Imaging Conditions in Moving Grid Technique for Reduction of Grid Line Artifacts


Antiscatter grids are considered an indispensable tool to improve image contrast and even decrease imaging doses if they are properly selected and installed specifically for the imaging system. However, the most critical problem remaining as an obstacle for their successful use in digital x-ray imaging is probably the the observation of the grid [...]

Imaging Conditions in Moving Grid Technique for Reduction of Grid Line Artifacts2019-04-02T14:34:09+00:00

High Precision Carbon-Interspaced Antiscatter Grids


JPI has developed high precision carbon-interspaced antiscatter grids to be suitable for Digital Radiography (DR) by adopting a precise sawing process. For systematic evaluation of the grid performance, we prepared several sample grids having different grid frequencies (4.0 to 8.5 lines/mm) and grid ratios (5:1 to 10:1) and established a well-controlled test condition [...]

High Precision Carbon-Interspaced Antiscatter Grids2018-10-31T13:04:37+00:00

Antiscatter Grids and Moire Elimination


Since the development of the antiscatter grid in 1913, a major problem has been the resulting lines that can appear in the x-ray image. This critical defect created a risk of misdiagnosis by physicians. In 1920, Dr. Hollis Potter devised a solution for this problem by finding a movement patter that would eliminate [...]

Antiscatter Grids and Moire Elimination2018-10-30T12:53:28+00:00

Frequently Asked Questions About X-Ray Grids


How does scatter radiation happen? In general, scatter radiation is Compton scatter radiation. This radiation usually occurs when x-ray interacts with matter. It occurs in medium and high energy range. When do you recommend the use of an x-ray grid? An x-ray grid is recommended when x-raying objects that are 10cm thick or [...]

Frequently Asked Questions About X-Ray Grids2021-03-03T18:24:54+00:00

DR Image Optimization with JPI’s Grid Solutions


In Digital Radiography (DR), Moire is the appearance of wavy distortions in an image. It’s the result of interference between the antiscatter grid and the digital detector. Moire patterns are major physical effects that cannot be effectively removed by software. This makes proper diagnosis very difficult if not impossible. Historical Background Since antiscatter [...]

DR Image Optimization with JPI’s Grid Solutions2018-10-24T16:34:28+00:00
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