Author: Bogomyagkov, A.V.
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MOPRO017 Low Emittance Lattice Cell with Large Dynamic Aperture 99
 
  • A.V. Bogomyagkov, E.B. Levichev, P.A. Piminov
    BINP SB RAS, Novosibirsk, Russia
 
  Funding: The work is supported by the Ministry of Education and Science of the Russian Federation.
Compact low emittance lattice cell providing large dynamic aperture is essential for development of extremely low (pm range) emittance storage rings. As it is well known, a pair of identical sextupoles connected by a mi-nus-identity matrix transformer in ideal case of kick-like magnets provides infinite dynamic aperture. Though the finite sextupole length degrades the aperture, it is still large enough, and in this report we discuss development of the low emittance cell providing the —I condition for both horizontal and vertical chromatic sextupoles.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPRO017  
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WEPRO042 Damping Wiggler with Tapered Period 2038
 
  • K. Karyukina
    BINP, Novosibirsk, Russia
  • A.V. Bogomyagkov, E.B. Levichev
    BINP SB RAS, Novosibirsk, Russia
 
  Strong-field short-period wigglers installed in electron storage ring increase the radiation damping integral I2 and either increase or decrease the I5 integral responsible for quantum excitation. In case of the I5 integral decreasing, the beam emittance can be substantially reduced. In the paper we discuss additional reduction of I5 by applying of the longitudinal modulation of the wiggler period (tapering).  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRO042  
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THPRI008 Interaction Region Lattice for FCC-ee (TLEP) 3779
 
  • A.V. Bogomyagkov, E.B. Levichev, P.A. Piminov
    BINP SB RAS, Novosibirsk, Russia
 
  Funding: The work is supported by the Ministry of Education and Science of the Russian Federation.
FCC-ee (TLEP)* project is a high-luminosity e+e- collider and is an essential part of the Future Circular Collider (FCC) design study at CERN . FCC-ee is being designed to reach center-of-mass energy from 90 to 350 GeV with circumference of 80-100 km to study Higgs boson properties and perform precise measurements at the electroweak scale. It is also an intermediate step towards 100 TeV proton-proton collider built in the same tunnel. Some of the limiting factors of the new collider are total energy loss due to synchrotron radiation, beam lifetime degradation owing to beamstrahlung, geometry of the tunnel required to accommodate the successor. The present paper describes linear lattice of interaction region and results of nonlinear beam dynamics study.
* M.~Koratzinos et al., ‘‘TLEP: A HIGH-PERFORMANCE CIRCULAR e+e COLLIDER TO STUDY THE HIGGS BOSON'', IPAC2013, Shanghai, China, TUPME040 (2013)
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPRI008  
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