Which option will produce an increase in scatter radiation production?

Using a larger collimated field size is associated with an increase in scatter radiation production due to the larger volume of tissue being irradiated. When more tissue is exposed to radiation, there are more interactions between the x-ray photons and the atoms in that tissue. These interactions lead to scattering of the photons in various directions.

Scatter radiation is produced when x-rays interact with matter and deviate from their original path. A larger collimated field size means that the x-rays cover a broader area, which increases the probability of scatter occurring. This is particularly important in fluoroscopic procedures, where controlling scatter is essential for both image quality and radiation safety.

In contrast, options that involve using a lower kVp, a smaller collimated field size, or increased tissue compression typically lead to a decrease in scatter. Lowering the kVp reduces the energy of the x-rays, resulting in decreased penetration and subsequently less scatter. A smaller collimated field size limits the area being irradiated, hence reducing the volume of tissue exposed and, thereby, the potential for scatter. Increasing tissue compression helps to reduce the thickness of the tissue that is being imaged, which can also lower scatter production by reducing the amount of matter through which the x-rays must pass.