Definition

Noun: - A type of ionizing radiation consisting of alpha particles: Alpha radiation is a stream of fast-moving alpha particles, which are positively charged particles identical to helium-4 nuclei (two protons and two neutrons), emitted by certain radioactive materials during their decay.

Usage

Alpha radiation is a scientific term used primarily in physics, chemistry, and nuclear engineering to describe this specific form of particulate radiation. - It is emitted during the radioactive decay of heavy, unstable nuclei like uranium or radium. - Due to its large mass and charge, it has very low penetration power but high ionizing power.

Examples

• Noun:
  • The geiger counter detected alpha radiation from the sample of uranium ore.
  • Alpha radiation cannot penetrate a sheet of paper or the outer layer of human skin.
  • The experiment measured the energy spectrum of the emitted alpha radiation.

Advanced Usage

• "Alpha radiation hazard": Refers to the danger posed by alpha-emitting materials, especially if they are inhaled or ingested, as they can cause significant damage to internal tissues.
  • Strict safety protocols are in place for handling materials that pose an alpha radiation hazard.

Variants and Related Words

• Alpha particle (n): The individual particle that constitutes alpha radiation.
  • An alpha particle is composed of two protons and two neutrons.
• Alpha decay (n): The specific radioactive decay process that produces alpha radiation.
  • Uranium-238 undergoes alpha decay to become thorium-234.
• Alpha emitter (n): A substance that emits alpha radiation.
  • Polonium-210 is a potent alpha emitter.

Synonyms

• Alpha rays (an older, less precise term).
• α-radiation (symbolic notation).

Related Phrases

• "Shielding against alpha radiation": The use of materials to block alpha particles.
  • Shielding against alpha radiation is relatively simple due to its low penetration power.
• "Alpha radiation therapy": A very specialized and limited form of cancer treatment using alpha-emitting isotopes.
  • Targeted alpha radiation therapy is being researched for treating microscopic cancers.

Noun

1. the radiation of alpha particles during radioactive decay