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alpha rayA stream of alpha particles. Alpha rays rapidly dissipate their energy as they pass through materials, and are far less penetrating than beta particles and gamma rays.
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alpha raya stream of alpha particles.
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alpha rayA beam of Alpha Particles.
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alpha rayPreferred term: bit rot
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alpha ray<physics> A radioactive particle made up of two protons and two neutrons, these particles are created by the decay of a radioactive material or by nuclear bombardment, and they are the same as the nucleus of a helium-4 atom. (09 Oct 1997)
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