Parabolic single-crystal diamond lenses for coherent x-ray imaging

We demonstrate parabolic single-crystal diamond compound refractive lenses designed for coherent x-ray imaging resilient to extreme thermal and radiation loading expected from next generation light sources. To ensure the preservation of coherence and resilience, the lenses are manufactured from the...

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Bibliographic Details
Published in:Applied physics letters 2015-09, Vol.107 (11)
Main Authors: Terentyev, Sergey, Blank, Vladimir, Polyakov, Sergey, Zholudev, Sergey, Snigirev, Anatoly, Polikarpov, Maxim, Kolodziej, Tomasz, Qian, Jun, Zhou, Hua, Shvyd'ko, Yuri
Format: Article
Language:English
Subjects:
diamond
lenses
PARTICLE ACCELERATORS
photons
single crystals
x-ray imaging
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Summary:We demonstrate parabolic single-crystal diamond compound refractive lenses designed for coherent x-ray imaging resilient to extreme thermal and radiation loading expected from next generation light sources. To ensure the preservation of coherence and resilience, the lenses are manufactured from the highest-quality single-crystalline synthetic diamond material grown by a high-pressure high-temperature technique. Picosecond laser milling is applied to machine lenses to parabolic shapes with a ≃1 μm precision and surface roughness. A compound refractive lens comprised of six lenses with a radius of curvature R=200 μm at the vertex of the parabola and a geometrical aperture A=900 μm focuses 10 keV x-ray photons from an undulator source at the Advanced Photon Source facility to a focal spot size of ≃20×90 μm2 with a gain factor of ≃50−100.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4931357