%0 Thesis %A Bessler, Yannick %T Strömungsmechanische Simulation und experimentelle Validierung des kryogenen Wasserstoff-Moderators für die Europäische Spallationsneutronenquelle ESS %V 262 %I RWTH Aachen University %V Dissertation %C Jülich %M FZJ-2022-04891 %@ 978-3-95806-660-1 %B Schriften des Forschungszentrums Jülich Reihe Schlüsseltechnologien / Key Technologies %P XXIV, 154, xxxiii %D 2022 %Z Dissertation, RWTH Aachen University, 2020 %X The European spallation neutron source ESS is currently under construction and should start part-load operation in 2023. With an average proton beam power of 5 MW, it will become the most powerful spallation neutron source worldwide. A key component of a spallation neutron source is the cold moderator. At the ESS, the cold moderator will be operated with liquid parahydrogen at a temperature and pressure around 20 K and 10 bar respectively and is intended to slow down (moderate) the fast neutrons, released by the spallation process, to the required low velocity level. %F PUB:(DE-HGF)3 ; PUB:(DE-HGF)11 %9 BookDissertation / PhD Thesis %U https://juser.fz-juelich.de/record/911635