Size dependent fragmentation of argon clusters in the soft x-ray ionization regime.
Gisselbrecht, Mathieu LU
; Lindgren, Andreas
LU
; Burmeister, Florian
; Tchaplyguine, Maxim
LU
; Ohrwall, Gunnar
; Lundin, Magnus
LU
; de Brito, Arnaldo Naves
; Svensson, Svante
; Björneholm, Olle
and Ristinmaa Sörensen, Stacey
LU
(2008)
In Journal of Chemical Physics
128(4).
- Abstract
- Photofragmentation of argon clusters of average size ranging from 10 up to 1000 atoms is studied using soft x-ray radiation below the 2p threshold and multicoincidence mass spectroscopy technique. For small clusters (N=10), ionization induces fast fragmentation with neutral emission imparting a large amount of energy. While the primary dissociation takes place on a picosecond time scale, the fragments undergo slow degradation in the spectrometer on a microsecond time scale. For larger clusters (N>/=100) we believe that we observe the fragmentation pattern of multiply charged species on a time-scale which lasts a few hundred nanoseconds. The reason for these slower processes is the large number of neutral atoms which act as an efficient... (More)
- Photofragmentation of argon clusters of average size ranging from 10 up to 1000 atoms is studied using soft x-ray radiation below the 2p threshold and multicoincidence mass spectroscopy technique. For small clusters (N=10), ionization induces fast fragmentation with neutral emission imparting a large amount of energy. While the primary dissociation takes place on a picosecond time scale, the fragments undergo slow degradation in the spectrometer on a microsecond time scale. For larger clusters (N>/=100) we believe that we observe the fragmentation pattern of multiply charged species on a time-scale which lasts a few hundred nanoseconds. The reason for these slower processes is the large number of neutral atoms which act as an efficient cooling bath where the excess energy ("heat") dissipates among all degrees of freedom. Further degradation of the photoionic cluster in spectrometer then takes place on the microsecond time scale, similar to small clusters. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1042263
- author
- Gisselbrecht, Mathieu
LU
; Lindgren, Andreas
LU
; Burmeister, Florian
; Tchaplyguine, Maxim
LU
; Ohrwall, Gunnar
; Lundin, Magnus
LU
; de Brito, Arnaldo Naves
; Svensson, Svante
; Björneholm, Olle
and Ristinmaa Sörensen, Stacey
LU
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Chemical Physics
- volume
- 128
- issue
- 4
- article number
- 044317
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- pmid:18247959
- wos:000252821200040
- scopus:38849153646
- pmid:18247959
- ISSN
- 0021-9606
- DOI
- 10.1063/1.2821748
- language
- English
- LU publication?
- yes
- id
- 16681ef1-0e93-45a6-8f1a-acb2153df248 (old id 1042263)
- date added to LUP
- 2016-04-01 11:39:28
- date last changed
- 2022-01-26 08:16:52
@article{16681ef1-0e93-45a6-8f1a-acb2153df248,
abstract = {{Photofragmentation of argon clusters of average size ranging from 10 up to 1000 atoms is studied using soft x-ray radiation below the 2p threshold and multicoincidence mass spectroscopy technique. For small clusters (N=10), ionization induces fast fragmentation with neutral emission imparting a large amount of energy. While the primary dissociation takes place on a picosecond time scale, the fragments undergo slow degradation in the spectrometer on a microsecond time scale. For larger clusters (N>/=100) we believe that we observe the fragmentation pattern of multiply charged species on a time-scale which lasts a few hundred nanoseconds. The reason for these slower processes is the large number of neutral atoms which act as an efficient cooling bath where the excess energy ("heat") dissipates among all degrees of freedom. Further degradation of the photoionic cluster in spectrometer then takes place on the microsecond time scale, similar to small clusters.}},
author = {{Gisselbrecht, Mathieu and Lindgren, Andreas and Burmeister, Florian and Tchaplyguine, Maxim and Ohrwall, Gunnar and Lundin, Magnus and de Brito, Arnaldo Naves and Svensson, Svante and Björneholm, Olle and Ristinmaa Sörensen, Stacey}},
issn = {{0021-9606}},
language = {{eng}},
number = {{4}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Journal of Chemical Physics}},
title = {{Size dependent fragmentation of argon clusters in the soft x-ray ionization regime.}},
url = {{http://dx.doi.org/10.1063/1.2821748}},
doi = {{10.1063/1.2821748}},
volume = {{128}},
year = {{2008}},
}