الفهرس 
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Abstract
the main of this study is to extend the existing nuclear spectroscopic information in the region A = 150 which has recently attracted great interest. Many nuclei in this region exhibit highspin yrast states obtained from single-particle alignment. In this work, investigations of high spin states in the region with N=85-86, Z=65-68 by y-spectroscopic methods are described. The experiments were performed at the MP-Tandem accelerator at the Max-Plank-Institut fur Kernphysik in heidelberg. For the reduction of the Comptom background in the spectra a Compton suppression spectrometer was used.