Research Article
Effect of Photomultiplier Tube Voltage on the Performance of Sealed NaI (Tl) Scintillator Detectors
Figure 6
137Cs energy spectrum measured by NaI (Tl) detector and simulation results under different heights. (a) NaI (Tl) 2 inch 1 cm; (b) NaI (Tl) 2 inch 5 cm; and (c) NaI (Tl) 2 inch 10 cm.
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