Synchrotron coatings
Over the last 20 years, multilayer optics for the broad band of radiation from 40 eV to more than 100 keV have revolutionized the measurement capabilities and experimental setups for elemental analysis, diffraction and scattering. This technology was pioneered by us under our former name Osmic™.
At CHESS, more than 20 different designs of Rigaku multilayers are in use. Every solution for a synchrotron beamline needs some adaptation and tailoring.
New products: Striped Double Multilayer Monochromators (SDMM)
In general, substrates used for multilayer coatings need very smooth surfaces, with roughness values typically less than 0.2 nm RMS. This requirement drives up the price of substrates for synchrotron optics. Rigaku has developed the ability to coat multiple stripes onto each individual substrate. To change monochromator settings, the optics need only a transverse translation to illuminate each progressive stripe. The examples shown in the presentation below show how this cost effective approach can increase the capability of your beamline.
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View a slide presentation of examples taken from a long list of synchrotron optics we have designed, sold and installed. |
The following table shows our core competencies and coating capabilities:
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Coating portfolio |
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| Design: | Uniform (no grading) Lateral graded, radial graded, bilateral (2D) graded Depth graded, super mirrors and highly selective multilayers Flat or curved substrates Glancing angle (<1°) to normal |
| Material: | W/Si, W/C, Ni/Ti, Ni/B4C, Ni/C, Cr/C, Cr/Sc, Mo/Si,
Mo/B4C, La/B, V/C, Ru/B4C, Al2O3/B4C, SiC/Si, Si/C, Si/C/C, Fe/Si, and more |
| Size: | From 0.01 m to 1.5 m |
| Multialyer d-spacings: | Down to 11 Å |
| Energy range: | From 40 eV to 100 keV or higher |
Application examples
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Application |
d-spacing |
Material |
ΔE/E |
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In-situ diffraction/scattering |
1.5 nm |
Mo/B4C |
333.3 |
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Microbeam diffraction |
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2.8 nm |
W/B4C |
52.6 |
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Diffraction general |
2.7 nm |
W/C |
45.5 |
Partial list of routinely available DMM optics:
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Product |
ML materials |
2d spacing (Å) |
Reflectivity |
E/E (%) |
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DMM30W |
W-B4C |
30 |
40 |
0.8-1.2 |
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DMM44W |
W-B4C |
44 |
50 |
1-2 |
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DMM50W |
W-B4C |
50 |
60 |
1-2 |
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DMM60A |
W-Si |
60 |
70 |
1.5-2 |
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custom SM |
as specified |
call |
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Multilayers: The possibilities are endless
Please contact us for a solution designed for your specific needs