The SiRi particle-telescope system

A silicon particle-telescope system for light-ion nuclear reactions is described. In particular, the system is optimized for level density and gamma-ray strength function measurements with the so-called Oslo method. Eight trapezoidal modules are mounted at 5 cm distance from the target, covering eight forward angles between theta = 40 degrees and 54 degrees. The thin front Delta E detectors (130 mu m) are segmented into eight pads, determining the reaction angle theta for the outgoing charged ejectile. Guard rings on the thick back E detectors (1550 mu m) guarantee low leakage current at high depletion voltage. (C) 2011 Elsevier B.V. All rights reserved.