Impact-Parameter Dependent L-K Vacancy-Transfer in Collisions of Ni23+ with Ge Solid Targets
Using a particle-photon coincidence technique, we have measured the influence of the solid target preparation and thickness on the target K-vacancy production probability (PK(b)) in collisions of 3.6 MeV/u Ni23+ with Ge. The probabilities were measured as a function of the impact parameter b which is calculated from the projectile scattering angle using a screened Bohr-type potential. For target thicknesses varying by more than a factor of 100, no change in the shape of the PK(b) curve was found. Even the data obtained with implanted Ge targets (≈ 1 x 1016atoms cm-2), used for the first time in an L-K vacancy-transfer experiment, showed the typical solid target behaviour with the adiabatic peak being shifted towards smaller impact parameters.
M. Jager and M. Schulz and T. Kandler and A. Warczak and H. Brauning and A. Demian and M. Damrau and A. El-Sadek and K. Freitag and J. H. Ullrich and H. Schmidt-Bocking, "Impact-Parameter Dependent L-K Vacancy-Transfer in Collisions of Ni23+ with Ge Solid Targets," Nuclear Inst. and Methods in Physics Research, B, vol. 98, no. 1-4, pp. 488-491, Elsevier, May 1995.
The definitive version is available at http://dx.doi.org/10.1016/0168-583X(95)00173-5
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