Göttingen 2025 – scientific programme

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T: Fachverband Teilchenphysik

T 38: Neutrino Physics III

T 38.1: Talk

Tuesday, April 1, 2025, 16:15–16:30, VG 3.103

ESS Neutrino Super Beam Plus (ESSνSB+)
Target Test Facility(ETTF) - R&D Setup — •Rishabh Moolya and Tamer Tolba — Institut für Experimentalphysik, Universität Hamburg

The ESSνSB+ Target Station will consist of a target-horn system operating under an intense 1.25 MW proton beam power, derived from the nominal 5 MW proton beam with a 14 Hz frequency provided by the European Spallation Source (ESS) Linac. An ESSνSB+ Target Test Facility (ETTF) is planned to be located at the Mechanical Measurements Lab (MML) in ESS, building upon the successful ESS Target Helium Experiments at LTH (ETHEL).

The ESSνSB+ target features a packed bed of titanium (Ti) spheres cooled with pressurized helium gas to withstand the substantial power deposition expected in the target bulk. Due to the granular structure of the target bulk, numerical CFD modeling of the thermodynamic behavior of the cooling system and target pellets is highly complex and necessitates experimental validation. The primary objective of this R&D setup is to address the challenges in simulating the mechanical and thermodynamic behavior of the target cooling system.

The proposed setup will include: a booster compressor, an electric heater, a test vessel, and a cooling heat exchanger with water on the secondary side. Current status of the commissioning of the prototype target system and the results of the aforementioned studies will be presented.

Keywords: ESS$\nu$SB+ Target Station; ESS$\nu$SB+ Target Test Facility(ETTF); Target R\&D Setup