proton-induced x-ray emission


proton-induced x-ray emission

[′prō‚tän in‚düst ′eks‚rā i‚mish·ən] (analytical chemistry) A method of elemental analysis in which the energy of the characteristic x-rays emitted when a sample is bombarded with a beam of energetic protons is used to identify the elements present in the sample. Abbreviated PIXE.