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Gamma ray

   Also found in: Dictionary/thesaurus, Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
gamma ray
n.
Electromagnetic radiation emitted from the nucleus of an atom by radioactive decay and having energies in a range from ten thousand (104) to ten million (107) electron volts.
Gamma ray
A high-energy photon, emitted by radioactive substances.
Mentioned in: Positron Emission Tomography
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Was GRB 060218 "unique" because it produced a burst of gamma rays or because its axis was pointed our way?
No direction home? by Wilson, Peter / Science News
As chunks of material collide, they produce gamma rays.
Spotlight on an exploding star by Sohn, Emily / Science News for Kids
The calibration and irradiation of instruments that measure x rays and gamma rays are performed in terms of the physical quantity: air-kerma.
NIST PUBLISHES SPECIAL PUBLICATION 250-58: CALIBRATION OF X-RAY AND ... by Journal of Research of the National Institute of Standards and Technology
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