CERN Accelerating science


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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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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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Nb3Sn wire shape and cross sectional area inhomogeneity in Rutherford cables / Kelly, U. (Fraunhofer Inst., Kaiserslautern) ; Richter, S. (Fraunhofer Inst., Kaiserslautern) ; Redenbach, C. (Fraunhofer Inst., Kaiserslautern) ; Schladitz, K. (Fraunhofer Inst., Kaiserslautern) ; Scheuerlein, C. (CERN) ; Wolf, F. (CERN) ; Ebermann, P. (CERN) ; Lackner, F. (CERN) ; Schoerling, D. (CERN) ; Meinel, D. (BAM, Berlin)
During Rutherford cable production the wires are plastically deformed and their initially round shape is distorted. [...]
- 6 p.

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Fast scan spectrum analyser using a dispersive delay line for pulse compression / Wehrle, U
SPS-ARF-Note-84-26 ; CERN-SPS-ARF-Note-84-26 ; SPS-ARF-UW-gw-84-26.
- 1984. - 17 p.
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Implementation of Space Charge Forces in BimBim / Gottlob, Emmanuel
An numerical algorithm is described for the implementation of linearised coherent space charge forces into BimBim, an eigenvalue solver for the coherent modes of oscillation of multibunch beams in the presence of beam coupling impedance, beam-beam, transverse feedback and now space charge effects [...]
CERN-THESIS-2017-270 - 22 p.

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Vacuum Simulations in High Energy Accelerators and Distribution Properties of Continuous and Discrete Particle Motions / Aichinger, Ida
The underlying thesis on mathematical simulation methods in application and theory is structured into three parts [...]
CERN-THESIS-2017-252 - 159 p.

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Novel Ways of Heat Removal from Highly Irradiated Superconducting Windings in Accelerator Magnets / Bielert, Erwin R (Twente U., Enschede ; CERN) ; Verweij, Arjan P (Twente U., Enschede) ; ten Kate, Herman H J (Twente U., Enschede ; CERN)
Novel ideas of heat removal from superconducting windings in accelerator type magnets are investigated with the help of a recently developed and validated thermal model of a magnet cold mass implemented in COMSOL Multiphysics. Here the focus is on how to improve heat removal from the midplane of a superconducting quadrupole magnet, the area exposed to the highest radiation heat load [...]
2012 - 6 p. - Published in : Phys. Procedia 36 (2012) 818-823 Fulltext: PDF;

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EM-Measurements and Evaluation of the XRP (Roman Pot to be installed with UA9 Experiment) / Farricker, Aaron (CERN) ; Popovic, Branko Kosta (CERN) ; Sunar, Ezgi ; Vollinger, Christine (CERN)
This Note discusses the EM-measurements and the impedance evaluation carried out on the XRP-experimental roman pot to complement the installation of the UA9 Experiment layout in the SPS for studies with a double-crystal setup (ECR SPS-TECS-EC-0001) implemented in 2017. [...]
- 2017. - 12 p.

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QPS performance during the 2016 LHC run / Steckert, J (CERN) ; Denz, R (CERN)
The LHC quench protection system consisting of more than 13000 quench detectors and more than 6000 actuators (quench heater power supplies and energy extraction systems) reached an impact availability of 99.49% during the 2016 proton Run. This is an improvement by 80% compared to the 2015 figures. [...]
Geneva : CERN, 2017 - 4 p. - Published in : (2017) , pp. 221-224 Fulltext: PDF;
In : 7th Evian Workshop on LHC beam operation, Evian Les Bains, France, 13 - 15 Dec 2016, pp.221-224

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Operational and beam dynamics aspects of the RF system in 2016 / Timko, H (CERN) ; Baudrenghien, P (CERN) ; Brunner, O (CERN) ; Butterworth, A (CERN) ; Esteban Muller J (CERN) ; Shaposhnikova, E (CERN)
The operation of the LHC RF system and beam dynamics studies in 2016 are presented. A fault summary is given, showing a reliable operation. [...]
Geneva : CERN, 2017 - 6 p. - Published in : (2017) , pp. 193-198 Fulltext: PDF;
In : 7th Evian Workshop on LHC beam operation, Evian Les Bains, France, 13 - 15 Dec 2016, pp.193-198

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