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Combined X-ray converging optical element

An optical device and X-ray technology, applied in the optical field, can solve the problems of low transmission efficiency and poor focusing effect of capillary devices, and achieve the effects of reducing light intensity loss, reducing roughness, and improving transmission efficiency

Active Publication Date: 2010-03-10
BEIJING NORMAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The higher the X-ray energy, the smaller the critical grazing angle of total reflection, the lower the transmission efficiency of the capillary device, and the worse the focusing effect

Method used

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Embodiment Construction

[0034] The optical device in the embodiment of the present invention includes a plurality of solid components, each solid component is made of glass material, and the side wall is coated with a metal film. The critical surface of the glass material and the metal film constitutes a reflective surface. One of the two ends of each solid member is used to receive X-rays, and when the X-rays pass through the reflective surface, total reflection occurs, and the X-rays are output from the other end. Converge outside the other end. A plurality of solid components jointly realize the convergence of divergent X-rays. The embodiment of the present invention improves the effect of converging high-energy X-rays by increasing the density of the reflective material. The optical device in the embodiment of the present invention can converge X-rays above 40keV, especially X-rays of 40-120keV. And the smoothness of the glass material is used to ensure the high-efficiency transmission of X-rays...

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Abstract

The invention discloses a combined X-ray converging optical element used for converging high-energy X-ray and filtering low-energy X-ray. The optical element has an axis symmetric structure, and an outline bus in the axial direction is a combination of two quadratic curve segments; the optical element comprises a plurality of solid components by which X-ray is converged and diverged; the solid components are made of glass material and plated with metal films on the lateral walls; critical surfaces of the glass material and the metal films form reflecting surfaces for reflecting X-ray when theX-ray passes by the reflecting surfaces; one end of each solid component is used for receiving the X-ray and the other end is used for outputting the X-ray.

Description

technical field [0001] The invention relates to the field of optics, in particular to a combined X-ray converging optical device. Background technique [0002] X-rays are electromagnetic waves with a shorter wavelength than ultraviolet rays, and are widely used in physics, chemistry, life science, material science, astronomy, environmental science, medicine and other fields. However, because the wavelength of X-rays is too short, people have been unable to change its propagation direction before the 1980s. To obtain high power density X-rays, the power of X-ray generating equipment must be increased. In the late 1980s, the former Soviet scientist Kumakhov proposed an optical device composed of multiple hollow glass capillary tube bundles, which can adjust the transmission direction of X-rays in a large angle and wide band according to people's requirements. Such optical devices are known as capillary X-ray lenses. The invention of this technology is a breakthrough in the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21K1/06G21K3/00C03C3/091
Inventor 孙天希李玉德刘志国林晓燕潘秋丽罗萍谈国太程琳
Owner BEIJING NORMAL UNIVERSITY