CERN Accelerating science

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1.
Benchmarking the FCC-ee positron source simulation tools using the SuperKEKB results / Alharthi, F (IJCLab, Orsay ; KACST, Riyadh) ; Chaikovska, I (IJCLab, Orsay) ; Chehab, R (IJCLab, Orsay) ; Zhao, Y (CERN) ; Latina, A (CERN) ; Enomoto, Y (KEK, Tsukuba) ; Miyahara, F (KEK, Tsukuba) ; Mytrochenko, V (Kharkov, KIPT)
For the Future Circular Collider (FCC-ee), particular attention is drowned to the crucial role of the positron source. Two positron production schemes are considered for the FCC-ee: conventional and crystal-based (hybrid), implying the use of channeling radiation in the oriented crystals. [...]
2024 - 7 p. - Published in : J. Phys. : Conf. Ser.: 2687 (2024) , no. 2, pp. 022010
- Published in : JACoW IPAC: 2023 (2023) , pp. MOPL094 Fulltext: PublicationJACoW - PDF; PublicationIOP - PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.022010
2.
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
3.
Advantages of hybrid positron sources with granular converters / Chehab, R (IJCLab, Orsay) ; Chaikovska, I (IJCLab, Orsay) ; Alharthi, F (IJCLab, Orsay) ; Guler, H (IJCLab, Orsay) ; Mytrochenko, V (IJCLab, Orsay) ; Wallon, S (IJCLab, Orsay) ; Sievers, P (CERN)
The interest in crystal effects and more precisely for channeling radiation in axially oriented crystals is underlined. An association of a photon radiator using a crystal followed by an amorphous converter may have advantages concerning heating considerations. [...]
2023 - 5 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1060 (2024) 168994
In : 9th International Conference on Charged & Neutral Particles Channeling Phenomena (Channeling 2023), Riccione, Italy, 4 - 9 June 2023, pp.168994
4.
Target Studies for the FCC-ee Positron Source / Alharthi, F (IJCLab, Orsay) ; Bandiera, L (INFN, Ferrara ; Ferrara U.) ; Chaikovska, I (IJCLab, Orsay) ; Chehab, R (IJCLab, Orsay) ; Diefenbach, J (Helmholtz Inst., Mainz) ; Khomyshyn, O (Taras Shevchenko U.) ; Klekots, D (Taras Shevchenko U.) ; Lauth, W (Helmholtz Inst., Mainz) ; Mazzolari, A (INFN, Ferrara ; Ferrara U.) ; Mytrochenko, V (Kharkov, KIPT) et al.
FCC-ee injector study foresees 3.5~nC electron and positron bunches with 200 Hz repetition and 2 bunches per linac pulse at 6~GeV extraction energy. Regarding the possible options of positron production, we retain both of the conventional amorphous target and the hybrid target options. [...]
2022 - 4 p. - Published in : JACoW IPAC 2022 (2022) 1979-1982 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1979-1982
5.
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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