As you move away from an x-ray source, how does the intensity of radiation change?

As you move away from an x-ray source, the intensity of radiation decreases significantly due to the inverse square law. This principle states that the intensity of radiation is inversely proportional to the square of the distance from the source. In practical terms, this means that if you double the distance you are from the x-ray source, the intensity of the radiation you are exposed to is reduced to one-fourth of its original value.

This relationship highlights the importance of maintaining a safe distance from radiation sources in dental and medical settings to minimize exposure. Understanding this concept is crucial for ensuring the safety of both healthcare providers and patients, as well as adhering to radiation protection regulations. It emphasizes the effectiveness of distance as a protective measure against radiation exposure, reinforcing that greater distances lead to lower radiation doses received.