Polycapillary optics for powder diffraction

Huapeng Huang; Carolyn A. MacDonald; Walter M. Gibson; John Chik; Adrian Parsegian; Igor Yu. Ponomarev

doi:10.1117/12.449857

6 December 2001 Polycapillary optics for powder diffraction

Huapeng Huang, Carolyn A. MacDonald, Walter M. Gibson, John Chik, Adrian Parsegian, Igor Yu. Ponomarev

Proceedings Volume 4502, Advances in Laboratory-based X-Ray Sources and Optics II; (2001) https://doi.org/10.1117/12.449857
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

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.

Citation Download Citation

Huapeng Huang, Carolyn A. MacDonald, Walter M. Gibson, John Chik, Adrian Parsegian, and Igor Yu. Ponomarev "Polycapillary optics for powder diffraction", Proc. SPIE 4502, Advances in Laboratory-based X-Ray Sources and Optics II, (6 December 2001); https://doi.org/10.1117/12.449857

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