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Dividing amplitude off-axis x-ray holograph device

An X-ray, off-axis technology, used in measurement devices, analysis materials, material analysis using radiation, etc., can solve problems such as insufficient resolution, and achieve high academic value and application prospects.

Inactive Publication Date: 2009-02-25
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the resolution of recording media in all X-ray bands is far from meeting this requirement

Method used

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  • Dividing amplitude off-axis x-ray holograph device
  • Dividing amplitude off-axis x-ray holograph device
  • Dividing amplitude off-axis x-ray holograph device

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Embodiment Construction

[0040] Below in conjunction with embodiment, the present invention will be further described, but should not limit the protection scope of the present invention with this.

[0041] The sub-amplitude off-axis X-ray holographic device of the present invention is as figure 2 As shown, it consists of seven parts, which include a quasi-monochromatic X-ray source 1, a grating 2, a first reflector 3 and a second reflector 4, an object to be measured 5, an X-ray zone plate 6 and a recording medium 7.

[0042] The so-called quasi-monochromatic X-ray source is a synchrotron radiation light source that passes through a monochromator and becomes a quasi-monochromatic X-ray source with a wavelength from arrive adjustable.

[0043] Said grating is an X-ray reflective grating with 3000 lines / mm, which is available in the market.

[0044] The two reflecting mirrors are reflecting mirrors working in the X-ray band.

[0045] Said X-ray zone plate is an imaging X-ray zone plate with a dia...

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Abstract

A framing off-axis X-ray holographic apparatus has the characteristics that it includes quasi-monochromatic X ray source, grating, the first reflector, the second reflector, X-ray wave zone plate and recording medium, a grating is installed on the output optical path of quasi-monochromatic X-ray source, dividing the X ray to be A and B light beam, the A bight beam is to be referential beam after being reflected by the first reflector and the B light beam is to be subject beam through a subject to be measured after being reflected by second reflector, then the two beams meet together and are recorded by medium through X ray wave zone plate.

Description

technical field [0001] The invention relates to an X-ray holographic device, in particular to a sub-amplitude off-axis X-ray holographic device. Background technique [0002] In 1949, Gabor invented holography. Due to the lack of a high-brightness coherent light source, it has been in a silent state, and the recording method also stays in the coaxial method. Due to the influence of twin images, the image quality is also very poor. [0003] The advent of the laser in 1960 provided an ideal coherent light source for holography. In 1962, Leith and others used a very simple method - off-axis holography, which eliminated the influence of twin images very well. In Leith in 1964, they proposed the concept of diffuse illumination holography. Previously, all holograms produced were holograms of transparent objects, which were often almost recognizable shadow images of that object. [0004] When an object is diffusely illuminated, no recognizable shadow image of the object appears ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/04G01N23/00
Inventor 陈建文高鸿奕干慧菁朱化凤李儒新徐至展
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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