Which of the following factors does NOT contribute to radiation protection?

In the context of radiation protection, increasing exposure time is counterproductive, as it leads to a greater dose of radiation being received. Radiation exposure is cumulative, meaning that the longer an individual is exposed to radiation, the higher the potential for harmful effects. Therefore, increasing exposure time does not contribute to protecting individuals from radiation; rather, it increases the associated risks.

On the other hand, factors like collimation of beams, use of lead shields, and increasing distance from the radiation source are all established practices that enhance safety. Collimating beams directs the radiation more precisely to the area of interest and reduces scatter, which minimizes exposure to surrounding tissues. Lead shields act as barriers to absorb radiation and protect workers and patients from unnecessary exposure. Lastly, increasing distance from the radiation source leverages the inverse square law, which states that radiation intensity decreases with distance. By maintaining or increasing distance, individuals can significantly reduce their exposure level. These practices are foundational to effective radiation safety measures.