The attachment of slow electrons in carbon dioxide-Reference-Cited by-同舟云学术

The attachment of slow electrons in carbon dioxide

Published:1960-02-09 Issue:1277 Volume:254 Page:229-241
ISSN:0080-4630
Container-title:Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences
language:en
Short-container-title:Proc. R. Soc. Lond. A

Author:

Abstract

The formation of positive and negative ions in carbon dioxide has been investigated by means of a Lozier apparatus. The negative ion process was interpreted as CO 2 + e → CO( X 1 Σ + ) + O - (2 P 0 ). The (peak) cross-section for electron attachm ent was found to be 5·07 ± 0·5 x 10 -19 cm 2 at 7·8 eV, and the ionization cross-section reached a m axim um value of 6·80 x 10 -16 cm 2 at 85 eV. Measurements of the electron affinity of oxygen by the normal electron impact method yielded a value of 1·6 ± 0·2 eV for O - ions formed with an initial kinetic energy of 1·8 eV. It is shown that this apparent value of electron affinity must be corrected, because of the initial kinetic energy of the ions and the energy spread of the source electrons, and then yields a value of 1·2 ± 0·3 eV.

Publisher

The Royal Society

Subject

Pharmacology (medical)

Link

https://royalsocietypublishing.org/doi/pdf/10.1098/rspa.1960.0017

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