| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1683866 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2006 | 6 Pages |
Abstract
A new method of spectroscopy PsARS (positronium annihilation ratio spectroscopy) has been developed where ratios are determined of detected coincidence signals resulting from the three γ-ray decay of ortho-Ps to coincidence signals from the two γ decay of para-Ps and conversion of ortho-Ps into two 511 keV γ-rays. Some of the initial results obtained from using PsARS to investigate the formation of positronium in gases and the destruction of ortho-Ps at a surface are presented.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
W.E. Kauppila, J.J. Edwards, E.G. Miller, T.S. Stein, E. Surdutovich,