Positron Lifetime Spectra in the Noble Gases
- 12 April 1965
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 138 (1B) , B216-B218
- https://doi.org/10.1103/PhysRev.138.B216
Abstract
Positron lifetime spectra have been measured in helium, neon, argon, krypton, and xenon at pressures of a few atmospheres. The annihilation rates of the free positrons are found to be time-dependent. Physical reasons, based on the strong correlation between energy and age of a positron, are suggested for this time dependence. Three parameters describing the main features of the free-positron spectrum are separated from the data, for each gas, and tabulated.Keywords
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