What is the main factor that affects the amount of scattered radiation produced?

The amount of scattered radiation produced during radiographic procedures is primarily influenced by the kilovoltage selected. Kilovoltage level controls the penetrating power of the X-rays generated. When a higher kilovoltage is used, the X-rays produced have greater energy, allowing them to penetrate tissues more effectively. This results in an increase in the likelihood that these X-rays will interact with matter and ultimately lead to the production of scattered radiation.

With higher energy X-rays, there is a higher probability of interactions with atoms in the tissues, which generates scatter. Conversely, if a lower kilovoltage is selected, the X-rays are less penetrating, resulting in less interaction and therefore lower levels of scattered radiation.

While other factors, such as tissue thickness, type of radiographic equipment, and distance from the radiation source, also play roles in the overall radiation exposure and scatter produced, the kilovoltage is the primary control mechanism that directly influences the energy and quantity of scatter generated during imaging procedures.