Entity
Short-Baseline Near Detector (SBND)
SBND is a 112-tonne liquid argon time projection chamber at Fermilab's Booster Neutrino Beam, part of the Short-Baseline Neutrino Program, which began operation in 2024 and has amassed the world's largest neutrino-argon interaction dataset.
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## Overview
The Short-Baseline Near Detector (SBND) is a 112 tonne active mass liquid argon time projection chamber (LArTPC) situated in the Booster Neutrino Beam at Fermilab, forming part of the Short-Baseline Neutrino (SBN) Program (arXiv:2610.11782, October 9, 2026).
## Operations and Performance
SBND began operation in 2024 and has since accumulated the world's largest sample of neutrino-argon interactions (arXiv:2610.11782, October 9, 2026). All detector systems reportedly performed at or above design requirements during the first year of beam operation, including achieving high liquid argon purity (arXiv:2610.11782, October 9, 2026).
## Strategic Significance
SBND is a key component of the Fermilab Short-Baseline Neutrino Program, which investigates anomalies in neutrino oscillation data, including potential sterile neutrino signatures. Its large neutrino-argon interaction dataset positions it as an important reference for future LArTPC-based detectors, including larger-scale programs like DUNE.