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 language | English |
|---|---|
| Pages (from-to) | 161-164 |
| Number of pages | 4 |
| Journal | European Physical Journal D |
| Volume | 24 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - Jun-2003 |
| Event | 11th International Symposium on Small Particles and Inorganic Clusters (ISSPIC 11) - , France Duration: 9-Sep-2002 → 13-Sep-2002 |
Keywords
- CHARGED IONS
- COLLISIONS
- ELECTRONS
- C-60
- PHOTOIONIZATION
- DISSOCIATION
- URACIL