CERN Accelerating science

All CERN Accelerators documents

Posledne pridané:
2017-04-25
16:24
Longitudinal coupling impedance of cavities for a relativistic beam / Dôme, G (CERN)
LABII-RF-Note-73-2 ; CERN-LABII-RF-Note-73-2.
- 1973. - 14 p.
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2017-04-25
14:25
Probing the behaviour of high brightness bunches in collision at 6.5 TeV and the interplay with an external source of noise (MD1433) / Buffat, Xavier (CERN) ; Biancacci, Nicolo (CERN) ; Furuseth, Sondre Vik ; Jacquet, Delphine (CERN) ; Metral, Elias (CERN) ; Pellegrini, Dario (CERN) ; Pojer, Mirko (CERN) ; Trad, Georges (CERN) ; Valuch, Daniel (CERN) ; Barranco Garcia, Javier (Ecole Polytechnique Federale de Lausanne (CH)) et al.
The results of an experiment aiming at colliding high brightness bunches at 6.5 TeV in the LHC and probing the interplay between external noise and head on beam-beam interaction are presented. [...]
CERN-ACC-NOTE-2017-0030.
- 2017. - 16 p.

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2017-04-25
09:25
MD468: Electron Cloud Reference Fills and Dependence on the Bunch Intensity / Iadarola, Giovanni (CERN) ; Dijkstal, Philipp (Technische Universitaet Darmstadt (DE)) ; Mether, Lotta (Ecole Polytechnique Federale de Lausanne (CH)) ; Romano, Annalisa (Technische Universitaet Darmstadt (DE)) ; Rumolo, Giovanni (CERN)
This note describes a Machine Development session performed to investigate the dependence of e-cloud build-up and instabilities on the bunch population of the circulating beam. [...]
CERN-ACC-NOTE-2017-0029.
- 2017.

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2017-04-25
09:19
MD421: Electron cloud studies on 25 ns beam variants (BCMS, 8b+4e) / Iadarola, Giovanni (CERN) ; Bartosik, Hannes (CERN) ; Belli, Eleonora (Sapienza Universita e INFN, Roma I (IT)) ; Carver, Lee Robert (CERN) ; Dijkstal, Philipp (Technische Universitaet Darmstadt (DE)) ; Li, Kevin Shing Bruce (CERN) ; Mether, Lotta (Ecole Polytechnique Federale de Lausanne (CH)) ; Romano, Annalisa (Technische Universitaet Darmstadt (DE)) ; Rumolo, Giovanni (CERN)
This note describes a Machine Development session performed with the main goal of studying the e-cloud mitigation that can be obtained by injecting mixed trains of 8b+4e beam type and trains having the standard 25 ns structure. [...]
CERN-ACC-NOTE-2017-0028.
- 2017.

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2017-04-25
09:01
MD 1856 - Landau Damping: Beam Transfer Functions and diffusion mechanisms / Tambasco, Claudia (Ecole Polytechnique Federale de Lausanne (CH)) ; Barranco Garcia, Javier (Ecole Polytechnique Federale de Lausanne (CH)) ; Boccardi, Andrea (CERN) ; Buffat, Xavier (CERN) ; Gasior, Marek (CERN) ; Lefevre, Thibaut (CERN) ; Levens, Tom (University of Glasgow (GB)) ; Pojer, Mirko (CERN) ; Salvachua Ferrando, Belen Maria (CERN) ; Solfaroli Camillocci, Matteo (CERN) et al.
In the 2012, 2015 and 2016 several instabilities were developing during the betatron squeeze where beam-beam interactions become stronger modifying the tune spread provided by the octupoles magnets. [...]
CERN-ACC-NOTE-2017-0027.
- 2017.
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2017-04-25
08:53
MD 1407 - Landau Damping: Beam Transfer Functions and diffusion mechanisms / Tambasco, Claudia (Ecole Polytechnique Federale de Lausanne (CH)) ; Barranco Garcia, Javier (Ecole Polytechnique Federale de Lausanne (CH)) ; Boccardi, Andrea (CERN) ; Buffat, Xavier (CERN) ; Gasior, Marek (CERN) ; Lefevre, Thibaut (CERN) ; Levens, Tom (University of Glasgow (GB)) ; Pojer, Mirko (CERN) ; Salvachua Ferrando, Belen Maria (CERN) ; Solfaroli Camillocci, Matteo (CERN) et al.
In the 2012, 2015 and 2016 run several instabilities were developing at flat-top, during and at the end of the betatron squeeze where beam-beam interactions are present. [...]
CERN-ACC-NOTE-2017-0026.
- 2017.
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2017-04-24
17:49
Test of the beam effect on vacuum arc occurrence in a high-gradient accelerating structure for the CLIC project / Senes, Eugenio
A new generation of lepton colliders capable of reaching TeV energies is pres- ently under development, and to succeed in this task it is necessary to show that the technology for such a machine is available [...]
CERN-THESIS-2017-029 - 90 p.

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2017-04-24
15:22
Report from LHC MD 1399: Effect of linear coupling on nonlinear observables in the LHC. / Maclean, Ewen Hamish (CERN) ; Carlier, Felix Simon (Technische Universiteit Delft (NL)) ; Giovannozzi, Massimo (CERN) ; Persson, Tobias Hakan Bjorn (CERN) ; Tomas Garcia, Rogelio (CERN)
Simulation work during Run 1 established that linear coupling had a large impact on nonlinear observables such as detuning with amplitude and dynamic aperture. [...]
CERN-ACC-NOTE-2017-0024.
- 2017. - 11 p.
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2017-04-20
11:19
CERN Yellow Report Front Cover Feasibility Study for BioLEIR / Ghithan, S (ed.) ; Roy, G (ed.) ; Schuh, S (ed.)
The biomedical community asked CERN to investigate the possibility to transform the Low Energy Ion Ring (LEIR) accelerator into a multidisciplinary, biomedical research facil- ity (BioLEIR) that could provide ample, high-quality beams of a range of light ions suitable for clinically oriented fundame [...]
CERN-2017-001-M. - Geneva : CERN, 2017. - 207 p. (CERN Yellow Reports: Monographs ; 1/2017)


10.23731/CYRM-2017-001
Fulltext - Report on the CERN Publishing Platform
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2017-04-19
15:03
Future Circular Collider Study FCC-he Baseline Parameters / Bruning, Oliver (CERN) ; Jowett, John (CERN) ; Klein, Max (University of Liverpool (GB)) ; Pellegrini, Dario (CERN) ; Schulte, Daniel (CERN) ; Zimmermann, Frank (CERN)
Initial considerations are presented on the FCC-he, the electron-hadron collider con guration within the Future Circular Collider study. This note considers arguments for the choice of the electron beam energy based on physics, ep scattering kinematics and cost. [...]
CERN-ACC-2017-0019.- Geneva : CERN, 2017 Fulltext: PDF;

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