Do you know that the x ray grid can also be detected

Do you know that the x ray grid can also be detected? If you want to know whether the x ray grid in your hand meets your requirements for the x ray grid, you can take a look at the test method of the x ray grid with the editor.
The first is the grid ratio test of the x ray grid. The dodge test of the x ray grid needs to be measured with the help of general equipment. The grid density detection of the x ray gridis to close the convergence distance of the focal-grid distance (parallel grid is 1M). Use the X-ray photography of the x ray grid to measure the density of the grid.
The inspection of the uniformity of the grid bar arrangement is to perform X-ray photography close to the grid at the convergence distance of the focal-grid distance (parallel grid is 1M), and measure the film density without using an intensifying screen. It is enough to compare the standards.
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Author：Lillian