 |
ASJC Scopus subject areas
- Engineering(all)