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1.
LHeC IR Optics Design Integrated into the HL-LHC Lattice / Cruz Alaniz, Emilia (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Korostelev, Maxim (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Newton, David (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Tomás, Rogelio (CERN)
The LHeC is a proposed upgrade to the LHC to provide electron-proton collisions and explore the new regime of energy and intensity for lepton-nucleon scattering. The work presented here investigates optics and layout solutions allowing simultaneous nucleon-nucleon and lepton-nucleon collisions at separate interaction points compatible with the proposed HL-LHC lattice. [...]
2014 - 4 p. - Published in : , pp. TUPRO070 Fulltext: PDF; External link: Published version from JACoW
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.TUPRO070
2.
Tracking Studies in the LHeC Lattice / Cruz Alaniz, Emilia (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Newton, David (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Tomás, Rogelio (CERN)
The Large Hadron Electron Collider (LHeC) is a proposed upgrade of the LHC to provide electron-proton collisions and explore a new regime of energy and luminosity for nucleon-lepton scattering. A nominal design has previously been presented, featuring a lattice and optical configuration to focus one of the proton beams of the LHC (reaching a value of β*=10 cm) and to collide it head-on with an electron beam to produce collisions with the desired luminosity of L=10³³ cm⁻² s⁻¹. [...]
CERN-ACC-2015-315.- 2015 - 4 p. - Published in : (2015) , pp. MOPJE079 Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.MOPJE079
3.
Initial Estimate of Fringe Field Effects in HL-LHC using Frequency Map Analysis / Jones, Sam (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Newton, David (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Wolski, Andrzej (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.)
The planned High Luminosity upgrade to the LHC will require stronger focusing of the beam in the interaction regions. To achieve this, the inner triplet quadrupoles will be replaced with new magnets having larger gradient and aperture. [...]
2014 - 4 p. - Published in : , pp. TUPRO025 Fulltext: PDF; External link: Published version from JACoW
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.1067
4.
LHeC accelerator development / Cruz-Alaniz, Emilia (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Valloni, Alessandra (CERN)
SISSA, 2014 - Published in : PoS DIS2014 (2014) 247 Fulltext: PDF; External link: Published version from PoS
In : 22nd International Workshop on Deep-Inelastic Scattering and Related Subjects, Warsaw, Poland, 28 Apr - 02 May 2014, pp.247
5.
LHeC IR Optics Design Integrated Into the HL-LHC-Lattice / Korostelev, M (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Cruz-Alaniz, E (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Newton, D (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Wolski, A (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Bruning, O (CERN) ; Tomas, R (CERN)
The two main drivers for the CDR LHeC IR design were chromaticity and synchrotron radiation. Recently it has been proposed that the LHeC IR proton optics could make use of the Achromatic Telescopic Squeeze (ATS) [1] scheme, which benefits from higher arc beta functions for the correction of chromaticity. [...]
CERN-ACC-2013-0086.- Geneva : CERN, 2013 - 3 p. Fulltext: PDF;
In : 4th International Particle Accelerator Conference, Shanghai, China, 12 - 17 May 2013, pp.1034
6.
Design of the large hadron electron collider interaction region / Cruz-Alaniz, E (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Newton, D (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Tomás, R (CERN) ; Korostelev, M (Lancaster U. ; Cockcroft Inst. Accel. Sci. Tech.)
The large hadron electron collider (LHeC) is a proposed upgrade of the Large Hadron Collider (LHC) within the high luminosity LHC (HL-LHC) project, to provide electron-nucleon collisions and explore a new regime of energy and luminosity for deep inelastic scattering. The design of an interaction region for any collider is always a challenging task given that the beams are brought into crossing with the smallest beam sizes in a region where there are tight detector constraints. [...]
2015 - 11 p. - Published in : Phys. Rev. Spec. Top. Accel. Beams 18 (2015) 111001 APS Open Access article: PDF;
7.
Quality and Stability Studies of the Beams in the ELENA Ring Transfer Lines / Hunt, James (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Karamyshev, Oleg (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Resta-López, Javier (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Welsch, Carsten (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.)
The Extra Low ENergy Antiproton (ELENA) ring will provide seven different experiments at CERN with cooled beams of low energy (~100 keV) antiprotons. As a result, a system of transfer lines is being designed to ensure that each experiment receives a beam with its required properties. [...]
2015 - 3 p. - Published in : (2015) , pp. THPF107 Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.THPF107
8.
Non-Invasive Beam Profile Monitoring for the HL-LHC Hollow Electron Lens / Salehilashkajani, Amir (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Ady, Marton (CERN) ; Chritin, Nicolas S (CERN) ; Forck, Peter (Darmstadt, GSI) ; Jens, Noah (CERN) ; Jones, Owain Rhodri (CERN) ; Kersevan, Roberto (CERN) ; Kumar, Narender (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Lefèvre, Thibaut (CERN) ; Mazzoni, Stefano (CERN) et al.
A Hollow Electron Lens (HEL) is currently under development for the High-Luminosity upgrade of the Large Hadron Collider (HL-LHC). In this device, a hollow electron beam co-propagates with a central proton beam and provides active halo control in the LHC. [...]
JACoW, 2021 - 4 p. - Published in : JACoW IPAC 2021 (2021) 884-887 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.884-887
9.
A Supersonic Gas Jet-Based Beam Profile Monitor Using Fluorescence for HL-LHC / Zhang, Hao (Cockcroft Inst. Accel. Sci. Tech. ; U. Liverpool (main)) ; Ady, Marton (CERN) ; Alexandrova, Alexandra (Cockcroft Inst. Accel. Sci. Tech. ; U. Liverpool (main)) ; Barrios Diaz, Elena (CERN) ; Chritin, Nicolas (CERN) ; Forck, Peter (Darmstadt, GSI) ; Jones, Owain Rhodri (CERN) ; Kersevan, Roberto (CERN) ; Marriott-Dodington, Thomas (CERN) ; Mazzoni, Stefano (CERN) et al.
The High-Luminosity Large Hadron Collider (HL-LHC) project aims to increase the machine luminosity by a factor of 10 as compared to the LHC's design value. To achieve this goal, a special type of electron lens is being developed. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-WEPAF034 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPAF034
10.
Optical Beam Loss Monitor for RF Cavity Characterisation / Alexandrova, Alexandra (Cockcroft Inst. Accel. Sci. Tech.) ; Brynes, Alexander (Daresbury) ; Devlin, Lee (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Effinger, Ewald (CERN) ; Holzer, Eva Barbara (CERN) ; Jackson, Frank (Daresbury ; Cockcroft Inst. Accel. Sci. Tech.) ; Kastriotou, Maria (U. Liverpool (main) ; CERN) ; Scott, Duncan (Daresbury ; Cockcroft Inst. Accel. Sci. Tech.) ; Tzoganis, Vasilis (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Welsch, Carsten (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) et al.
Beam Loss Monitors (BLMs) based on optical fibres have been under development for many years as an alternative solution to commonly used methods, such as ionisation chambers. Optical BLMs (oBLMs) maintain standard BLM functionality but can also be used for machine and personal protection. [...]
2018 - 4 p. - Published in : 10.18429/JACoW-IBIC2017-WEPWC01 Fulltext: PDF;
In : 6th International Beam Instrumentation Conference, Grand Rapids, MI, USA, 20 -24 Aug 2017, pp.WEPWC01

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