Gamma Knife Radiation

Gamma-Ray Amplification by Stimulated Emission of Radiation - Gamma-Ray Amplification by Stimulated Emission of Radiation (GRASER) describes a gamma-ray laser that operates between energy levels established by metastable isomeric transitions in the nucleus. Edward Teller established a now-defunct project to develop GRASER weaponry.

Electromagnetic radiation hazard - Electromagnetic radiation can be classified into ionizing radiation and non-ionizing radiation, based on whether it is capable of ionizing atoms and breaking chemical bonds. Ultraviolet and higher frequencies, such as X-rays or gamma rays are ionizing.

Hard radiation - Hard radiation is a term used to describe high-energy electromagnetic radiation, typically high energy X-rays or gamma rays. The term refers to the ability of the rays to penetrate a given thickness of material, typically a lead shield.

Gamma ray - Gamma rays (often denoted by the Greek letter gamma, γ) are an energetic form of electromagnetic radiation produced by radioactive decay or other nuclear or subatomic processes such as electron-positron annihilation.

gammakniferadiation

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