Production and installation of wavelength-shifting reflective light enhancers for the Short-Baseline Near Detector
Journal of Instrumentation IOP Publishing 21:10 (2026) p10008
Abstract:
We report on the design, production, and installation of a wavelength-shifting reflective system on the cathode of the Short-Baseline Near Detector (SBND), a liquid argon time projection chamber located along the Fermilab Booster Neutrino Beam. To increase and homogenize scintillation-light collection, 64 double-sided plates were fabricated from FR4, laminated with specular reflector film and coated with 鈭�300 渭g/cm2 of tetraphenyl butadiene (TPB) wavelength shifter using controlled physical vapor deposition. The coating uniformity was validated through dedicated measurements of deposited mass and profilometry studies. Because exposure to ambient blue/UV light could degrade the TPB, protective filtering and controlled storage conditions were implemented during handling and installation. The coated plates were assembled between conductive meshes for high-voltage compatibility and installed in situ during detector integration. This system constitutes the largest TPB-coated area deployed in a neutrino detector. It operates in conjunction with SBND's photon detection system, which consists of photomultiplier tubes and X-ARAPUCAs. Early light-collection measurements show high uniformity and light response across the detector, supporting improved triggering, calorimetry, and position reconstruction in SBND.First double-differential cross-section measurements in proton multiplicity and kinematics for mesonless $谓_渭$ charged-current interactions on argon using the MicroBooNE detector
ArXiv 2609.40237 (2026)
First double-differential cross-section measurements in proton multiplicity and kinematics for mesonless $谓_渭$ charged-current interactions on argon using the MicroBooNE detector
Office of Scientific and Technical Information (OSTI) (2026)
Benchmarking Nucleon Production in Hadron Interactions Relevant for GeV-scale Neutrino Experiments
ArXiv 2609.22662 (2026)
First Measurement of Differential Cross Sections in Kinematic Imbalance Variables with Electron Neutrino Interactions Using the MicroBooNE Detector
ArXiv 2609.20949 (2026)