Device for recording off-axis X-ray hologram

A technology of X-ray and hologram, which is applied in the direction of material analysis using radiation, processing by application of diffraction/refraction/reflection, instruments, etc., can solve interference, cannot refract or reflect X-rays, and limit the development of off-axis X-ray holography technology and other issues to achieve the effect of convenient handling
CN1136586CInactive Publication Date: 2004-01-28SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
Publication Date
2004-01-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

A device for recording off-axis X-ray hologram has an X-ray source in the vacuum cavity in casing. The X-ray emitted from it is splitted into reference beam and object beam by a dual-waveband unit. The specimen to be tested it put before or behind the focus of object beam. The reference beam and object beam are crossed to form an interference field. A receiver in the interference field sends the received interference signal to computer, where a 3D hologram is reconstructed without twin images.
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Description

technical field

[0001] The invention relates to a device for recording off-axis X-ray holograms. Background technique

[0002] Holography is a two-beam interference process, which records the specific wavefront of an object in the form of interference fringes, and then uses the principle of light diffraction to reproduce the recorded wavefront.

[0003] Since the wavelength of X-rays is much smaller than that of visible light, a much higher resolution can be obtained than that of visible light; and because of the strong penetrability of X-rays, many objects that are "opaque" to visible light become "transparent" to X-rays. Therefore, X-ray holography has incomparable advantages to other imaging methods in the fields of natural science and life science:

[0004] 1. High-resolution three-dimensional information of biological samples can be obtained. For X-ray holograms, it not only records the surface information of the sample, but also records the deep information of the sam...

Claims

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