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CERN Accelerating science

All CERN Accelerators documents

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2024-06-19
16:59
Impact of Vibration to HL-LHC Performance During the FPF Facility Construction / Gamba, Davide (CERN) ; Bartosik, Hannes (CERN) ; Guinchard, Michael (CERN) ; Osborne, John Andrew (CERN) ; Balazs, Kincso (CERN) ; Vendeuvre, Camille (CERN) ; Wenninger, Jorg (CERN) ; Widuch, Kacper (CERN)
The Forward Physics Facility (FPF) is a proposed experimental site intended to be positioned several hundred meters downstream from the ATLAS interaction point. It aims to capture long- lived particles and neutrinos that travel along the beam collision axis and fall outside the ATLAS detector’s range. [...]
CERN-PBC-Notes-2024-003.- Geneva : CERN, 2024 - 18.

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2024-06-19
13:16
Beam loss studies for the P42 beamline at the CERN SPS North Area / Dyks, Luke Aidan (University of Oxford (GB)) ; Ahdida, Claudia (CERN) ; Banerjee, Dipanwita (CERN) ; Baratto Roldan, Anna (CERN) ; Bernhard, Johannes (CERN) ; Brugger, Markus (CERN) ; Charitonidis, Nikolaos (CERN) ; Fraser, Matthew Alexander (CERN) ; Gatignon, Lau (Lancaster University (GB)) ; Goillot, Alice Marie (CERN) et al.
The P42 beamline transports 400 GeV protons from the CERN SPS between the T4 and T10 targets. A secondary particle beam is produced at the T10 target and transported along the K12 beamline to the experimental cavern ECN3, presently housing the NA62 experiment. [...]
CERN-PBC-CONF-2024-005.- Geneva : CERN, 2024 - 4. Fulltext: PDF;

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2024-06-19
13:09
Characterisation of the optics of the TT24 and P42 beamlines in the CERN SPS North Area / Dyks, Luke Aidan (University of Oxford (GB)) ; Banerjee, Dipanwita (CERN) ; Baratto Roldan, Anna (CERN) ; Bernhard, Johannes (CERN) ; Brugger, Markus (CERN) ; Charitonidis, Nikolaos (CERN) ; Fraser, Matthew Alexander (CERN) ; Gatignon, Lau (Lancaster University (GB)) ; Goillot, Alice Marie (CERN) ; Gorn, Aleksandr (CERN) et al.
400 GeV protons extracted from the CERN SPS are transported to the T4 target via the TT20 transfer line. The P42 beamline then transports the protons that did not interact in the T4 target to the T10 target. [...]
CERN-PBC-CONF-2024-004.- Geneva : CERN, 2024 - 4. Fulltext: PDF;

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2024-06-18
07:49
LHC Optics Measurements from Transverse Damper for the High Intensity Frontier / Nissinen, Tuuli (CERN) ; Carlier, Felix (CERN) ; Le Garrec, Mael (CERN) ; Maclean, Ewen (CERN) ; Persson, Tobias (CERN) ; Tomás García, Rogelio (CERN) ; Wegscheider, Andreas (CERN)
Current and future accelerator projects are pushing the brightness and intensity frontier, creating new challenges for turn-by-turn based optics measurements. Transverse oscillations are limited in amplitude due to particle losses. [...]
2024 - 4 p. - Published in : JACoW HB 2023 (2024) 479-482 Fulltext: PDF;
In : 68th ICFA Advanced Beam Dynamics workshop on high-Intensity and High-Brightness Hadron Beams (HB 2023), CERN, Geneva, Switzerland, 9 - 13 Oct 2023, pp.479-482

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2024-06-18
07:49
Detector Response Studies of the ESS Ionization Chamber / Dolenc Kittelmann, Irena (ESS, Lund) ; Boutachkov, Plamen (Darmstadt, GSI) ; Effinger, Ewald (CERN) ; Grishin, Viatcheslav ; Lernevall, Anders ; Viganò, William ; Zamantzas, Christos
The European Spallation Source (ESS), currently under construction in Lund, Sweden, will be a pulsed neutron source based on a proton linac. The ESS linac is designed to deliver a 2GeV beam with peak current of 62.5mA at 14 Hz to a rotating tungsten target for neutron production. [...]
2023 - 4 p. - Published in : JACoW IBIC 2023 (2023) TUP004 Fulltext: PDF;
In : 12th International Beam Instrumentation Conference (IBIC 2023), Saskatoon, Canada, 10 - 14 Sep 2023, pp.TUP004

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2024-06-18
07:49
Detailed Magnetic Model Simulations of the H− Injection Chicane Magnets for the CERN PS Booster Upgrade, including Eddy Currents, and Influence on Beam Dynamics / Benedetto, Elena (CERN) ; Balhan, Bruno (CERN) ; Borburgh, Jan (CERN) ; Carli, Christian (CERN) ; Martini, Michel (CERN) ; Forte, Vincenzo (Clermont-Ferrand U. ; CERN)
The CERN PS Booster will be upgraded with an H^{−} injection system. The chicane magnets for the injection bump ramp-down in 5 ms and generate eddy currents in the inconel vacuum chamber which perturb the homogeneity of the magnetic field. [...]
2014 - 3 p. - Published in : 10.18429/JACoW-IPAC2014-TUPRI027 Fulltext: PDF; External link: Full-text at JACoW Server
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.TUPRI027

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2024-06-18
07:49
Flat Bunches in the LHC / Shaposhnikova, Elena (CERN) ; Argyropoulos, Theodoros (CERN) ; Baudrenghien, Philippe (CERN) ; Esteban Müller, Juan (CERN) ; Mastoridis, Themis (CERN) ; Papotti, Giulia (CERN) ; Salvant, Benoit (CERN) ; Timko, Helga (CERN) ; Bhat, Chandra (Fermilab) ; Burov, Alexey (Fermilab)
A high-harmonic RF system that could serve multiple purposes was proposed for the LHC. Possible applications of the second harmonic RF system include beam stabilisation in the longitudinal plane in the absence of wide-band longitudinal feedback and reduction of bunch peak line-density. [...]
2014 - 3 p. - Published in : 10.18429/JACoW-IPAC2014-TUPME028 Fulltext: PDF; External link: Full-text at JACoW Server
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.TUPME028

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2024-06-18
07:49
Novel Approaches in Characterization and Modelling of Fabrication Processes for SRF Components / Swieszek, Joanna (CERN ; U. Heidelberg (main)) ; Gallifa Terricabras, Adrià (CERN) ; Garlasché, Marco (CERN) ; Smakulska, Dorota (CERN)
In the past years, Finite Element Methods have been increasingly applied at CERN, with the aim of modelling fabrication processes for SRF components. Currently, many large deformation processes such as deep drawing, forging, hydroforming, and spinning, are being simulat-ed. [...]
2023 - 6 p. - Published in : JACoW SRF 2023 (2023) TUPTB038 Fulltext: PDF;
In : 21st International Conference on Radio-Frequency Superconductivity (SRF 2023), Grand Rapids, MI, United States, 22 - 30 Jun 2023, pp.TUPTB038

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2024-06-18
07:49
Cryogenic Current Comparators as Low Intensity Diagnostics for Ion Beams / Sieber, Thomas (Darmstadt, GSI) ; Crescimbeni, Lorenzo (U. Jena (main) ; Darmstadt, GSI) ; Haider, David (Darmstadt, GSI) ; Marsic, Nicolas (Denmark, Tech. U.) ; Schmelz, Matthias ; Schmidl, Frank (U. Jena (main)) ; Schwickert, Marcus ; Stöhlker, Thomas (Helmholtz Inst., Jena ; Darmstadt, GSI) ; Stolz, Ronny (Ilmenau Tech. U.) ; Tan, Jocelyn (CERN) et al.
The Cryogenic Current Comparator (CCC) is a SQUID based superconducting device for intensity measurement, firstly proposed as a beam diagnostics instrument in the 90s at GSI. After prove of principle the CCC was introduced into other facilities, attesting great potential for high resolution measurements but at the same time considerable mechanical and cryogenics challenges and costs. [...]
2023 - 5 p. - Published in : JACoW IBIC 2023 (2023) TUP036 Fulltext: PDF;
In : 12th International Beam Instrumentation Conference (IBIC 2023), Saskatoon, Canada, 10 - 14 Sep 2023, pp.TUP036

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2024-06-18
07:49
Collimator Scan Based Beam Halo Measurements in LHC and HL-LHC / Hermes, Pascal (CERN) ; Giovannozzi, Massimo (CERN) ; Montanari, Carlo Emilio (CERN ; U. Manchester (main)) ; Morales Vigo, Sara (CERN ; Cockcroft Inst. Accel. Sci. Tech.) ; Rakic, Milica (Ecole Polytechnique, Lausanne) ; Redaelli, Stefano (CERN) ; Salvachúa, Belen (CERN)
Measurements in the CERN Large Hadron Collider (LHC) have indicated that the population of the transverse beam halo is greater than that of a Gaussian distribution. With the upcoming High Luminosity upgrade (HL-LHC), the stored beam energy in the beam halo could become large enough to threaten the integrity of the collimation system. [...]
2023 - 5 p. - Published in : JACoW IBIC 2023 (2023) 164-168 Fulltext: PDF;
In : 12th International Beam Instrumentation Conference (IBIC 2023), Saskatoon, Canada, 10 - 14 Sep 2023, pp.164-168

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