CERN Accelerating science

SPS and CNGS

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2017-07-18
06:30
COMPASS Polarized Target for Pion-induced Drell–Yan Experiment / Finger, M (Charles U.) ; Finger, M (Charles U.) ; Matousek, J (Charles U.) ; Pesek, M (Charles U.) /COMPASS ; COMPASS Polarized Target Group
The first ever polarized Drell–Yan (DY) measurement is under preparation at COMPASS experiment at CERN. One of the key parts is the low-temperature polarized target. [...]
2016 - 3 p. - Published in : Nucl. Part. Phys. Proc. 273-275 (2016) 2557-2559 Fulltext: PDF;
In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014, pp.2557-2559

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2017-07-15
06:17
Next Generation of Quench Detection Systems for the High-Luminosity Upgrade of the LHC / Denz, Reiner (CERN) ; de Matteis, Ernesto (CERN) ; Siemko, Andrzej (CERN) ; Steckert, Jens (CERN)
Abstract: The foreseen upgrade of the large hadron collider (LHC) for high-luminosity operation will incorporate a new generation of high field superconducting magnets. In particular, the current inner triplet magnets in LHC experiments A Toroidal LHC Apparatus (ATLAS) and Compact Muon Solenoid (CMS) in points 1 and 5 will be replaced by novel large aperture Nb3 Sn quadrupole magnets. [...]
2017 - Published in : IEEE Trans. Appl. Supercond. 27 (2017) 4700204

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2017-07-15
06:17
New laser polarization line at the ISOLDE facility / Kowalska, M (CERN) ; Aschenbrenner, P (CERN) ; Baranowski, M (Mickiewicz U., Poznan) ; Bissell, M L (Manchester U.) ; Gins, W (Leuven U.) ; Harding, R D (York U., England) ; Heylen, H (Heidelberg, Max Planck Inst.) ; Neyens, G (Leuven U.) ; Pallada, S (CERN ; Bohr Inst. ; Democritus U., Thrace) ; Severijns, N (Leuven U.) et al.
Following a growing interest in spin-polarized beams of radioactive ions, a new laser spin-polarization setup has been installed at the ISOLDE facility at CERN. The setup is located at the VITO beamline which aims to bring together several experimental techniques using polarized ions allowing for studies in nuclear physics, fundamental interactions, material and life sciences. [...]
2017 - 9 p. - Published in : J. Phys. G 44 (2017) 084005

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2017-07-14
07:05
Quench absorption coils: a quench protection concept for high-field superconducting accelerator magnets / Mentink, M (CERN) ; Salmi, T (Tampere U. of Tech.)
PAPER Quench absorption coils: a quench protection concept for high-field superconducting accelerator magnets M Mentink1 and T Salmi2 Published 3 May 2017 • © 2017 IOP Publishing Ltd Superconductor Science and Technology, Volume 30, Number 6 Focus on The Jan Evetts SUST Award 2017 Article PDF Figures References 124 Total downloads Turn on MathJax Get permission to re-use this article Share this article Article information Abstract A quench protection concept based on coupled secondary coils is studied for inductively transferring energy out of a quenching superconducting dipole and thus limiting the peak hotspot temperature. So-called 'quench absorption coils' are placed in close proximity to the superconducting coils and are connected in series with a diode for the purpose of preventing current transformation during regular operation. [...]
2017 - Published in : Supercond. Sci. Technol. 30 (2017) 064002

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2017-07-11
06:35
Post-accelerated beams at ISOLDE / Kadi, Y (CERN) ; Blumenfeld, Y (CERN ; Orsay, IPN) ; Delsolaro, W Venturini (CERN) ; Fraser, M A (CERN) ; Huyse, M (Leuven U.) ; Koufidou, A Papageorgiou (CERN) ; Rodriguez, J A (CERN) ; Wenander, F (CERN)
This paper presents an overview of the REX-ISOLDE post-accelerator and a detailed description of the high intensity and energy ISOLDE (HIE-ISOLDE) energy upgrade. The status of the HIE-ISOLDE post-accelerator and its performance, including time structure, beam spot size, beam purity, etc. [...]
2017 - 42 p. - Published in : J. Phys. G 44 (2017) 084003

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2017-07-04
10:28
Alignement des septa / Scandale, W
CERN-LabII-BT-WS-JK-Techn-Note-75-8.
- 1975. - 10 p.
Full text

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2017-07-01
06:19
Transverse beam splitting made operational: Key features of the multiturn extraction at the CERN Proton Synchrotron / Huschauer, A (CERN) ; Blas, A (CERN) ; Borburgh, J (CERN) ; Damjanovic, S (CERN) ; Gilardoni, S (CERN) ; Giovannozzi, M (CERN) ; Hourican, M (CERN) ; Kahle, K (CERN) ; Le Godec, G (CERN) ; Michels, O (CERN) et al.
Following a successful commissioning period, the multiturn extraction (MTE) at the CERN Proton Synchrotron (PS) has been applied for the fixed-target physics programme at the Super Proton Synchrotron (SPS) since September 2015. This exceptional extraction technique was proposed to replace the long-serving continuous transfer (CT) extraction, which has the drawback of inducing high activation in the ring. [...]
2017 - 15 p. - Published in : Phys. Rev. Accel. Beams 20 (2017) 061001 Fulltext: PDF;

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2017-07-01
06:19
Evaluation of the CERN Super Proton Synchrotron longitudinal impedance from measurements of the quadrupole frequency shift / Lasheen, A (CERN ; Orsay) ; Shaposhnikova, E (CERN)
Longitudinal instabilities are one of the main limitations in the CERN Super Proton Synchrotron (SPS) to reach the beam parameters required for the High Luminosity LHC project. In preparation to the SPS upgrade, possible remedies are studied by performing macroparticle simulations using the machine impedance model obtained from electromagnetic simulations and measurements. [...]
2017 - 15 p. - Published in : Phys. Rev. Accel. Beams 20 (2017) 064401 Fulltext: PDF;

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2017-06-21
10:10
The Future of Superconducting Technology for Particle Accelerators / Yamamoto, Akira (High Energy Accelerator Research Organization (JP))
Introduction: - Colliders constructed and operated - Future High Energy Colliders under Study - Superconducting Phases and Applications - Possible Choices among SC Materials Superconducting Magnets and the Future - Advances in SC Magnets for Accelerators - Nb3Sn for realizing Higher Field - NbTi to Nb3Sn for realizing High Field (> 10 T) - HL-LHC as a critical milestone for the Future of Acc [...]
CERN-ACC-SLIDES-2017-0008.
- 2015. - 56 p.
Full text

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2017-06-17
07:13
On-line dispersion estimation and correction scheme for the Compact Linear Collider / Pfingstner, J (Oslo U.) ; Adli, E (Oslo U.) ; Schulte, D (CERN)
The Compact Linear Collider (CLIC) has stringent component alignment tolerances in order to preserve the ultralow emittance of the utilized particle beams. Beam-based alignment techniques have been designed to relax these tolerances to realizable values. [...]
2017 - 16 p. - Published in : Phys. Rev. Accel. Beams 20 (2017) 011006 Fulltext: PDF;

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