CERN Accelerating science

Projects, Upgrade and Consolidation Projects

Latest additions:
2016-12-02
17:20
Parameters for aperture calculations at injection for HL-LHC* / Bruce, Roderik (CERN) ; Bracco, Chiara (CERN) ; De Maria, Riccardo (CERN) ; Giovannozzi, Massimo (CERN) ; Redaelli, Stefano (CERN) ; Tomas Garcia, Rogelio (CERN) ; Velotti, Francesco Maria (CERN) ; Wenninger, Jorg (CERN)
Accurate evaluations of the margins of available aperture in the LHC and HL-LHC are very important, in order to judge if proposed optics and hardware are adequate, and to push the machine performance. [...]
CERN-ACC-2016-0328.
- 2016. - 25 p.
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2016-10-26
11:21
Cavity Voltage Phase Modulation MD / Mastoridis, Themistoklis (California Polytechnic State Univ. (US)) ; Baudrenghien, Philippe (CERN) ; Molendijk, John (CERN) ; Timko, Helga (CERN)
The LHC RF/LLRF system is currently configured for extremely stable RF voltage to minimize transient beam loading effects. [...]
CERN-ACC-NOTE-2016-0061.
- 2016. - 6 p.
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2016-09-26
17:46
Case study of a magnetic system for low-energy machines / Schoerling, Daniel (CERN)
The extra low-energy antiproton ring (ELENA) is a CERN particle decelerator with the purpose to deliver antiprotons at lowest energies aiming to enhance the study of antimatter. The hexagonal shaped ring with a circumference of about 30 m will decelerate antiprotons from momenta of 100 to 13.7 MeV/c. [...]
CERN-ACC-2016-0114.- Geneva : CERN, 2016 - 17 p. - Published in : Phys. Rev. Spec. Top. Accel. Beams 19 (2016) 1-17 APS Open Access article: PDF; Fulltext: PDF;

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2016-07-25
11:01
Intensity effects in the formation of stable islands in phase space during the multi-turn extraction process at the CERN PS / machida, Shinji (Rutherford) ; Prior, Chris (Rutherford) ; Gilardoni, Simone (CERN) ; Giovannozzi, Massimo (CERN) ; Hirlander, Simon (CERN ; TU Vienna) ; Huschauer, Alexander (CERN ; TU Vienna)
The CERN PS utilises a Multi-Turn Extraction (MTE) scheme to stretch the beam pulse length to optimise the filling process of the SPS. [...]
CERN-ACC-2016-0102.
- 2016. - 6 p.
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2016-07-20
14:05
Transverse beam splitting made operational: Recent progress of the multi-turn extraction at the CERN proton synchrotron / Huschauer, Alexander (CERN) ; Borburgh, Jan (CERN) ; Damjanovic, Sanja (CERN) ; Gilardoni, Simone (CERN) ; Giovannozzi, Massimo (CERN) ; Hourican, Michael (CERN) ; Kahle, Karsten (CERN) ; Michels, Olivier (CERN) ; Sterbini, Guido (CERN) ; Hernalsteens, Cedric (CERN) et al.
Following a successful commissioning period, the Multi-Turn 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. [...]
CERN-ACC-2016-0100.
- 2016. - 7 p.
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2016-07-14
09:11
Use of RF quadrupole structures to enhance stability in accelerator rings / Schenk, Michael (Ecole Polytechnique, Lausanne ; CERN) ; Grudiev, Alexej (CERN) ; Li, Kevin Shing Bruce (CERN) ; Papke, Kai (CERN)
The beams required for the high luminosity upgrade of the Large Hadron Collider (HL-LHC) at CERN call for efficient mechanisms to suppress transverse collective instabilities. [...]
CERN-ACC-2016-0096.
- 2016. - 7 p.
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2016-07-08
14:57
Required modifications of the ESS accelerator architecture for ESSnuSB / Gerigk, Frank (CERN) ; Montesinos, Eric (CERN)
This report is a summary of major modifications to the ESS nominal linac layout, which are needed to enable the operation of the ESS linac as 5 MW proton driver for the ESSnuSB initiative in addition to its regular operation as 5 MW ESS proton source [...]
CERN-ACC-NOTE-2016-0050.
- 2016.
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2016-07-06
10:55
Sub-LET Threshold SEE Cross Section Dependency with Ion Energy / Garcia Alia, Ruben (CERN) ; Bahamonde Castro, Cristina (CERN) ; Brandenburg, Sytze (University of Groningen) ; Brugger, Markus (CERN) ; Daly, Eamonn (ESA) ; Ferlet-Cavrois, Veronique (ESA) ; Gaillard, Remi ; Hoeffgen, Stefan (Fraunhofer INT) ; Menicucci, Alessandra (Universita e INFN Roma Tor Vergata (IT)) ; Metzger, Stefan (Fraunhofer INT) et al.
This study focuses on the ion species and energy dependence of the heavy ion SEE cross section in the sub-let threshold region through a set of experimental data. [...]
CERN-ACC-NOTE-2016-0049.
- 2015. - 11 p.
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2016-07-06
10:38
SEL Hardness Assurance in a Mixed Radiation Field / Garcia Alia, Ruben (CERN) ; Brugger, Markus (CERN) ; Danzeca, Salvatore (CERN) ; Ferlet-Cavrois, Veronique (Rutherford Appleton Laboratory) ; Frost, Christopher (Consultant in St Arnoult France) ; Gaillard, Remi ; Mekki, Julien (Centre Spatial de Toulouse (FR)) ; Saigné, Frédéric (Institut d'Electronique du Sud, Université de Montpellier) ; Thornton, Adam (University of Surrey (GB)) ; Uznanski, Slawosz (CERN) et al.
This paper explores the relationship between monoenergetic and mixed-field Single Event Latchup (SEL) cross sections, concluding for components with a very strong energy dependence and highly-energetic environments, test results from monoenergetic or soft mixed-field spectra can significantly underestimate the operational failure rate. [...]
CERN-ACC-NOTE-2016-0048.
- 2015. - 10 p.
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2016-07-01
09:14
Summary of the Chamonix 2016 Session on HL-LHC / Bruning, Oliver (CERN) ; Papaphilippou, Yannis (CERN) ; Rossi, Lucio (CERN)
This paper summarises the HL-LHC session of the 2016 Chamonix performance workshop that took place from January 25th until 28th 2016 in Hotel Les Aiglons in Chamonix..
CERN-ACC-NOTE-2016-0046.
- 2016. - 8 p.
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