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. Author manuscript; available in PMC: 2005 Dec 20.
Published in final edited form as: IEEE Trans Nucl Sci. 2005 Feb;52(1):28–32. doi: 10.1109/TNS.2004.843151

Fig. 2.

Fig. 2

Diagram of the circuit concept used to distinguish between SPE and γ-ray events. Channel 1 has low amplification gain and contains both optical SPE and γ-ray events. A trigger is set just above the SPE level (~10–12 mV, dotted line in channel 1) and is used to suppress (veto) events in channel 2, containing the SPE signal. The dashed line in the middle signal trace indicates a γ-ray event that has randomly occurred before the end of a veto pulse. It extends the veto pulse by retriggering the 12 μs delay.