| Paper | Title | Page |
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| MOPRO069 | Progress Status of the Iranian Light Source Facility Laboratory | 240 |
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| The Iranian Light Source Facility Project (ILSF) is a 3 GeV third generation light source with a current of 400 mA which will be built on a land of 50 hectares area in the city of Qazvin, located 150 km West of Tehran. ILSF conceptual design report, CDR, was published in October 2012. To have a competitive leading position in the future, 489.6 m storage ring of ILSF is designed to emphasize on small emittance electron beam( 0.93 nm-rad), high photon flux density, brightness, stability and reliability. Moreover, 40% of 489.6 m ring circumference is straight sections (14×8 m+ 14×6 m) which are long enough for the commonly used insertion devices. Some prototype accelerator components such as high power solid state radio frequency amplifiers, LLRF system, thermionic RF gun, Storage ring H-type dipole and quadruple magnets, Hall probe system for magnetic measurement and highly stable magnet power supplies have been constructed in ILSF R&D laboratory. | ||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPRO069 | |
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| MOPRO070 | Study on Ground Vibration Characteristics of Iranian Light Source Facility | 243 |
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| In this study the results of ground vibration measurement for the site of Iranian Light Source Facility (ILSF) has been investigated. Light source buildings are very sensitive to the ground weak motions. Sources for the ground vibrations could be Cultural noise from human activities like traffic and industrial works. In order to satisfy requirements for level of the ground vibrations, a perfect ground vibration survey has been conducted and compared with other same projects. Two broad-band seismometers were utilized for surveying the ground vibration at ILSF site. The raw data were pre-processed as well as analyzed in term of seismology and engineering aspects. Spectrum amplitudes along with powers of the vibration amplitudes were calculated at the time domain. The power spectral density of vibration displacements were extracted from the measurements and were compared with results of other synchrotron projects. The results show that the dedicated site for ILSF is in the appropriate condition in the point view of ground vibration issues. | ||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPRO070 | |
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| TUPRO086 | Iranian Light Source Facility Storage Ring Low Field Magnets | 1241 |
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Iranian Light Source Facility (ILSF) is a 3 GeV Synchrotron light source with the circumference of 489.6 m. Using locally available material and the emittance of less than 1 nm-rad are two main points of the ILSF storage ring lattice, consisting of 56 low field pure bending magnets, 252 quadrupoles and 196 sextupoles with additional coils for the correctors and skew quadrupoles. The physical designs of these magnets have been performed relying on two dimensional codes POISSON [1] and FEMM [2]. Three dimensional RADIA [3] was practiced too, to audit chamfering values.
Farhad. Saeidi@Ipm.ir |
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| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-TUPRO086 | |
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| WEPRO057 | Effect of the Electron Beam Emittance on the ILSF Radiation of Sources and Beamline Design | 2075 |
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| At the Iranian Light Source Facility (ILSF), two different storage ring options are being studied. The designs differ in emittance. In the first option the calculated emittance is 3.278 nm-rad whereas for the second option emittance is 0.937 nm-rad. In this paper the electron beam emittance effects on the source radiation properties from bending magnet, wiggler and undulator, X-ray optics and the beamline design are carefully studied. The present calculations demonstrate that in the case of 0.937 nm-rad brilliance of undulator is increased by a factor of about 5. For bending magnet, flux is reduced almost 1 order of magnitude for hard x-ray regime. Because of smaller size of the source for undulator at the case of 0.937 nm-rad, we can achieve to a smaller spot size and higher resolution with easier focusing systems and usual kind of monochromator than the emittance of 3.278 nm-rad and for the bending magnet hard x-ray beamline, size of the mirrors reduced 30% in the 0.937 nm-rad emittance case, so its result is shorter mirror, low cost and perhaps more challengeable heat load. | ||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRO057 | |
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| WEPRO058 | Photoemission Electron Microscopy Branch of Spectromicroscopy Beamline of the Iranian Light Source Facility | 2078 |
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| The Spectromicroscopy beamline is one of the day one beamlines of the Iranian Light Source Facility project in the field of soft x-ray spectroscopy. This beamline is designed to cover the 90-2500eV energy range with about 8000 resolving power, and the minimum spot size of about 10×4 micrometer 2 at sample position. Brilliance, flux and photon size and divergence in the whole range of energy has been calculated for a 4.3m linear undulator using SPECTRA code. This undulator has 1015 ph/s(0.1% B.W.) photon flux at 96 eV energy & 400 mA electron current. A circular pinhole with maximum diameter size of 2.52mm has been inserted in a distance of 10m from the source to pass 95% radiated. Primary layout of this branch includes a collimating mirror, a varied included-angle plane grating monochromator, and a KB bendable elliptical cylinder mirror. The ray tracing calculation by using computational software SHADOW has been done to determine and optimize of the important optical parameters. Three plane gratings with different uniform line density (700, 900, 1200 lines/mm) have been used to cover the whole energy range with the resolving power of 0.75-0.8×104 depending on the photon energy. | ||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRO058 | |
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| WEPME030 | Design and Construction of a Prototype Sputter ion Pump in ILSF | 2323 |
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| Design and construction process of special kind of sputter ion pump is described briefly in this paper. In order to investigate the optimization of effective parameters in choosing and designing ILSF ion pumps, this pump has been designed and manufactured. By optimizing some parameters such as dimension and shape of penning cells, anode voltage, magnetic field and internal structure of pump, it is possible to significantly decrease the cost of construction and operation of synchrotron vacuum system. One of the most important advantages of this design, is that the initial parameters and finally internal structure of the prototype pump are changeable easily. The effect of parameters like anode voltage, magnetic field etc. on pumping speed and final pressure are described. With the existing optimization it is expected that an ultimate pressure of 1x10-11 Torr could be achieved. | ||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPME030 | |
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| WEPME031 | Magnetic Design of the First Prototype Pure Permanent Magnet Undulator for the ILSF | 2326 |
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| Iranian light source facility (ILSF) is a 3GeV, 400 mA, 3rd generation light source under design and construction. This paper describes the details of the preliminary magnetic design of the first prototype PPM undulator for the ILSF. In the preliminary design, the undulator period and some other parameters have been determined to reach desired x-ray spectrum to be used for soft x-ray application. A PPM layout and a model undulator with 16 poles is used to calculate the properties of the designs. | ||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPME031 | |
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| THPRO045 | Design and Construction of a Thermionic Cathode RF Electron Gun for Iranian Light Source Facility | 2965 |
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| We present a program for the design and construction of a thermionic cathode RF gun to produce bright electron beams, consisting in the first step toward the possible development of S band linac based pre-injector at Iranian Light Source Facility (ILSF). The program is aimed at the goal to attain a beam quality as requested by ILSF. As a first step within this mainstream, we are currently developing a thermionic cathode side coupling RF electron gun which is expected to deliver 100 pC bunches with emittances below 2 mm-mrad at 2.5 MeV. We report the performed simulation and design activity, as well as cold test results of first fabricated prototype, which are in good agreement with simulation results. | ||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPRO045 | |
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| THPRO106 | Developing Matlab-based Accelerator Physics Application for the ILSF Commissioning and Operation | 3143 |
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| The ILSF control system is supposed to operate with Epics system. The simultaneous use of Matlab Middle Layer (MML) and Accelerator Toolbox (AT) allow for parallel, high level machine control and accelerator physics application that communicate with control system via Epics via channel access. The MML has been papered for ILSF storage ring. Some high level applications are also tested in ILSF storage ring via MML. | ||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPRO106 | |
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