ID: 1176 - MOYCA01 Review of Linear Optics Measurements and Corrections in Accelerators

• Rogelio Tomas Garcia (CERN)

Room: 30-7-018 - Kjell Johnsen Auditorium The measurement and correction of optics parameters has been a major concern since the advent of strong focusing synchrotron accelerators. Traditionally, colliders have led the development of methods for optics control based on turn-by-turn centroid data, while lepton storage rings have focused on closed orbit response techniques. Recently considerable efforts are being invested in comparing these techniques in different light sources and colliders. An emerging class of less invasive optics control techniques based on the optimization of performance related observables is demonstrating a great potential. A review of the existing techniques is presented highlighting comparisons, merits and limitations. Authors: Rogelio Tomas (CERN, Geneva), Ubaldo Iriso (ALBA-CELLS Synchrotron, Cerdanyola del Vallès), Andrea Franchi (ESRF, Grenoble), Masamitsu Aiba (PSI, Villigen PSI)

ID: 2503 - TUOBB03 CERN AWAKE Facility Readiness for First Beam

• Chiara Bracco (CERN)

Room: 30-7-018 - Kjell Johnsen Auditorium The AWAKE project at CERN was approved in August 2013 and since then a big effort was made to be able to probe the acceleration of electrons before the "2019-2020 Long Shutdown". The next steps in this challenging schedule will be a dry run of all the beam line systems, at the end of the HW commissioning in June 2016, and the first proton beam sent to the plasma cell one month later. The current status of the project is presented together with an outlook over the foreseen works for operation with electrons in 2018. Authors: Chiara Bracco, Marzia Bernardini, Andrew Butterworth, Heiko Damerau, Steffen Doebert, Valentin N. Fedosseev, Eduard Feldbaumer, Edda Gschwendtner, Wolfgang Höfle, Ans Pardons, Elena Shaposhnikova, Helmut Vincke (CERN, Geneva)

D: 2446 - WEOBA01 Beam Commissioning of the HIE-ISOLDE Post-Accelerator

• Jose Alberto Rodriguez (CERN)

Room: 30-7-018 - Kjell Johnsen Auditorium Phase 1a of the High Intensity and Energy ISOLDE (HIE-ISOLDE) project* was completed in 2015. The first cryomodule and two High Energy Beam Transfer lines (HEBT) were installed. In addition, many of the subsystems of the normal conducting part of the post-accelerator (REX) were renovated or refurbished. Following the hardware commissioning of the different system** and, in preparation for the start of the physics program, many tests and measurements were conducted as part of the beam commissioning program. The results of these tests and the plan for the next beam commissioning campaign are discussed in this paper. Authors: Jose Alberto Rodriguez, William Andreazza, James Mark Bibby, Niels Bidault, Enrico Bravin, Johannes Cornelis Broere, Esteban Daniel Cantero, Richard Catherall, Vince Cobham, Michal Elias, Eleftherios Fadakis, Pascal Fernier, Matthew Alexander Fraser, Frank Gerigk, Klaus Hanke, Yacine Kadi, Miguel Lozano Benito, Emanuele Matli, Sergey Sadovich, Erwin Siesling, Daniel Valuch, Walter Venturini Delsolaro, Fredrik Wenander, Pei Zhang (CERN, Geneva)

ID: 2387 - WEOCA03, SUPSS002 Simulating Proton Synchrotron Radiation in the Arcs of the LHC, HL-LHC and FCC-hh

• Gerardo Guillermo Canton (Centro Invest. Estudios Avanz. IPN (MX))

Room: 30-7-018 - Kjell Johnsen Auditorium At high proton-beam energies, beam-induced synchrotron radiation is an important source of heating, of beam-related vacuum pressure increase, and of primary photoelectrons, which can give rise to an electron cloud. We use the Synrad3D code developed at Cornell to simulate the photon distributions in the arcs of the LHC, HL-LHC, and FCC-hh. Specifically, for the LHC we study the effect of the "sawtooth" chamber, for the HL-LHC the consequences of the ATS optics with large beta beating in the arcs, and for the FCC-hh the effect of a novel beam-screen design, with a long slit surrounded by a "folded" ante-chamber. Authors: Gerardo Guillermo Cantón, Frank Zimmermann (CERN, Geneva), David Sagan (Cornell University (CLASSE), Ithaca, New York)