Lead shielding is a protective barrier made from lead that is used to block or reduce the penetration of radiation. It is commonly found in medical settings, such as X-ray rooms, where it helps protect patients and staff from harmful exposure during imaging procedures. The effectiveness of lead shielding depends on the thickness of the lead and the type of radiation being blocked. For example, gamma rays and X-rays require thicker lead compared to alpha or beta particles. This shielding is crucial in ensuring safety in environments where radiation is present.