Automatic calibration system and method for X-ray grating-based phase-contrast imaging

A technology of phase contrast imaging and automatic calibration, which is applied in material analysis using radiation, material analysis using wave/particle radiation, measuring devices, etc. It can solve problems such as affecting experimental efficiency and long adjustment time, and improve experimental efficiency. , The effect of reducing workload and reducing human eye errors

Active Publication Date: 2017-08-22
SHENZHEN INST OF ADVANCED TECH
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Problems solved by technology

In fact, even experienced experimenters spend a lot of time adjusting the optical path each time, which greatly affects the efficiency of the experiment

Method used

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  • Automatic calibration system and method for X-ray grating-based phase-contrast imaging
  • Automatic calibration system and method for X-ray grating-based phase-contrast imaging

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] refer to figure 1 Shown is a hardware architecture diagram of the X-ray grating phase-contrast imaging automatic calibration system of the present invention.

[0021] The system includes a computer 101 , a COM module 102 , a motion control module 103 , an X light source 104 , a source grating 105 , a beam splitting grating 106 , a sample stage 107 , an analysis grating 108 , a detector 109 and an image transmission module 110 . Wherein: X light source 104, source grating 105, beam splitting grating 106, sample stage 107, analysis grating 108 and detector 109 are located in the center of the same optical path, COM module 102 is electrically connected with computer 101, motion control module 103, image transmission module 110 respectively Connection; the motion control module 103 is electrically connected to the X light source 1...

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Abstract

The invention relates to an automatic calibration method for X-ray grating-based phase-contrast imaging. The automatic calibration method comprises the following steps: moving a sample stage to allow the sample stage not to be located on an optical path; allowing X-rays emitted by an X-ray source to form a stripe image on a detector; carrying out analysis so as to obtain the parameters of the stripe image; determining whether the parameters of the stripe image are matched with the parameters of a first standard image; if matching is succeeded, moving the sample stage back to the optical path and placing a sample onto the sample stage; allowing X-rays emitted by the X-ray source to form a shadow image on the detector; carrying out analysis so as to obtain the parameters of the shadow image; determining whether the parameters of the shadow image are matched with the parameters of a second standard image; and if matching is succeeded, accomplishing automatic calibration. The invention also relates to an automatic calibration system for X-ray grating-based phase-contrast imaging. The automatic calibration system and method for X-ray grating-based phase-contrast imaging in the invention can accomplish automatic calibration of grating-based phase-contrast imaging, reduces the workload of manual adjustment, improves experimental efficiency and lowers errors caused by human eyes.

Description

technical field [0001] The invention relates to an automatic calibration system and method for X-ray grating phase contrast imaging. Background technique [0002] In the field of X-ray grating phase-contrast imaging, grating phase-contrast imaging uses a common X light source, which greatly reduces the cost of the experiment. Therefore, it is considered to be a technical means closest to practical application. There are as many as three gratings on the entire optical path of this technology, and the phase contrast imaging technology is extremely sensitive to the optical path, requiring a very precise optical path. [0003] The traditional method is: place the optical components on the translation (XYZ direction), rotation and deflection platform, connect the motion controller and COM module, and manually operate the computer to regulate the optical path. However, the entire optical table has many components, and precise optical adjustment is prone to errors and is very time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/04G06K9/62
CPCG01N23/04G01N2223/1016G01N2223/3037G01N2223/426G06F18/22
Inventor 李文超陈鸣闽李凌李志成辜嘉
Owner SHENZHEN INST OF ADVANCED TECH
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