2022/09/23 by V. Santoro, K. H Andersen, Santoro, V. +13
Engineering · Physics and Astronomy · #Computational Physics (physics.comp-ph) #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Nuclear Physics and Applications #Nuclear reactor physics and engineering #Radiation Detection and Scintillator Technologies
paper · pdf · doi:10.48550/arxiv.2209.11470
openalex publication_date 2022/09/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The European Spallation Source ESS is being constructed in Lund, Sweden, to be the world's brightest cold pulsed spallation neutron source. The facility uses a 2GeV proton beam hitting a target to produce neutrons. The neutrons are then thermalized in a moderator. Surrounding the moderator are several beam ports connected to neutron guides that transport the cold neutrons. Due to the long-pulse source nature of the ESS, neutron scattering instruments are significantly longer than at most existing facilities, with approximately half the instruments requiring neutron guides that are 150 meters long and only a few shorter than 50 meters. Therefore the shielding cost is dominated by the guide shielding. To fulfill the shielding requirement, a 'Common Shielding Project' has been initiated to deliver cost-effective and standardized solutions for several instruments. This includes both a consistent design of the shielding blocks, as well as a common approach to neutronics simulations.