Newson, DM;
Kadokura, R;
Brawley, SJ;
Shipman, M;
Laricchia, G;
(2023)
Statistical nature of secondary electron emission.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
, 536
pp. 119-125.
10.1016/j.nimb.2023.01.008.
Preview |
Text
Newson et al_1-s2.0-S0168583X23000174-main.pdf Download (2MB) | Preview |
Spreadsheet
Newson et al_UCL Discovery - Statistical Nature of Secondary Electron Emission - 2023.xlsx Download (990kB) |
Abstract
The energy-dependence of the secondary electron yield by electron impact on clean materials is shown, through comparisons with both experimental data and previous semi-empirical models, to be described well by a log-normal distribution. The maximum yield and corresponding energy are calculated in terms of the fit parameters. The function also agrees with the ‘universal curve’ obtained by expressing the experimental data in terms of the position and magnitude of maximum yield. The positron- and ion-induced secondary electron yields also exhibit a log-normal dependence and this is used to extend their energy ranges without prior knowledge of the position and magnitude of their maxima. In addition to their intrinsic usefulness, the results provide further support for the statistical description of inelastic processes advanced by Laricchia et al. (2018).
Type: | Article |
---|---|
Title: | Statistical nature of secondary electron emission |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1016/j.nimb.2023.01.008 |
Publisher version: | https://doi.org/10.1016/j.nimb.2023.01.008 |
Language: | English |
Additional information: | Copyright © 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
Keywords: | Secondary electron, Energy-dependence, Statistical description, Log-normal |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
URI: | https://discovery.ucl.ac.uk/id/eprint/10163263 |
Archive Staff Only
View Item |