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Gamma rays

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Gamma rays
Short wavelength, high energy electromagnetic radiation emitted by radioactive substances.
Mentioned in: Radiation Therapy

gamma rays,
n an electromagnetic radiation of short wavelength emitted by the nucleus of an atom during a nuclear reaction. Composed of high-energy photons, gamma rays lack mass and an electric charge and travel at the speed of light.

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Was GRB 060218 "unique" because it produced a burst of gamma rays or because its axis was pointed our way?
As chunks of material collide, they produce gamma rays.
2 MeV gamma rays from the capture reaction are detected in an array of CsI(Tl) scintillators read out by vacuum photodiodes operated in current mode.
 
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