The continuous readout stream of the MicroBooNE liquid argon time projection chamber for detection of supernova burst neutrinos

MicroBooNE Collaboration

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The MicroBooNE continuous readout stream is a parallel readout of the MicroBooNE liquid argon time projection chamber (LArTPC) which enables detection of non-beam events such as those from a supernova neutrino burst. The low energies of the supernova neutrinos and the intense cosmic-ray background flux due to the near-surface detector location makes triggering on these events very challenging. Instead, MicroBooNE relies on a delayed trigger generated by SNEWS (the Supernova Early Warning System) for detecting supernova neutrinos. The continuous readout of the LArTPC generates large data volumes, and requires the use of real-time compression algorithms (zero suppression and Huffman compression) implemented in an FPGA (field-programmable gate array) in the readout electronics. We present the results of the optimization of the data reduction algorithms, and their operational performance. To demonstrate the capability of the continuous stream to detect low-energy electrons, a sample of Michel electrons from stopping cosmic-ray muons is reconstructed and compared to a similar sample from the lossless triggered readout stream.

Original languageEnglish (US)
Article numberP02008
JournalJournal of Instrumentation
Volume16
Issue number2
DOIs
StatePublished - Feb 1 2021

Keywords

  • Data acquisition concepts
  • Data reduction methods
  • Neutrino detectors
  • Time projection chambers

ASJC Scopus subject areas

  • Mathematical Physics
  • Instrumentation

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