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Light intensity transmission equation based X-ray single-exposure imaging device and method

A light intensity transmission equation and imaging device technology, applied in the direction of using radiation for material analysis, etc., can solve the problem that the refraction system cannot achieve focus imaging, etc., and achieve the effect of simple structure, simple operation, and single optical path

Active Publication Date: 2019-11-15
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

In the X-ray band, due to the strong absorption of the material, the refraction system cannot achieve focused imaging

Method used

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  • Light intensity transmission equation based X-ray single-exposure imaging device and method
  • Light intensity transmission equation based X-ray single-exposure imaging device and method
  • Light intensity transmission equation based X-ray single-exposure imaging device and method

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Embodiment

[0061] The first single focus photon sieve focusing lens 5 (as figure 2 shown) and the second single-focus photon sieve focusing lens 7 (as figure 2 Shown) the focal length is 30.00mm, bifocal photon sieve focusing lens 6 (such as image 3 shown) have focal lengths of 105.90mm and 94.72mm. Specifically realize the X-ray single-exposure imaging device based on the light intensity transmission equation: such as figure 1 As shown, it includes an X-ray source 1, a beam expander 2, a first three-dimensional translation stage 3 for placing the measured object 4, a first single focus photon sieve focusing lens 5, a double focus photon sieve focusing lens 6, a second single focus A photon sieve focusing lens 7, a second three-dimensional translation stage 8, a computer 10, and an X-ray detector 9 fixed on the second three-dimensional translation stage 8;

[0062] The light pulse emitted by the X-ray source 1 is expanded by the beam expander 2, and the expanded beam is used as an ...

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Abstract

The invention discloses a light intensity transmission equation based X-ray single-exposure imaging device and method. The device comprises an X-ray source, a beam expander, a first three-dimensionaltranslation table, a measured object, a first single-focus photon sieve focusing lens, a double-focus photon sieve focusing lens, a second single-focus photon sieve focusing lens, a second three-dimensional translation table, an X-ray detector and a computer. The X-ray single-exposure imaging device can be used for imaging from X-rays to terahertz wave bands; the imaging method is simple in singlelight path operation, only needs to record a single intensity map, can quickly realize accurate reproduction of a phase image of the measured object online in real time, and is especially suitable for imaging and observation of a dynamic object; the imaging method has low coherence requirement on an X-ray source, and the X-ray source can be a coherent X-ray source and a partially coherent X-ray source; and the phase image of the object can be rapidly and accurately recovered by utilizing the recorded intensity map, and the robustness of the imaging device can be improved by avoiding multipleoperations.

Description

technical field [0001] The invention relates to a light intensity transmission equation, in particular to an X-ray single-exposure imaging device and an imaging method based on the phase recovery of the light intensity transmission equation. Background technique [0002] Phase recovery is an important technology in optical imaging and measurement, which has attracted much attention for its wide application prospects in the fields of microscopic imaging, damage detection and phase encryption. In the dynamic microscopic imaging of living cells, the phase visualization of phase recovery technology can realize effective label-free imaging; in the damage or defect detection of optical components, the phase recovery technology can extract the damage structure information at different depths layer by layer , to provide effective guidance for the repair and replacement of optical components; in optical encryption, phase recovery technology can realize a variety of optical image phas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/04
CPCG01N23/04
Inventor 张军勇张秀平张艳丽周申蕾朱健强
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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