arXiv 2008.062402020-08physics.ins-detnucl-ex

The energy response of the Oslo Scintillator Array OSCAR

F. Zeiser, G. M. Tveten, F. L. Bello Garrote, M. Guttormsen, A. C. Larsen, V. W. Ingeberg, A. Görgen, S. Siem

备注：: Changes to v2 (submitted version): Accepted for NIMA with minor revisions (implemented); Changes to v1: see v2 - major changes in experimental setup and simulations [stalled version]
发表信息：: NIM A 985 (2021) 164678
DOI：: 10.1016/j.nima.2020.164678

英文摘要：

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

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