CERN Accelerating science

LHC

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2018-10-11
15:10
Luminosity Performance Limitations Due to the Beam-Beam Interaction in the Large Hadron Collider / Crouch, Matthew Paul
In the Large Hadron Collider (LHC), particle physics events are created by colliding high energy proton beams at a number of interaction points around the ring [...]
CERN-THESIS-2017-420 - 240 p.

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2018-10-11
14:05
Beam 2 Crystal Characterization Measurements with Proton Beams in the LHC / Rossi, Roberto (Sapienza Universita e INFN, Roma I (IT)) ; Aberle, Oliver (CERN) ; Andreassen, Odd Oyvind (CERN) ; Butcher, Mark (CERN) ; Dionisio Barreto, Cristovao Andre (CERN) ; Masi, Alessandro (CERN) ; Mirarchi, Daniele (University of Manchester (GB)) ; Montesano, Simone ; Lamas Garcia, Inigo (CERN) ; Redaelli, Stefano (CERN) et al.
In 2017, two new crystals were installed, with their goniometers, in the counterclockwise Beam 2 (B2) line [...]
CERN-ACC-NOTE-2018-0067.
- 2018. - 11 p.
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2018-10-10
16:26
Round telescopic optics with large telescopic index / Fartoukh, Stephane (CERN) ; Amorim, David (Universite Grenoble-Alpes (FR)) ; Antipov, Sergey (CERN) ; Bracco, Chiara (CERN) ; Bruce, Roderik (CERN) ; Buffat, Xavier (CERN) ; Carlier, Felix Simon (Technische Universiteit Delft (NL)) ; Coello De Portugal - Martinez Vazquez, Jaime Maria (Universitat Politecnica Catalunya (ES)) ; Fuster Martinez, Nuria (CERN) ; Garcia-Tabares Valdivieso, Ana (Universidad Complutense (ES)) et al.
This paper highlights the main results from the 2017 LHC MD program which was deployed to commission round ATS optics with high telescopic index, and ultimately to study their properties in terms of long-range beam-beam effect and octupole thresholds for coherent instabilities (MD2269) [...]
CERN-ACC-2018-0032.
- 2018. - 24 p.

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2018-10-08
18:36
Design and Optimization of the Beam Orbit and Oscillation Measurement System for the Large Hadron Collider / Olexa, Jakub
The Large Hadron Collider (LHC) accommodates some 100 collimators whose role is to perform beam cleaning and protect the machine from dangerous particle losses [...]
CERN-THESIS-2018-185 - 236 p.

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2018-10-03
09:33
LHC Availability 2018: Technical Stop 1 to Technical Stop 2 / Todd, Benjamin (CERN) ; Ponce, Laurette (CERN) ; Apollonio, Andrea (CERN) ; Walsh, David John (CERN)
This document summarises the LHC machine availability for the period of Technical Stop 1 (TS1) to Technical Stop 2 (TS2) in 2018. [...]
CERN-ACC-NOTE-2018-0065.
- 2018. - 18 p.
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2018-10-02
12:58
Feasibility of elastic scattering measurements in the dip region at TEVATRON energies in the LHC / Burkhardt, Helmut (CERN) ; Grafstrom, Per (Universita e INFN, Bologna (IT))
We look into the feasibility of measuring pp forward scattering in the dip region around −t = 0.6 GeV2 at the LHC at energies comparable to the pp measurements at the TEVATRON
CERN-ACC-NOTE-2018-0064.
- 2018. - 3 p.
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2018-09-28
06:22
Helium II heat transfer in LHC magnets : Polyimide cable insulation / Winkler, Tiemo
Today’s large particle accelerators like the LHC at CERN are using superconducting materials as a construction material for magnets [...]
CERN-THESIS-2017-419. - 131 p.


10.3990/1.9789036543538
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2018-09-20
15:05
A High-Brillance Angstrom-FEL based on the LHeC / Nergiz, Zafer (Ankara University Institute of Accelerator Technologies (TR)) ; Aksakal, Husnu (Kahramanmaras Sutcu Imam Universitesi (TR)) ; Zimmermann, Frank (CERN)
The Large Hadron electron Collider (LHeC) is a proposed future particle physics project colliding 60 GeV electrons from a recirculating energy-recovery linac (ERL) with 7 TeV protons stored in the LHC. [...]
CERN-ACC-NOTE-2018-0061 ; ARIES 18-001.
- 2018. - 6 p.
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2018-09-19
15:03
Electron Cloud Effects in the Circulant Matrix Model / Gottlob, Emmanuel Markus
The existing models for the electron cloud driven instabilities either reduce the complexity of the cloud dynamics to the one of an impedance, in order to use well established analytical beam stability models or rely on large computational power for full description of this dynamics by macro-particl [...]
CERN-THESIS-2018-160 - 25 p.

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2018-08-30
14:52
Electron cloud studies for the LHC TDI and HL-LHC TDIS / Skripka, Galina (CERN) ; Iadarola, Giovanni (CERN)
The LHC injection beam stopper (TDI) is designed to protect the machine in case of injection kicker malfunctioning. [...]
CERN-ACC-NOTE-2018-0060.
- 2018.
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