Front-end and slow control electronics for large area SiPMs used for the single mirror Small Size Telescope (SST-1M) of the Cherenkov Telescope Array (CTA)

Aguilar, J. A.; Bilnik, W.; Borkowski, J.; Cadoux, F.; Christov, A.; Volpe, D. della; Favre, Y.; Heller, M.; Kasperek, J.; Lyard, E.; Marszałek, Adam; Moderski, R.; Montaruli, T.; Porcelli, A.; Prandini, E.; Rajda, P.; Rameez, M.; Schioppa, E. J.; Pujadas, I. Troyano; Ziętara, K.; Błocki, J.; Bogacz, L.; Bulik, T.; Curyło, M.; Dyrda, M.; Frankowski, A.; Grudniki, Ł.; Grudzińska, M.; Idźkowski, B.; Jamrozy, M.; Janiak, M.; Lalik, Krzysztof; Mach, E.; Mandat, D.; Michałowski, J.; Neronov, A.; Niemiec, J.; Ostrowski, M.; Paśko, P.; Pech, M.; Schovánek, Petr; Seweryn, K.; Skowron, K.; Sliusar, Vitalii; Sowiński, M.; Stawarz, Ł.; Stodulska, M.; Stodulski, M.; Toscano, S.; Walter, R.; Wiȩcek, M.; Zagdański, A.; Żychowski, P.

doi:10.1117/12.2232982

Cited by 5 publications

(5 citation statements)

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“…The PDE as a function of ∆V and λ is particularly useful to predict its variations with experimental conditions, such as temperature or the NSB [35], which affects ∆V and then the sensor response. The PDE as a function of ∆V and λ, shown in Fig.…”

Section: Relative Pde Measurement With Continuous Lightmentioning

confidence: 99%

Characterization of a large area silicon photomultiplier

Nagai

Alispach

Barbano

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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This work illustrates and compares some methods to measure the most relevant parameters of silicon photo-multipliers (SiPMs), such as photon detection efficiency as a function of over-voltage and wavelength, dark count rate, optical cross-talk, afterpulse probability. For the measurement of the breakdown voltage, V BD , several methods using the current-voltage IV curve are compared, such as the "IV Model", the "relative logarithmic derivative", the "inverse logarithmic derivative", the "second logarithmic derivative", and the "third derivative" models. We also show how some of these characteristics can be quite well described by few parameters and allow, for example, to build a function of the wavelength and over-voltage describing the photodetection efficiency. This is fundamental to determine the working point of SiPMs in applications where external factors can affect it.These methods are applied to the large area monolithic hexagonal SiPM S10943-2832(X), developed in collaboration with Hamamatsu and adopted for a camera for a gamma-ray telescope, called the SST-1M. We describe the measurements of the performance at room temperature of this device. The methods used here can be applied to any other device and the physics background discussed here are quite general and valid for a large phase-space of the parameters.

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Section: Relative Pde Measurement With Continuous Lightmentioning

confidence: 99%

Characterization of a large area silicon photomultiplier

Nagai

Alispach

Barbano

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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“…This resistor works as an active compensation loop for the temperature variation [10]. Hence, the steady current produced by NSB light induces a voltage drop across the resistor, which reduces the operational voltage of the SiPM [16]. As a consequence, these parameters vary for different NSB levels.…”

Section: The Efficiency Of An Opticalmentioning

confidence: 99%

“…The external light source events (see section 5.3) are affected by the ambient background light (typically 40 MHz night-sky background for a moon-less night), which means that SiPM parameters cannot be extracted as done in section 3.1.3. However, provided that the light source has been thoroughly characterized, it allows the monitoring of the model presented in [16], the extraction of the flat-field coefficients to equalize the trigger among the pixels as presented in section 5.3.3.…”

Section: On-site Calibration Strategymentioning

confidence: 99%

Large scale characterization and calibration strategy of a SiPM-based camera for gamma-ray astronomy

et al. 2020

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The SST-1M is a 4-m diameter mirror Davies-Cotton gamma-ray telescope. It has been designed to cover the energy range above ∼ 500 GeV and to be part of an array of telescopes separated by ∼ 150 − 200 m. Its innovative camera is featuring large area hexagonal silicon photomultipliers as photon detectors and a fully digital trigger and readout system. Here, the strategy and the methods for its calibration are presented, together with the obtained results. In particular, the off and on-site calibration strategies are demonstrated on the first camera prototype. The performances of the camera in terms of charge and time resolution are described.

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“…The number of photons is then assessed by correcting for the optical efficiency of the photodectection plane. The correction of the number of photoelectrons induced by a voltage drop from night-sky background are considered as described in [15].…”

Section: Cr =mentioning

confidence: 99%