Question

What results from utilizing a lower ratio grid?

A. Higher contrast and greater latitude in central ray (CR) positioning.
B. Higher contrast and less latitude in central ray (CR) positioning.
C. Lower contrast, but greater error margin in central ray (CR) placement.
D. Lower contrast, but less leeway in positioning the central ray (CR) to the grid.

Answer 1

Utilizing a lower ratio grid results in higher contrast and less leeway in positioning the central ray (CR) to the grid.

Step-by-step explanation:

Utilizing a lower ratio grid results in higher contrast and less leeway in positioning the central ray (CR) to the grid. The lower ratio grid allows more primary radiation to pass through, resulting in a lower amount of scatter radiation being absorbed by the grid. This higher contrast can enhance the visibility of details in the radiographic image. However, the reduced grid ratio also means there is less leeway in positioning the CR to avoid grid cutoff.