Ro. Mazzei et Ed. Cabanillas, SUBMICROSCOPIC THEORY FOR THE CHARGE CHANGING PROCESS AND GENERALIZEDCHEMICAL ETCHING VELOCITY, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 74(3), 1993, pp. 405-413
We report three theoretical methods which yield, by means of a compute
r program, the theoretical submicroscopic and microscopic track profil
es corresponding to normal incidence ions for velocities of chemical a
ttack which vary with the position on the incidence axis (x) of the io
n and the perpendicular distance measured on the y axis. The program c
an simulate tracks for cases in which there are weak or sharp fluctuat
ions in the physical damage. These fluctuations may come statistical c
hanges in the damage or changes in the charge state of the incident io
n. We report here an alternative solution for problems identified in e
arlier studies (e.g. G. Somogyi and S.A. Slazay, Nucl. Instr. and Meth
. 109 (1973) 211 and R. Mazzei et al., Nucl. Instr. and Meth. B9 (1985
) 163) for the microscopic and submicroscopic tracks, respectively.