How does the X-ray grid ratio affect image contrast and scatter radiation reduction?

The X-ray grid ratio has a direct influence on image contrast and scatter radiation reduction.

Image Contrast: The grid ratio impacts image contrast by reducing the amount of scattered radiation that reaches the X-ray detector. Scattered radiation occurs when X-ray photons interact with patient tissues and deviate from their original path. This scattered radiation contributes to image fog and reduces contrast. A higher grid ratio helps to absorb more scattered radiation, allowing only the primary X-ray photons to reach the detector. As a result, the overall contrast of the image is improved.

Scatter Radiation Reduction: The main purpose of an X-ray grid is to minimize scatter radiation. Scatter radiation is produced when X-ray photons interact with the patient’s body and change direction. A higher grid ratio leads to better scatter radiation reduction because it has narrower lead strips. The narrow lead strips absorb and block a higher percentage of scattered radiation, preventing it from reaching the detector. This results in a cleaner image with less scatter and improved overall image quality.

However, it is essential to note that a higher grid ratio also decreases the amount of primary X-ray photons reaching the detector. This reduction in primary radiation can affect image brightness and may require adjustments in exposure factors to compensate for the grid’s absorption properties.

In summary, a higher grid ratio improves image contrast by reducing the amount of scattered radiation reaching the detector. Additionally, it enhances scatter radiation reduction by effectively absorbing scattered photons. However, it is necessary to consider the balance between scatter reduction and the potential impact on image brightness when selecting the appropriate grid ratio. Whatsapp:+86 18953679166. Email: service@newheek.com

Author：X Ray Grids Maker