Jun 13 – 15, 2012
LAL Orsay
Europe/Paris timezone

GEANT4 Simulation of the Time-Resolution of a Fast Scintillation Detector Read-out by a G-APD

Jun 13, 2012, 12:15 PM
1h 45m
Hall (LAL Orsay)


LAL Orsay

Poster Posters A


Dr Alexey Stoykov (Paul Scherrer Institut)


We have recently published [1] a time resolution study with a plastic scintillator read out by a~Geiger-mode Avalanche Photodiode. Time resolution of sigma = 18/(E^0.5) ps*MeV^0.5 was measured. The work presented here aims to simulate that experiment using the Geant4 toolkit, and to identify the parameters which have the largest effect on the total time resolution. We also compare different timing definitions - e.g. leading edge discrimination and constant fraction discrimination. [1] A. Stoykov, R. Scheuermann, K. Sedlak; Nucl. Inst. and Meth. in Phys. Res. A -- in press; http://dx.doi.org/10.1016/j.nima.2011.11.011

Primary author

Kamil Sedlak (Paul Scherrer Institut, Switzerland)


Dr Alexey Stoykov (Paul Scherrer Institut) Dr Robert Scheuermann (PSI)

Presentation materials