2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/195021The first true coaxial 18-fold segmented n-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 fuer 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.21 pages, 16 Figures, to be submitted to NIM ANuclear Experimenttext