Quick search Find article
Quick search
Find article

The connexion between positronium and the condensation of oxygen on silica and alumina powders

C E Haynes, P C Rice-Evans and F A R El Khangi

Show affiliations


Positronium annihilation has been related to the condensation of oxygen on silica and alumina powder. Doppler-broadening measurements on the 511 keV annihilation line, together with 3 gamma /2 gamma determinations, reveal the early stages of molecular adsorption. An application of the Langmuir model yields values of 1130 K and 1630 K for the respective adsorption energies.


PACS

78.70.Bj Positron annihilation

68.43.Mn Adsorption kinetics

Subjects

Condensed matter: electrical, magnetic and optical

Surfaces, interfaces and thin films

Dates

Issue 11 (14 March 1994)



Related review articles

What's this?
View review articles related to this research to gain an insight into the key trends in this subject area. Related review articles are selected based on PACS/MSC codes, and are no more than three years old.

  1. Extended x-ray absorption fine structure studies of the atomic structure of nanoparticles in different metallic matrices

View by subject




Export








Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.