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Results on the FCC-hh Beam Screen at the KIT Electron Storage Ring KARA
/ Gonzalez, Luis (Frascati ; CERN) ; Baglin, Vincent (CERN) ; Bellafont, Ignasi (CELLS - ALBA, LLS ; CERN) ; Casalbuoni, Sara (KIT, Karlsruhe) ; Chiggiato, Paolo (CERN) ; Garion, Cedric (CERN) ; Gil Costa, Miguel (Madrid, CIEMAT ; CERN) ; Huttel, Erhard (KIT, Karlsruhe) ; Kersevan, Roberto (CERN) ; Perez, Francis (CELLS - ALBA, LLS)
In the framework of the EuroCirCol collaboration* (work package 4 "Cryogenic Beam Vacuum System"), the fabrication of 3 FCC-hh beam-screen (BS) prototypes has been carried out with the aim of testing them at room temperature at the Karlsruhe Institute of Technology (KIT) 2.5 GeV electron storage ring KARA (KArlsruhe Research Accelerator). The 3 BS prototypes will be tested on a beamline installed by the collaboration, named as BEam Screen TEstbench EXperiment (BESTEX). [...]
2018 - 3 p.
- Published in : 10.18429/JACoW-IPAC2018-MOZGBE5
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.MOZGBE5
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Results on the FCC-hh beam screen sawtooth at the KIT electron storage ring KARA
/ Gonzalez, Luis (CERN) ; Baglin, Vincent (CERN) ; Bellafont, Ignasi (CELLS - ALBA, LLS) ; Casalbuoni, Sara (KIT, Karlsruhe) ; Chiggiato, Paolo (CERN) ; Garion, Cedric (CERN) ; Huttel, Erhard (KIT, Karlsruhe) ; Kersevan, Roberto (CERN) ; Pérez, Francis (CELLS - ALBA, LLS)
In the framework of the EuroCirCol collaboration [1] (work package 4 "Cryogenic Beam Vacuum System"), the fabrication of the FCC-hh beam screen (BS) prototype has been carried out with the aim of testing it at room temperature on the Karlsruhe Institute of Technology (KIT) 2.5 GeV electron storage ring KARA (KArlsruhe Research Accelerator) light source. The BS prototype was tested on a beamline installed by the collaboration, named as BEam Screen TEstbench EXperiment (BESTEX). [...]
CERN-ACC-2019-189.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-TUPMP036
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.TUPMP036
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Photostimulated desorption performance of the future circular hadron collider beam screen
/ González, L A (CERN) ; Baglin, V (CERN) ; Chiggiato, P (CERN) ; Garion, C (CERN) ; Kersevan, R (CERN) ; Casalbuoni, S (KIT, Karlsruhe ; European XFEL, Hamburg) ; Grau, A (KIT, Karlsruhe) ; de Jauregui, D Saez (KIT, Karlsruhe) ; Bellafont, I (CELLS - ALBA, LLS) ; Pérez, F (CELLS - ALBA, LLS)
Synchrotron radiation (SR) originated at superconducting bending magnets is known to be at the origin
of several beam detrimental effects related to vacuum instabilities. One of the major challenges in the
design of the vacuum beam pipes of high-energy hadron colliders is the SR coping strategy. [...]
2021 - 9 p.
- Published in : Phys. Rev. Accel. Beams 24 (2021) 113201
Fulltext: PDF;
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Commissioning of a beam screen test bench experiment with a future circular hadron collider type synchrotron radiation beam
/ Gonzalez, L A (CERN ; Frascati) ; Gil-Costa, M (Madrid, CIEMAT ; CERN) ; Baglin, V (CERN) ; Chiggiato, P (CERN) ; Garion, C (CERN) ; Kersevan, R (CERN) ; Casalbuoni, S (KIT, Karlsruhe) ; Huttel, E (KIT, Karlsruhe) ; Bellafont, I (CELLS - ALBA, LLS) ; Perez, F (CELLS - ALBA, LLS)
Coping with synchrotron radiation (SR) that originated at superconducting bending magnets is one of the major challenges in the design of the vacuum beam pipes of hadron colliders. In the case of the Future Circular hadron Collider (FCC-hh), similarly as for the LHC, a beam screen, operating at higher temperatures than the cold mass, has been designed in order to preserve the superconducting magnet cold bores from direct synchrotron irradiation. [...]
2019 - 12 p.
- Published in : Phys. Rev. Accel. Beams 22 (2019) 083201
Fulltext from publisher: PDF;
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Summary of modelling studies on the beam induced vacuum effects in the FCC-hh
/ Bellafont, Ignasi (CERN ; CELLS - ALBA, LLS) ; Kersevan, Roberto (CERN) ; Mether, Lotta (CERN ; Ecole Polytechnique, Lausanne)
EuroCirCol is a conceptual design study of a Future Circular Collider (FCC-hh) which aims to expand the current energy and luminosity frontiers that the LHC has established. The vacuum chamber of this 50 TeV, 100 km collider, will have to cope with unprecedented levels of synchrotron radiation power for proton colliders, dealing simultaneously with a tighter magnet aperture. [...]
CERN-ACC-2019-188.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-TUPMP038
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.TUPMP038
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6.
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RF Characterisation of New Coatings for Future Circular Collider Beam Screens
/ Krkotić, Patrick (CELLS - ALBA, LLS ; Barcelona, Polytechnic U.) ; Calatroni, Sergio (CERN) ; Granados, Xavier (Barcelona, Autonoma U.) ; Gutierrez, Joffre (Barcelona, Autonoma U.) ; Hannah, Adrian (Daresbury) ; Malyshev, Oleg B (Daresbury) ; O'Callaghan, J M (Barcelona, Polytechnic U.) ; Pérez, Francis (CELLS - ALBA, LLS) ; Pont, Montserrat (CELLS - ALBA, LLS) ; Puig, Teresa (Barcelona, Autonoma U.) et al.
For the future high energy colliders being under the design at this moment, the choice of a low surface impedance beam screen coating material has become of fundamental importance to ensure sufficiently low beam impedance and consequently guaranteed stable operation at high currents. We have studied the use of high-temperature superconducting coated conductors as possible coating materials for the beam screen of the FCC-hh. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 2453-2456
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.2453-2456
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Measurement setup at light source operational: Milestone M4.3
/ Perez, Francis (ALBA) ; Chiggiato, Paolo (CERN)
The design of the experimental setup for the measurements of the FCC-hh beam screen prototype to be installed at the ANKA lightsource has been completed and the alignment strategy and procedure has been validated by the CERN and KIT teams. In this report, a complete description of the setup and the program of measurements under different operation conditions is presented..
CERN-ACC-2016-0110.-
Geneva : CERN, 2016
Fulltext: PDF;
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10.
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Beam Instrumentation Challenges for FCC-ee
/ Wendt, Manfred (CERN) ; Carideo, Emanuela (CERN) ; Härer, Bastian (KIT, Karlsruhe, IPE) ; Iriso, Ubaldo (CELLS - ALBA, LLS) ; Lefèvre, Thibaut (CERN) ; Mazzoni, Stefano (CERN) ; Mitsuhashi, Toshiyuki (Sokendai, Tsukuba) ; Müller, Anke-Susanne (KIT, Karlsruhe, IPE) ; Niehues, Gudrun (KIT, Karlsruhe, IPE) ; Reißig, Micha (KIT, Karlsruhe, IPE) et al.
For the accelerator-based future of high energy physics at the energy frontier, CERN started to investigate a 92 km circumference Future Circular Collider (FCC), as e⁺/e⁻ collider the FCC-ee will operate at beam energies up to 182.5 GeV. Beside the machine operational aspects, beam instrumentation will play a key role in verifying and optimizing the machine to achieve the ambitious beam parameters and quality. [...]
2023 - 10 p.
- Published in : JACoW eeFACT 2022 (2023) 208-217
Fulltext: PDF;
In : 65th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+ e- Colliders (eeFACT2022), INFN, Frascati, Italy, 12 - 16 Sep 2022, pp.208-217
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