Münster 2017 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 96: Trigger und DAQ 2

T 96.7: Vortrag

Mittwoch, 29. März 2017, 18:15–18:30, VSH 17

The Digital Control Unit of the Highly-Integrated Receiver Chip for JUNO — •Pavithra Muralidharan for the JUNO collaboration — Forschungszentrum Jülich GmbH, Jülich, Germany

The Jiangmen Underground Observatory (JUNO) is a multi-purpose underground experiment based on a 20000 ton liquid scintillator to measure neutrino interactions. The primary objective is the determination of the neutrino mass hierarchy by observing reactor neutrinos. The detection system must provide good timing and a continuous charge measurement of the signals delivered by around 18000 20 inch photomultipliers (PMTs) with a high quantum efficiency. To reduce cabling effort and improve power dissipation, the signal acquisition receiver chain is integrated into the PMT housing, creating an intelligent PMT. The digitization is performed in a fast analog to digital converter (ADC) with the receiver frontend integrated so that no external components are required. With a powerful digital part included into the receiver chip, effective data reduction and compression methods are employed as well as automatic regulation of baseline drifts. The concept and design of the digital part will be shown with a focus on the data processing path.