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Proceedings Paper

Polycapillary optics for powder diffraction
Author(s): Huapeng Huang; Carolyn A. MacDonald; Walter M. Gibson; John Chik; Adrian Parsegian; Igor Yu. Ponomarev
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Paper Abstract

In this paper, we describe a low power system using Polycapillary collimating and focusing optics that were designed to collect Cu Ka radiation from an Oxford Ultra-Bright micro-focus source for X-ray powder diffraction measurements. The characterizations of the source and polycapillary optics are presented. A collimator with two apertures was used to block high energy X-rays. An optic alignment system was designed to optimize coupling between the optics and the source, taking into account the maximum radiation direction from the source. Several powder sample data sets were collected with this system and their qualities are compared with data sets from the same samples taken with an Enraf-Nonius FR590 sealed-tube source system. Discussion is also presented for further improving the performance of this low power system.

Paper Details

Date Published: 6 December 2001
PDF: 8 pages
Proc. SPIE 4502, Advances in Laboratory-based X-Ray Sources and Optics II, (6 December 2001); doi: 10.1117/12.449857
Show Author Affiliations
Huapeng Huang, Univ. at Albany and X-Ray Optical Systems, Inc. (United States)
Carolyn A. MacDonald, Univ. at Albany (United States)
Walter M. Gibson, Univ. at Albany and X-Ray Optical Systems, Inc. (United States)
John Chik, National Institutes of Health (United States)
Adrian Parsegian, National Institutes of Health (United States)
Igor Yu. Ponomarev, X-Ray Optical Systems, Inc. (United States)


Published in SPIE Proceedings Vol. 4502:
Advances in Laboratory-based X-Ray Sources and Optics II
Ali M. Khounsary; Carolyn A. MacDonald, Editor(s)

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