CERN Accelerating science

All CERN Accelerators documents

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2018-10-13
04:16
NbTi/Nb/Cu multilayer shield for the superconducting shield (SuShi) septum / Barna, D. (Wigner RCP, Budapest) ; Novák, M. (Wigner RCP, Budapest) ; Brunner, K. (Wigner RCP, Budapest) ; Petrone, C. (CERN) ; Atanasov, M. (CERN) ; Feuvrier, J. (CERN) ; Pascal, M. (CERN)
A passive superconducting shield was proposed earlier to realize a high-field (3-4 T) septum magnet for the Future Circular Collider. [...]
arXiv:1809.04330.
- 9 p.
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2018-10-12
14:35
RF design of accelerating structure for the main linac of the klystron-based first stage of CLIC at 380 GeV / Liu, Jiayang (Tsinghua University, Beijing, China; CERN, Geneva, Switzerland) ; Grudiev, Alexej (CERN)
An alternative klystron-based scenario for the first stage of Compact Linear Collider (CLIC) at 380 GeV center-of-mass energy was proposed. [...]
CERN-ACC-2018-0034 ; CLIC-Note-1082.
- 2018. - 16 p.
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2018-10-12
14:26
Natural sources of geomagnetic field variations / Heilig, Balázs (Mining and Geological Survey of Hungary, Tihany, Hungary) ; Beggan, Ciarán (British Geological Survey, United Kingdom) ; Lichtenberger, János (Eötvös University, Budapest, Hungary)
The Earth’s magnetic field is a dynamic system and varies on a wide spectrum of timescales from microseconds to hundreds of millions of years. [...]
CERN-ACC-2018-0033 ; CLIC-Note-1083.
- 2018. - 16 p.
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2018-10-11
15:10
Luminosity Performance Limitations Due to the Beam-Beam Interaction in the Large Hadron Collider / Crouch, Matthew Paul
In the Large Hadron Collider (LHC), particle physics events are created by colliding high energy proton beams at a number of interaction points around the ring [...]
CERN-THESIS-2017-420 - 240 p.

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2018-10-11
14:05
Beam 2 Crystal Characterization Measurements with Proton Beams in the LHC / Rossi, Roberto (Sapienza Universita e INFN, Roma I (IT)) ; Aberle, Oliver (CERN) ; Andreassen, Odd Oyvind (CERN) ; Butcher, Mark (CERN) ; Dionisio Barreto, Cristovao Andre (CERN) ; Masi, Alessandro (CERN) ; Mirarchi, Daniele (University of Manchester (GB)) ; Montesano, Simone ; Lamas Garcia, Inigo (CERN) ; Redaelli, Stefano (CERN) et al.
In 2017, two new crystals were installed, with their goniometers, in the counterclockwise Beam 2 (B2) line [...]
CERN-ACC-NOTE-2018-0067.
- 2018. - 11 p.
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2018-10-11
05:15
Slow Extraction of Charged Ion Pulses from the REXEBIS / Bidault, Niels (CERN) ; Rodriguez, Jose Alberto (CERN) ; Lozano, Miguel (CERN) ; Sadovich, Sergey (CERN)
The Isotope mass Separator On-Line DEvice (ISOLDE) facility located at CERN, produces and transports Radioactive Ion Beams (RIBs) at low or high energy through the REX/HIE-ISOLDE linear accelerator, for nuclear physics, astrophysics, solid-state physics and applied-physics purposes. Increasing the charge state of the ions is a prerequisite for efficient acceleration and is accomplished by an Electron Beam Ion Source (REXEBIS). [...]
arXiv:1808.02713.- 2018-09-21 - Published in : AIP Conf. Proc. 2011 (2018) 070009 Fulltext: PDF;

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2018-10-11
00:30
Setting constraints on BR(top->qg) at FCC-hh / Dudko, Lev (M.V. Lomonosov Moscow State University (RU))
We present the analyses of the search for FCNC couplings of the top quark to a gluon and lights quarks (u,c), carried out in the context of the FCC-hh detector performance study group..
Geneva : CERN, 2018 Access to fulltext document: PDF;

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2018-10-10
18:28
Top-quark physics at the first CLIC stage / Zarnecki, Aleksander (University of Warsaw (PL))
The Compact Linear Collider (CLIC) is a mature option for a future electron-positron col- lider operating at centre-of-mass energies of up to 3 TeV. CLIC will be built and operated in a staged approach with three centre-of-mass energies currently assumed to be 380 GeV, 1.5 TeV and 3 TeV. [...]
CLICdp-Conf-2018-006.- Geneva : CERN, 2018 - 5. Fulltext: PDF;
In : XXXIX International Conference on High Energy Physics, Seoul, Kor, 4 - 11 Jul 2018

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2018-10-10
16:26
Round telescopic optics with large telescopic index / Fartoukh, Stephane (CERN) ; Amorim, David (Universite Grenoble-Alpes (FR)) ; Antipov, Sergey (CERN) ; Bracco, Chiara (CERN) ; Bruce, Roderik (CERN) ; Buffat, Xavier (CERN) ; Carlier, Felix Simon (Technische Universiteit Delft (NL)) ; Coello De Portugal - Martinez Vazquez, Jaime Maria (Universitat Politecnica Catalunya (ES)) ; Fuster Martinez, Nuria (CERN) ; Garcia-Tabares Valdivieso, Ana (Universidad Complutense (ES)) et al.
This paper highlights the main results from the 2017 LHC MD program which was deployed to commission round ATS optics with high telescopic index, and ultimately to study their properties in terms of long-range beam-beam effect and octupole thresholds for coherent instabilities (MD2269) [...]
CERN-ACC-2018-0032.
- 2018. - 24 p.

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2018-10-10
10:18
Thermal control for the two-beam module of the compact linear collider with computational fluid dynamics simulations of conjugate heat transfer problems, with subsidiary finite-element simulations / Lam, Edmond (ETH Zurich (CH)) ; Vamvakas, Alex (National Technical Univ. of Athens (GR)) ; Aicheler, Markus (Helsinki Institute of Physics (FI)) ; Vainola, Jukka Ilmari (Helsinki Institute of Physics (FI)) ; Doebert, Steffen (CERN)
Conjugate heat transfer simulations were performed for the two-beam module of the Compact Linear Collider (CLIC). [...]
CERN-ACC-2018-0031 ; CLIC-Note-1081.
- 2018. - 130 p.
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