Top-up injection schemes for future circular lepton collider
| Autor: | A. Saa Hernandez, S. White, Katsunobu Oide, Brennan Goddard, Yannis Papaphilippou, Frank Zimmermann, Masamitsu Aiba, D.B. Shwartz |
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| Přispěvatelé: | European Synchrotron Radiation Facility (ESRF) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Nuclear and High Energy Physics
Particle physics [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph] wire 01 natural sciences 7. Clean energy Future Circular Collider Top-up injection law.invention law 0103 physical sciences Future circular collider beam: injection 010306 general physics Collider Instrumentation accelerator: design Physics Ring (mathematics) phase space: longitudinal Luminosity (scattering theory) 010308 nuclear & particles physics Detector beam: phase space FCC-ee beam: lifetime Accelerators and Storage Rings Lepton collider beam loading septum beam optics Physics::Accelerator Physics beam profile High Energy Physics::Experiment top: pair production Beam (structure) Storage ring Lepton |
| Zdroj: | Nucl.Instrum.Meth.A Nucl.Instrum.Meth.A, 2018, 880, pp.98-106. ⟨10.1016/j.nima.2017.10.075⟩ Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2018, 880, pp.98-106. ⟨10.1016/j.nima.2017.10.075⟩ |
| ISSN: | 0168-9002 |
| Popis: | International audience; 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. A highly robust top-up injection scheme is consequently imperative. Various top-up methods are investigated and a number of suitable schemes are considered in developing alternative designs for the injection straight section of the collider ring. For the first time, we consider multipole-kicker off-energy injection, for minimizing detector background in top-up operation, and the use of a thin wire septum in a lepton storage ring, for maximizing the luminosity. |
| Databáze: | OpenAIRE |
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