Multiple ionization and fragmentation of the DNA base thymine by interaction with Cq+ ions

R Hoekstra, R Morgenstern, T Schlatholter

Research output: Contribution to journalArticleAcademicpeer-review

39 Citations (Scopus)

Abstract

Ionization and fragmentation of the DNA base thymine upon interaction with keV Cq+ ions (q = 1 - 6) has been studied. By means of time-of-flight spectrometry of two or more thymine fragments in coincidence with an ejected electron we could investigate particular dissociation channels by means of their associated kinetic-energy-release. The fragmentation dynamics are strongly influenced by the Cq+ charge state: for low q values mainly fragmentation due to direct collisions is observed. With increasing q, electron capture becomes more important. For larger q we could identify several Coulomb explosion channels, leading to very energetic fragments.

Original languageEnglish
Pages (from-to)161-164
Number of pages4
JournalEuropean Physical Journal D
Volume24
Issue number1-3
DOIs
Publication statusPublished - Jun-2003
Event11th International Symposium on Small Particles and Inorganic Clusters (ISSPIC 11) - , France
Duration: 9-Sep-200213-Sep-2002

Keywords

  • CHARGED IONS
  • COLLISIONS
  • ELECTRONS
  • C-60
  • PHOTOIONIZATION
  • DISSOCIATION
  • URACIL

Cite this