Which type of radiation is primarily concerned with skin contamination?

Beta radiation is primarily concerned with skin contamination due to its ability to penetrate the skin to a certain extent while being unable to penetrate deeply into body tissues. Beta particles, which are high-energy, high-speed electrons or positrons emitted by certain types of radioactive decay, can cause significant damage to the skin upon direct contact, leading to contamination.

The effects of beta radiation on the skin can result in cellular damage and irritation because these particles can transfer energy to skin cells effectively. This is particularly relevant in environments where beta-emitting materials are handled, as any contamination on the skin can lead to direct exposure and potential harmful effects.

In contrast, alpha radiation is much less penetrating and can be stopped by a simple piece of paper or skin. X-ray and gamma radiation, while more penetrating than beta radiation, typically pose a greater concern for internal exposure rather than skin contamination, as they can pass through the body without causing immediate damage to the skin. Therefore, when discussing skin contamination specifically, beta radiation is the primary concern due to its direct interaction with the skin.