Author: Fatehi, S.
Paper Title Page
TUPPP013 Effects of Multipoles in Dynamic Aperture of the ILSF Storage Ring 1632
 
  • S. Fatehi, E. Ahmadi, F. Saeidi
    ILSF, Tehran, Iran
  • D. Einfeld
    CELLS-ALBA Synchrotron, Cerdanyola del Vallès, Spain
  • H. Ghasem
    IPM, Tehran, Iran
 
  Dynamic aperture of a synchrotron light source shrinks to small value due to the multipole errors caused by magnet design. In the ILSF storage ring, the tolerance of magnets has been taken into account in the simulation and sextupole magnets reoptimized to improve the dynamic aperture. This paper yields the evaluated dynamic aperture include of multipole errors.  
 
TUEPPB008 Status Report on the Iranian Light Source Facility Project 1131
 
  • J. Rahighi, H. Ajam, R. Aslani, S. Fatehi, H. Ghasem, M.R. Khabazi, R. Safian, E. Salimi, A. Shahveh
    IPM, Tehran, Iran
  • E. Ahmadi, M. Jafarzadeh, H.B. Jalali, M. Moradi, S. Pirani, M. Rahimi, A. Sadeghipanah, F. Saeidi, Kh.S. Sarhadi, A. Shahverdi
    ILSF, Tehran, Iran
  • D. Einfeld
    CELLS-ALBA Synchrotron, Cerdanyola del Vallès, Spain
 
  The Iranian Light Source Facility Project (ILSF) is a 3rd generation light source with an energy of 3 GeV,a full energy injector and a 100 MeV linac as preinjector. For storage ring, booster synchrotron and linac including the transfer lines, a draft design has been completed and will be presented. The storage ring has an emittance of 3.3 nm-rad, a circumference of 297.6 meters with an overall of 32 straight sections of different lengths. The booster synchrotron has a circumference of 197 meters and emittance of 35nm-rad. For the booster synchrotron a new lattice is proposed. The linac is a conventional 150 MeV accelerator. The different accelerator components, magnets, girders, power supplies, vacuum systems etc. are in the design phase. State of the art design for different components is employed through international collaboration.  
 
THPPD007 ILSF Storage Ring Magnets 3506
 
  • S. Fatehi, R. Aslani, M.R. Khabbazi
    IPM, Tehran, Iran
 
  Iranian Light Source Facility (ILSF) is a 3 GeV storage ring consisting 32 combined bending magnets in 2 types, 104 quadrupoles in 9 families and 128 sextupoles in 9 families. It was decided to use curved C-type, parallel ends, combined bending magnets that have the same lengths, a central fields of 1.42 T and total gap of 32 mm but quadrupole components of g1=-3.837 and g2=-5.839 T/m. Using two dimensional code POISSON and FEMM and applying appropriate shims, pole profile was optimized to maintain the field homogeneity over the full horizontal aperture of ±10, such that, field tolerance is of the order of 10-4. Also a pole and yoke geometry was developed for the quadrupole, with a field gradient of 23 T/m, bore radius of 30.5 mm and magnetic length of 0.53m which is the maximum possible values in the lattice. Obtained field tolerance is of the order of 10-4 in the good field region 18 mm. Sextupoles are supposed to have a bore radius of 34 mm, max sextupole component of 700 T/m2 and are designed in order to achieve a field tolerance of 10-3 in the good field region of 12 mm. Also in order to investigate the end effects 3D calculations has been done by using Radia 3D code.