CERN Accelerating science

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2017-05-27
11:22
Development and Optimisation of the SPS and LHC beam diagnostics based on Synchrotron Radiation monitors / Trad, Georges
Measuring the beam transverse emittance is fundamental in every accelerator, in particular for colliders, where its precise determination is essential to maximize the luminosity and thus the performance of the colliding beams.
 Synchrotron Radiation (SR) is a versatile tool for non-destructive bea [...]
CERN-THESIS-2014-390 - 232 p.

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2017-05-24
15:58
Thermophysical and mechanical characterization of advanced materials for the LHC collimation system / Bianchi, Laura
The aim of the thesis is to describe the methods employed for the thermo-physical and mechanical characterization and to show the results of the campaign conducted over two ceramic matrix composites, CFC FS140® and MG-6403-Fc, which are candidates as jaws materials in the LHC collimation system [...]
CERN-THESIS-2017-043 - 133 p.

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2017-05-24
09:29
THERMOPHYSICAL AND MECHANICAL CHARACTERIZATION OF ADVANCED MATERIALS FOR THE LHC COLLIMATION SYSTEM / Bianchi, Laura (Universita & INFN, Pisa (IT))
The aim of the thesis is to describe the methods employed for the thermo-physical and mechanical characterization and to show the results of the campaign conducted over two ceramic matrix composites, CFC FS140® and MG-6403-Fc, which are candidates as jaws materials in the LHC collimation system. [...]
CERN-ACC-NOTE-2017-0038.
- 2017. - 133 p.

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2017-05-23
06:09
Development of interconnected silicon micro-evaporators for the on-detector electronics cooling of the future ITS detector in the ALICE experiment at LHC / Francescon, Andrea (CERN ; U. Padua (main) ; INFN, Padua) ; Romagnoli, Giulia (CERN) ; Mapelli, Alessandro (CERN) ; Petagna, Paolo (CERN) ; Gargiulo, Corrado (CERN) ; Musa, Luciano (CERN) ; Thome, John R (Ecole Polytechnique, Lausanne) ; Del Col, Davide (U. Padua (main))
The thermal management of the on-detector electronics and the development of low mass integrated cooling systems have become a crucial task in the design of silicon tracking detectors for high energy physics applications. The use of microfabricated ultra-thin silicon cold plates has gained considerable interest in this sense. [...]
2016 - 10 p. - Published in : Appl. Thermal Eng. 93 (2016) 1367-1376

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2017-05-19
15:36
A Novel Method and Error Analysis for Beam Optics Measurements and Corrections at the Large Hadron Collider / Langner, Andy Sven
The Large Hadron Collider (LHC) is currently the world's largest particle accelerator with the highest center of mass energy in particle collision experiments [...]
CERN-THESIS-2016-299 - Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky, 2017-02-17. - 142 p.

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2017-05-15
14:08
Effect of a resonant excitation on the evolution of the beam emittance and halo population / Fitterer, Miriam (Fermi National Accelerator Lab. (US)) ; Stancari, Giulio (Fermi National Accelerator Lab. (US)) ; Valishev, Alexander (Fermi National Accelerator Lab. (US)) ; Bruce, Roderik (CERN) ; Papadopoulou, Parthena Stefania (University of Crete (GR)) ; Papotti, Giulia (CERN) ; Pellegrini, Dario (CERN) ; Redaelli, Stefano (CERN) ; Trad, Georges (CERN) ; Valuch, Daniel (CERN) et al.
Collimation with hollow electron beams or lenses (HEL) is currently one of the most promising concepts for active halo control in HL-LHC. [...]
CERN-ACC-NOTE-2017-0037.
- 2017. - 42 p.

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2017-05-10
11:04
Compensation of long-range beam-beam effects with octupole magnets: dynamic aperture simulations for the HL-LHC case and possible usage in LHC and FCC. / Barranco Garcia, Javier (Ecole Polytechnique Federale de Lausanne (CH)) ; Pieloni, Tatiana (Paul Scherrer Institut (CH))
The Large Hadron Collider has shown with various experimental verifications that one of the main limitations to the collider performance and to a possible upgrade can come from the long-range beam-beam effects which will define the operational parameters (intensities and emittances) and machine set-up (crossing angles and the minimum beta function at the interaction points). [...]
CERN-ACC-NOTE-2017-0036.
- 2017.

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2017-05-10
11:00
Dynamic Aperture Studies for HL-LHC with beam-beam effects / Pieloni, Tatiana (Paul Scherrer Institut (CH)) ; Banfi, Danilo ; Barranco Garcia, Javier (Ecole Polytechnique Federale de Lausanne (CH))
Various possible operational scenarios are foreseen for the High Luminosity Large Hadron Collider (HL-LHC). [...]
CERN-ACC-NOTE-2017-0035.
- 2017.

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2017-05-10
10:16
Calculation of Wakefields for the New Design of the LHCb Vertex Locator / Wanzenberg, Rainer (Deutsches Elektronen-Synchrotron (DE)) ; Zagorodnova, Olga (Deutsches Elektronen-Synchrotron (DE))
The upgrade of the LHCb detector in the LHCb experiment was planned in 2011. [...]
CERN-ACC-NOTE-2017-0034.
- 2016. - 19 p.
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2017-05-10
10:03
Calculation of Wakefields and Higher Order Modes for the New Design of the Vacuum Chamber of the ALICE Experiment for the HL-LHC / Wanzenberg, Rainer (Deutsches Elektronen-Synchrotron (DE)) ; Zagorodnova, Olga (Deutsches Elektronen-Synchrotron (DE))
The High Luminosity Large Hadron Collider (HL-LHC) project was started with the goal to extend the discovery potential of the Large Hadron Collider (LHC). [...]
CERN-ACC-NOTE-2017-0033.
- 2016. - 37 p.

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