Anti-scatter Circular Grid (for 9” Image Intensifier)

Ref. L7

The anti-scatter grid is intended to enhance X-ray image quality by eliminating parasitic scattered radiation coming mainly from thick parts of the patient’s body. It is composed of a great number of parallel thin lead strips separated by a radiolucent material. It is placed between the patient and the X-ray film or between the patient and the image intensifier. For more technical details, we suggest a visit to the following site.

Grids may have different specifications. From the embossed specifications on the edge of the grid we read:

• N = 44 (lead strips per centimeter)
• r = 10 (the ratio between the height of the lead strips and the width of the radiolucent
• space between the strips).
• Fo = 100 (it means the grid is focalized for a distance of 100cms between the X-ray source and the grid.

The diameter of this grid measures 10” and totally covers the input phosphor of the 9” image intensifier. On this grid, as well as on all focalized grids, the side facing the X-ray source is clearly marked.