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The FCCee Pre-Injector Complex
/ Craievich, Paolo (PSI, Villigen) ; Alharthi, Fahad (IJCLab, Orsay) ; Auchmann, Bernhard (PSI, Villigen) ; Bartmann, Wolfgang (CERN) ; Benedikt, Michael (CERN) ; Besana, Maria Ilaria (CERN) ; Bettoni, Simona (PSI, Villigen) ; Braun, Hans-Heinrich (PSI, Villigen) ; Calviani, Marco (CERN) ; Chaikovska, Iryna (IJCLab, Orsay) et al.
The international FCC study group published in 2019 a Conceptual Design Report for an electron-positron collider with a centre-of-mass energy from 90 to 365 GeV with a beam currents of up to 1.4 A per beam. The high beam current of this collider create challenging requirements on the injection chain and all aspects of the linac need to be carefully reconsidered and revisited, including the injection time structure. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2007-2010
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2007-2010
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2.
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The PSI positron production project
/ Vallis, Nicolas (PSI, Villigen ; Ecole Polytechnique, Lausanne) ; Craievich, Paolo (PSI, Villigen) ; Schaer, Mattia (PSI, Villigen) ; Zennaro, Riccardo (PSI, Villigen) ; Auchmann, Bernhard (PSI, Villigen) ; Besana, Maria Ilaria (PSI, Villigen) ; Duda, Michal (PSI, Villigen) ; Fortunati, Reto (PSI, Villigen) ; Garcia Rodrigues, Henrique (PSI, Villigen) ; Hauenstein, Dominique (PSI, Villigen) et al.
The PSI Positron Production experiment, known as $\text{P}^{3}$ or $\textit{P-cubed}$, is a proof-of-principle positron source and capture system that can greatly improve the state-of-the-art positron yield. The $\text{P}^{3}$ project is led by the Paul Scherrer Institute in Switzerland, and addresses the long-standing challenge faced by conventional injector facilities to generate, capture, and damp the emittance of high-current positron beam, which is a major limiting factor for the feasibility of future electron-positron colliders. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) TUPC50
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC50
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3.
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Optimisation of the FCC-ee Positron Source Using a HTS Solenoid Matching Device
/ Zhao, Yongke (CERN) ; Auchmann, Bernhard (PSI, Villigen) ; Chaikovska, Iryna (IJCLab, Orsay) ; Chehab, Robert (IJCLab, Orsay) ; Craievich, Paolo (PSI, Villigen) ; Döbert, Steffen (CERN) ; Duda, Michal (Cracow, INP) ; Kosse, Jaap (PSI, Villigen) ; Latina, Andrea (CERN) ; Martyshkin, Pavel (Novosibirsk, IYF) et al.
In this paper, we present the simulation and optimisation of the FCC-ee positron source, where a high-temperature superconducting (HTS) solenoid is used as the matching device to collect positrons from the target. The "conventional" target scheme is used which simply consists of amorphous tungsten. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2003-2006
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2003-2006
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Overall Injection Strategy for FCC-ee
/ Ogur, Salim (CERN) ; Aiba, Masamitsu (PSI, Villigen) ; Antoniou, Fanouria (CERN) ; Barnyakov, Alexey (Novosibirsk, IYF) ; Chaikovska, Iryna (Orsay, LAL) ; Charles, Tessa (CERN) ; Chehab, Robert (Orsay, LAL) ; Etisken, Ozgur (Ankara U.) ; Furukawa, Kazuro (KEK, Tsukuba) ; Härer, Bastian (CERN) et al.
The Future Circular electron-positron Collider (FCC-ee) requires fast cycling injectors with very low extraction emittances to provide and maintain extreme luminosities at center of mass energy varying between 91.2-385 GeV in the collider. For this reason, the whole injector complex table is prepared by putting into consideration the minimum fill time from scratch, bootstrapping, transmission efficiency as well as store time of the beams in synchrotrons to approach equilibrium emittances. [...]
JACOW, 2019 - 8 p.
- Published in : 10.18429/JACoW-eeFACT2018-TUPAB03
Published fulltext: PDF;
In : 62nd ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e− Colliders, Hong Kong, China, 24 - 27 Sep 2018, pp.TUPAB03
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5.
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Update on the FCC-ee positron source design studies
/ Chaikovska, Iryna (IJCLab, Orsay) ; Bacci, Alberto (INFN, Milan) ; Latina, Andrea (CERN) ; Lechner, Anton (CERN) ; Perillo Marcone, Antonio (CERN) ; Humann, Barbara (CERN) ; Auchmann, Bernhard (PSI, Villigen) ; Alharthi, Fahad (IJCLab, Orsay ; KACST, Riyadh) ; Kosse, Jaap (PSI, Villigen) ; Grenard, Jean-Louis (CERN) et al.
The studies and R&D; on the high-intensity positron source for the FCC-ee have been initiated for a while. The positrons are produced by a 6 GeV electron drive-beam incident on a target-converter at 200 Hz. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) MOPL095
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPL095
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6.
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Comparison of Different Matching Device Field Profiles for the FCC-ee Positron Source
/ Zhao, Yongke (Shandong U. ; CERN) ; Auchmann, Bernhard (PSI, Villigen) ; Chaikovska, Iryna (IJCLab, Orsay) ; Chehab, Robert (IJCLab, Orsay) ; Craievich, Paolo (PSI, Villigen) ; Döbert, Steffen (CERN) ; Kosse, Jaap (PSI, Villigen) ; Latina, Andrea (CERN) ; Ma, Lianliang (Shandong U.) ; Martyshkin, Pavel (Novosibirsk, IYF) et al.
In this report, we compared different matching device field profiles for the FCC-ee positron source. The matching device is used to capture positrons with magnetic field. [...]
JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 2617-2620
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.2617-2620
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7.
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Radiation Load Studies for the FCC-ee Positron Source with a Superconducting Matching Device
/ Humann, Barbara (Vienna U. ; CERN) ; Auchmann, Bernhard (PSI, Villigen) ; Chaikovska, Iryna (IJCLab, Orsay) ; Kosse, Jaap (PSI, Villigen) ; Latina, Andrea (CERN) ; Lechner, Anton (CERN) ; Ogur, Salim (IJCLab, Orsay) ; Zhao, Yongke (CERN)
For an electron-positron collider like FCC-ee, the production of positrons plays a crucial role. One of the design options considered for the FCC-ee positron source employs a superconducting solenoid made of HTS coils as an adiabatic matching device. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2879-2882
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2879-2882
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8.
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The P$^3$ Experiment: A Positron Source Demonstrator for Future Lepton Colliders
/ Vallis, N. (PSI, Villigen ; Ecole Polytechnique, Lausanne) ; Craievich, P. (PSI, Villigen) ; Schär, M. (PSI, Villigen) ; Zennaro, R. (PSI, Villigen) ; Auchmann, B. (PSI, Villigen ; CERN) ; Braun, H.H. (PSI, Villigen) ; Besana, M.I. (PSI, Villigen) ; Duda, M. (PSI, Villigen) ; Fortunati, R. (PSI, Villigen) ; Garcia-Rodrigues, H. (PSI, Villigen) et al.
The PSI Positron Production (P$^3$ or P-cubed) experiment is a demonstrator for a e+ source and capture system with potential to improve the state-of-the-art e+ yield by an order of magnitude. [...]
arXiv:2308.16803.
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16 p.
Fulltext
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9.
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RF Design of Traveling-Wave Accelerating Structures for the FCC-ee Pre-injector Complex
/ Pommerenke, Hermann (CERN) ; Bettoni, Simona (PSI, Villigen) ; Craievich, Paolo (PSI, Villigen) ; Grudiev, Alexej (CERN) ; Latina, Andrea (CERN) ; Raguin, Jean-Yves (PSI, Villigen) ; Schaer, Mattia (PSI, Villigen)
The linacs of the FCC-ee (Future Circular Electron-Positron Collider) injector complex will provide the drive beam for positron production and accelerate nominal electron and positron beams up to 6 GeV. Several linacs comprise different traveling-wave (TW) accelerating structures fulfilling the beam dynamics and rf constraints. [...]
2022 - 4 p.
- Published in : JACoW LINAC 2022 (2022) 707-710
Fulltext: PDF;
In : 31st Linear Accelerator Conference (LINAC22), Liverpool, UK, 28 Aug - 2 Sep 2022, pp.707-710
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The PolariX-TDS Project: Bead-Pull Measurements and High-Power Test on the Prototype
/ Craievich, Paolo (PSI, Villigen) ; Aßmann, Ralph (DESY) ; Bopp, Markus (PSI, Villigen) ; Braun, Hans-Heinrich (PSI, Villigen) ; Catalán Lasheras, Nuria (CERN) ; Christie, Florian (DESY) ; Citterio, Alessandro (PSI, Villigen) ; D'Arcy, Richard (DESY) ; Dorda, Ulrich (DESY) ; Foese, Manon (DESY) et al.
A collaboration between DESY, PSI and CERN has been established to develop and build an advanced modular X- band transverse deflection structure (TDS) system with the new feature of providing variable polarization of the deflecting force. The prototype of the novel X-band TDS, the Polarizable X-band (PolariX) TDS, was fabricated at PSI following the high-precision tuning-free production process developed for the C-band Linac of the SwissFEL project. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-FEL2019-WEP036
Fulltext: PDF;
In : 39th International Free Electron Laser Conference, Hamburg, Germany, 26 - 30 Aug 2019, pp.WEP036
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