2015/10/23 by L. Gruber, Gruber, L., Stefan Brünner +13 · 2 citations
Engineering · Physics and Astronomy · #Advanced Optical Sensing Technologies #Advanced Semiconductor Detectors and Materials #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Radiation Detection and Scintillator Technologies
paper · pdf · doi:10.48550/arxiv.1510.06906
openalex publication_date 2015/10/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We performed an experimental study to determine the pixel recovery time of various Multi Pixel Photon Counters (MPPCs) in order to characterize their rate capability and double-hit resolution. The recovery time constant and its dependence on the operating voltage has been evaluated by measuring the photosensor response to two consecutive laser pulses with varying relative time differences of a few ns (2-3 ns) up to some 100 ns using a waveform analysis technique. A Monte Carlo simulation tool is being developed to model the MPPC recovery process and interpret experimental data. In this context, the influence of after-pulsing, cross-talk and dark-noise on the recovery process can be studied.