Alpha ray

{
  "id": "MLC-T-MET-003455",
  "term": "Alpha ray",
  "field": "Meteorology and atmospheric science",
  "definition": "A stream of alpha particles, which are helium nuclei (two protons and two neutrons), emitted during the radioactive decay of certain unstable isotopes. These rays are highly ionizing but have a very short range in air, typically traveling only a few centimeters. Alpha rays are a component of natural background radiation in the atmosphere.",
  "synonyms": [
    "alpha radiation"
  ],
  "url": "https://mlchart.com/terminology/meteorology/alpha-ray/"
}