Characterization and Simulation of the Response of Multi Pixel Photon Counters to Low Light Levels

Details Characterization and Simulation of the Response of Multi Pixel Photon Counters to Low Light Levels Characterization and Simulation of the Response of Multi Pixel Photon Counters to Low Light Levels

2011-01-11

arxiv.org/abs/1101.1996v1

Nucl.Instrum.Meth.A656:69-83,2011

Physics

Instrumentation and Detectors

15 pages, 25 figures. Work done within the T2K collaboration. Submitted to Nucl. Instr. and Meth. A

Scientific paper

10.1016/j.nima.2011.07.022

The calorimeter, range detector and active target elements of the T2K near detectors rely on the Hamamatsu Photonics Multi-Pixel Photon Counters (MPPCs) to detect scintillation light produced by charged particles. Detailed measurements of the MPPC gain, afterpulsing, crosstalk, dark noise, and photon detection efficiency for low light levels are reported. In order to account for the impact of the MPPC behavior on T2K physics observables, a simulation program has been developed based on these measurements. The simulation is used to predict the energy resolution of the detector.

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