Author: Levichev, E.B.
Paper Title Page
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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MOPRO064 An Ultra-low Emittance Model for the ANKA Synchrotron Radiation Source Including Non-linear Effects 228
 
  • A.I. Papash, A.-S. Müller
    KIT, Eggenstein-Leopoldshafen, Germany
  • E.B. Levichev, P.A. Piminov, S.V. Sinyatkin, K. Zolotarev
    BINP SB RAS, Novosibirsk, Russia
 
  An ultra-low emittance lattice based on the ANKA ring geometry is under investigation in framework of the feasibility studies for a compact low emittance synchrotron light source at the Karlsruhe Institute of Technology (Germany). An attempt to apply the concept of split bending magnets cells and to reduce the natural emittance of the bare ANKA DBA lattice from 90 nm×rad down to 2.5 nm×rad with not-vanishing dynamic aperture is described in this paper. The TME cell with split bends and a quadrupole lens in-between as well as a pair of non-interleaved sextupole lenses separated by “—I ” unit transfer matrix of betatron oscillations allows to decrease the theoretical minimum emittance of ANKA ring down to approximately 6 nm×rad. Further reduction of the phase space volume requires to brake “—I ” symmetry and add extra families of sextupoles, locate an additional high order field elements inside the quadrupoles, optimize the phase advance between sextupole families, shift the betatron tune point, enlarge the sextupole strength and other measures. Results of simulations are reported.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPRO064  
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MOPRO088 The NSLS-II Booster Commissioning 295
 
  • S.M. Gurov, S.E. Karnaev, V.A. Kiselev, E.B. Levichev, S.V. Sinyatkin, A.N. Zhuravlev
    BINP SB RAS, Novosibirsk, Russia
  • V.V. Smaluk
    DLS, Oxfordshire, United Kingdom
 
  The National Synchrotron Light Source II is a third generation light source, which was constructed at Brookhaven National Laboratory. This project includes a highly-optimized 3 GeV electron storage ring, linac pre-injector, and full-energy synchrotron injector. Budker Institute of Nuclear Physics built and delivered the booster for NSLS-II. The commissioning of the booster was successfully completed.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPRO088  
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MOPME026 IBS Simulations with Compute Unified Device Architecture (CUDA) Technology 436
 
  • S.A. Glukhov, E.B. Levichev, S.A. Nikitin, P.A. Piminov, D.N. Shatilov, S.V. Sinyatkin
    BINP SB RAS, Novosibirsk, Russia
 
  A program code for 6D tracking has been developed taking into account IBS (Intra-Beam Scattering) and Touschek effect and using Monte-Carlo method. The simulation algorithm has been developed on the basis of well-known IBS theory presented in (*). The resulting program can be executed using GPGPU devices (General-Purpose Graphics Processing Units) supporting CUDA technology (Compute Unified Device Architecture).
* J. Le Duff, Single and multiple Touschek effects // Published in In Rhodos 1993, Advanced accelerator physics, vol. 2 573-586. CERN Geneva - CERN-95-06 (95/11,rec. Mar.96) 1993. p. 573-586.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPME026  
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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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THPME154 Turn-by-turn Beam Profile Study at VEPP-4M 3620
 
  • O.I. Meshkov, E.B. Levichev, P.A. Piminov, A.N. Zhuravlev
    BINP SB RAS, Novosibirsk, Russia
 
  The beam dynamics during crossing of dynamical aperture border was studied. We controlled the beam losses and beam transversal profile during high-amplitude betatron oscillations caused by the electrostatic kick. The beam transversal profile was recorded by the Multi Anode Photomultiplier with turn-to turn temporal resolution. The experimental data are compared with numerical simulation.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME154  
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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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