The interactions of high-energy, highly charged Xe ions with buckyballs

The interactions of high-energy, highly charged Xe ions with fullerenes

Ionization and fragmentation have been measured for C,, molecules bombarded in the vapor phase by Xe35’ and Xe”+ ions with energies in the range 420-625 MeV. The CM energies exceeded those used in previous studies by several orders of magnitude. We present the observed mass distribution of positively charged fragments together with a theoretical model indicating that the total interaction cross...

Energy dissipation of highly charged ions on Al oxide films.

Slow highly charged ions (HCIs) carry a large amount of potential energy that can be dissipated within femtoseconds upon interaction with a surface. HCI-insulator collisions result in high sputter yields and surface nanofeature creation due to strong coupling between the solid's electronic system and lattice. For HCIs interacting with Al oxide, combined experiments and theory indicate that defe...

Chlorination of charged buckyballs: reactions

The chlorination of singly and multiply charged C60 cations has been investigated with the selected-ion flow tube technique. Observations are reported for the reactions of C60 , C60 21 and C60 z31 with Cl2, CCl4, CDCl3, CH2Cl2 and CH3Cl at room temperature (295 6 2 K) in helium at a total pressure of 0.35 6 0.02 Torr. C60 z1 and C60 21 were observed not to chlorinate, or react in any other way,...

Charge Changing Collisions between Multiply Charged Xe and Pb Ions

Charge changing collisions between multiply charged ions in homonuclear collision systems are not only of basic interest as an ideal testing ground for theory [1]. As the beam intensities in modern accelerator and storage rings increase, intensity losses due to charge changing intrabeam collisions may become significant for lower charge states [2, 3]. Resulting mainly from betatron oscillations...

Radioactive decays of highly-charged ions