Компьютерная оптика (Dec 2018)

An X-ray diamond focuser based on an array of three-component elements

  • Anton Nalimov,
  • Victor Kotlyar,
  • Taras Kononenko,
  • Vitaly Ivanovich Konov

DOI
https://doi.org/10.18287/2412-6179-2018-42-6-933-940
Journal volume & issue
Vol. 42, no. 6
pp. 933 – 940

Abstract

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The use of a compound refractive lens fabricated of a thin diamond plate is considered for focusing hard 9.25 keV X-rays. Each element of the diamond lens consists of a central cavity and two side cavities in the diamond plate. It is shown numerically that an array of 20 such elements is able to produce a focal spot of width FWHM = 57 nm. The lens aperture size is 30 µm and the diamond plate thickness is 2 mkm. The simulation shows that by proportionally increasing the dimensions of the lenses on all three axes, bringing the input pupil size to 1 µm, the X-ray focal spot width can be increased to 1 µm using the same lens array.

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