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Method for producing an x-ray scattered radiation grid

A technique of scattering radiation and X-rays, which is applied in the field of producing X-ray scattering radiation grids, and can solve problems such as loss of main radiation

Active Publication Date: 2018-08-21
SIEMENS HEALTHCARE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this leads to a significant loss of principal radiation at the edges of the image recording, since at these points a larger fraction of the incident principal radiation hits the absorbing regions of the scattered radiation grid

Method used

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  • Method for producing an x-ray scattered radiation grid
  • Method for producing an x-ray scattered radiation grid
  • Method for producing an x-ray scattered radiation grid

Examples

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Embodiment Construction

[0029] figure 1 A very simplified spatial view of an extrusion device for producing an X-ray scattering radiation grid 1 is shown. Extrusion devices usually have an extrusion piston 2 and a base body 4 (also called extrusion nozzle). Depending on the arrangement and the number of channels 6 of the scattering radiation grid 1 to be produced, the base body 4 is provided at the output with holes 5 and a mesh 7, wherein the first material 3 absorbing X-ray radiation is pressed by the mesh 7, and After hardening, the radiation-scattering grid 1 is formed. Extrusion equipment similar to that used to produce honeycomb catalysts can be used.

[0030] The base body 4 can be modified during the extrusion process such that obliquely running channels 6 are formed. This produces a grid of focused diffuse radiation 1 .

[0031] The first material may be a metal-loaded plastic, or a metal-loaded ceramic or metal zeolite compound. It is important that the atomic number of the metal is hi...

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Abstract

The invention discloses a method for producing an x-ray scattered radiation grid (1). In an embodiment of the method, a first material (3) which absorbs x-ray radiation, is extruded through a matrix (4) such that the x-ray scattered radiation grid (1) with through-channels (6) permeable to x-ray radiation is formed as an extrudate. An embodiment of the invention is advantageous in that x-ray scattered radiation grids can be produced with high precision and cost-effectively.

Description

technical field [0001] The invention relates to a method for producing an X-ray scattering radiation grid. Background technique [0002] During X-ray imaging, high demands are placed on the image quality of X-ray recordings. For this type of recording, in particular performed in medical X-ray diagnosis, the object to be examined is irradiated with X-ray radiation from an approximately point-shaped X-ray source. The attenuation distribution of the X-ray radiation on the side of the object opposite the X-ray source is captured in two dimensions. For example in computed tomography systems, the x-ray radiation attenuated by the object can also be captured line by line. [0003] In addition to X-ray film detectors and gas detectors, flat panel detectors are increasingly being used as X-ray detectors and generally have optoelectronic semiconductor components arranged in a matrix as optoelectronic receivers. Ideally, each pixel of the x-ray recording should correspond to the att...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21K1/02B29C48/11
CPCG21K1/02C25D7/00C25D7/04A61B6/4035B29C48/142G21K1/025B29C48/11B29K2505/04B29K2505/08B29K2995/0003B29C48/001A61B6/4291C25D5/56G21K1/10
Inventor H·科克马兹P·斯塔拉特纳
Owner SIEMENS HEALTHCARE GMBH