Physical Review Letters · 1975 · 19 citations · 3 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsElectronic MaterialsNuclear PhysicsAlpha DecayMetalsNuclear DecayPhotoelectron SpectroscopyRadioactive DecayAnnihilation DecaysDelayed Coincidence AnalysisElectron-positron CollisionsExponential DecayFull Width At Half MaximumMaterial Decay KineticsNuclear LifetimesSignal-to-background Ratio
The positron lifetimes in annealed metals reported recently by MacKenzie, Jackman, and Thrane range from 0.1 to 0.4 nsec and exhibit systematic trends with the atomic number. These observations are shown to be related predominantly to the dynamic screening of the positron charge by the metal electron gas.
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Positron Annihilation in Metals
P. Bhattacharyya, K. S. Singwi · Physical Review Letters · 1972 · 78 citations