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2021-06-18
14:04
Beam-Beam Long-Range Wire Compensation For Enhancing CERN LHC Performance / Poyet, Axel
In high intensity and high energy colliders such as the CERN Large Hadron Collider and its future luminosity upgrade, interactions between the two beams around the different interaction points are one of the machine performance limitations [...]
CERN-THESIS-2021-071 - 156 p.


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2021-06-18
09:48
Category Accelerators and storage rings - CERN-OBJ-AC-076.
Slice through an LHC bending magnet
Building 282

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2021-06-18
09:41
Category Accelerators and storage rings - CERN-OBJ-AC-075.
Slice through an LHC focusing magnet
Coupe quadripôle
Building 282

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2021-06-18
06:16
First demonstration of the use of crab cavities on hadron beams / Calaga, R (CERN) ; Alekou, A (Manchester U.) ; Antoniou, F (CERN) ; Appleby, R B (Manchester U.) ; Arnaudon, L (CERN) ; Artoos, K (CERN) ; Arduini, G (CERN) ; Baglin, V (CERN) ; Barriere, S (CERN) ; Bartosik, H (CERN) et al.
Many future particle colliders require beam crabbing to recover geometric luminosity loss from the nonzero crossing angle at the interaction point (IP). A first demonstration experiment of crabbing with hadron beams was successfully carried out with high energy protons. [...]
2021 - 6 p. - Published in : Phys. Rev. Accel. Beams 24 (2021) 062001 Fulltext: PDF;

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2021-06-18
06:16
Preparation and Execution of the Electrical Quality Assurance Program On the LHC Superconducting Circuits During the Second Long Shutdown / Ludwin, Jaromir (CERN) ; Bednarek, Mateusz (CERN) ; Bednarski, Mikolaj (CERN ; Cracow, INP) ; Bielewski, Jaroslaw (CERN ; Cracow, INP) ; Bogdali, Pawel (CERN ; Cracow, INP) ; D'Angelo, Giorgio (CERN) ; Daniluk, Witold (CERN ; Cracow, INP) ; Dutkiewicz, Erazm Maria (CERN ; Cracow, INP) ; Grzadziel, Dominik (CERN ; Cracow, INP) ; Janik, Grzegorz (CERN ; Cracow, INP) et al.
The electrical quality assurance (ELQA) of the superconducting circuits of CERN’s Large Hadron Collider (LHC) during its second Long Shutdown (LS2) requires the execution of vast measurement campaigns. Each of 1658 electrical circuits as well as the instrumentation of each of the 1746 individual cryo-assemblies housing magnets, bus-bars and other components of the superconducting circuits, has to undergo a series of tests. [...]
2021 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 31 (2021) 4002404 Fulltext: PDF;

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2021-06-18
06:16
Optimized injector schemes for FCC-ee positron production / Bai, B (Beijing, Inst. High Energy Phys. ; IJCLab, Orsay ; Beijing, GUCAS) ; Faus-Golfe, A (IJCLab, Orsay) ; Han, Y (IJCLab, Orsay) ; Chaikovska, I (IJCLab, Orsay) ; Zhou, Z (Beijing, Inst. High Energy Phys.) ; Chi, Y (Beijing, Inst. High Energy Phys.) ; Oide, K (CERN ; KEK, Tsukuba) ; Zimmermann, F (CERN)
Injectors and in particular the positron production systems are a crucial element in linear and circular colliders. The proposed FCC-ee injector linac accelerates both electrons and positrons up to 6 GeV in order to be injected into the Pre-Booster Ring (PBR) with a high intensity of 3.5 nC per bunch for the Z running mode. [...]
2021 - 14 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1009 (2021) 165463

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2021-06-18
06:16
Simulation of radiation environments / Alici, A (Queen Mary, U. of London (main)) ; Azhgirey, I (Serpukhov, IHEP) ; Dawson, I (Queen Mary, U. of London (main)) ; Huhtinen, M (CERN) ; Ivantchenko, V (Tomsk State U.) ; Kar, D (Witwatersrand U.) ; Karacson, M (CERN) ; Mallows, S (KIT, Karlsruhe) ; Manousos, T (CERN) ; Mandić, I (Stefan Inst., Ljubljana) et al.
Simulating radiation environments is crucial in the design phase of new hadron collider experiments or upgrades, especially when extrapolating to new centre of mass collision energies where previous experience cannot be relied on. [...]
2021. - 24 p.
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2021-06-18
06:16
The LHC machine and experiments / Alici, A (Bologna U.) ; Bomben, M (Paris U., VI-VII) ; Dawson, I (Queen Mary, U. of London) ; Sonneveld, J (Nikhef, Amsterdam)
The Large Hadron Collider is a 26.7 km circular accelerator based on a twin aperture superconducting magnet design with a design proton beam energy of 7 TeV. [...]
Geneva : CERN, 2021. - 12 p.
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2021-06-18
06:16
Overview of radiation effects on detector systems / Dawson, I (Queen Mary, U. of London) ; Faccio, F (CERN) ; Moll, M (CERN) ; Weidberg, A (Oxford U.)
In this section we give an overview of the effects of radiation on silicon detector systems in the LHC experiments. [...]
2021. - 19 p.
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2021-06-18
04:32
A very high energy hadron collider on the Moon / Beacham, James (Duke U.) ; Zimmermann, Frank (CERN)
The long-term prospect of building a hadron collider around the circumference of a great circle of the Moon is sketched. [...]
arXiv:2106.02048. - 28 p.
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