Which principle is used to reduce exposure by increasing distance from the radiation source?

Study for the Bioenvironmental Engineering (BEE) Block 6 Exam. Utilize flashcards and multiple choice questions, with hints and explanations for each question. Prepare for your exam with confidence!

Multiple Choice

Which principle is used to reduce exposure by increasing distance from the radiation source?

Explanation:
Distance from the radiation source is the most effective way to lower exposure because radiation energy spreads out as it travels. This follows the inverse square principle: the intensity at a distance r is proportional to 1/r^2. So, doubling the distance cuts exposure to one-quarter, and tripling distance reduces it to one-ninth, and so on. This makes increasing separation the strongest single protective measure when feasible. Time in the area and shielding/PPE also reduce dose, but they work differently; distance directly reduces the amount of radiation reaching you by spreading it over a larger area.

Distance from the radiation source is the most effective way to lower exposure because radiation energy spreads out as it travels. This follows the inverse square principle: the intensity at a distance r is proportional to 1/r^2. So, doubling the distance cuts exposure to one-quarter, and tripling distance reduces it to one-ninth, and so on. This makes increasing separation the strongest single protective measure when feasible. Time in the area and shielding/PPE also reduce dose, but they work differently; distance directly reduces the amount of radiation reaching you by spreading it over a larger area.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy