Which method is effective for reducing radiation exposure in workers?

Using appropriate shielding and maximizing distance from sources is a fundamental principle in radiation safety that effectively reduces radiation exposure for workers. Shielding involves placing barriers between the radiation source and the individual, which can greatly attenuate the intensity of radiation, depending on the material used. Materials such as lead, concrete, or specialized plastics can absorb or deflect radiation, thereby limiting the amount that reaches the worker.

Maximizing distance refers to increasing the distance between the worker and the radiation source. According to the inverse square law, the intensity of radiation decreases with the square of the distance from the source. This means that even a small increase in distance can lead to a significant reduction in exposure. For example, if a worker moves twice as far away from a radiation source, the radiation exposure can be reduced to a quarter of the original intensity.

Together, these methods are part of the "time, distance, and shielding" principles that cornerstone radiation protection strategies. They play a crucial role in minimizing risks and ensuring the safety of workers who are in environments where they may be exposed to radiation.