Scattering of low-energy positrons by helium and neon atoms
- 1 July 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 20 (1), 145-153
- https://doi.org/10.1103/physreva.20.145
Abstract
Total cross sections for the scattering of 2-50 eV positrons by helium and neon atoms have been measured using the time-of-flight technique, and are compared with recent experimental and theoretical results. The measurement of positron energies and the flight path length is described and possible sources of systematic errors, including the effects of small-angle forward scattering, are fully discussed.Keywords
This publication has 26 references indexed in Scilit:
- Measurements of total scattering cross sections for low-energy positrons and electrons colliding with helium and neon atomsPhysical Review A, 1978
- Transmission experiment for measuring total positron–atom collision cross sections in a curved, axial magnetic fieldReview of Scientific Instruments, 1977
- Positron work functions in transition metalsSolid State Communications, 1976
- Measurement of the Vacuum Decay Rate of OrthopositroniumPhysical Review Letters, 1976
- Direct Observation of a Ramsauer-Townsend Effect in Positron-Argon CollisionsPhysical Review Letters, 1976
- Near-thermal energy width of moderated high energy positronsPhysics Letters A, 1975
- Observations of Positronium Lyman-RadiationPhysical Review Letters, 1975
- The analysis of data obtained with time to amplitude converter and multichannel analyser systemsApplied Physics A, 1974
- Energy Distribution of Slow Positrons Diffusing from Incomplete-Shell Transition MetalsPhysical Review Letters, 1974
- A method of improving the statistical accuracy in lifetime measurements on positrons annihilating in gasesJournal of Physics E: Scientific Instruments, 1972