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Those devices fired a beam of deuterons into a solid target laced with deuterium.—Adrian Cho, science.org, 18 July 2024 In the lab, Wu and Shaknov used it to bombard a sheet of copper with deuterons, generating an unstable isotope, Cu 64, as a source of positrons—the antimatter.—Michelle Frank, Scientific American, 13 Mar. 2023 The neutron collides with another deuteron in the lattice, imparting some of its own momentum to the deuteron.—Bayarbadrakh Baramsai, IEEE Spectrum, 27 Feb. 2022 Shooting the gold with a proton creates a circular pattern; shooting the gold with a deuteron (a proton-neutron pair) creates an elliptical pattern; and shooting the gold with a helium-3 atom (a proton-proton-neutron trio) creates a triangular pattern.—Jake Parks, Discover Magazine, 13 Dec. 2018
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