May 24 – 28, 2021
America/Vancouver timezone

Readout of Large Capacitance SiPMs in Noble Liquid TPCs

May 25, 2021, 10:42 AM
Parallel session talk Readout: Front-end electronics Readout: Front-end electronics


Sergio Rescia


Silicon Photomultipliers (SiPMs), used for light detection in Noble Liquid Time Projection Chambers (TPCs), can be ganged as good spatial resolution is not needed in the light detection. Thus, the detector capacitance seen at the input of the SiPM readout electronics is larger than any previous detector arrangement: from 5 to 12.5 nF. We propose an integrated readout system suitable for reading out large capacitance SiPM arrays in Noble Liquid TPCs, using two cryogenic ASICs developed at BNL. The two-ASIC readout separates high sensitivity analog functionality from mixed and digital circuits, optimizes allocation of functionalities with fewer risks, and makes paths of development more independent. The analog ASIC is a modified LArASIC chip developed for the readout of charge signals in liquid Argon TPCs. The signal and data processing ASIC provides the ADC, digital filtering, data processing, receives the configuration data, commands and synchronization, and drives data to the DAQ.

Primary authors

Sergio Rescia Dr Aleksey Bolotnikov (Brookhaven National Laboratory) Gabriella Carini (Brookhaven National Laboratory) Hucheng Chen (Brookhaven National Laboratory) Mickey Chiu (Brookhaven National Laboratory) Mieczyslaw Dabrowski (Brookhaven National Laboratory) Grzegorz Deptuch (Brookhaven National Laboratory) Shanshan Gaso (Brookhaven National Laboratory) Gabriele Giacomini (Brookhaven National Laboratory) sandeep Miryala (Brookhaven National Laboratory) David Moore (Yale University) Veljko Radeka (Brookhaven National Laboratory) Eric Raguzin (Brookhaven National Laboratory) Thomas Tsang (Brookhaven National Laboratory) Matthew Worcester (Brookhaven National Laboratory)

Presentation materials