Collision induced fragmentation of free sulfur clusters

Tiberiu Arion, Roman Flesch, Thomas Schlathoelter, Fresia Alvarado, Ronnie Hoekstra, Reinhard Morgenstern, Eckart Ruehl*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)

Abstract

Fragmentation of multiply charged sulfur clusters is investigated by ion-ion-coincidence spectroscopy. The experiments were performed at the electron cyclotron resonance (ECR) ion source at the KVI Groningen, where beams of Xeq+ (q = 5, 10, 15, 20) were produced. The Xeq+ ions were accelerated to kinetic energies of 8-10.q keV and collided with a beam of free sulfur clusters. Variable size sulfur clusters are prepared in a two-stage oven source, where the temperature of the oven was used to adjust the cluster size. Most experiments were performed using S-8, the dominant cluster at low oven temperature. Ion-ion-coincidence as well as mass spectra were recorded. Coincidences between singly charged atomic and molecular fragments were studied, where changes of product channels were observed as a function of charge state of the Xeq+ projectile. The mechanisms of cluster fragmentation are discussed. The results are compared to earlier experiments on core-excited sulfur clusters using soft X-rays. (C) 2008 Elsevier B.V. All rights reserved

Original languageEnglish
Pages (from-to)197-205
Number of pages9
JournalInternational Journal of Mass Spectrometry
Volume277
Issue number1-3
DOIs
Publication statusPublished - 1-Nov-2008

Keywords

  • Fragmentation
  • Highly charged ion
  • Fission
  • Sulfur cluster
  • MULTIPARTICLE COINCIDENCE EXPERIMENTS
  • MULTIPLE IONIZATION
  • CHARGE SEPARATION
  • COULOMB EXPLOSION
  • MASS-SPECTROMETRY
  • ARGON CLUSTERS
  • FINITE SYSTEMS
  • DISSOCIATION
  • DYNAMICS
  • FISSION

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