Characterization of the first true coaxial 18-fold segmented nn-type prototype HPGe detector for the gerda project

The first true coaxial 18-fold segmented nn-type HPGe prototype detector produced by Canberra-France for the GERDA neutrinoless double beta-decay project was tested both at Canberra-France and at the Max-Planck-Institut für Physik in Munich. The main characteristics of the detector are given and measurements concerning detector properties are described. A novel method to establish contacts between the crystal and a Kapton cable is presented.