Waveform Analysis of Sipm Readout

The Electron Ion Collider is the next-generation facility for Nuclear Physics experiments that will seek to unravel the inner workings of matter. Particle detectors that measure energy of particles in collider experiments, called calorimeters, will be crucial for these experiments. Some of these calorimeters will be based on Silicon Photomultiplier (SiPM) technology, which has been improving subtantially in recent years. In this talk, I will present measurements that characterize the performance for SiPMs used for calorimeters at the future EIC. Using DRS4, Sipm single pulse of voltage waveform is recorded individually into data files that contain the time and voltage. Each waveform shows the background, rising, and falling slopes that the Sipm have when a single photon contacts the diode at Avalanche mode. This presentation shows the use of Python curve fit coding to identify the peak to peak voltages that is required to plot out the average intensity, that is observed by the Sipm at a given position and constant intensity input. The data output is furthermore being studied by a graduate student in the lab for the characterization of Sipms underneath a scintillating tile, while using step motors and UV lights at different positions for the Sipm readouts. (Other studies will be conducted between now and the event date)