Triply Differential Measurements of Single Ionization of Argon by 1-keV Positron and Electron Impact
Abstract
By establishing coincidences between target ions and scattered projectiles, and coincidences between target ions, scattered projectiles, and ejected electrons, triply differential cross-section (TDCS) information was generated in terms of projectile energy loss and scattering angles for interactions between 1-keV positrons and electrons and Ar atoms. The conversion of the raw experimental information to the TDCS is discussed. The single-ionization TDCS exhibits two distinguishable regions (lobes) where binary and recoil interactions can be described by two peaks. A comparison of the positron and electron impact data shows that the relative intensity of both binary and recoil interactions decreases exponentially as a function of the momentum transfer and is larger when ionization is induced by positron impact, when compared with electron impact.
Recommended Citation
J. Gavin et al., "Triply Differential Measurements of Single Ionization of Argon by 1-keV Positron and Electron Impact," Physical Review A, vol. 95, no. 6, article no. 062703, American Physical Society, Jun 2017.
The definitive version is available at https://doi.org/10.1103/PhysRevA.95.062703
Department(s)
Physics
International Standard Serial Number (ISSN)
2469-9934; 2469-9926
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2024 American Physical Society, All rights reserved.
Publication Date
14 Jun 2017
Comments
National Science Foundation, Grant IN-116916