14-17 September 2021
America/Los_Angeles timezone

The SBND Photon Detection System

16 Sep 2021, 11:15
Light/charge readout (PMT, SiPM, WLS, electronics etc.) Light/Charge Readout (3B)


Vincent Basque (Fermilab)


The Short-Baseline Near Detector (SBND) is a 112 ton Liquid Argon Time Projection Chamber (LArTPC) that will be part of the Short-Baseline Neutrino (SBN) program at Fermilab. The SBN programme's main goal is to resolve the eV-scale sterile neutrino short-baseline anomaly. SBND will measure the un-oscillated beam flavour composition at an unprecedented number of neutrinos due to its proximity to the beam target. One of the major features of SBND will be its state of the art photon detection system. The active system will consist of photomultiplier tubes, as well as X-ARAPUCA devices, placed behind the wire planes providing a high granularity light collection. The active system will be enhanced by highly reflective panels covered with the wavelength shifting compound tetra-phenyl butadiene (TPB) inserted into the cathode plane. The combination of the active system and enhancers in SBND will ensure a high and more uniform light yield throughout the detector which will help to enable low energy physics triggering. This talk will provide an overview of the photon detection system of SBND and its current status.

Primary author

Vincent Basque (Fermilab)

Presentation Materials