학술논문
Electron Ionization of Size-Selected Positively and Negatively Charged Helium Droplets
Document Type
article
Author
Source
Atoms, Vol 9, Iss 4, p 74 (2021)
Subject
Language
English
ISSN
2218-2004
Abstract
A beam of size-selected charged helium droplets was crossed with an electron beam, and the ion efficiency curves for the product droplets in all different charge states were recorded. We estimate that the selected helium droplets on their passage through the electron beam are hit by several hundred electrons which can interact with the individual He atoms of the droplets. Reaction channels corresponding to the removal or capture of up to eight electrons were identified, and in all cases, inelastic scattering and the formation of metastable helium played a significant role.