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Updated: Sep 24, 2025

$High Pressure Single Crystal Diffraction at PX^2$

High Pressure Single Crystal Diffraction at PX^2

Published on: January 16, 2017

Polished diamond X-ray lenses.

Rafael Celestre¹, Sergey Antipov², Edgar Gomez²

¹ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38000 Grenoble, France.

Journal of Synchrotron Radiation

|May 5, 2022

Summary

High-quality diamond X-ray lenses offer comparable focusing to beryllium lenses but with lower scattering. These advanced lenses, produced by laser ablation and polishing, show promising results for X-ray applications.

Keywords:

X-ray lenses compound refractive lenses diamond

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Published on: April 23, 2021

Area of Science:

Materials Science
Optics
Physics

Background:

Advancements in X-ray optics are crucial for high-resolution imaging and analysis.
Beryllium lenses are a commercial standard but have limitations.
Diamond lenses offer potential for superior optical properties.

Purpose of the Study:

To fabricate and characterize high-quality bi-concave 2D focusing diamond X-ray lenses.
To compare the performance of diamond lenses with commercial beryllium lenses.
To evaluate figure errors, focusing capabilities, and scattering properties.

Main Methods:

Laser ablation and mechanical polishing for diamond lens fabrication.
X-ray speckle tracking for measuring figure errors.
Wire scans and out-of-focus beam profiling for focal plane analysis.
Small-angle X-ray scattering (SAXS) for evaluating material properties.

Main Results:

Diamond lenses with R = 100 µm were produced with improved figure errors after polishing.
Figure errors of polished diamond lenses are comparable to commercial R = 50 µm beryllium lenses.
Focal plane beam sizes for diamond lenses are similar to beryllium lenses.
Polished diamond lenses exhibit significantly lower SAXS signals than beryllium lenses.

Conclusions:

Laser-ablated and polished diamond X-ray lenses demonstrate performance comparable to commercial beryllium lenses.
Diamond lenses present a viable alternative with reduced scattering, beneficial for certain X-ray applications.
Further optimization of diamond lens fabrication could enhance their widespread adoption in X-ray focusing.