CERN Accelerating science

All CERN Accelerators documents

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2018-06-16
06:17
RF pulse shape control in the compact linear collider test facility / Kononenko, Oleksiy (SLAC ; CERN) ; Corsini, Roberto (CERN)
The Compact Linear Collider (CLIC) is a study for an electron–positron machine aiming at accelerating and colliding particles at the next energy frontier. The CLIC concept is based on the novel two-beam acceleration scheme, where a high-current low-energy drive beam generates RF in series of power extraction and transfer structures accelerating the low-current main beam. [...]
2018 - 9 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 897 (2018) 72-80 Fulltext: PDF;

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2018-06-15
13:27
Arc cell options for the HE-LHC / Keintzel, Jacqueline (Vienna University of Technology (AT))
The optics design of the High Energy Large Hadron Collider (HE-LHC), which aims to reach approximately twice the centre of mass energy of the Large Hadron Collider (LHC), in an already existing tunnel is challenging which leads to a trade off between energy reach, aperture and survey offset. Different arc cell options have been stud- ied to find the best arc design of the HE-LHC, where constraints like inter-element distances and tunnel geometry need to be considered as well as the reachable center of mass energy. [...]
Geneva : CERN, 2018 Access to fulltext document: PDF;

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2018-06-15
06:56
Investigation on the sensitivity of a 65nm Flash-based FPGA for CERN applications / Tsiligiannis, Georgios (CERN) ; Ferraro, Rudy (CERN) ; Danzeca, Salvatore (CERN) ; Masi, Alessandro (CERN) ; Brugger, Markus (CERN) ; Saigné, Frédéric (Montpellier U.)
The continuous need for upgrading the instrumentation and control electronics operating in various CERN experiments and along the LHC accelerator, has driven the qualification process of the new Flash-Based SmartFusion2 FPGAs; a leading candidate to be embedded in future systems. The radiation testing conditions have been chosen to fit the unique CERN environment, while the setup is carefully chosen to qualify all the subcomponents of the SoC FPGA that the engineering teams of CERN are considering for exploitation..
2017 - 4 p. - Published in : 10.1109/RADECS.2016.8093209
In : 16th European Conference on Radiation and its Effects on Components and Systems, Bremen, Germany, 19 - 23 Sep 2016, pp.8093209

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2018-06-14
17:38
Impact of filling scheme on beam induced RF heating in CERN LHC and HL-LHC / Giordano, Francesco
At CERN, after the first maintenance cycle (Long Shutdown 1, LS1) of the Large Hadron Collider (LHC), several sectors of the accelerator present a beam-induced heating much larger than expectations [...]
CERN-THESIS-2017-393 - 104 p.

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2018-06-13
06:11
R2E of critical vacuum controls in the LHC / Krakowski, P (CERN) ; Gomes, P (CERN) ; Pigny, G (CERN)
This paper describes the environment to which the critical vacuum controls is exposed in the LHC and presents the results of their radiation tests. Based on that analysis the mitigation actions for vacuum systems are proposed..
2017 - 4 p. - Published in : 10.1109/RADECS.2016.8093190
In : 16th European Conference on Radiation and its Effects on Components and Systems, Bremen, Germany, 19 - 23 Sep 2016, pp.8093190

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2018-06-12
10:25
Redesign of CERN LINAC3 RFQ for Lead 29+ / Benedetti, Stefano (CERN) ; Bellodi, Giulia (CERN) ; Lallement, Jean-Baptiste (CERN) ; Lombardi, Alessandra (CERN)
CERN Linac3 is at the heart of the CERN Heavy Ion Facility, providing 4.2 MeV/u ion beams to the Low Energy Ion Ring (LEIR) [...]
CERN-ACC-NOTE-2018-0044.
- 2018.

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2018-06-12
10:20
The 2017 Xe run at CERN Linac3: measurements and beam dynamics simulations / Benedetti, Stefano (CERN) ; Bellodi, Giulia (CERN) ; Kuchler, Detlef (CERN) ; Lombardi, Alessandra (CERN) ; Wenander, Fredrik John Carl (CERN) ; Toivanen, Ville Aleksi
At CERN quark-gluon plasma and fixed target ion experiments are performed thanks to the Heavy-ion Facility, composed by different accelerators. [...]
CERN-ACC-NOTE-2018-0043.
- 2018.

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2018-06-12
09:58
Study of Collective Effects in the FCC-ee Collider / Zobov, Mikhail (Frascati) ; Belli, Eleonora (CERN ; Rome U. ; INFN, Rome) ; Castorina, Giovanni (Rome U. ; INFN, Rome) ; Migliorati, Mauro (Rome U. ; INFN, Rome) ; Persichelli, Serena (LBNL, Berkeley) ; Rumolo, Giovanni (CERN) ; Spataro, Bruno (Frascati)
The Future Circular Collider (FCC) study aims at designing different options of a post-LHC collider. [...]
arXiv:1805.08466.
- 6 p.
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2018-06-11
11:30
About flat telescopic optics for the future operation of the LHC / Fartoukh, Stephane (CERN) ; Karastathis, Nikos (CERN) ; Ponce, Laurette (CERN) ; Solfaroli Camillocci, Matteo (CERN) ; Tomas Garcia, Rogelio (CERN)
This report discusses and motivates the possible deployment of flat collision optics for the future operation of the LHC. [...]
CERN-ACC-2018-0018.
- 2018. - 63 p.

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2018-06-07
06:31
Test results of a 7.5 kA semi-conductor prototype switch as modular switchgear in energy extraction systems for the HL-LHC magnet test facility / Coelingh, G J (CERN) ; Austnes, P F (CERN) ; Bednarek, M (CERN) ; Dahlerup-Petersen, K (CERN) ; Dinius, A (CERN) ; Erokhin, A (CERN) ; Favre, M (CERN) ; Karaventzas, V D (CERN) ; Michniuk, S (CERN) ; Panev, B (CERN) et al.
The superconducting magnets, intended for use in the LHC High Luminosity (HL-LHC) project at CERN are based on Nb$_3$Sn technology. Powering of prototypes of such magnets with up to tens of kilo-Amperes is required for detailed studies of the quench behavior as well as an evaluation of the associated magnet protection equipment. [...]
2016 - 6 p. - Published in : 10.1109/IPMHVC.2016.8012877
In : 2016 IEEE International Power Modulator and High Voltage Conference, San Francisco, CA, USA, 5 - 9 Jul 2016, pp.514-519

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