Speaker
Description
ANDESPix is a digital silicon photomultiplier (SiPM) ASIC designed to
readout scintillating fibers with low light intensity, as part of a muon detector, following the same muon detection principle used for muon detectors at the Pierre Auger Observatory.
Thereby, photons should be detected with very high time resolution (<100 ps) in order to identify impinging muons and their time of arrival (ToA) on the muon detector. In ANDESPix each single photon avalanche diode (SPAD) has its own digital readout containing a time-to-digital converter (TDC). The zero-suppressed digital readout allows to receive detailed spacial information of incoming photons. This may lead to better understanding of their nature and increased detector efficiency, as e.g. improved fiber alignment to the SiPM.
ANDESPix is designed in 110 nm CMOS technology from LFoundry (LF11IS). This technology includes a SPAD cell for the wavelength range from 400nm to 850nm with high photon detection efficiency (PDE) and low dark count rate (DCR) developed by Fondazione Bruno Kessler (FBK).
It is planned to present first measurement results at the symposium.
