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Advance in NPL X-Ray Gratings and Spectrometers

Published online by Cambridge University Press:  06 March 2019

M. Stedman  and
A. Franks
M. Stedman
Affiliation:
Mechanical and Optical Metrology Division National Physical Laboratory, Teddington, England
A. Franks
Affiliation:
Mechanical and Optical Metrology Division National Physical Laboratory, Teddington, England
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Abstract

NPL x-ray gratings for use at grazing incidence in the wavelength range of 0.05 to 20 nm have diffraction efficiencies in the first order ranging from approximately 3% at 0.1 nm to 20% at wavelengths greater than 2 nm. X-ray gratings may have either a rectangular profile produced by processing a ruled or holographic grating or may have a shallow blazed waveform. In both types of grating, the grooves are formed in a vitreous silica blank and are usually overcoated with gold.

A precision short wavelength (0.05 to 0.5 nm) Rowland circle focusing spectrometer has bee n constructed, which can cater for concave gratings of radii between 5 and 15 m.

Type
Laser Analysis
Information
Advances in X-Ray Analysis , Volume 19: Twenty-Fourth Annual Conference on Applications of X-ray Analysis, August 6-8, 1975 , 1975 , pp. 571 - 575
Copyright
Copyright © International Centre for Diffraction Data 1975

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References

1. Franks, A., Lindsey, K., Bennett, J.M., Speer, R.J., Turner, D. and Hunt, D.J., “The Theory, Manufacture, Structure and Performance of NFL X-ray Gratings”, Phil. Trans. Roy. Soc. 277A, 503–543 (1975).Google Scholar
2. Sayce, L. A. and Franks, A., “NPL X-ray Gratings for X-ray Spectroscopy”, Proc. Roy. Soc. 282A, 353–357 (1964).Google Scholar
3. Hutley, M. C., “Blased Interference Diffraction Gratings for the Ultra-violet”, Optica Acta 22, 1–13 (1975).Google Scholar
4. Franks, A., Stedman, M. and Braybrook, R.F., “The Polar Coordinate X-ray Grating Spectrometer”, Jnl. Phys. E 6, 233–236 (1973).Google Scholar