Influence of the temperature and the ionisation potential on the hyperfine interaction of 111Cd ions in gaseous radioactive indium‐halides |
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Authors: | M Gründel H Dockter L Ziegeler I Borchert |
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Abstract: | The hyperfine interaction (HFI) of 111Cd in different indium‐halides was studied by perturbed angular correlation (PAC). The 111Cd ion arises from a 111In by electron capture decay (EC) and joined Auger cascade. Coulomb fragmentation of the indium‐halide molecule produces the
free excited 111Cd ion. The nucleus decays via a γ–γ‐cascade which is perturbed by the HFI. Collisions of the 111Cd ion with indium‐halide molecules can strongly change the perturbation. The perturbation was measured by the attenuation
coefficient G22(∞) and G22(t). The molecular densities varied between 1014 and 1020 cm−3. The present article shows the temperature dependence of the indium(III)‐halides and a fit for an empirical basic approach.
The investigation of the InBr shows the independence of the attenuation coefficient from the temperature by indium(I)‐halides
in contrast to the dependence of the indium(III)‐halides.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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