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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 4, Iss. 5 — May. 1, 1987
  • pp: 933–944

Status and outlook of coherent-x-ray scatter imaging

G. Harding and J. Kosanetzky  »View Author Affiliations


JOSA A, Vol. 4, Issue 5, pp. 933-944 (1987)
http://dx.doi.org/10.1364/JOSAA.4.000933


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Abstract

X-ray scattering, including coherent, incoherent, and resonance (fluorescent) phenomena, is of fundamental importance in contemporary science as a tool to probe the structure of matter at an atomic level. This elevated status is in sharp contrast to the role of x-ray scatter in medical and industrial radiography, where it is generally regarded as an unmitigated nuisance to be corrected for or, preferably, eliminated. We introduce a novel x-radiographic technique [x-ray diffraction computed tomography (CT)] based on measurement of coherent scatter. The physical background to coherent scattering is described in a simple, classical way, and its importance in conventional radiography is demonstrated by using Monte Carlo analysis. Some diffraction patterns of plastics and animal tissues are presented to illustrate the relevance of coherent scattering to material characterization and diagnosis in industrial and medical radiology. An experimental first-generation (single-pencil-beam) CT system has been constructed to demonstrate the feasiblity of x-ray diffraction CT. Some diffraction CT and coherent scatter projection images of simple objects are presented. Possibilities for improving the ratio of image contrast to noise and increasing the momentum resolution of the technique are illustrated.

© 1987 Optical Society of America

History
Original Manuscript: September 9, 1986
Manuscript Accepted: January 20, 1987
Published: May 1, 1987

Citation
G. Harding and J. Kosanetzky, "Status and outlook of coherent-x-ray scatter imaging," J. Opt. Soc. Am. A 4, 933-944 (1987)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-4-5-933

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