POSITRONIUM FORMATION FROM SILVER

Authors
POULSEN MR CHARLTON M DEUTCH BI JORGENSEN LV LARICCHIA G
Citation
Mr. Poulsen et al., POSITRONIUM FORMATION FROM SILVER, Hyperfine interactions, 76(1-4), 1993, pp. 309-317
Citations number
28
Categorie Soggetti
Physics, Atomic, Molecular & Chemical","Physics, Nuclear","Physics, Condensed Matter
Journal title
Hyperfine interactions → ACNP
ISSN journal
03043843
Volume
76
Issue
1-4
Year of publication
1993
Pages
309 - 317
Database
ISI
SICI code
0304-3843(1993)76:1-4<309:PFFS>2.0.ZU;2-F
Abstract
Characterization of a positronium (Ps) gas target to be used for the c harge conjugate reaction for antihydrogen formation [1], namely proton + Ps-atom --> hydrogen + positron, has been performed [2-4]. In the a bove collision the Ps target utilised is produced efficiently on the t ransmission side of a hot thin (1900 angstrom) Ag(100) foil with 12% e fficiency at 800 K foil temperature, with a mean velocity of thermally activated Ps of 1.2 x 10(5) m/s and with a maximum kinetic energy of prompt emitted Ps of 1.5 +/- 0.2 eV.