CATIROC: an integrated chip for neutrino experiments using photomultiplier tubes

Abstract

An ASIC named CATIROC (Charge And Time Integrated Read Out Chip) has been developed for the next-generation neutrino experiments using a large number of photomultiplier tubes (PMTs). Each CATIROC provides the time and the charge measurements for 16 configurable input channels operating in trigger-less mode. Originally designed for the light emission in water Cherenkov detectors, we show in this paper that its use can be extended to liquid-scintillator based experiments. The $\sim$26000 3-inch PMTs of the JUNO experiment, under construction in China, is a case in point. This paper describes the features of CATIROC with a special attention to the most critical points for its application to the time profile of the light emission in liquid scintillators. The achieved performances in both charge and time measurements can be inputs for future high-precision experiments making use of PMTs or other photo-sensitive detectors.

arXiv comment25 pages, 28 figures, accepted on JINST

References in corpus (5)

• Neutrino Physics with JUNO
• Letter of Intent for KM3NeT 2.0
• Hyper-Kamiokande Design Report
• JUNO Conceptual Design Report
• PMm2: large photomultipliers and innovative electronics for the next-generation neutrino experiments

Cited by in corpus (4)

• Prediction of Energy Resolution in the JUNO Experiment
• Neutron source-based event reconstruction algorithm in large liquid scintillator detectors
• Design, waterproofing, and mass production of the 3-inch PMT frontend system of JUNO
• First-principle event reconstruction by time-charge readouts for the Taishan Antineutrino Observatory