Nuisances of SiPMs and how to deal with them in ... - KICP Workshops

More documents

Recommendations

Info

Photondetector Requirements Highest possible photon detection efficiency (PDE) with peak response between 300 nm and 600 nm Lower energy threshold Better event reconstruction Single pe signal widths about 3 ns to 8 ns ● wider signals -> contamination from NSB ● narrower signals -> Cherenkov photons do not pile up Jitter (e.g. TTS) < 1-2ns Minimized non-Poisson tails in pulse height distribution Afterpulsing (PMTs) / Optical Crosstalk (SiPMs) Reduce accidental trigger Energy resolution Nepomuk Otte Improve SNR: Cherenkov Signal Night sky Background 10
P(n) = λ n /n! exp(-λ) Non-Poisson tails NSB fluctuations are distributed following a Poisson distribution Physical limit given by NSB below trigger Non-poisson tails Disc. Threshold Nepomuk Otte accidental triggers Otte, (2007) 11
Page 1 and 2: Nuisances of SiPMs and how to deal
Page 3 and 4: CTA-US SC telescope Schwarzschild C
Page 5 and 6: Module Conceptional Design Cold fin
Page 7 and 8: Night Sky Background Light From sta
Page 9: Intensities are not to scale Nepomu
Page 13 and 14: Operational Requirements Purpose of
Page 15 and 16: Output signals
Page 17 and 18: Faster output pulses by adding one
Page 19 and 20: Temperature Dependencies Critical E
Page 21 and 22: PDE Different effects contribute to
Page 23 and 24: Conceptual Design Primary goal for
Page 25 and 26: Photon Emission during Breakdown Av
Page 27 and 28: Non-Poisson tails due to optical cr
Page 29 and 30: Dependency of gain on NSB rate Larg

Nuisances of SiPMs and how to deal with them in ... - KICP Workshops

Create successful ePaper yourself

Delete template?

Save as template?