Beta radiation consists of particles (high-speed electrons) given off by some fallout.

IT has long been known that high-speed electrons trapped in orbit by the Earth's magnetic field pose a hazard to the electronic devices aboard spacecraft.

Thus, gamma photoelectric effect electron emission may also cause high-speed electrons to be emitted from radioactive atoms without beta decay.

For example, energy from a high-speed electron in a TV tube is absorbed by the phosphors that make up the pixels.

The other 2 percent were high-speed electrons.

Beta particles are high-energy, high-speed electrons or positrons emitted by certain types of radioactive nuclei such as potassium-40.

Beta particle- High-energy, high-speed electrons or positrons emitted by certain types of radioactive nuclei.

When excited by high-speed electrons, the phosphor gives off light, typically white but other colors are also used in certain circumstances.

When you see a picture on a TV screen, what you are seeing is phosphor atoms, excited by high-speed electrons, emitting different colors of light.

The stream of high-speed electrons impinging upon the energy beam fluoresced into ultra-spicules of intense light.