Radiobiology > Physical Processes > Quanta > Beta Particles

Energetic Quanta: Beta Particles

Beta Particles...

• Are smaller (1/2000 the size of proton) and less energetic than alpha particles
• Have negative charge
• Are created when a neutron transmutates into a proton
• Are emitted during decay of iodine-131, phosphorus-32, carbon-14, and strontium-90