alpha ray

Alpha rays carry a positive charge, beta rays carry a negative charge and gamma rays are neutral.

A: Plutonium emits alpha rays which get lodged in people's bones and lungs after being inhaled and could become highly carcinogenic.

When the radioactive elements uranium or thorium break down, they emit alpha rays, which are helium nuclei.

Nuke this right-wing mish-mash with reactionary alpha rays until just before Election Day.

Marsden found that some alpha rays were scattered directly backward, even from a thin film of gold.

When a person closes their eyes, the alpha rays increase and the greater amplitude provides enough energy to turn on the light.