An Optimized Design of Single-Channel Beta-Gamma Coincidence Phoswich Detector by Geant4 Monte Carlo Simulations

<table>An experimentally determined pure <sup>131m</sup>Xe standard beta-gamma coincidence spectrum by PW5 detector. The analyzed radioxenon concentration (a). Top view of the 3D histogram regarding the beta-gamma coincidence decay events detected by PhosWatch detector (b). The 2D histograms of energy deposition events at CsI(Tl) (c) and BC404 (d).</table>

Science and Technology of Nuclear Installations

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Figure 1

Figure 1: An Optimized Design of Single-Channel Beta-Gamma Coincidence Phoswich Detector by Geant4 Monte Carlo Simulations 