Which of the following is a method of radiation protection?

Lead shielding is a well-established method of radiation protection, widely used in various settings, including medical, industrial, and research facilities. It involves the use of lead or lead-lined materials to absorb and block radiation, thereby reducing exposure to workers and the general public. Lead is particularly effective against gamma rays and X-rays, which are high-energy forms of radiation that can penetrate many materials. By employing lead shielding, facilities can create safer environments for personnel by minimizing the amount of radiation that reaches them.

In contrast, the other options do not constitute effective radiation protection methods. Personal incentives for working near radiation may motivate individuals but do not provide any safety or reduction of radiation exposure. Increased workload for workers also does not enhance safety; it may inadvertently lead to fatigue and decreased awareness of safety protocols, which can increase the risk of accidents or exposure. Hence, lead shielding remains the appropriate choice as a proven and effective method for protecting individuals from radiation hazards.