# R&D and Studies

Последно добавени:
2022-05-06
12:44
 First Studies of the Halo Collimation Needs in the FCC-ee / Moudgalya, Maitreyee The Future Circular Collider, FCC-ee, is an electron-positron collider that is currently being studied and is designed to be the highest-luminosity high-energy lepton collider to date [...] CERN-THESIS-2021-326 - 79 p.

2022-04-09
06:16
 Chapter 7: R&D; programmes oriented towards specific future facilities : Section 7.2: ILC-specific R&D; programme / Michizono, S (KEK, Tsukuba) ; Nakada, T (Ecole Polytechnique, Lausanne) ; Stapnes, S (CERN) The International Linear Collider (ILC) is an electron-positron collider with a collision energy of 250 GeV (total length of approximately 20 km). The design study for the ILC for a collision energy of 500 GeV started in 2004, and the technical design report (TDR) was published by the Global Design Effort (GDE) international team in 2013. [...] 2022 - 4 p. Fulltext: PDF; In : European Strategy for Particle Physics - Accelerator R&D Roadmap, pp.235-238

2022-04-09
06:16
 Chapter 7: R&D; programmes oriented towards specific future facilities : Section 7.1: The FCC-ee R&D; programme / Benedikt, M (CERN) ; Blondel, A (KEK, Tsukuba) ; Brunner, O (CERN) ; Janot, P (CERN) ; Jensen, E (CERN) ; Koratzinos, M (MIT) ; Losito, R (CERN) ; Oide, K (KEK, Tsukuba) ; Raubenheimer, T (SLAC ; Novosibirsk, IYF) ; Zimmermann, F (CERN) In summer 2021, the Future Circular Collider Feasibility Study was launched. The FCC-ee builds on 60 years of operating colliding beam storage rings. The design is robust and will provide high luminosity over the desired centre-of-mass energy range from 90 to 365 GeV. [...] 2022 - 6 p. Fulltext: PDF; In : European Strategy for Particle Physics - Accelerator R&D Roadmap, pp.229-234

2022-04-07
06:02
 How to increase the physics output per MW.h for FCC-ee? : Parameter optimization for maximum luminosity / Shatilov, D (Novosibirsk, IYF ; CERN) The efficiency of colliders for physics is largely determined by their luminosity, while most of the energy consumed by high-energy e$^+$e$^-$ colliders is proportional to the total beam current. Thus, the energy efficiency is mainly determined by the specific luminosity that needs to be maximized. [...] 2022 - 6 p. - Published in : Eur. Phys. J. Plus 137 (2022) 159 Fulltext: PDF; In : Focus Point on A Future Higgs & Electroweak Factory (FCC): Challenges towards Discovery, pp.159

2022-04-06
06:09
 The Superconducting Shield (SuShi) Septum Magnet Prototype / Barna, D (Wigner RCP, Budapest ; Miskolc U.) ; Borburgh, J (CERN) ; Atanasov, M (CERN) ; Kirby, G (CERN) ; Giunchi, G (Unlisted, IT) ; Kárpáti, V (Miskolc U.) ; Szűcs, M (Miskolc U.) ; Szabó, G (Miskolc U.) ; Mertinger, V (Miskolc U.) The Future Circular Collider proton-proton ring would require a high-field septum magnet with a blade as thin as possible for the extraction of the 50 TeV proton beam from the ring. One of the two baseline concepts in the conceptual design report is the “superconducting shield” (nicknamed as SuShi) septum, utilizing a zero field cooled, passive superconducting shield in order to create a zero-field channel for the circulating beam inside the bore of a 3 Tesla canted cosine theta (CCT) type superconducting magnet. [...] 2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4000505

2022-03-25
10:49
 Final cooling scheme for muon colliders: a door opener for future discovery machines / Stechauner, Bernd Michael Discovering unknown phenomena in particle physics – one of the most essential aspects of high energy physics, requires optimizing and developing high energy particle accelerators, for new discoveries [...] CERN-THESIS-2021-304 10.34726/hss.2022.97540. - Vienna : TU Vienna, 2021-12-16. - 108 p.

2022-03-25
08:51
 Beam Optics Design, Measurement and Correction Strategies for Circular Colliders at the Energy and Luminosity Frontier / Keintzel, Jacqueline The work presented in this thesis is driven by the motivation of improving the understanding the beam optics of existing circular colliders at the energy and luminosity frontier and aims to define parameters required for improving the measurement quality, the energy reach and the understanding of pe [...] CERN-THESIS-2022-018 - 201 p.

2022-02-04
12:05
 Instability and Seeded Self-Modulation of a Relativistic Proton Bunch in Plasma / Batsch, Fabian In this work, I demonstrate the existence of two distinct self-modulation (SM) regimes for a relativistic proton bunch in plasma [...] CERN-THESIS-2021-272 - https://mediatum.ub.tum.de/?id=1625390 : mediaTUM, 2022-02-04. - 180 p.

2022-01-12
06:18
 Evaluation of the nonlinear surface resistance of REBCO coated conductors for their use in the FCC-hh beam screen / Krkotić, P (CELLS - ALBA, LLS ; Barcelona, Polytechnic U.) ; Romanov, A (Barcelona, Autonoma U.) ; Tagdulang, N (CELLS - ALBA, LLS ; Barcelona, Polytechnic U.) ; Telles, G (Barcelona, Autonoma U.) ; Puig, T (Barcelona, Autonoma U.) ; Gutierrez, J (Barcelona, IFAE) ; Granados, X (Barcelona, Autonoma U.) ; Calatroni, S (CERN) ; Perez, F (CELLS - ALBA, LLS) ; Pont, M (CELLS - ALBA, LLS) et al. To assess the feasibility of using high-temperature superconductors for the beam screens of future circular colliders, we have undertaken a study of the power dependence of the microwave surface resistance in state-of-the-art REBCO coated conductors at about 8 GHz and 50 K. We have employed a dielectric resonator to produce radio-frequency (RF) electromagnetic fields on the surface of the coated conductors having amplitudes similar to those generated by proton bunches circulating in the vacuum chamber of the proposed future circular collider Hadron-Hadron (FCC-hh) at CERN We show that surface resistances in REBCO coated conductors without artificial pinning centers are more affected by a RF magnetic field than those containing nano-inclusions. [...] 2022 - 11 p. - Published in : Supercond. Sci. Technol. 35 (2022) 025015 Fulltext: PDF;

2021-12-21
16:11
 Focus Point on A Future Higgs & Electroweak Factory (FCC): Challenges towards Discovery : Part IV: Software Developments and Computational Challenges Springer, 2021.

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