The XENON1T Data Acquisition System

Abstract

The XENON1T liquid xenon time projection chamber is the most sensitive detector built to date for the measurement of direct interactions of weakly interacting massive particles with normal matter. The data acquisition system (DAQ) is constructed from commercial, open source, and custom components to digitize signals from the detector and store them for later analysis. The system achieves an extremely low signal threshold below a tenth of a photoelectron using a parallelized readout with the global trigger deferred to a later, software stage. The event identification is based on MongoDB database queries and has over 97% efficiency at recognizing interactions at the analysis energy threshold. A readout bandwidth over 300 MB/s is reached in calibration modes and is further expandable via parallelization. This DAQ system was successfully used during three years of operation of XENON1T.

14 pages, 6 figures, submitted to JINST; Version 2 with minor updates to text

References in corpus (12)

• Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T
• The XENON1T Dark Matter Experiment
• Constraining the Spin-Dependent WIMP-Nucleon Cross Sections with XENON1T
• First observation of two-neutrino double electron capture in ${}^{124}$Xe with XENON1T
• Supernova neutrino physics with xenon dark matter detectors: A timely perspective
• Conceptual design and simulation of a water Cherenkov muon veto for the XENON1T experiment
• Spatially uniform calibration of a liquid xenon detector at low energies using 83m-Kr
• Qualification Tests of the R11410-21 Photomultiplier Tubes for the XENON1T Detector
• Two distinct components of the delayed single electron background signals in liquid xenon emission detectors
• Results from a Calibration of XENON100 Using a Source of Dissolved Radon-220
• First results on the scalar WIMP-pion coupling, using the XENON1T experiment
• Accurate GPS-based timestamp facility for Gran Sasso National Laboratory

Cited by in corpus (16)

• Light Dark Matter Search with Ionization Signals in XENON1T
• First Dark Matter Search with Nuclear Recoils from the XENONnT Experiment
• Search for New Physics in Electronic Recoil Data from XENONnT
• Search for Coherent Elastic Scattering of Solar ${}^8$B Neutrinos in the XENON1T Dark Matter Experiment
• Emission of Single and Few Electrons in XENON1T and Limits on Light Dark Matter
• SNEWS 2.0: A Next-Generation SuperNova Early Warning System for Multi-messenger Astronomy
• The XENONnT Dark Matter Experiment
• XENON1T Dark Matter Data Analysis: Signal Reconstruction, Calibration and Event Selection
• Direct Detection of Dark Matter -- APPEC Committee Report
• Search for inelastic scattering of WIMP dark matter in XENON1T
• The XLZD Design Book: Towards the Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics
• The Triggerless Data Acquisition System of the XENONnT Experiment
• The XeBRA platform for liquid xenon time projection chamber development
• Reduction of ${}^{222}$Rn-induced Backgrounds in a Hermetic Dual-Phase Xenon Time Projection Chamber
• The neutron veto of the XENONnT experiment: Results with demineralized water
• A horizontally scalable online processing system for trigger-less data acquisition