Scintillation Light in SBND: Simulation, Reconstruction, and Expected Performance of the Photon Detection System
arxiv(2024)
Abstract
SBND is the near detector of the Short-Baseline Neutrino program at Fermilab.
Its location near to the Booster Neutrino Beam source and relatively large mass
will allow the study of neutrino interactions on argon with unprecedented
statistics. This paper describes the expected performance of the SBND photon
detection system, using a simulated sample of beam neutrinos and cosmogenic
particles. Its design is a dual readout concept combining a system of 120
photomultiplier tubes, used for triggering, with a system of 192 X-ARAPUCA
devices, located behind the anode wire planes. Furthermore, covering the
cathode plane with highly-reflective panels coated with a wavelength-shifting
compound recovers part of the light emitted towards the cathode, where no
optical detectors exist. We show how this new design provides a high light
yield and a more uniform detection efficiency, an excellent timing resolution
and an independent 3D-position reconstruction using only the scintillation
light. Finally, the whole reconstruction chain is applied to recover the
temporal structure of the beam spill, which is resolved with a resolution on
the order of nanoseconds.
MoreTranslated text
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined