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Electron impact induced anion production in acetylene

Szymańska, Ewelina; Čadež, Iztok; Krishnakumar, E. and Mason, Nigel J. (2014). Electron impact induced anion production in acetylene. Physical Chemistry Chemical Physics, 16(8) pp. 3425–3432.

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A detailed experimental investigation of electron induced anion production in acetylene, C2H2, in the energy range between 1 and 90 eV is presented. The anions are formed by two processes in this energy range: dissociative electron attachment (DEA) and dipolar dissociation (DD). DEA in C2H2 is found to lead to the formation of H− and C2−/C2H− through excitation of resonances in the electron energy range 1–15 eV. These anionic fragments are formed with super thermal kinetic energy and reveal no anisotropy in the angular distributions. DD in C2H2 leads to the formation of H−, C−/CH− and C2−/C2H− with threshold energies of 15.7, 20.0 and 16.5 eV respectively. The measured anion yields have been used to calculate anion production rates for H−, C−/CH− and C2−/C2H− in Titan's ionosphere.

Item Type: Journal Item
Copyright Holders: 2014 the Owner Societies
ISSN: 1463-9084
Project Funding Details:
Funded Project NameProject IDFunding Body
7th Framework Programme238258EC
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Research Group: Physics
Item ID: 40360
Depositing User: Ewelina Szymanska-Skolimowska
Date Deposited: 10 Jun 2014 11:03
Last Modified: 07 Dec 2018 10:23
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