Speaker
Description
A CsI Detector for Coherent Elastic Neutrino-Nucleus Scattering (CICENNS) experiment is under preparation for a high-precision CEvNS research using neutrinos produced by the China Spallation Neutron Source (CSNS). Utilizing a total of 300kg CsI(Na) crystal scintillator, it aims to deliver precisely measured CEvNS cross-section and explore new physics beyond the Standard Model.
To manage both beam-on and -off data with high event rates, an advanced Data Acquisition (DAQ) system is under development by optimizing maximum throughput. The hardware integrates two distinct types of Flash Analog-to-Digital Converters (FADCs), dedicated to signal waveform processing for 15 20-kg crystal neutrino targets and 32 plastic scintillation veto modules surrounding them, to ensure a wide dynamic range and maintain signal integrity. On the software level, the DAQ framework employs a multi-threaded architecture that enables parallel processing of raw PMT signals and seamless data streaming. A steady-state background will be measured using data taken for enough time periods before and after beam arrival. In this presentation, we will describe the status of CICENNS DAQ system development and its performance checked by a CSNS beam and a cosmic-ray test.