Radiation Knowledge: What Is Ionizing Radiation ?

When certain atoms disintegrate, they release a type of energy called ionizing radiation. This energy can travel as either electromagnetic waves (i.e. gamma or
X-rays) or as particles (i.e. alpha, beta or neutrons).

The atoms that emit radiation are called radionuclides; e.g., radioactive iodine, caesium, and plutonium.

Ionizing radiation is an essential tool for diagnosis and treatment in medicine, that must be used with rigorous attention to safety.

Source: WHO


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