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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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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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Design of an X-Band Bunching and Accelerating System for AWAKE Run 2
/ Arnesano, Jordan Matias (CERN) ; Döbert, Steffen (CERN)
In Run2 AWAKE aims to demonstrate beam quality and increase the accelerating gradient in the plasma even further and in order to be able to serve high-energy physics experiments. In this framework, a new electron injector, consisting of an S-band RF-gun and a subsequent X-band bunching and accelerating sections, able to produce very short bunches with a small emittance, has been designed. [...]
2022 - 4 p.
- Published in : JACoW LINAC 2022 (2022) 458-461
Fulltext: PDF;
In : 31st Linear Accelerator Conference (LINAC22), Liverpool, UK, 28 Aug - 2 Sep 2022, pp.458-461
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Design of the Proton and Electron Transfer Lines for AWAKE Run 2c
/ Ramjiawan, Rebecca (JAI, UK ; CERN) ; Döbert, Steffen (CERN) ; Farmer, John (Munich, Max Planck Inst. ; CERN) ; Gschwendtner, Edda (CERN) ; Muggli, Patric (Munich, Max Planck Inst. ; CERN) ; Velotti, Francesco (CERN) ; Verra, Livio (CERN)
The AWAKE Run 1 experiment achieved electron acceleration to 2 GeV using plasma wakefield acceleration driven by 400 GeV, self-modulated proton bunches from the CERN SPS. The Run 2c phase of the experiment aims to build on these results by demonstrating acceleration to ~10 GeV while preserving the quality of the accelerated electron beam. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 778-781
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.778-781
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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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A New Algorithm for Positron Source Parameter Optimisation
/ Zhao, Yongke (Shandong U. ; CERN) ; Döbert, Steffen (CERN) ; Latina, Andrea (CERN) ; Ma, Lianliang (Shandong U.)
In this report, we proposed a new simple and efficient algorithm for positron source parameter optimisation, which is based on iterations of scan of free parameters in the simulation. The new algorithm is fast, simple and convincing since the results can be visually drawn and flexibly tuned and it has an advantage that it can easily handle realistic parametric problems with more than one objective quantities to optimise. [...]
2021 - 4 p.
- Published in : 10.18429/JACoW-IPAC2021-WEPAB013
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, Br, 24 - 28 May 2021, pp.WEPAB013
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Optimisation of the CLIC Positron Source
/ Zhao, Yongke (Shandong U. ; CERN) ; Bajas, Hugues (CERN) ; Döbert, Steffen (CERN) ; Latina, Andrea (CERN) ; Ma, Lianliang (Shandong U.)
In this report, we reoptimised the CLIC positron source at all collision energy stages. Simulation, optimisation algorithm and results were all improved compared with previous studies. [...]
2021 - 4 p.
- Published in : 10.18429/JACoW-IPAC2021-WEPAB014
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, Br, 24 - 28 May 2021, pp.2613-2616
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