Experimental studies of positrons scattering in gases
- 1 June 1985
- journal article
- review article
- Published by IOP Publishing in Reports on Progress in Physics
- Vol. 48 (6) , 737-793
- https://doi.org/10.1088/0034-4885/48/6/001
Abstract
The current status of certain aspects of positron scattering in gases is reviewed. A brief resume of the experimental techniques used in this field is also given. Results for total scattering cross sections in a number of gases are presented along with a detailed discussion of potential systematic errors which can affect such measurements. Important features of the cross sections are pointed out and comparisons are made with electron scattering data. Results from experiments which go beyond total cross section determinations are discussed. Emphasis is placed upon recent measurements of positronium formation cross sections. Recent positron lifetime studies in dense gases are reviewed. The subjects covered include positron annihilation in clusters, ortho-positronium annihilation in bubbles and positronium formation in spurs.Keywords
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