Author/Authors :
Schwenke، نويسنده , , M. and Zuber، نويسنده , , K. and Janutta، نويسنده , , B. and He، نويسنده , , Z. and Zeng، نويسنده , , Thierry F. and Anton، نويسنده , , G. and Michel، نويسنده , , T. and Durst، نويسنده , , J. and Lück، نويسنده , , F. and Gleixner، نويسنده , , T. and Gِssling، نويسنده , , C. and Schulz، نويسنده , , O. and Kِttig، نويسنده , , T. and Krawczynski، نويسنده , , H. and Martin، نويسنده , , J. and Stekl، نويسنده , , I. and Cermak، نويسنده , , P.، نويسنده ,
Abstract :
The aim of the COBRA experiment is the search for neutrinoless double beta decay events in Cadmium Zinc Telluride (CdZnTe) room temperature semiconductor detectors. The development of pixelated detectors provides the potential for clear event identification and thus major background reduction. The tracking option of a semiconductor is a unique approach in this field. For initial studies, several possible detector systems are considered with a special regard for low background applications: the large volume system Polaris with a pixelated CdZnTe sensor, Timepix detectors with Si and enriched CdTe sensor material and a CdZnTe pixel system developed at the Washington University in St. Louis, USA. For all detector systems first experimental background measurements taken at underground laboratories (Gran Sasso Underground Laboratory in Italy, LNGS and the Niederniveau Messlabor Felsenkeller in Dresden, Germany) and additionally for the Timepix detectors simulation results are presented.
Keywords :
Low background experiment , Pixel detector , COBRA , Neutrinoless double beta decay
