If a nuclear device has been detonated near your area, and you are considering the type of protective shielding you might need, you would use lead shielding for protection against which type of radiation?

Gamma rays

Explanation:

If a nuclear device is detonated near your area it emits Gamma Rays.

Gamma rays are one of the harmful rays which have a very high penetrating power.

Gamma rays can damage the cells of the human body.

Also gamma ray penetration can cause cancer.

Gamma rays affect unborn baby very adversely.