Embedded Readout Electronics R&D for the Large PMTs in the JUNO Experiment

Abstract

Jiangmen Underground neutrino Observatory (JUNO) is a next generation liquid scintillator neutrino experiment under construction phase in South China. Thanks to the anti-neutrinos produced by the nearby nuclear power plants, JUNO will primarily study the neutrino mass hierarchy, one of the open key questions in neutrino physics. One key ingredient for the success of the measurement is to use high speed, high resolution sampling electronics located very close to the detector signal. Linearity in the response of the electronics in another important ingredient for the success of the experiment. During the initial design phase of the electronics, a custom design, with the Front-End and Read-Out electronics located very close to the detector analog signal has been developed and successfully tested. The present paper describes the electronics structure and the first tests performed on the prototypes. The electronics prototypes have been tested and they show good linearity response, with a maximum deviation of 1.3% over the full dynamic range (1-1000 p.e.), fulfilling the JUNO experiment requirements.

20 pages, 15 figures

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• JUNO Conceptual Design Report
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• The OPERA experiment Target Tracker
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• Simulation Software of the JUNO Experiment
• Mass testing of the JUNO experiment 20-inch PMTs readout electronics
• Feasibility and physics potential of detecting ${}^8$B solar neutrinos at JUNO
• Validation and integration tests of the JUNO 20-inch PMTs readout electronics
• JUNO Physics and Detector
• Implementation and performances of the IPbus protocol for the JUNO Large-PMT readout electronics
• Study of using machine learning for level 1 trigger decision in JUNO experiment
• Check on the features of potted 20-inch PMTs with 1F3 electronics prototype at Pan-Asia
• The JUNO experiment and its electronics readout system