The γ-ray energy response of the Oslo Scintillator Array OSCAR

• DOI: 10.1016/j.nima.2020.164678
• Publication Date: 2020-09-19T15:03:56Z
• Authors: F. Zeiser; G.M. Tveten; F.L. Bello Garrote; M. Guttormsen; A.C. Larsen; V.W. Ingeberg; A. Görgen; S. Siem
• Keywords: Physics - Instrumentation and Detectors; 500; FOS: Physical sciences; Instrumentation and Detectors (physics.ins-det); 530; 01 natural sciences; 03 medical and health sciences; 0302 clinical medicine; 0103 physical sciences; Nuclear Experiment (nucl-ex); Nuclear Experiment

The new Oslo Scintillator Array (OSCAR) has been commissioned at the Cyclotron Laboratory (OCL). It consists of 30 large volume (diameter 3.5 x 8 inches) LaBr$_3$(Ce) detectors that are used for $\gamma$-ray spectroscopy. response functions incident $\gamma$-rays up to 20 MeV simulated with $\texttt{Geant4}$. In addition, resolution, and total full-energy peak efficiencies extracted. results in very good agreement measurements from calibration sources experimentally obtained mono-energetic in-beam spectra.