Parabolic one-dimensional focusing X-ray combined lens

Abstract

A parabolic one-dimensional focusing X-ray combination lens, comprising a lens body, a plurality of through-hole air gaps arranged in a straight line sequence on the lens body, a scale chassis for beam alignment under the lens body, the scale The scale on the chassis is located on the side wall of the chassis. The scale chassis is made of aluminum material, and the lens main body is made of aluminum material. The thickness of the lens ranges from 500 microns to 2000 microns. The invention provides a structure with a graduated chassis to mark the axis of the combined lens, which is easy to align the beams in use; it has the advantage that the thickness of the combined lens can be increased by dozens of times, so the light collection aperture can be greatly increased; The limitation is small, the spherical aberration of the lens is small, and it can be integrated and precisely processed at one time.

Description

(1) Technical field [0001] The invention belongs to an X-ray microstructure optical device, in particular to an X-ray focusing combination lens, which is suitable for one-dimensional focusing of high-energy X-ray wave band (>5keV) radiation. (2) Background technology [0002] X-ray combined lens is a new type of X-ray microstructure optical element suitable for high-energy X-ray band (that is, X-ray radiation energy exceeding 5keV) proposed by A. Snigirev in 1996. The X-ray combination lens has many advantages, such as no need to bend the optical path, good high temperature stability and easy cooling, simple and compact structure, and low requirements on the surface roughness of the lens. In particular, it is suitable for occasions where the energy of X-ray radiation exceeds 5keV, so this element is considered to have broad application prospects in scientific and technical research. In recent years, research on various X-ray diagnostic techniques based on X-ray combined ...

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