Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session B37: Physics with AcceleratorsInvited Undergrad Friendly
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Sponsoring Units: FIP Chair: Luisa Cifarelli, Univ of Bologna Room: 605 |
Monday, March 2, 2020 11:15AM - 11:51AM |
B37.00001: Mission (Im-)possible: The Decoding of Matter Invited Speaker: Helmut Dosch Particle accelerators are the tool of choice for exploring the mysteries of the quantum universe and looking into the molecular engine room of materials and biological structures. In the last 5 decades, many of nature's great mysteries have been solved with the most modern and sophisticated ring facilities, from the discovery of the smallest constituents of matter to the deciphering of the molecular structure of the ribosome. |
Monday, March 2, 2020 11:51AM - 12:27PM |
B37.00002: THE EUROPEAN SPALLATION SOURCE Invited Speaker: John Womersley I will present an update on the European Spallation Source. The ESS is Europe’s next-generation neutron scattering facility, and is under construction in Lund, with the data management and software centre hosted in Copenhagen. It will be the world’s most powerful accelerator driven neutron source offering capabilities an order of magnitude beyond what currently exists. It is being built by a partnership of 13 European nations and has a total cost of roughly 2 billion Euros. Civil construction is nearing completion and operation of the first accelerator components is now starting. The initial suite of user instruments has been defined and we are making significant progress towards bringing the first three online in 2023. I’ll describe progress on the project, outline the technical challenges and some of the science opportunities that ESS will offer. I’ll also give an update on the work being done to understand and prepare for the start of operation of the facility in the coming decade. |
Monday, March 2, 2020 12:27PM - 1:03PM |
B37.00003: The ASU Compact XFEL Project Invited Speaker: William Graves We are pursuing phased development of a very compact XFEL (CXFEL) based on inverse Compton scattering (ICS) from a nanopatterned electron beam. In Phase 1 a compact x-ray light source (CXLS) is currently in commissioning and will demonstrate stable generation of femtosecond hard x-rays with properties similar to undulator radiation (not yet an XFEL). Results from CXLS commissioning will be presented. |
Monday, March 2, 2020 1:03PM - 1:39PM |
B37.00004: Plasma-based accelerators driven by particle beams Invited Speaker: Sebastien Corde As we push the frontier of particle physics to higher particle energies, conventional accelerator techniques are attaining their limits. The use of an ionized gas —or plasma— circumvents the most significant barrier of conventional techniques by increasing the energy gained per unit length by several orders of magnitude. One class of plasma accelerators, relevant for high energy physics and light source applications, consists in using a particle beam, « the driver », to excite a plasma wave, that can then accelerate the main particle beam. These beam-driven plasma accelerators have made considerable progress in the past few years, with groundbreaking results such as the high-efficiency acceleration of an electron beam [1], the multi-gigaelectronvolt acceleration of positrons [2], and proton-driven electron acceleration [3]. |
Monday, March 2, 2020 1:39PM - 2:15PM |
B37.00005: High Gradient Accelerators at THz Frequencies Invited Speaker: Emilio Nanni Electron beams are vital tools for scientific discovery, providing unique probes, sources of radiation and opening windows into the realm of high energy physics. To achieve these feats accelerator physicists aim to improve beam brightness, spatial and temporal coherence, and achieve higher energies on smaller scales. The use of THz radiation to manipulate and accelerate electron beams is dramatically changing what is possible with the next generation of accelerators. We aim to explore new accelerating structures designed to withstand high gradients, power them with the newest generation of THz sources and lay the foundation for THz accelerator technology. This research will provide answers to fundamental questions about the limits of accelerating gradients and improve understanding for the role of frequency, pulse length and stored energy in plasma breakdown. In this presentation we will review recent results, report on high gradient tests with metallic structures, explore advanced manufacturing techniques for structures and discuss near term applications for THz accelerator technology. |
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