Speaker
Katsunobu Oide
(High Energy Accelerator Research Organization (JP))
Description
Design of beam optics will be presented for the FCC-ee double-ring collider. The main characteristics are 45 to 175 GeV beam energy, 100 km circumference with two IPs/ring, 30 mrad crossing angle at the IP, crab-waist scheme with local chromaticity correction system, and "tapering" of the magnets along with the local beam energy. An asymmetric layout near the interaction region suppresses the critical energy of synchrotron radiation toward the detector at the IP less than 100 keV, while keeping the geometry as close as to the FCC-hh beam line. A sufficient transverse/longitudinal dynamic aperture is obtained for beta* = (0.5 m, 1 mm) to assure the lifetime with beamstrahlung and top-up injection. The synchrotron radiation in all magnets, the IP solenoid and its compensation, nonlinearity of the final quadrupoles are taken into account.
Author
Katsunobu Oide
(High Energy Accelerator Research Organization (JP))
Co-authors
Alain Blondel
(Universite de Geneve (CH))
Andreas Doblhammer
(Vienna University of Technology (AT))
Dr
Anton Bogomyagkov
(Budker Institute of Nuclear Physics (RU))
Bastian Harer
(KIT - Karlsruhe Institute of Technology (DE))
Bernhard Holzer
(CERN)
Dr
Demin Zhou
(KEK)
Dmitry Shatilov
(Budker Institute of Nuclear Physics (RU))
Dmitry Shwartz
(BINP)
Evgeny Levichev
(Budker Institute of Nuclear Physics (RU))
Frank Zimmermann
(CERN)
Helmut Burkhardt
(CERN)
Ivan Koop
(Budker Institute of Nuclear Physics (RU))
Dr
John Jowett
(CERN)
Jorg Wenninger
(CERN)
Masamitsu Aiba
(Paul Scherrer Institut (CH))
Michael Benedikt
(CERN)
Pavel Piminov
(Budker Institute of Nuclear Physics (RU))
Salim Ogur
Sandra Aumon
(CERN)
Sergey SINYATKIN
(BINP)
Uli Wienands
(SLAC)
Yannis Papaphilippou
(CERN)
Dr
Yunhai Cai
(SLAC National Accelerator Laboratory (US))
kazuhito ohmi
(KEK)
m Koratzinos
(Universite de Geneve (CH))
