Multiple scattering and energy loss of fast heavy ions in thin solid targets

Simulation of angular and energy distributions for heavy evaporation residues using statistical model approximations and TRIM code

“…Generally, available data on measured HI angular distributions are mostly limited by half-widths of measured distributions. At the same time, the half-widths of MS angular distributions obtained in experiments (see, for example [28,29]) are in rather good agreement with the results of calculations [7]. Results are conveniently compared in reduced coordinates of a dimensionless target thickness t and half-width angle a 1=2 .…”

“…[30]) when experimental data are compared to the theory [7]. Some deviations from the theoretical dependence a 1=2 ¼ f ðtÞ [7] are probably observed for very heavy U ions [28] and for large reduced thicknesses (t 4 10 2 ) [29].…”

“…There is a question in a choice of the screening radius (see Refs. [28,29] and discussion in Ref. [30]) when experimental data are compared to the theory [7].…”

“…We also included the data derived from measured angular distributions shown in the figures of Refs. [28,31,32], which correspond to 1.2 MeV/amu of 238 U passed through a Bi target and to 20 Ne, 209 Bi and 40 Ar passed through thin carbon foils at the input velocity …”

“…We examined SRIM suitability for Table 1 ER data on the projectile-target combinations mentioned in Refs. [1][2][3][4][5][9][10][11][12]14,16,25] and HI data [28,31,32] on transmission through the targets of a different thickness.…”