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ST: Fachverband Strahlen- und Medizinphysik
ST 3: Radiation Detectors and Imaging (Poster Session)
ST 3.1: Poster
Monday, March 22, 2010, 14:30–15:30, H41
Prediction and analysis of the time and energy resolution of scintillation-detectors by Monte-Carlo simulations — •Matthias Nagl1, Arnold Krille2, Ulrich Vetter1, Reinhard Krause-Rehberg2, and Hans Hofsäss1 — 1Georg-August-Universität Göttingen, II. Physikalisches Institut, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany — 2Martin-Luther-Universität Halle-Wittenberg, Institut für Physik, von-Danckelmann-Platz 3, 06120 Halle, Germany
A Monte-Carlo model for the emergence of scintillation-detector-signals is presented that allows for the prediction of certain scintillator-photomultiplier combinations’ time and energy resolutions while relying primarily on their basic data-sheet properties like light yield, decay time, quantum efficiency, and transit time spread. At the same time the model provides a deeper understanding of the performance limiting factors and stimulates the development of improved methods for the analysis of detector output signals. The simulation results are compared to high-speed digitizer measurements of signals from a number of widely used scintillation materials like LYSO, BaF2, LaBr3, NaI, and others.