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Specifications and Status of the New Electron Cooler for the CERN Antiproton Decelerator (AD)
/ Rossi, Adriana (CERN) ; Accettura, Carlotta (CERN) ; Andreazza, William (CERN) ; Bollazzi, Alessio (CERN) ; Cenede, Jean (CERN) ; Chritin, Nicolas (CERN) ; Coutron, Yannick (CERN) ; Ferreira Somoza, Jose (CERN) ; Frassier, Alexandre (CERN) ; Gamba, Davide (CERN) et al.
A new electron cooler for the Antiproton Decelerator (AD) is being designed at CERN, and will replace the current device (in operation for more than 40 years), during the next Long Shutdown (2026-2028). The functional specifications [ref. [...]
2024 - 6 p.
- Published in : JACoW COOL 2023 (2024) 5-10
Fulltext: PDF;
In : 14th International Workshop on Beam Cooling and Related Topics (COOL '23), Montreux, Switzerland, 8 - 13 Oct 2023, pp.5-10
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2.
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Electron beam studies on a beam position monitor based on Cherenkov diffraction radiation
/ Pakuza, Collette (JAI, UK) ; Malyzhenkov, Alexander (CERN) ; Schloegelhofer, Andreas (CERN) ; Aksoy, Avni (CERN) ; Spear, Bethany (JAI, UK) ; Senes, Eugenio (CERN) ; Lasocha, Kacper (CERN) ; Wendt, Manfred (CERN) ; Krupa, Michal (CERN) ; Chritin, Nicolas (CERN) et al.
A beam position monitor based on Cherenkov diffraction radiation (ChDR BPM) is currently under investigation to disentangle the electromagnetic field of an electron bunch from that of a proton bunch travelling together in time and space in the beam-line of the AWAKE plasma acceleration experiment at CERN. The signals from a horizontal pair of ChDR BPM radiators have been studied under a variety of beam conditions at the CLEAR electron beam test facility. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPL146
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPL146
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3.
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A New Luminosity Monitor for the LHC Run 3
/ Mazzoni, Stefano (CERN) ; Andreazza, William (CERN) ; Balci, Elif (CERN) ; Belohrad, David (CERN) ; Bravin, Enrico (CERN) ; Chritin, Nicolas (CERN) ; Esteban Felipe, Jose (CERN) ; Lefèvre, Thibaut (CERN) ; Martin Nieto, Miguel (CERN) ; Palm, Marcus (CERN)
The Beam Rate of Neutrals (BRAN) is a monitor that provides a relative luminosity measurement for the four LHC experiments. BRANs are used during operations as a tool to find and optimise collision and to cross-check experiments luminosity monitors. [...]
2022 - 5 p.
- Published in : JACoW IBIC 2022 (2022) 163-167
Fulltext: PDF;
In : 11th International Beam Instrumentation Conference (IBIC 2022), Cracow, Poland, 11 - 15 Sep 2022, pp.163-167
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4.
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Surface Polishing Facility for Superconducting RF Cavities at CERN
/ Ferreira, Leonel (CERN) ; Chritin, Nicolas (CERN) ; Ferreira, Rodrigo (CERN) ; Gerbet, Valentin (CERN)
A new SRF cavity polishing facility which covers the needs for present projects like the HL-LHC and its CRAB cavities as well as ongoing and future activities in the frame of the FCC study was commissioned at CERN in 2019. This facility can handle chemical and electrochemical polishing baths, can process both niobium and copper-based cavities on a wide range of geometries, starting at 400 MHz up to 1.3 GHz for elliptical type of cavities and more complex shapes as defined by the DQW and RFD CRAB design. [...]
2022 - 5 p.
- Published in : JACoW SRF 2021 (2022) 387-391
Fulltext: PDF;
In : 20th International Conference on RF Superconductivity (SRF 2021), Online, US, 28 Jun - 2 Jul 2021, pp.387-391
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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
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Development of a Beam-Gas Curtain Profile Monitor for the High Luminosity Upgrade of the LHC
/ Veness, Raymond (CERN) ; Ady, Marton (CERN) ; Chritin, Nicolas (CERN) ; Forck, Peter (Darmstadt, GSI) ; Glutting, Johanna (CERN) ; Jones, Owain Rhodri (CERN) ; Kersevan, Roberto (CERN) ; Marriott-Dodington, Thomas (CERN) ; Mazzoni, Stefano (CERN) ; Rossi, Adriana (CERN) et al.
High luminosity upgrades to the LHC at CERN and future energy frontier machines will require a new generation of minimally invasive profile measurement instruments. Production of a dense, focussed gas target allows beam-gas fluorescence to be exploited as an observable, giving an instrument suitable for installation even in regions of high magnetic field. [...]
JACoW, 2019 - 5 p.
- Published in : 10.18429/JACoW-IBIC2018-WEPB16
Published fulltext: PDF;
In : 7th International Beam Instrumentation Conference, Shanghai, China, 9 - 13 Sep, 2018, pp.WEPB16
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Commissioning of the prototype for a new gas curtain beam profile monitor using beam induced fluorescence for HL-LHC
/ Salehilashkajani, Amir (U. Liverpool (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Ady, Marton (CERN) ; Chritin, Nicolas (CERN) ; Forck, Peter (Darmstadt, GSI) ; Glutting, Johanna (CERN) ; Jones, Owain Rhodri (CERN) ; Kersevan, Roberto (CERN) ; Marriott-Dodington, Thomas (CERN) ; Mazzoni, Stefano (CERN) ; Rossi, Adriana (CERN) et al.
A new supersonic gas-jet curtain based beam profile monitor is under development for minimally invasive simultaneous transverse profile diagnostics of proton and electron beams, at pressures compatible with LHC. The monitor makes use of a thin gas-jet curtain angled at 45° with respect to the charged particle beams. [...]
CERN-ACC-2019-201.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPGW093
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW093
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Measuring beam size with the LHC Beam Gas Vertex detector
/ Würkner, Benedikt (CERN) ; Alexopoulos, Andreas (CERN) ; Barschel, Colin (CERN) ; Bay, Aurelio (Ecole Polytechnique, Lausanne) ; Blanc, Frederic (Ecole Polytechnique, Lausanne) ; Bravin, Enrico (CERN) ; Bregliozzi, Giuseppe (CERN) ; Chritin, Nicolas (CERN) ; Dehning, Bernd (CERN) ; Ferro-Luzzi, Massimiliano (CERN) et al.
The Beam Gas Vertex detector (BGV) is an innovative beam profile monitor being developed as part of the High Luminosity LHC (HL-LHC) project at CERN. The goal is to continually measure the transverse beam size by reconstructing tracks originating from beam-gas interactions using high precision tracking detectors. [...]
CERN-ACC-2019-205.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPGW084
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW084
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Generation and delivery of an ultraviolet laser beam for the RF-photoinjector of the AWAKE electron beam
/ Fedosseev, Valentin (CERN) ; Batsch, Fabian (CERN) ; Capelli, Candy (CERN) ; Chevallay, Eric (CERN) ; Chritin, Nicolas (CERN) ; Döbert, Steffen (CERN) ; Feniet, Thierry (CERN) ; Friebel, Florence (CERN) ; Gander, Pierre (CERN) ; Granados, Eduardo (CERN) et al.
In the AWAKE experiment, the electron beam is used to probe the proton-driven wakefield acceleration in plasma. Electron bunches are produced using an rf-gun equipped with a Cs$_2$Te photocathode illuminated by an ultraviolet (UV) laser pulse. [...]
CERN-ACC-2019-231.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-THPGW054
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPGW054
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10.
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Design of the New Proton Synchrotron Booster Absorber Scraper (PSBAS) in the Framework of the Large Hadron Collider Injection Upgrade (LIU) Project
/ Teofili, Lorenzo (U. Rome La Sapienza (main) ; CERN ; INFN, Rome) ; Briz Monago, Jose (CERN) ; Calviani, Marco (CERN) ; Chritin, Nicolas (CERN) ; Esala, Jaakko (CERN) ; Gilardoni, Simone (CERN) ; Lamas Garcia, Inigo (CERN) ; Maestre, Jorge (CERN) ; Migliorati, Mauro (U. Rome La Sapienza (main) ; CERN ; INFN, Rome) ; Polzin, Tobias (CERN) et al.
The Large Hadron Collider (LHC) Injector Upgrade (LIU) Project at CERN calls for increasing beam intensity for the LHC accelerator chain. Some machine components will not survive the new beam characteristics and need to be rebuilt for the new challenging scenario. [...]
2018 - 4 p.
- Published in : (2018) , pp. THPAK091
- Published in : J. Phys.: Conf. Ser. 1067 (2018) 082027
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.THPAK091
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