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Absolute zone plate efficiency measurement using laboratory X-ray sources

Absolute zone plate efficiency measurement using laboratory X-ray sources An absolute efficiency measurement technique for Fresnel zone plates using an electron impact micro-focus laboratory X-ray source (Lα line of Tungsten at 8.4 KeV) is demonstrated. A quasi-monochromatic x-ray image of a zone plate was obtained employing a pair of copper and cobalt filters. Applying the method to a gold zone plate with 70 nm outermost zone width, 160 μm diameter, and 660 nm zone height, the absolute first order efficiency was measured to be 8.7% ± 0.6%, which is 73% of the theoretically calculated value. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of X-Ray Science and Technology IOS Press

Absolute zone plate efficiency measurement using laboratory X-ray sources

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Publisher
IOS Press
Copyright
Copyright © 2008 by IOS Press, Inc
ISSN
0895-3996
eISSN
1095-9114
Publisher site
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Abstract

An absolute efficiency measurement technique for Fresnel zone plates using an electron impact micro-focus laboratory X-ray source (Lα line of Tungsten at 8.4 KeV) is demonstrated. A quasi-monochromatic x-ray image of a zone plate was obtained employing a pair of copper and cobalt filters. Applying the method to a gold zone plate with 70 nm outermost zone width, 160 μm diameter, and 660 nm zone height, the absolute first order efficiency was measured to be 8.7% ± 0.6%, which is 73% of the theoretically calculated value.

Journal

Journal of X-Ray Science and Technology – IOS Press

Published: Jan 1, 2008

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