CERN Accelerating science

All CERN Accelerators documents

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Summary of Working Group 8: Advanced and Novel Accelerators for High Energy Physics / Cros, B. (LPGP, Orsay) ; Muggli, P. (Munich, Max Planck Inst. ; CERN) ; Schroeder, C.B. (LBL, Berkeley) ; Tang, C. (Tsinghua U., Beijing)
We briefly summarize the work and discussions that occurred during the Working Group 8 sessions of the EAAC 2017, dedicated to advanced and novel accelerators for high energy physics applications..
- 4 p.

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What can go wrong in stochastic cooling systems
This paper discusses very practical aspects of stochastic cooling systems both during construction, running-in, operation and trouble shooting. Due to the high electronic gain, high sensitivity and large bandwidth of such systems, precautions have to be taken to avoid all sorts of EMI/EMC related problems as well as crosstalk and self-oscillations. [...]
CERN-OPEN-2018-001.- Geneva : CERN and ESI, 2016 - 7 p. Preprint: PDF; External link: Approve this document (restricted)
In : 2016 International Symposium on Experimental Robotics, Tokyo, Japan, 3 - 6 Oct 2016, pp.90-96

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Update of the HL-LHC operational scenarios for proton operation / Metral, Elias (CERN) ; Antipov, Sergey (CERN) ; Antoniou, Fanouria (CERN) ; Appleby, Robert Barrie (University of Manchester (GB)) ; Arduini, Gianluigi (CERN) ; Barranco Garcia, Javier (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Baudrenghien, Philippe (CERN) ; Biancacci, Nicolo (CERN) ; Bracco, Chiara (CERN) ; Bruce, Roderik (CERN) et al.
The main aim of this document is to have a clearly identified set of beam and machine parameters to be used for numerical simulations and performance assessment [...]
- 2018. - 42 p.
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Specification for coaxial high voltage cable type RG 220-U
CERN-SPS-Spec-77-116-ABT ; SPS-ABT-GV-vh-Spec-D4-115-Rev.
- 1977. - 12 p.
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Vibration Control Using a Dedicated Inertial Sensor / Balik, Gael (Annecy, LAPP) ; Caron, Bernard (Savoie U. (main)) ; Aimard, Benjamin (Annecy, LAPP) ; Brunetti, Laurent (Annecy, LAPP) ; Deleglise, Guillaume (Annecy, LAPP)
The Compact Linear Collider (CLIC) project is right in the development phase. In this prospect, the main objective of the final focus stabilization is to succeed in damping ground motion vibration at the sub-nanometer scale to avoid any unwanted motion of the two last final focus magnets. [...]
2018 - 8 p. - Published in : IEEE Sensors J. 18 (2018) 428-435

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Injector MD Days 2017   23 - 24 Mar 2017  - CERN, Geneva, Switzerland  / Bartosik, H (ed.) (CERN); Rumolo, G (ed.) (CERN)
The Injector Machine Development (MD) days 2017 were held on 23-24 March, 2017, at CERN with thefollowing main goals:Give a chance to the MD users to present their results and show the relevant progress made in 2016 onseveral fronts.Provide the MD users and the Operation (OP) crews with a general overview on the outcome and theimpact of all ongoing MD activities.Identify the open questions and consequently define - with priorities - a list of machine studies in theinjectors for 2017 (covering the operational beams, LHC Injectors Upgrade, High Luminosity LHC,Physics Beyond Colliders, other projects).Create the opportunity to collect and document the highlights of the 2016 MDs and define the perspectivesfor 2017.Discuss how to make best use of the MD time, in particular let the main MD user express their wishesand see whether/how OP teams can contribute to their fulfilment..
Geneva : CERN, 2017 CERN-Proceedings-2017-002
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Status of MERLIN / Rafique, H. (Huddersfield U. ; Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Appleby, R.B. (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Barlow, R.J. (Huddersfield U.) ; Molson, J.G. (Orsay, LAL) ; Tygier, S. (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Valloni, A. (Manchester U. ; CERN)
MERLIN is an accelerator physics library written in C++ which can be used for a range of accelerator tracking simulations, including collimation in hadron colliders. [...]
- 17 p.

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β∗ levelling using the LHC Lumi Server (MD 2427) / Hostettler, Michi (Universitaet Bern (CH)) ; Calia, Andrea (Ministere des affaires etrangeres et europeennes (FR)) ; Fuchsberger, Kajetan (CERN) ; Gabriel, Mathieu (CERN) ; Hemelsoet, Georges-Henry (CERN) ; Hruska, Marek (CERN) ; Jacquet, Delphine (CERN) ; Wenninger, Jorg (CERN)
Luminosity levelling by β∗ is the baseline scenario for HL-LHC and will possibly be used in 2018 LHC operation. [...]
- 2018. - 10 p.
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Intensity limits of the PSI Injector II cyclotron / Kolano, Anna (CERN ; PSI, Villigen ; Huddersfield U.) ; Adelmann, Andreas (PSI, Villigen) ; Barlow, Roger (Huddersfield U.) ; Baumgarten, Christian (PSI, Villigen)
We investigate limits on the current of the PSI Injector II high intensity separate-sector isochronous cyclotron, in its present configuration and after a proposed upgrade. Accelerator Driven Subcritical Reactors, neutron and neutrino experiments, and medical isotope production all benefit from increases in current, even at the ~ 10% level: the PSI cyclotrons provide relevant experience. [...]
arXiv:1707.07970.- 2018-03-21 - 6 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 885 (2018) 54-59 Preprint: PDF;

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Note Technique : Un premier bilan de fonctionnement de la pompe à chaleur du foyer visiteurs / Scaramelli, A (CERN)
23 Oct 1984.

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