Auger electron-ion coincidence studies to probe molecular dynamics
(2004) In Journal of Electron Spectroscopy and Related Phenomena 141(2-3). p.171-181- Abstract
- Electron analysis combined with ion mass spectrometry is shown to be a unique tool to understand fragmentation dynamics of core-excited molecules. This article describes in detail a new setup devoted to energy and angle correlations measurements between the emitted particles resulting from inner-shell ionization or excitation. The data collection system is based on a pair of position sensitive detectors mounted behind a double toroidal electron analyzer and a short time-of-flight ion spectrometer. Because all relevant information results in time measurements, a natural synchronization in the events recording is obtained. The optimized geometry for the ion extraction allows spatial focusing for the ion trajectories by means of inhomogeneous... (More)
- Electron analysis combined with ion mass spectrometry is shown to be a unique tool to understand fragmentation dynamics of core-excited molecules. This article describes in detail a new setup devoted to energy and angle correlations measurements between the emitted particles resulting from inner-shell ionization or excitation. The data collection system is based on a pair of position sensitive detectors mounted behind a double toroidal electron analyzer and a short time-of-flight ion spectrometer. Because all relevant information results in time measurements, a natural synchronization in the events recording is obtained. The optimized geometry for the ion extraction allows spatial focusing for the ion trajectories by means of inhomogeneous extraction fields while preserving the time focusing. The N-2 molecule has been used for full characterization of the setup whereas the CO2 Molecule illustrates the role of the intermediate resonant state in controlling the final dissociation pattern. The bending mode excitation is shown to emphasize the O+ production, and the ion kinetic energy distribution is rationalized through an impulsive model. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/259624
- author
- Céolin, Denis LU ; Miron, C ; Simon, M and Morin, P
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- field, pulsed extraction, coincidence technique, energy and angle correlations, double toroidal electron spectrometer, position sensitive detection, inhomogeneous field, Auger electron, ion, N-2, CO2
- in
- Journal of Electron Spectroscopy and Related Phenomena
- volume
- 141
- issue
- 2-3
- pages
- 171 - 181
- publisher
- Elsevier
- external identifiers
-
- wos:000225473400011
- scopus:8344257170
- ISSN
- 0368-2048
- DOI
- 10.1016/j.elspec.2004.06.014
- language
- English
- LU publication?
- yes
- id
- 30b60693-0d1c-41f3-b52e-4a6507a80e82 (old id 259624)
- date added to LUP
- 2016-04-01 17:00:13
- date last changed
- 2022-01-28 23:39:23
@article{30b60693-0d1c-41f3-b52e-4a6507a80e82,
abstract = {{Electron analysis combined with ion mass spectrometry is shown to be a unique tool to understand fragmentation dynamics of core-excited molecules. This article describes in detail a new setup devoted to energy and angle correlations measurements between the emitted particles resulting from inner-shell ionization or excitation. The data collection system is based on a pair of position sensitive detectors mounted behind a double toroidal electron analyzer and a short time-of-flight ion spectrometer. Because all relevant information results in time measurements, a natural synchronization in the events recording is obtained. The optimized geometry for the ion extraction allows spatial focusing for the ion trajectories by means of inhomogeneous extraction fields while preserving the time focusing. The N-2 molecule has been used for full characterization of the setup whereas the CO2 Molecule illustrates the role of the intermediate resonant state in controlling the final dissociation pattern. The bending mode excitation is shown to emphasize the O+ production, and the ion kinetic energy distribution is rationalized through an impulsive model.}},
author = {{Céolin, Denis and Miron, C and Simon, M and Morin, P}},
issn = {{0368-2048}},
keywords = {{field; pulsed extraction; coincidence technique; energy and angle correlations; double toroidal electron spectrometer; position sensitive detection; inhomogeneous field; Auger electron; ion; N-2; CO2}},
language = {{eng}},
number = {{2-3}},
pages = {{171--181}},
publisher = {{Elsevier}},
series = {{Journal of Electron Spectroscopy and Related Phenomena}},
title = {{Auger electron-ion coincidence studies to probe molecular dynamics}},
url = {{http://dx.doi.org/10.1016/j.elspec.2004.06.014}},
doi = {{10.1016/j.elspec.2004.06.014}},
volume = {{141}},
year = {{2004}},
}