Abstract
By combining two independent positron annihilation techniques, it is shown that, in polar solvents, the halogenated compounds inhibit positronium formation by quasi-free electron scavenging followed by positron capture. This sequence occurs before halide detachment intervenes. Studying mixtures of solutes allows both to confirm the existence of these successive reactions and to stress the influence, towards positronium formation, of the trap depth for the electron captured by nitrates, whether ion associated or not, in methanol. Finally, experiments in the presence of a magnetic field allow to conclude that the formed positronium is very rapidly thermalized, then localised in a potential well in the liquids, the so-called bubble.
Citation Formats
Didierjean, F.
Competitive and successive reactions in the position cluster and energy state of positronium in the liquids; Reactions competitives et successives dans la grappe du positon et etat energetique du positonium dans les liquides.
France: N. p.,
1991.
Web.
Didierjean, F.
Competitive and successive reactions in the position cluster and energy state of positronium in the liquids; Reactions competitives et successives dans la grappe du positon et etat energetique du positonium dans les liquides.
France.
Didierjean, F.
1991.
"Competitive and successive reactions in the position cluster and energy state of positronium in the liquids; Reactions competitives et successives dans la grappe du positon et etat energetique du positonium dans les liquides."
France.
@misc{etde_10149546,
title = {Competitive and successive reactions in the position cluster and energy state of positronium in the liquids; Reactions competitives et successives dans la grappe du positon et etat energetique du positonium dans les liquides}
author = {Didierjean, F}
abstractNote = {By combining two independent positron annihilation techniques, it is shown that, in polar solvents, the halogenated compounds inhibit positronium formation by quasi-free electron scavenging followed by positron capture. This sequence occurs before halide detachment intervenes. Studying mixtures of solutes allows both to confirm the existence of these successive reactions and to stress the influence, towards positronium formation, of the trap depth for the electron captured by nitrates, whether ion associated or not, in methanol. Finally, experiments in the presence of a magnetic field allow to conclude that the formed positronium is very rapidly thermalized, then localised in a potential well in the liquids, the so-called bubble.}
place = {France}
year = {1991}
month = {Oct}
}
title = {Competitive and successive reactions in the position cluster and energy state of positronium in the liquids; Reactions competitives et successives dans la grappe du positon et etat energetique du positonium dans les liquides}
author = {Didierjean, F}
abstractNote = {By combining two independent positron annihilation techniques, it is shown that, in polar solvents, the halogenated compounds inhibit positronium formation by quasi-free electron scavenging followed by positron capture. This sequence occurs before halide detachment intervenes. Studying mixtures of solutes allows both to confirm the existence of these successive reactions and to stress the influence, towards positronium formation, of the trap depth for the electron captured by nitrates, whether ion associated or not, in methanol. Finally, experiments in the presence of a magnetic field allow to conclude that the formed positronium is very rapidly thermalized, then localised in a potential well in the liquids, the so-called bubble.}
place = {France}
year = {1991}
month = {Oct}
}