Correlation of Positron Age and Pair Momentum in Radiation-Induced Voids in Molybdenum
- 8 November 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 37 (19) , 1296-1298
- https://doi.org/10.1103/physrevlett.37.1296
Abstract
Dual-parameter measurements of the positron annihilation energy and time spectra in neutron-induced voids in Mo show that the mean lifetime does not decrease monotonically with increasing momentum of the center of mass of the positron-electron pair. At intermediate values of the momentum, there is a minimum in the mean lifetime which deepens with increasing void size; this effect may be due to positronium formation and trapping in the voids.Keywords
This publication has 12 references indexed in Scilit:
- A two-parameter measurement of the correlation of positron age with the momentum of the annihilating positron-electron pairApplied Physics A, 1976
- A positron annihilation study of the annealing of electron irradiated molybdenumJournal of Physics F: Metal Physics, 1976
- Changes in positron annihilation characteristics in molybdenum induced by neutron irradiationPhilosophical Magazine, 1975
- New evidence of positronium formation in neutron-irradiated molybdenum crystal containing voidsPhysics Letters A, 1975
- Positron-annihilation studies of voids in neutron-irradiated aluminum single crystalsPhysical Review B, 1974
- A positron annihilation study of the annealing of, and void formation in, neutron-irradiated molybdenumPhilosophical Magazine, 1974
- Fluence and temperature dependence of swelling in irradiated molybdenumJournal of Nuclear Materials, 1973
- Investigation of self-irradiation damage in plutonium by positronium annihilationJournal of Nuclear Materials, 1973
- Positrons in metals with voids, vacancies and surfacesSolid State Communications, 1973
- Correlation of Void Size and Positron Annihilation Characteristics in Neutron-irradiated MolybdenumNature, 1972