PMT overshoot study for JUNO prototype detector

Abstract

The quality of PMT signal is one of the key items for a large and high precision neutrino experiment, like Daya Bay, JUNO, while most of the experiments are affected by the PMT signal overshoot from its positive HV-single cable scheme. For JUNO prototype detector, we have a detailed study on the PMT overshoot and successfully reduced the ratio of overshoot amplitude to signal to ~1% from previous typical ~10%, with no affection to PMT other parameters. Furthermore, we calculated that the overshoot is a result of discharging of capacitors in the HV-signal splitter and the PMT voltage divider. The study result is extremely important for JUNO and other similar experiments.

6 pages, 11 figures

References in corpus (5)

• Precision Measurement of Neutrino Oscillation Parameters with KamLAND
• The Borexino detector at the Laboratori Nazionali del Gran Sasso
• Reactor electron antineutrino disappearance in the Double Chooz experiment
• A side-by-side comparison of Daya Bay antineutrino detectors
• Qualification Tests of 474 Photomultiplier Tubes for the Inner Detector of the Double Chooz Experiment

Cited by in corpus (6)

• Mass Testing and Characterization of 20-inch PMTs for JUNO
• Prediction of Energy Resolution in the JUNO Experiment
• Comparison on PMT Waveform Reconstructions with JUNO Prototype
• Study of 20-inch PMTs dark count generated large pulses
• Check on the features of potted 20-inch PMTs with 1F3 electronics prototype at Pan-Asia
• A study of the new hemispherical 9-inch PMT