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Ar8+ - C60 collisions at v = 0.4 a.u. electron capture and target fragmentation

1997; IOP Publishing; Volume: T73; Linguagem: Inglês

10.1088/0031-8949/1997/t73/094

1402-4896

J. Bernard, Li Chen, Alain Denis, J. Désesquelles, S. Martin,

Diamond and Carbon-based Materials Research

We report experiments concerning collisions of slow Ar8+ ions on a gaseous C60 target. We measured recoil ion mass spectra in coincidence with the final charge state analysed projectiles Ar7+, Ar6+, Ar5+ and Ar4+ successively and we were able to establish correlation between low energy fragments produced by break up of molecular C60r+ ions. We also measured the relative cross sections of multicaptured processes, especially the stabilization ratio of two electrons in double capture process which has been found Rs2 = 5%. The r-electron capture cross sections for r = 1-5 are compared with predictions of the C.B.M. barrier model.