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Interaction of Low Energy Positrons with Gaseous Atoms and Molecules

  • P. G. Coleman
  • T. C. Griffith
  • G. R. Heyland
  • T. L. Killeen

Abstract

There has been substantial progress in the study of positron interactions with atoms and molecules in the last two years. Reliable measurements of the total cross-sections1–8 for positrons of controllable energy in the range 2–400 eV in various gases are now available and these can be compared with some recent theoretical calculations especially in the case of helium. Below 2 eV improvements in the technique of measuring positron lifetime spectra9,10 are yielding new information on the behaviour of thermalized positrons in various gases and gaseous mixtures at different pressures.

Keywords

Positron Lifetime Positron Energy Shoulder Width Lifetime Spectrum Flight Tube 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1975

Authors and Affiliations

  • P. G. Coleman
    • 1
  • T. C. Griffith
    • 1
  • G. R. Heyland
    • 1
  • T. L. Killeen
    • 1
  1. 1.Department of Physics & AstronomyUniversity College LondonLondon W C 1UK

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