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Scanning X-Ray Analytical Microscope using X-Ray Guide Tube

Published online by Cambridge University Press:  06 March 2019

Shuichi Shimomura
Affiliation:
National Institute for Research in Inorganic Materials 1-1 Namiki, Tsukuba-shi, Ibaraki-ken, 305 Japan
Hiromoto Nakazawa
Affiliation:
National Institute for Research in Inorganic Materials 1-1 Namiki, Tsukuba-shi, Ibaraki-ken, 305 Japan
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Abstract

A scanning X-ray analytical microscope was constructed using X-ray guide tube(XGT). XGT is a glass capillary which guides and focuses x-rays by total external reflection at the inner wall. The nature of X-ray beam passed through XGT is varied depending on the form of XGT. The cylindrical and conical types were used for the present setup. A small area (10μm × 10μm) of the sample was irradiated by the X-ray microbeam formed by XGT. Fluorescent and diffracted X-rays from the small area were detected by SSD. By scanning the sample in the plane normal to the X-ray microbeam, the intensity distributions of such secondary x-rays were measured and used as picture elements for constructing x-ray mapping images. The sample was a thin-section of an old chinaware. The images suggest a wide application of this instrument.

Type
XV. X-Ray Imaging and Tomography
Copyright
Copyright © International Centre for Diffraction Data 1991

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