Ionizing radiation - Wikipedia
https://en.wikipedia.org/wiki/Ionizing_radiationIonizing (or ionising) radiation consists of subatomic particles or electromagnetic waves that have sufficient energy to ionize atoms or molecules by detaching electrons from them. The particles generally travel at a speed that is greater than 1% of that of light, and the electromagnetic waves are on the high-energy portion of the electromagnetic spectrum. Gamma rays, X-rays, and the higher energy ultravioletpart of the electromagnetic spectrum are ioni…