[en] These proceedings collate lectures given at the twenty-fifth specialized course organised by the CERN Accelerator School (CAS). The course was held in Bilbao, Spain from 24 May to 2 June 2011, in collaboration with ESS Bilbao. The course covered the background accelerator physics, different types of particle accelerators and the underlying accelerator systems and technologies, all from the perspective of high beam power. The participants pursued one of six case studies in order to get “hands-on” experience of the issues connected with high power machines

[en] Analysis of the existing «megascience» projects, such as the Joint Institute for Nuclear Research (JINR) in Dubna (the Russian Federation) and the European Spallation Source (ESS) in Lund (the Kingdom of Sweden) allows to conclude that one of the most suitable legal forms for the ICNR PIK would be an international intergovernmental organization (IGO). Legal status of the IGO would provide an international participation in the functioning of the ICNR PIK within the territory of the Russian Federation on the grounds of member or observer status or conclusion of bilateral and multilateral agreements on specific science programs and research studies. To conclude, the IGO is the most suitable organizational and legal form for the ICNR PIK. The establishment of the ICNR PIK will contribute to further integration of the Russian science in the global scientific research community and will expand the scope of cooperation of the Russian Federation in the international arena. (paper)

[en] Recently Bunch Shape Monitors have been developed for linear accelerators of several laboratories: CERN, GSI, FRIB MSU, ESS ERIC. Each accelerator has specific demands for phase resolution, mechanical design and operating conditions of the monitor. An overview of the most interesting features of the monitors is presented. Some results of laboratory tests and on-site commissioning are discussed.

[en] Preface The 8^th International Particle Accelerator Conference, IPAC’17, took place at the Bella Center Copenhagen, Denmark, from Sunday to Friday, 14 to 19 May, 2017. It was attended by more than 1350 full time delegates from approximately 34 different countries. All participants considered (incl. JACOW team, grant students and exhibitors), IPAC’17 was visited by 1550 people. Hosted by the European Spallation Source (ESS), it was supported by MAXIV and Aarhus University. It was organised under the auspices of the European Physical Society Accelerator Group (EPS-AG) and the International Union of Pure and Applied Physics (IUPAP). (paper)

[en] The European Spallation Source (ESS), presently well on its way to completion, will soon provide the most intense neutron beams for multi-disciplinary science. Fortuitously, it will also generate the largest pulsed neutrino flux suitable for the detection of Coherent Elastic Neutrino-Nucleus Scattering (CEνNS), a process recently measured for the first time at ORNL’s Spallation Neutron Source. We describe innovative detector technologies maximally able to profit from the order-of-magnitude increase in neutrino flux provided by the ESS, along with their sensitivity to a rich particle physics phenomenology accessible through high-statistics, precision CEνNS measurements.

[en] The construction of the European Spallation Source ESS is ongoing in Lund, Sweden. This new high power spallation source with its long-pulse structure opens up new possibilities for fundamental physics experiments. This paper focusses on two proposals for fundamental physics at the ESS: The ANNI instrument and the neutron-anti-neutron oscillation experiment. (paper)

[en] Micro/nanofibers that are created by direct-writing using an electrospinning (ES) technique have aroused much recent attention, owing to their intriguing physical properties and great potential as building blocks for micro/nanoscale devices. In this work, a wavy direct-writing (WDW) process was developed to directly write wavy micro/nanostructures suitable for the fabrication of micro/nanoscale devices. The low voltage WDW technique is anticipated to be useful for a broad range of applications including flexible/stretchable electronics, micro optoelectronics, nano-antennas, microelectromechanical systems (MEMS), and biomedical engineering. (paper)

[en] Low-dimensional moderators were designed for the European Spallation Source (ESS), and the same concepts can be applied to compact sources. At ESS, quasi two-dimensional (2D) high-brightness moderators will serve all the instruments of the initial suite. The design of the moderators is influenced by several factors, such as the layout of the facility, the requirements for beam extraction, and the number of instruments; these constraints led to the choice of the 2D 'butterfly' moderator for ESS. In an accelerator-based compact source, such moderators can be designed in an even more efficient way than for high-power sources, taking advantage of the lower heat loads and of the more compact arrangement of the target-moderator system, which gives more freedom in the optimization of the geometrical setup. Some promising design options such as the presence of a pre-moderator or a 2-target configuration have been explored

[en] The European Spallation Source (ESS) is a world class neutron source under construction in Lund, Sweden. Upon completion, ESS, which produces neutrons via the interaction of a high energy proton beam and a target, will be a much brighter source of neutrons than existing facilities. Cryogenics and superconductivity play a major role in the ESS design contributing to the acceleration of the proton beam, to the moderation of the resulting neutrons and to the environment of many of the experiments. This talk describes the ESS design and its current status and highlights the role played by cryogenics and superconductivity. Special features of ESS including the use of in-kind contributions and extensive heat recovery systems are also discussed. (author)

[en] After a short summary of the design and the specifications of the ESS an overview of the current status and schedule of the ESS construction project will be given with a strong focus on the instruments and the surrounding scientific infrastructure. The overall goal of ESS is to begin user operation with 8 instruments in 2023. The plan is to reach the full scope of 22 public instruments by 2028. ESS will cover a very broad spectrum of science and is designed to push the limits of neutron methods to new horizons. Selected examples of new scientific opportunities will be discussed. (author)