K. Reuter

The influence of the isospin on the coherence widths in the compound nucleus 51V

Abstract The reactions 50 Ti(p, p 0 ) 50 Ti and 50 Ti(p, α 0 ) 47 Sc were investigated with proton energies between 9.5 and 10 MeV. From an autocorrelation analysis the mean coherence widths were determined for the compound nucleus 51 V. In the proton channel and in the α-particle channel different coherence widths were measured: in the proton channel Γ p = 5.3 ± 1.3 keV and in the α-particle channel Γ α = 2.3 ± 0.4 keV. The direct reaction part in the proton decay was more than 93 %. In the measured cross sections non-statistical structures were present.

Rotation of the plane of polarization of γ-radiation by hyperfine interaction

Abstract The orientation of the plane of polarization as well as the degree of linear polarization of γ-radiation is investigated in an external magnetic field.

Messung der zirkularen Polarisation der Inneren Bremsstrahlung von90Y

The circular polarization of the Internal Bremsstrahlung (IB) of90Y was measured with a Compton polarimeter according to Beard and Rose. The results are compatible with the theoretical predictions of Ford and Martin [8], who include “detour transitions” in their calculations of the circular polarization. Measurements ofΒ-γ-correlations of the IB of90Y are discussed, which suggest the consideration of detour transitions too.

A simple mounting for a liquid target

Abstract A rotating glass cylinder as mounting for a liquid and its application for ‘in-beam’ experiments is described.

Untersuchungen zur energieunschärfe des erlanger en-tandems

Abstract The influence of the stabilizer system of the Erlangen EN-Tandem on the beam spread was investigated. There was especially searched for a possible correlation between the terminal ripple signal and the observed energy resolution. The measured value using a nuclear reaction was found to be ΔE=2.1 keV.