Author: Ghasem, H.
Paper Title Page
MOPEA023 Lattice Design for the ILSF Booster Synchrotron 121
 
  • E. Ahmadi, H. Ghasem, F. Saeidi
    ILSF, Tehran, Iran
  • H. Ghasem
    IPM, Tehran, Iran
 
  ILSF booster synchrotron is a full energy 3GeV injector with the circumference of 192m will be housed in a separate tunnel from storage ring. In order to keep low the emittance, a theoretical minimum emittance lattice in which the dipoles and quadrupoles have sextupole component has been considered for the booster. In this paper, the lattice concept and main features of the booster will be reported. The variation of emittance and beam size during booster ramping is also investigated. Finally the effect of existed eddy current on the chromaticity and dynamic aperture will be presented.  
 
MOPEA024 Effects of Insertion Devices in the High Field Lattice Structure of ILSF Storage Ring 124
 
  • F. Saeidi, E. Ahmadi, H. Ghasem
    ILSF, Tehran, Iran
  • H. Ghasem
    IPM, Tehran, Iran
 
  We have studied effects of different insertion devices(IDs) in the high filed ILSF storage ring. Radiation from the IDs leads to change emittance and energy spread of the ring and magnetic field of them results to beta-beating, tune shift and shrink of dynamic aperture. This paper describes effects of the IDs on beam parameters of the high field lattice structure of ILSF storage ring and proposes the compensation method of these effects.
farhad.saeidi@ipm.ir
 
 
MOPEA026 X-ray Powder Diffraction Beamline for the Iranian Light Source Facility 130
 
  • H. Khosroabadi, S. Amiri, H. Ghasem, A. Gholampour
    ILSF, Tehran, Iran
  • H. Ghasem
    IPM, Tehran, Iran
 
  Iranian Light Source Facility (ILSF) project has been initiated since 2010 in order to design and construction of a synchrotron facility in Iran. In parallel with the machine’s activities, scientific committee, users community and beamline technical group are working on different aspects of the scientific and beamline design issues for the operating phase after construction*. X-ray powder diffraction beamline is one of the most priorities in ILSF due to wide range of applications and big potential user community in Iran. Conceptual design report of this beamline operating in other worldwide synchrotrons have been studied and compared in details. The light source and schematic design of the beamline has been prepared in this study. Then, the parameters have been calculated and have been optimized by employing computational software such as XOP and SHADOW**. The optical properties of the optical elements such as reflectivity, absorbance, Bragg diffraction, rocking curve, aberration, etc have been studied at this design, and the results have been compared with the other published results. The outcome and final results of this design progress will be discussed in details.
References:
* Conceptual Design Report (2011, summer), ILSF, http://ilsf.ipm.ac.ir/.
** http://www.esrf.eu/UsersAndScience/Experiments/TBS/SciSoft/xop2.3.
 
 
TUOAB202 ILSF, A Third Generation Light Source Laboratory in Iran 1137
 
  • J. Rahighi, M.R. Khabazi
    IPM, Tehran, Iran
  • E. Ahmadi, H. Ajam, M. Akbari, S. Amiri, A. Babaei, J. Dehghani, R. Eghbali, J. Etemad Moghadam, S. Fatehi, M. Fereidani, H. Ghasem, A. Gholampour, A. Iraji, M. Jafarzadeh, B. Kamkari, S. Kashani, P. Khodadoost, H. Khosroabadi, M. Moradi, H. Oveisi, S. Pirani, M. Rahimi, M. Razazian, A. Sadeghipanah, F. Saeidi, R. Safian, E. Salimi, Kh.S. Sarhadi, O. Seify, M.Sh. Shafiee, A. Shahveh, A. Shahverdi, D. Shirangi, E.H. Yousefi
    ILSF, Tehran, Iran
  • D. Einfeld
    CELLS-ALBA Synchrotron, Cerdanyola del Vallès, Spain
 
  The Iranian Light Source Facility (ILSF) project is a first large scale accelerator facility which is currently under planning in Iran. The circumference of the storage ring is 297.6 m with the energy of 3 GeV. The facility will be built on a land of 100 hectares area in the city of Qazvin, located 150 km West of Tehran. The city is surrounded by many universities, research centers and industrial companies. The design and construction of prototype items such as radio frequency solid state amplifier, dipole magnets, highly stable magnet power supplies and girders have already begun. A low field H-type dipole magnet with the central field of 0.5T at the gap of 34mm and length of 500mm was built and tested in site. Also a prototype storage ring quadrupole with a 18 T/m gradient and 233 iron length is in now in fabrication process. Site selection studies, including geotechnical and seismological measurements are being performed. Conceptual Design Report, CDR, as the first milestone of the project has been published on October 2012.  
slides icon Slides TUOAB202 [5.173 MB]  
 
MOPEA024 Effects of Insertion Devices in the High Field Lattice Structure of ILSF Storage Ring 124
 
  • F. Saeidi, E. Ahmadi, H. Ghasem
    ILSF, Tehran, Iran
  • H. Ghasem
    IPM, Tehran, Iran
 
  We have studied effects of different insertion devices(IDs) in the high filed ILSF storage ring. Radiation from the IDs leads to change emittance and energy spread of the ring and magnetic field of them results to beta-beating, tune shift and shrink of dynamic aperture. This paper describes effects of the IDs on beam parameters of the high field lattice structure of ILSF storage ring and proposes the compensation method of these effects.
farhad.saeidi@ipm.ir
 
 
MOPEA025 Closed Orbit Correction in the High Field Lattice of ILSF Storage Ring 127
 
  • H. Ghasem
    IPM, Tehran, Iran
  • E. Ahmadi, F. Saeidi
    ILSF, Tehran, Iran
 
  In the high intensity storage rings, there are many sources of errors which lead to closed orbit distortion (COD). To study effect of errors on closed orbit and to find optimum arrangement of beam position monitors (BPMs) and strength of corrector magnets, different types of expected misalignments and field errors were imposed randomly in the high field lattice of ILSF storage ring. This paper gives the results of closed orbit correction in the ILSF ring and stipulates the strength of correctors.  
 
MOPEA026 X-ray Powder Diffraction Beamline for the Iranian Light Source Facility 130
 
  • H. Khosroabadi, S. Amiri, H. Ghasem, A. Gholampour
    ILSF, Tehran, Iran
  • H. Ghasem
    IPM, Tehran, Iran
 
  Iranian Light Source Facility (ILSF) project has been initiated since 2010 in order to design and construction of a synchrotron facility in Iran. In parallel with the machine’s activities, scientific committee, users community and beamline technical group are working on different aspects of the scientific and beamline design issues for the operating phase after construction*. X-ray powder diffraction beamline is one of the most priorities in ILSF due to wide range of applications and big potential user community in Iran. Conceptual design report of this beamline operating in other worldwide synchrotrons have been studied and compared in details. The light source and schematic design of the beamline has been prepared in this study. Then, the parameters have been calculated and have been optimized by employing computational software such as XOP and SHADOW**. The optical properties of the optical elements such as reflectivity, absorbance, Bragg diffraction, rocking curve, aberration, etc have been studied at this design, and the results have been compared with the other published results. The outcome and final results of this design progress will be discussed in details.
References:
* Conceptual Design Report (2011, summer), ILSF, http://ilsf.ipm.ac.ir/.
** http://www.esrf.eu/UsersAndScience/Experiments/TBS/SciSoft/xop2.3.
 
 
WEPWA012 Preliminary Design of Transfer Lines for the ILSF Accelerator Complex 2153
 
  • H. Ghasem
    IPM, Tehran, Iran
  • E. Ahmadi, F. Saeidi
    ILSF, Tehran, Iran
 
  There are two transfer lines (T-lines) which link the Iranian Light Source Facility (ILSF) accelerator complex to gather. Several criterias have been considered in design stage of the T-lines. This paper gives linear optimization results of the designed T-lines based on the first layout of the ILSF.  
 
WEPWA013 Injection Scheme into the High Field ILSF Storage Ring 2156
 
  • H. Ghasem
    IPM, Tehran, Iran
  • E. Ahmadi, F. Saeidi
    ILSF, Tehran, Iran
 
  The injection system into a storage ring of a synchrotron radiation facility significantly affects quality of the electron beam and the radiated x-ray. The extracted 3 GeV electron beam from the booster synchrotron of the ILSF is transferred via the BTS transfer line and injected into the ILSF storage ring based on high field lattice structure. This paper describes the injection procedure into the ILSF storage ring and gives the electron tracking results of the injected beam.