Author/Authors :
Wilhelm، نويسنده , , M. and Eberth، نويسنده , , J. and Pascovici، نويسنده , , G. and Radermacher، نويسنده , , E. and Thomas، نويسنده , , H.G. and von Brentano، نويسنده , , P. and Prade، نويسنده , , H. and Lieder، نويسنده , , R.M.، نويسنده ,
Abstract :
The Euroball Cluster detector consists of seven closely packed hexagonal encapsulated germanium detectors which are mounted in a common cryostat and surrounded by a BGO suppression shield. By adding back the Compton scattered events between the seven germanium detectors the detector system behaves similar as a single germanium detector with a volume of 2000 cm3. The response of this very large germanium detector to γ-rays up to 10 MeV has been measured using a short lived 24Al source produced at the Cologne FN Tandem accelerator. At 10 MeV the efficiency of the Cluster detector is nearly one order of magnitude larger than that of a 30% germanium detector.