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Where is the X‑ray grid used?

Anti‑scatter grids are essential accessories for general radiography systems, widely installed inside the bucky device of radiographic tables and vertical bucky stands. Taking the Newheek 500mA radiology X‑ray machine as a typical example, the bucky unit under the radiography table provides installation space for both image cassettes and X‑ray grids. Operators can place the grid together with cassettes or digital image receptors inside this bucky slot before patient exposure. This setup is commonly adopted in hospitals, clinics and imaging centers for routine human‑body radiographic examinations.

What is the role of the X‑ray grid?

An X‑ray grid is a professional filtering component specially designed to eliminate the negative influence of scattered radiation on radiographic images. During X‑ray imaging, when X‑rays penetrate human tissues, a large amount of scattered radiation will be generated. Such scattered rays will lower image contrast, produce foggy background noise and reduce the diagnostic value of final films or digital images.

The grid shall be mounted between the patient’s body and the image receptor (film / flat‑panel detector). It absorbs most scattered photons while allowing valid primary X‑ray beams to pass through. Only a tiny fraction of scattered rays may leak through the grid structure. With proper grid application, radiologists can obtain sharper, higher‑contrast radiographs for more accurate clinical diagnosis.

Classification of X‑ray grids by physical structure

1. Convergence (Focused) Grid Each lead strip tilts toward the X‑ray focal spot. The extension lines of all lead strips converge precisely at the tube focus. This type matches a specific focal distance and delivers excellent filtering performance within its designed working range.
2. Parallel Grid All internal lead strips keep parallel with one another on the vertical plane. It has no strict focal‑distance requirement and brings flexible installation conditions, suitable for many general‑purpose radiography scenarios.
3. Cross Grid Manufactured by stacking two layers of parallel grids. The lead strips of two groups are arranged at a 90‑degree angle. It can block scattered rays from dual directions and achieves stronger anti‑scatter capacity than single‑direction linear grids.
4. Arc Grid Constructed in tile‑shaped overlapping layout with equal radius expanding outward from the central point. Its special curved structure fits special‑purpose radiography equipment and customized imaging requirements.

If you want to know more details about Newheek X‑ray grids including specifications, sizes and customization options, please feel free to contact our customer‑service team.

Weifang Newheek Electronic Technology Co., Ltd. (hereinafter referred to as Newheek) is a professional medical equipment supplier integrating R&D and sales of medical equipment, focusing on the field of radiology medical equipment for 22 years. We have established partnerships with dozens of countries around the world. The main products are: x ray hand switch, foot switch, x ray chest bucky stand, x ray mobile radiography table, x ray image intensifier TV system, high voltage power supply, high voltage cable, collimator, U-arm, portable x ray device, mobile DR etc x ray machine machine and components. Newheek is constantly improving and innovating to provide customers with better products and services.

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Author：X Ray Grids Maker