Engineering Design Integration & Non-Destructive Testing for the ESS accelerator

The ESS linac is under construction by the ESS partner institutes (so- called In-Kind Contributors - IKC) and will operate the most powerful proton beam ever for neutron spallation source. The linac delivers 5 MW via 2 GeV protons at a repetition rate of 14 Hz at the He-cooled solid tungsten target. The pulsed neutrons, result of the spallation, will reach the science instruments after having been moderated. The engineering effort needed to assemble the linac and its RF sources (klystrons), commenced with the design integration and currently is undergoing installation planning. In addition, the first dedicated engineering properties experiments, so-called Non-Destructive Testing for Accelerators (NDTA), take place to map and pilot the innovative testing strategy for the ESS linac structural materials. The Engineering Resources Group (ERG) of the Accelerator Division (AD) has been created to provide services of design integration, mechanical engineering and system engineering to ESS Accelerator Systems (ACCSYS) that are applicable across work package boundaries and principles of the linac systems. In parallel, part of the machine integration is the physical plant coordination and supervision. At last, in order to fulfill the missions of feasibility and planning, the ERG designs and leads the development of the technical laboratories for the accelerator systems. The current citation describes the engineering proposal for the mechanical design study and integration of the linac machine, its non- destructive testing and the essential development of the technical areas to service the long-term operational needs.