Erlangen 2026 – scientific programme

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T: Fachverband Teilchenphysik

T 53: Scintillator Detectors II

T 53.3: Talk

Wednesday, March 18, 2026, 16:45–17:00, KH 01.014

Update on the Constuction of SuperSANDI for ANNIE — •Philipp Kern, Michael Wurm, Noah Goehlke, Amala Augusthy, and Johann Martyn — JGU Mainz

The Accelerator Neutrino Neutron Interaction Experiment (ANNIE) is a CHerenkov neutrino detector at the Booster Neutrino Beam (BNB) at Fermilab. To also allow measurements with scintillation light, a water based scintillator (WbLS) is installed inside the detector. The advantage of WbLS in the detector is that it is possible to extreact the energy of the neutrinos with the scintillation light as well as the trajectory of it with the Cherenkov cone. To allow us to observe the full potential of the water based scintillator by a full reconstruction of extended neutrino event vertices, a vessel made of nylon holding 8000 litres will be deployed in 2026. To be able to deploy this vessel into ANNIE it must be inflatable to be able to fill out the whole volume of the detector. We will present you with the current status of the development of this vessel, SuperSANDI, which has unique challenges because of its size and the properties of the WbLS.

Keywords: ANNIE; Water based Liquid Scintillator; Neutrino Detector