Light Yield Measurement of SiPM-on-tile with Cosmic Rays

Silicon Photomultipliers (SiPM) are increasingly being used to detect photons in particle and nuclear physics experiments. In this talk, I will describe work related to the use of SiPM for particle detectors in future experiments on the Electron-Ion Collider, which is under construction in the Brookhaven National Laboratory. I focus on the technique called "SiPM on tile", which involves a SiPM coupled to a plastic scintillator tile. Charged particles such as those from cosmic rays are capable of causing a photoelectron to be emitted from scintillators upon ionization, which can be measured with a SiPM in the form of a change of voltage. In order to ensure a cosmic ray has been captured, threefold coincidence experiments need to be performed. I will describe a systematic study of measurements of "light yield" using various configurations of reflective wrapping and paint on the scintillator tiles. Such experiments will be used to inform the design of future particle-detector systems at the EIC.

This work is supported by DOE-NP traineeship program DE-SC0022526