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physical object > natural object > particle > boson > carrier boson > photon > gamma ray > hard gamma ray |
hard gamma ray comparison table |
Subject | is a kind of | has definition |
---|---|---|
gamma ray | photon | Photon of very high frequency (wavelength shorter than a few tenths of an angstrom); the most energetic form of electromagnetic radiation, although there is no sharp boundary between γ-ray photon and an X-ray photon. Usually γ-ray photons come from the nucleus and X-ray photons come from the inner orbital electrons. Galactic γ-ray photons seem to originate primarily in the spiral arms. |
hard gamma ray | gamma ray |
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