Determination of the Timing Resolution of the SuperBigBite Spectrometer Hadron Calorimeter using Flash Analog to Digital Converters (FADCs)

This research conducted at the Department of Energy's Thomas Jefferson National Accelerator Facility (JLab) successfully enhanced the timing resolution of the SuperBigBite Spectrometer Hadron Calorimeter (HCal), a device critical for measuring the characteristics of subatomic particles known as hadrons. Under the scope of JLab's mission to advance nuclear physics research, the project aimed to increase the precision of experimental outcomes by fine- tuning the HCal's timing resolution. The project employed a range of strategies including rigorous data selection and data correction algorithms. The researchers succeeded in significantly improving the timing resolution from an initial 6.7 nanoseconds (ns) to a more precise baseline of 1.2 ns. This was achieved through strategic data cuts, time-shift corrections due to signal amplitude variations, and an innovative pulse edge fitting algorithm. Despite the inherent challenges posed by the setup of the FADCs, most notably the length of the cable connecting the HCal to the FADCs, the study confirmed the competitiveness of the FADC method when paired with the right strategies. Future improvements could potentially be achieved by examining data in more detail, applying additional corrections, optimizing infrastructure, and eliminating electronic crosstalk. The professional development gained from this opportunity was vast, encompassing hands-on experience with high-energy physics experiments, the opportunity to devise and implement innovative solutions, and develop a deeper understanding of how improving the timing resolution of the HCal could enhance overall experimental precision in the field of nuclear physics. Furthermore, the project demonstrates the smallest steps that must be taken in order to achieve the best results. The project's success reinforces the relevance of JLab's mission and offers valuable insights for future work at the facility.