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SPS and CNGS

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2018-12-12
09:40
Enhanced Bunch Monitoring by Interferometric Electro-Optic Methods / Gibson, Stephen (Royal Holloway, U. of London ; JAI, UK) ; Arteche, Alberto (Royal Holloway, U. of London) ; Bashforth, Sophie (JAI, UK) ; Bosco, Alessio (Royal Holloway, U. of London ; JAI, UK) ; Krupa, Michal (CERN) ; Lefèvre, Thibaut (CERN)
A prototype Electro-Optic Beam Position Monitor has been installed for tests* in the CERN SPS to develop the concept for high-bandwidth (6-12GHz) monitoring of crabbed-bunch rotation and intra-bunch instabilities at the High Luminosity LHC**. The technique relies on the ultrafast response of birefringent MgO:LiNO3 crystals to optically measure the intra-bunch transverse displacement of a passing relativistic bunch. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-WEPAL073 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAL073

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2018-12-12
09:39
The AWAKE Electron Spectrometer / Keeble, Fearghus (University Coll. London) ; Cascella, Michele (University Coll. London) ; Chappell, James (University Coll. London) ; Deacon, Lawrence (University Coll. London) ; Gorgisyan, Ishkhan (CERN) ; Jolly, Simon (University Coll. London) ; Mazzoni, Stefano (CERN) ; Penna, Paolo (European Southern Observ.) ; Quattri, Marco (European Southern Observ.) ; Wing, Matthew (University Coll. London)
The AWAKE experiment at CERN aims to use a proton driven plasma wakefield to accelerate electrons from 10–20 MeV up to GeV energies in a 10 m plasma cell. We present the design of the magnetic spectrometer which will measure the electron energy distribution. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-THPML118 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.THPML118

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2018-12-10
18:53
Improving the slow extraction efficiency of the CERN Super Proton Synchrotron / Brunner, Kristof
In the last few decades, the use of particle accelerators became widespread not only in different fields of physics (eg [...]
CERN-THESIS-2018-278 - 47 p.

Fulltext
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2018-12-10
17:02
SPS Operation and Future Proton Sharing scenarios with the SHiP facility / Arduini, Gianluigi (CERN) ; Bartosik, Hannes (CERN) ; Fraser, Matthew Alexander (CERN) ; Goddard, Brennan (CERN) ; Kain, Verena (CERN) ; Koukovini Platia, Eirini (CERN)
The Search for Hidden Particles (SHiP) experiment aims at acquiring a total of 4 ×10 protons on target (PoT) per year [...]
CERN-ACC-NOTE-2018-0082. - 2018. - 15 p.

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2018-12-05
06:11
Identification and Removal of SPS Aperture Limitations / Kain, Verena (CERN) ; Alemany-Fernández, Reyes (CERN) ; Bartosik, Hannes (CERN) ; Cettour Cave, Stephane (CERN) ; Cornelis, Karel (CERN) ; Cruikshank, Paul (CERN) ; Ferreira Somoza, Jose (CERN) ; Goddard, Brennan (CERN) ; Pasquino, Chiara (CERN)
The CERN SPS (Super Proton Synchrotron) serves as LHC injector and provides beam for the North Area fixed target experiments. Since the 2016 run automated local aperture scans have been performed with the main focus on the vertical plane where limitations typically arise due to the flat vacuum chambers in most SPS elements. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-TUPAF021 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.TUPAF021

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2018-12-05
06:10
Upgrade of the CERN SPS Beam Position Measurement System / Wendt, Manfred (CERN) ; Barros Marin, Manoel (CERN) ; Boccardi, Andrea (CERN) ; Bogey, Thierry (CERN) ; Degl'Innocenti, Irene (CERN) ; Kain, Verena (CERN) ; Moran Guizan, Carla (CERN) ; Topaloudis, Athanasios (CERN)
The CERN Super Proton Synchrotron (SPS) is a fast cycling hadron accelerator delivering protons with momenta of up to 450 GeV/c for the Large Hadron Collider (LHC), fixed target experiments and other users such as the AWAKE plasma acceleration experiment, and also used to accelerate heavy ions. This paper presents the upgrade initiative for the SPS beam position measurement system in the frame of the CERN LHC Injector Upgrade (LIU) project. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-WEPAF085 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF085

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2018-12-05
06:10
Commissioning the ELENA Beam Diagnostics Systems at CERN / Tranquille, Gerard (CERN) ; Burger, Stephane (CERN) ; Gąsior, Marek (CERN) ; Grandemange, Pierre (CERN) ; Levens, Thomas (CERN) ; Marqversen, Ole (CERN) ; Søby, Lars (CERN)
The Extra Low ENergy Antiproton ring (ELENA) at CERN entered the commissioning phase in November 2016 using H⁻ ions and antiprotons to setup the machine at the different energy plateaus. The low intensities and energy of the ELENA beam generate very weak signals making beam diagnostics very challenging. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-WEPAF084 Fulltext: wepaf084 - PDF; 1690602_wepaf084 - PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF084

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2018-12-05
06:10
Commissioning of Beam Instrumentation at the CERN AWAKE Facility After Integration of the Electron Beam Line / Gorgisyan, Ishkhan (CERN) ; Bracco, Chiara (CERN) ; Burger, Stephane (CERN) ; Cascella, Michele (University Coll. London) ; Döbert, Steffen (CERN) ; Gessner, Spencer (CERN) ; Gschwendtner, Edda (CERN) ; Jensen, Lars (CERN) ; Jensen, Steen (CERN) ; Jolly, Simon (University Coll. London) et al.
The Advanced Proton Driven Plasma Wakefield Acceleration Experiment (AWAKE) is a project at CERN aiming to accelerate an electron bunch in a plasma wakefield driven by a proton bunch. The plasma is induced in a 10 m long rubidium vapor cell using a pulsed Ti:Sapphire laser, with the wakefield formed by a proton bunch from the CERN Super Proton Synchrotron (SPS). [...]
2018 - 5 p. - Published in : (2018) , pp. WEPAF070
- Published in : J. Phys. : Conf. Ser.: 1067 (2018) , no. 7, pp. 072015 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF070

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2018-12-04
06:43
Emittance Growth in Coast in the SPS at CERN / Antoniou, Fanouria (CERN ; U. Liverpool (main)) ; Alekou, Androula (U. Manchester (main) ; CERN) ; Bartosik, Hannes (CERN) ; Bohl, Thomas (CERN) ; Calaga, Rama (CERN) ; Carver, Lee (CERN ; U. Manchester (main)) ; Repond, Joël (CERN) ; Vandoni, Giovanna (CERN)
The HL-LHC prototype crab-cavities are installed in the CERN SPS, which, for the first time, will allow for a comprehensive beam test with high energy protons. As the time available for experimental beam dynamics studies with the crab cavities installed in the machine will be limited, a very good preparation is required. [...]
2018 - 7 p. - Published in : (2018) , pp. MOPMF061
- Published in : J. Phys. : Conf. Ser.: 1067 (2018) , no. 2, pp. 022008 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.MOPMF061

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2018-12-04
06:43
The SPS Tests of the HL-LHC Crab Cavities / Calaga, Rama (CERN) ; Capatina, Ofelia (CERN) ; Vandoni, Giovanna (CERN)
Two superconducting crab cavities in the framework of the High Luminosity (HL-LHC) LHC were built to test for the first time with proton beams in the Super Proton Synchrotron (SPS) at CERN. These tests will address the operation of the crab cavities in a high current and high intensity proton machine through the full energy cycle with a primary focus on cavity transparency, performance and stability, failures modes and long term effects on proton beams. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-TUPAF057 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.TUPAF057

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