JUNO is proposed to determine the neutrino mass hierarchy and rich in many other neutrino topics. A prototype is designed and set up for better understanding sub-systems of future detector. The preliminary results show that its threshold reaches ~0.3MeV with trigger rate ~290 Hz on the ground with cosmic muon rate ~35 Hz. Aiming for a better detector understanding from PMT signal, three reconstruction algorithms are compared for PMT waveforms with different overshoot ratios, including charge integration, waveform fitting, and deconvolution. It is concluded that the three methods have similar performance on uncertainty and systematic bias while deconvolution algorithm is best to handle larger overshoot and the simplest charge integration could be considered with controlled overshoot for future fast preliminary reconstruction.
@article{arxiv.1905.03648,
title = {Comparison on PMT Waveform Reconstructions with JUNO Prototype},
author = {H. Q. Zhang and Z. M. Wang and Y. P. Zhang and Y. B. Huang and F. J. Luo and P. Zhang and C. C. Zhang and M. H. Xu and J. C. Liu and Y. K. Heng and C. G. Yang and X. S. Jiang and F. Li and M. Ye and H. S. Chen},
journal= {arXiv preprint arXiv:1905.03648},
year = {2019}
}