Chemical Physics Letters, Vol.437, No.1-3, 17-22, 2007
Ion-imaging study of C-60 fragmentation
Time-resolved velocity-map imaging has been used to measure the kinetic energy of the ion fragments C-2n(+), (44 <= 2n <= 60) produced from C-60 excited by a nanosecond laser in the near UV. The time resolution of our imaging spectrometer allows measuring mass-resolved kinetic energy distributions. Measured average kinetic energies are compared to a statistical model based on detailed balance, taking into account the competition between C-2 emission and delayed ionization. Good agreement is achieved between experiment and model. A comparison with previously published measurements is presented. (c) 2007 Elsevier B.V. All rights reserved.