O-PS ANNIHILATION PARAMETERS IN PT, 5-PERCENT PT-ON-CHARCOAL, PD AND 5-PERCENT PD-ON-CHARCOAL POWDERS

Authors
CIOTTONE JL LANDER F LECLAIR D
Citation
Jl. Ciottone et al., O-PS ANNIHILATION PARAMETERS IN PT, 5-PERCENT PT-ON-CHARCOAL, PD AND 5-PERCENT PD-ON-CHARCOAL POWDERS, Journal de physique. IV, 3(C4), 1993, pp. 185-191
Citations number
7
Categorie Soggetti
Physics
Journal title
Journal de physique. IV → ACNP
ISSN journal
11554339
Volume
3
Issue
C4
Year of publication
1993
Pages
185 - 191
Database
ISI
SICI code
1155-4339(1993)3:C4<185:OAPIP5>2.0.ZU;2-4
Abstract
o-Ps intensities and lifetimes show very good correlation to surface a rea and cavity size, respectively, of surface-active materials. Tau3 a nd I3 values for Pt, 5% Pt-on-charcoal, Pd and 5% Pd-on-charcoal powde rs are presented. Surface area and cavity size are discussed and inter preted in terms of previously determined o-Ps lifetimes and intensitie s in abs. EtOH/pentene isomer/Pt or Pd mixtures.