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Proceedings Paper

Role Of Surface Topography In X-Ray Scattering
Author(s): E. L. Church
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Paper Abstract

This paper discusses the relationship between x-ray mirror scattering and surface topography using vector electromagnetic scattering theory. The results relate the angular distribution of the scattered intensity to various surface-finish parameters which can, in principle, be determined independently; for example, by x-ray scattering in other geometries, visible-light scattering, or stylus measurements. The key role of spatial band-width limits in such parameters is emphasized. General results are described and illustrated by a discussion of the scattering from isotropically rough surfaces, measured in both a point-detector and in a line-detector geometry. Recent experimental results are then interpreted in terms of the surface-tension model of surface roughness, which predicts a hyperbolic scattering in the line-detector geometry. The present results are offered as a subject for further experimental investigation, a mechanism for predicting the scattering from a given surface, and as a rationale for specifying surface finish in terms of system performance.

Paper Details

Date Published: 9 August 1979
PDF: 7 pages
Proc. SPIE 0184, Space Optics Imaging X-Ray Optics Workshop, (9 August 1979); doi: 10.1117/12.957451
Show Author Affiliations
E. L. Church, U. S. AARADCOM, (United States)

Published in SPIE Proceedings Vol. 0184:
Space Optics Imaging X-Ray Optics Workshop
Martin C. Weisskopf, Editor(s)

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