CERN Accelerating science

All CERN Accelerators documents

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2018-12-10
18:53
Improving the slow extraction efficiency of the CERN Super Proton Synchrotron / Brunner, Kristof (Eotvos Lorand University (HU)) ; Barna, Daniel (dir.) (Wigner RCP) ; Wiesner, Christoph (dir.) (CERN)
In the last few decades, the use of particle accelerators became widespread not only in different fields of physics (eg. particle physics, particle astrophysics) but also in other sciences [1]. [...]
CERN-THESIS-2018-278.- 47 p. Fulltext: PDF; External link: Approve this document (restricted)

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2018-12-10
17:11
A mode analyser for observation of longitudinal coupled bunch oscillations / Asboe-Hansen, P
CERN-PS-OP-76-6.
- 1976. - 21 p.

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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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2018-12-10
10:09
LHC Availability 2018: Proton Physics / Todd, Benjamin (CERN) ; Ponce, Laurette (CERN) ; Apollonio, Andrea (CERN) ; Walsh, David John (CERN)
This document summarises the LHC machine availability for the period of Restart to Technical Stop 3 (TS3) in 2018. [...]
CERN-ACC-NOTE-2018-0081.
- 2018. - 23 p.
Full text

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2018-12-08
06:01
Development of the AWAKE Stripline BPM Electronics / Liu, Shengli (TRIUMF) ; Verzilov, Victor (TRIUMF) ; Farabolini, Wilfrid (CERN) ; Doebert, Steffen (CERN) ; Schmidt, Janet S (CERN)
The stripline BPMs of AWAKE (The Advanced Proton Driven Plasma Wakefield Acceleration Experiment at CERN) are required to measure the position of the single electron bunch with a resolution of 10 um rms, for the bunch charge of 100 pC to 1 nC. This paper presents a AFE-Digital processing system developed at TRIUMF (Canada) which achieved such performance. [...]
2018 - 6 p. - Published in : Springer Proc. Phys. 212 (2018) 237-242
In : International Conference on Technology and Instrumentation in Particle Physics 2017, Beijing, China, 21 - 26 May 2017, pp.237-242

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2018-12-07
12:38
Space charge impedance and electromagnetic field sin elliptical vacuum chambers / Migliorati, Mauro (Sapienza Universita e INFN, Roma I (IT)) ; Biancacci, Nicolo (CERN) ; Masullo, Maria Rosaria (Universita e sezione INFN di Napoli (IT)) ; Palumbo, Luigi (Sapienza Universita e INFN, Roma) ; Vaccaro, Vittorio (Universita e sezione INFN di Napoli (IT))
Starting from the electric fields produced by a point charge and a dipole travelling inside a circular vacuum chamber, in this paper we derive a formalism for a complete set of equations that describe the electromagnetic fields and the longitudinal and transverse coupling impedance arising by the interactions of a beam with a perfectly conducting pipe in the case of elliptic geometry [...]
CERN-ACC-NOTE-2018-0080.
- 2018. - 23 p.
Full text

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2018-12-07
10:50
Dynamic aperture studies for HL-LHC V1.0 / Cai, Yunhai ; De Maria, Riccardo (CERN) ; Giovannozzi, Massimo (CERN) ; Nosochkov, Yuri (SLAC National Accelerator Laboratory (US)) ; Van Der Veken, Frederik (University of Malta (MT))
Intense efforts have been devoted to the detailed study of the dynamic aperture of the HL-LHC V1.0 optics and layout version, without beam-beam effects, for several configurations, differing by optical properties or properties of the field quality of the new magnets for HL-LHC [...]
CERN-ACC-2018-0054.
- 2018. - 42 p.

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2018-12-07
05:30
Opportunities in Machine Learning for Particle Accelerators / Edelen, Auralee (SLAC) ; Mayes, Christopher (Fermilab) ; Bowring, Daniel (SLAC) ; Ratner, Daniel (PSI, Villigen) ; Adelmann, Andreas (RadiaSoft, Boulder) ; Ischebeck, Rasmus (Cornell U.) ; Snuverink, Jochem (Cornell U.) ; Agapov, Ilya (DESY) ; Kammering, Raimund (DESY) ; Edelen, Jonathan (RadiaSoft, Boulder) et al.
Machine learning (ML) is a subfield of artificial intelligence. [...]
arXiv:1811.03172.
- 25 p.
Fulltext

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2018-12-05
06:11
Colliding High Brightness Beams in the LHC / Pieloni, T (CERN) ; Buffat, X (CERN) ; Herr, W (CERN) ; Giachino, R (CERN) ; Metral, E (CERN) ; Papotti, G (CERN)
The CERN-LHC is a high energy particle collider, where intense proton bunches are brought into collision. In order to achieve optimum performance, the bunches must have a high brightness, leading to strong and significant beam-beam effects. [...]
2012 - 3 p. - Published in : (2012) , pp. MOP250 Fulltext: PDF;
In : 52nd ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams, Beijing, China, 17 - 21 Sep 2012, pp.MOP250

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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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