CERN Accelerating science


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Longitudinal intensity effects in the CERN Large Hadron Collider / Esteban Muller, Juan
This PhD thesis provides an improved knowledge of the LHC longitudinal impedance model and a better understanding of the longitudinal intensity effects [...]
CERN-THESIS-2016-066 - 149 p.

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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. [...]
- 2015. - 11 p.
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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. [...]
- 2015. - 10 p.
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LHC Availability 2016: Restart to Technical Stop 1 / Todd, Benjamin (CERN) ; Ponce, Laurette (CERN) ; Apollonio, Andrea (CERN)
This document summarises the LHC machine availability for the period of Restart to Technical Stop 1 (TS1) in 2016. [...]
- 2016.
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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..
- 2016. - 8 p.
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The CMS fast beams condition monitor back-end electronics based on MicroTCA technology: status and development / Zagozdzinska, Agnieszka A (Warsaw U. of Tech.) ; Dabrowski, Anne E (CERN) ; Pozniak, Krzysztof T (Warsaw U. of Tech.)
The Fast Beams Condition Monitor (BCM1F), upgraded for LHC Run II, is used to measure the online luminosity andmachine induced background for the CMS experiment. The detector consists of 24 single-crystal CVD diamond sensorsthat are read out with a custom fast front-end chip fabricated in 130 nm CMOS technology. [...]
2015 - 7 p. - Published in : Proc. SPIE 9662 (2015) 966235
In : Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2015, Wilga, Poland, 25 May 2015, pp.966235

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Cryogenics for high-energy particle accelerators: highlights from the first fifty years / Lebrun, Philippe (CERN)
Applied superconductivity has become a key technology for high-energy particle accelerators, allowing to reach higher beam energy while containing size, capital expenditure and operating costs. [...]
- 2016. - 12 p.
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CHARM Facility Test Area Radiation Field Description / Thornton, Adam (University of Surrey (GB))
Specification document summarising the radiation field of the CHARM facility test area. [...]
- 2016. - 51 p.
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A novel Beam Halo Monitor for the CMS experiment at the LHC / Orfanelli, S (Natl. Tech. U., Athens ; CERN) ; Dabrowski, A E (CERN) ; Giunta, M (CERN) ; Loos, R (CERN) ; Ambrose, M J (Minnesota U.) ; Mans, J (Minnesota U.) ; Rusack, R (Minnesota U.) ; Stifter, K (Minnesota U.) ; Stickland, D (Princeton U.) ; Fabbri, F (INFN, Bologna) et al.
A novel Beam Halo Monitor (BHM) has been designed and built for the CMS experiment at the LHC. It will provide an online, bunch-by-bunch measurement of background particles created by interactions of the proton beam with residual gas molecules in the vacuum chamber or with collimator material upstream of CMS. [...]
2015 - Published in : J. Instrum. 10 (2015) P11011 IOP Open Access article: PDF;

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Studies of the $B^{0}_{s}-\overline{B}^{0}_{s}$ in the CMS experiment at the LHC / Fedi, Giacomo
The B0s-B0sbar system was investigated using the J/ψ(μ+μ−)φ(K+K−) decay channel [...]
CERN-THESIS-2016-026. - 161 p.

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