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Concepts and Considerations for FCC-ee Top-Up Injection Strategies
/ Ramjiawan, Rebecca (CERN) ; Aiba, Masamitsu (PSI, Villigen) ; Bartmann, Wolfgang (CERN) ; Dutheil, Yann (CERN) ; Hofer, Michael (CERN) ; Hunchak, Patrick (PSI, Villigen)
The Future Circular electron-positron Collider (FCC-ee) is proposed to operate in four modes, with beam energies from 45.6 GeV (Z-pole) to 182.5 GeV (tt-bar production) and luminosities up to 4.6×10³⁶ cm²s⁻¹. At the highest energies the beam lifetime would be less than one hour, meaning that top-up injection will be crucial to maximise the integrated luminosity. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2106-2109
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2106-2109
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Studies on Top-Up Injection into the FCC-ee Collider Ring
/ Hunchak, Patrick (Saskatchewan U., CLS ; Saskatchewan U.) ; Aiba, Masamitsu (PSI, Villigen) ; Bartmann, Wolfgang (CERN) ; Boland, Mark (Saskatchewan U., CLS ; Saskatchewan U.) ; Dutheil, Yann (CERN) ; Hofer, Michael (CERN) ; Ramjiawan, Rebecca (CERN) ; Zimmermann, Frank (CERN)
In order to maximize the luminosity production time in the FCC-ee, top-up injection will be employed. The positron and electron beams will be accelerated to the collision energy in the booster ring before being injected with either a small transverse or longitudinal separation to the stored beam. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 1699-1702
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1699-1702
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Top-up injection schemes for future circular lepton collider
/ Aiba, M (PSI, Villigen) ; Goddard, B (CERN) ; Oide, K (CERN ; KEK, Tsukuba) ; Papaphilippou, Y (CERN) ; Saá Hernández, Á (PSI, Villigen) ; Shwartz, D (Novosibirsk, IYF) ; White, S (ESRF, Grenoble) ; Zimmermann, F (CERN)
Top-up injection is an essential ingredient for the future circular lepton collider (FCC-ee) to maximize the integrated luminosity and it determines the design performance. In ttbar operation mode, with a beam energy of 175 GeV, the design lifetime of ∼ 1 h is the shortest of the four anticipated operational modes, and the beam lifetime may be even shorter in actual operation. [...]
2018 - 9 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 880 (2018) 98-106
Fulltext: PDF;
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Science Case for the new High-Intensity Muon Beams HIMB at PSI
/ Aiba, M. (PSI, Villigen) ; Amato, A. (PSI, Villigen) ; Antognini, A. (PSI, Villigen ; Zurich, ETH) ; Ban, S. (Tokyo U., ICEPP) ; Berger, N. (U. Mainz, PRISMA) ; Caminada, L. (PSI, Villigen ; Zurich U.) ; Chislett, R. (University Coll. London) ; Crivelli, P. (Zurich, ETH) ; Crivellin, A. (PSI, Villigen ; Zurich U.) ; Maso, G. Dal (PSI, Villigen ; Zurich, ETH) et al.
In April 2021, scientists active in muon physics met to discuss and work out the physics case for the new High-Intensity Muon Beams (HIMB) project at PSI that could deliver of order 1010 s−1 surface muons to experiments. [...]
arXiv:2111.05788.
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116.
Fulltext
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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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Systematic optics studies for the commissioning of the AWAKE electron beamline
/ Bracco, Chiara (CERN) ; Aiba, Masamitsu (PSI, Villigen) ; Goddard, Brennan (CERN) ; Gorgisyan, Ishkhan (CERN) ; Turner, Marlene (CERN) ; Velotti, Francesco (CERN) ; Verra, Livio (CERN)
The commissioning of the AWAKE electron beam line was successfully completed in 2018. Despite a modest length of about 15 m, this low-energy line is quite complex and several iterations were needed before finding satisfactory agreement between the model and the measurements. [...]
CERN-ACC-2019-210.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPMP029
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPMP029
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Beam Optics for FCC-ee Collider Ring
/ Oide, Katsunobu (KEK, Tsukuba) ; Aiba, M (PSI, Villigen) ; Aumon, S (CERN) ; Benedikt, M (CERN) ; Blondel, A (Geneva U.) ; Bogomyagkov, A V (Novosibirsk, IYF) ; Boscolo, M (Frascati) ; Burkhardt, H (CERN) ; Cai, Y (SLAC) ; Doblhammer, A (CERN) et al.
A beam optics scheme has been designed [ 1 ] for the Future Circular Collider- e + e − (FCC-ee). The main characteristics of the design are: beam energy 45 to 175 GeV, 100 km circumference with two interaction points (IPs) per ring, horizontal crossing angle of 30 mrad at the IP and the crab-waist scheme [ 2 ] with local chromaticity correction. [...]
SISSA, 2017 - 11 p.
- Published in : PoS ICHEP2016 (2017) 040
Fulltext: PDF; External link: PoS server
In : 38th International Conference on High Energy Physics, Chicago, IL, USA, 03 - 10 Aug 2016, pp.040
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Commissioning experience and beam physics measurements at the SwissFEL Injector test Facility
/ Schietinger, T. (PSI, Villigen) ; Pedrozzi, M. (PSI, Villigen) ; Aiba, M. (PSI, Villigen) ; Arsov, V. (PSI, Villigen) ; Bettoni, S. (PSI, Villigen) ; Beutner, B. (PSI, Villigen) ; Calvi, M. (PSI, Villigen) ; Craievich, P. (PSI, Villigen) ; Dehler, M. (PSI, Villigen) ; Frei, F. (PSI, Villigen) et al.
The SwissFEL Injector Test Facility operated at the Paul Scherrer Institute between 2010 and 2014, serving as a pilot plant and test bed for the development and realization of SwissFEL, the x-ray Free Electron Laser facility under construction at the same institute. The test facility consisted of a laser-driven rf electron gun followed by an S-band booster linac, a magnetic bunch compression chicane and a diagnostic section including atransverse deflecting rf cavity. [...]
arXiv:1606.02586; CERN-ACC-2016-0346.-
Geneva : CERN, 2016-10-26 - 61 p.
- Published in : Phys. Rev. Accel. Beams 19 (2016) 100702
Fulltext: arXiv:1606.02586 - PDF; CERN-ACC-2016-0346 - PDF; 10.1103_PhysRevAccelBeams.19.100702 - PDF; External link: Preprint
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Design of beam optics for the Future Circular Collider e+e- -collider rings
/ Oide, K. (KEK, Tsukuba) ; Aiba, M. (PSI, Villigen) ; Aumon, S. (CERN) ; Benedikt, M. (CERN) ; Blondel, A. (Geneva U.) ; Bogomyagkov, A. (Novosibirsk, IYF) ; Boscolo, M. (Frascati) ; Burkhardt, H. (CERN) ; Cai, Y. (SLAC) ; Doblhammer, A. (CERN) et al.
A beam optics scheme has been designed for the Future Circular Collider-e+e- (FCC-ee). The main characteristics of the design are: beam energy 45 to 175 GeV, 100 km circumference with two interaction points (IPs) per ring, horizontal crossing angle of 30 mrad at the IP and the crab-waist scheme [1] with local chromaticity correction. [...]
arXiv:1610.07170; CERN-ATS-2016-007.-
2016-11-21 - 11 p.
- Published in : Phys. Rev. Accel. Beams: 19 (2016) , no. 11, pp. 111005
Fulltext: arXiv:1610.07170 - PDF; 10.1103_PhysRevAccelBeams.19.111005 - PDF; PhysRevAccelBeams.19 - PDF; External link: Preprint
In : 2nd Annual Meeting of the Future Circular Collider study 2016, Rome, Italy, 11 - 15 Apr 2016, pp.111005
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