The European spallation source

Abstract

Lund was chosen as the site for the European Spallation Source (ESS) in 2009, and a company, ESS AB, was created to design, build and operate it. In 2010 the Accelerator Design Update (ADU) collaboration was formed to update the design that was the established in 2003, and to deliver a Technical Design Report at the end of 2012 [1]. Detailed planning for the Prepare-to-Build prototyping project has begun, and potential future power upgrades are being considered. First protons are expected in 2018, and first neutrons in 2019 [2]. The updated design delivers 5MWof 2.5 GeV protons to a single target, in 2.86 ms long pulses with a 14 Hz repetition rate. The linac will have a normal conducting front end with an ion source, a Radio Frequency Quadrupole (RFQ), and a Drift Tube Linac (DTL). The superconducting section of the linac contains spoke cavities followed by two families of elliptical cavities [3]. The ESS has the ambitious goal of being a sustainable research facility with zero release of carbon dioxide [4]. This will be achieved through a combination of actions, with a focus on the linac - The most energy hungry component. Care is being taken to optimize the overall energy efficiency, and to re-use the hot water coming out of the facility. Copyright © 2011 by IPAC'11/EPS-AG.