For the first time, physicists have watched a beam of positronium, a short‑lived atom made of an electron and its antimatter ...

First experimental observation of matter-wave diffraction in a short-lived electronpositron atom using a graphene-based ...

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Neutron diffraction and small-angle neutron scattering techniques can assess residual stress in and the microstructure of hydrocarbon pipelines. Neutron diffraction and small-angle neutron scattering ...