SOME APPLICATIONS OF ONE-DIMENSIONAL CODED APERTURES.

R. G. Simpson, Harrison H Barrett, J. G. Kelly, K. T. Stalker

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Scopus citations

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 languageEnglish (US)
Title of host publicationX-Ray Imaging
PublisherSPIE
Pages71-78
Number of pages8
Volume106
Publication statusPublished - 1977
Externally publishedYes
EventUnknown conference - Reston, VA, USA
Duration: Apr 18 1977Apr 21 1977

Other

OtherUnknown conference
CityReston, VA, USA
Period4/18/774/21/77

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Simpson, R. G., Barrett, H. H., Kelly, J. G., & Stalker, K. T. (1977). SOME APPLICATIONS OF ONE-DIMENSIONAL CODED APERTURES. In X-Ray Imaging (Vol. 106, pp. 71-78). SPIE.