Abstract
Using gaseous sources of111InCl and111InI with densities between 1.0·1017 cm−3 and 4.4·1019 cm−3 the perturbation of the 171.3–245.4 keVγ-γ cascade was measured as a function of time and density by the time-differential perturbed angular correlation (TDPAC) method. The anisotropy shows a strong dependence on the density. By means of an extended model based on a stochastic model of Bosch and Spehl collision cross sections for charge transfer and deorientation could be determined. The cross sections for charge transfer collisions were within the region from 2·10−15 cm2 to 26·10−15 cm2 and for deorientation collisions between 1·10−15 cm2 and 100·10−15 cm2.
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D7, gekürzt