Further studies on the formation of thermalized orthopositronium atoms in surfactant solutions

Zeev B. Alfassi; Hans J. Ache

doi:10.1021/j150663a031

Further studies on the formation of thermalized orthopositronium atoms in surfactant solutions

Zeev B. Alfassi, Hans J. Ache

Unit of Nuclear Engineering

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Abstract

The formation and annihilation of thermalized orthopositronium in micellar systems as a function of the concentration of the micelles has been analyzed for both aqueous and nonpolar (reversed micelles) solutions. The analysis is based on the assumption of the formation of two precursors of orthopositronium of which only one precursor is inhibited by the micelles. This assumption is verified in aqueous solutions whereas in nonpolar solvents the question remains whether this might be due to simultaneous enhancement and inhibition of positronium formation. The trend which the rate constants of inhibition in aqueous and nonpolar solvents exhibit is explained in terms of a "two-precursor" model.

Original language	English
Pages (from-to)	4347-4350
Number of pages	4
Journal	Journal of Physical Chemistry
Volume	88
Issue number	19
DOIs	https://doi.org/10.1021/j150663a031
State	Published - 1 Jan 1984

ASJC Scopus subject areas

General Engineering
Physical and Theoretical Chemistry

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AU - Ache, Hans J.

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N2 - The formation and annihilation of thermalized orthopositronium in micellar systems as a function of the concentration of the micelles has been analyzed for both aqueous and nonpolar (reversed micelles) solutions. The analysis is based on the assumption of the formation of two precursors of orthopositronium of which only one precursor is inhibited by the micelles. This assumption is verified in aqueous solutions whereas in nonpolar solvents the question remains whether this might be due to simultaneous enhancement and inhibition of positronium formation. The trend which the rate constants of inhibition in aqueous and nonpolar solvents exhibit is explained in terms of a "two-precursor" model.

AB - The formation and annihilation of thermalized orthopositronium in micellar systems as a function of the concentration of the micelles has been analyzed for both aqueous and nonpolar (reversed micelles) solutions. The analysis is based on the assumption of the formation of two precursors of orthopositronium of which only one precursor is inhibited by the micelles. This assumption is verified in aqueous solutions whereas in nonpolar solvents the question remains whether this might be due to simultaneous enhancement and inhibition of positronium formation. The trend which the rate constants of inhibition in aqueous and nonpolar solvents exhibit is explained in terms of a "two-precursor" model.

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ER -

Further studies on the formation of thermalized orthopositronium atoms in surfactant solutions

Abstract

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