Molecular fragmentation in heavy ion collisions
Time-of-flight (TOF) spectroscopy has been applied to the identification and study of ionic species produced in fast ion-molecule collisions. By optimizing the resolution of the TOF spectrometer employed, kinetic energies have been determined for the dissociation products of simple diatomic molecules ranging in charge from 1+ to 5+. Various spectral features are compared for monatomic and diatomic targets, and the characteristics of the fragmentation patterns for the complex molecule SF6 produced in He+ and Ar13+ collisions are examined.
KeywordsRecoil Energy Dissociation Product Internuclear Separation Acceleration Stage Charge Division
Unable to display preview. Download preview PDF.
- 1.See for example: H. D. Hagstrum and J. T. Tate, Phys. Rev. 15, 354 (1941); K. E. McCulloh, T. E. Sharp and H. M. Rosenstock, J. Chem. Phys. 42, 3501 (1965); J. H. D. Eland, F. Wort, P. Lablanquie and I. Nenner, Z. Phys. D 4, 31 (1986); W. Eberhardt, E. W. Plummer, C. T. Chen, R. Carr and W. K. Ford, Nucl. Instr. and Meth. A246, 825 (1986).Google Scholar
- 2.A. K. Edwards, R. M. Wood and M. F. Steuer, IEEE Trans. on Nucl. Sci. NS-26, 1099 (1979); R. M. Wood, A. K. Edwards and R. L. Ezell, Radiat. Phys. Chem. 26, 635 (1985).Google Scholar
- 3.H. Tawara, T. Tonuma, K. Baba, T. Matsuo, M. Kase, T. Kambara, H. Kumagai and I. Kohno, Nucl. Instr. and Meth. B23, 203 (1987).Google Scholar
- 4.R. J. Maurer, C. Can and R. L. Watson, Nucl. Instr. and Meth. (in press).Google Scholar
- 5.W. C. Wiley and I. H. McLaren, Rev. Sci. Instr. 26, 1150 (1955).Google Scholar
- 6.R. L. Watson and R. J. Maurer, Nucl. Instr. and Meth. (in press).Google Scholar
- 7.T. J. Gray, C. L. Cooke and E. Justiniano, Phys. Rev. A22, 849 (1980).Google Scholar
- 8.A. P. Hitchcock, C. E. Brion and M. J. Van der Wiel, J. Phys. B: Atom. Molec. Phys. 11, 3245 (1978).Google Scholar
- 9.A. P. Hitchcock and M. J. Van der Wiel, J. Phys. B: Atom. Molec. Phys. 12, 2153 (1979).Google Scholar