Glancing angle scattering and neutralization of a positron beam at metal surfaces
- 9 February 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 58 (6) , 595-598
- https://doi.org/10.1103/physrevlett.58.595
Abstract
We have formed an energetic (10–100 eV) beam of positronium (Ps) by scattering a well-collimated, small-diameter beam of 30–400 eV positrons off surfaces of Al(110) and clean and oxygen-coated Cu(100) at glancing angles of 6°–42° with respect to the surface. We determined the angular distribution (FWHM ≊20°) of the Ps beam and measured the relative Ps formation efficiency (3%–5%) as a function of incident positron beam energy and angle. Future uses of the Ps beam in atomic and surface physics will be discussed.Keywords
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