HIGHLIGHTS
SUMMARY
In a recent paper, the response of different Silicon PhotoMultipliers (SiPMs) to the passage of a charged particle was studied in detail. The paper indicated few possible explanations for the observed excess of fired SPADs, such as different reaction processes in the bulk of the sensor structure or an effect of Cherenkov light due to the passage of the particle through the protection layer of the SiPM. For the WR sensor the multi-SPADs events are less probable, as reported in Fig 2; the time resolution when only one SPAD is firing is compatible . . .
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