WOAB  —  Development in the South, East, and Mideast/Light Sources   (18-May-05   08:30—12:25)

Chair: M.W. Poole, CCLRC/DL, Daresbury, Warrington, Cheshire

Paper Title Page
WOAB001 The Australian Synchrotron Project - Update 102
  • A. Jackson
    ASP, Clayton, Victoria
  The Australian Synchrotron – a synchrotron light facility based on a 3-GeV electron storage ring – is under construction at a site in the Metropolitan District of Melbourne. Building preparation started on a “green-field” site in September 2003 and staff moved in to their new offices in February 2005. Installation of the technical equipment started in April 2005 with all accelerator contracts expected to be completed before April 2006. Storage Ring commissioning with beam will start in June 2006, and project completion is scheduled for March 2007. In this paper we present an overview of the facility and discuss progress to date in meeting this very aggressive schedule.  
WOAB002 Status of the Shanghai Synchrotron Radiation Facility 214
  • Z. Zhao, H. Ding, H. Xu
    SINAP, Shanghai
  The Shanghai Synchrotron Radiation Facility (SSRF) made its ground breaking at Zhang-Jiang High Tech Park on Dec.25, 2004 and moved into its construction phase with the plan of commencing user’s operation from April 2009. The SSRF complex is based on a 3.5GeV storage ring optimized to operate with top-up injection, mini-gap undulators and superconducting RF system, the 432m circumference storage ring provides 18 ID straight sections (4X12.0m and 16X6.5m), and four of them will be used for the first SSRF beam lines. The SSRF project was proposed in 1995, and since then it has experienced the conceptual design stage, the R&D program and the design optimization phase. This paper presents the updated design specifications and the construction status of the SSRF project.  
WOAB003 The Brazilian Synchrotron Light Source 325
  • P.F. Tavares, J.A. Brum
    LNLS, Campinas
  The Brazilian Synchrotron Radiation Laboratory has been operating the only light source in the southern hemisphere since July 1997. Over this 7 year period, approximately 22000 hours of beam time were delivered to users from all over Brazil as well as from 10 other countries. In this article, we report on the present configuration of the 1.37 GeV electron storage ring and associated instrumentation, describe recent improvements to the light source and analyze future prespectives including the installation of insertion devices and additional beamlines.  
WOAB004 Applying Frequency Map Analysis to the Australian Synchrotron Storage Ring 407
  • Y.E. Tan, M.J. Boland, G. LeBlanc
    ASP, Clayton, Victoria
  The technique of frequency map analysis has been applied to study the transverse dynamic aperture of the Australian Synchrotron Storage Ring. The results have been used to set the strengths of sextupoles to optimise the dynamic aperture. The effects of the allowed harmonics in the quadrupoles and dipole edge effects are discussed.  
WOAB005 The Status of Turkic Accelerator Complex Proposal 449
  • S. Sultansoy, M. Yilmaz
    Gazi University, Faculty of Science and Arts, Ankara
  • O. Cakir, A.K. Ciftci, E. Recepoglu, O. Yavas
    Ankara University, Faculty of Sciences, Tandogan/Ankara
  Recently, the Turkic Accelerator Complex (TAC) is proposed as a regional facility for accelerator based fundamental and applied research. The complex will include linac on ring type electron-positron collider as a phi, charm and tau factory, linac based free electron laser (FEL), ring based third generation syncrothron radiation (SR) source and a few GeV proton accelerator. Preliminary estimations show that hundred inverse femto barn integral luminosity per year can be achieved for factory options. The FEL facility is planned to obtain laser beam between IR and soft X-ray region. In addition, SR facility will produce photon beams in UV and X-ray region. The proton accelerator will give opportunity to produce muon and neutron beams for applied research. The current status of the conceptual study of the complex is presented.  
WOAB006 Report on Synchrotron Radiation Source Indus-2
  • V.C. Sahni
    CAT, Indore (M.P.)
  The 2.5 GeV electron SRS, Indus-2 being built at CAT, Indore (India) is now at the final installation and integration stage. The storage ring with a circumference of 172.47m, has eight super periods and eight 4.5m long straight sections of which five are meant for insertion devices. Major sub-systems like, magnets, vacuum chambers, SIP/TSP pumps, RF power system, magnet power supplies, beam diagnostics devices etc. have been fabricated indigenously and qualified. Most of the systems are now located in the ring and their final alignment is on. Barring unforeseen problems cropping up, commissioning of the system will start with Transferlin·10-3 and then the trial beam injection into the ring will commence in mid 2005.  
WOAB007 SESAME in Jordan 586
  • G. Vignola, A. Amro, M. Attal, F. Makahleh, M.M. Shehab, S. Varnasseri
    SESAME, Amman
  An overview of the status of SESAME is presented. SESAME (Synchrotron-light for Experimental Science and Application in the Middle East) is an Independent Intergovernmental Organization developed and officially established under the auspices of UNESCO. It involves at the present the following Member States: Bahrain, Egypt, Islamic Republic of Iran, Israel, Jordan, Pakistan, Palestinian Authority, Turkey and United Arab Emirates. Moreover the following States are Observer of SESAME Council: France, Germany, Greece, Italy, Kuwait, Russian Federation, Sweden, UK and United States of America. SESAME will become a major international research center in the Middle East, located in Allan, Jordan. The machine design is based on a 2.5 GeV 3rd generation Light Source with an emittance of 26 nm.rad and 11 straights for insertion devices. The conceptual design of the accelerator complex has been frozen and the engineering design is started. The Phase I scientific program for SESAME has also been finalized and it foresees 6 beamlines. The construction of SESAME building is in progress and the beneficial occupancy is expected by the first half of 2006. The completion of the accelerators complex construction is scheduled for the end of 2009.  
WOAB008 CANDLE Project Overview 629
  • V.M. Tsakanov
    CANDLE, Yerevan
  CANDLE is a 3 GeV energy synchrotron light facility project in the Republic of Armenia. The main design features of the new facility are given. The results of the beam physics study in the future facility are overviewed including the machine impedance, ion trapping, single and multi-bunch instabilities, beam lifetime etc. The main requirements to the magnetic, RF and vacuum systems are discussed. The report includes the status of the project and the nearest R&D plans.  
WOAB009 Design, Development, Construction and Installation of a Ceramic Chamber for a Pulsed Kicker at the LNLS Storage Ring 689
  • M.J. Ferreira, O.R. Bagnato, R.O. Ferraz, F. R. Francisco, A. L. Gobbi, R.M. Seraphim, M.B. Silva
    LNLS, Campinas
  Funding: MCT - ABTLuS/LNLS.

Following the upgrade of the LNLS injector system with the addition of a 500 MeV booster synchrotron,the storage ring in-vacuum ferrite injection kicker magnets started to show overheating due the interaction with high frequency electromagnetic fields induced by the electron beam. In this paper, we describe the design of a new ceramic chamber for the kickers which minimize this effect by decreasing the coupling impedance of the kickers and their interaction with the electron beam.

  • K. Zheng, W. Li, J.H. Liu, L. Liu, B. Sun, J.H. Wang, Y.L. Yang
    USTC/NSRL, Hefei, Anhui
  Funding: Supported by National Natural Science Project (10175063)

In this paper, we introduce a bunch tracing system which is based on a bunch-by-bunch (BxB) measurement system in Hefei Light Source (HLS), and present the analysis of the experiment results. Using an in-phase gate signal and a double balance mixer to control an external trigger of ADC, we test the reliability of the BxB system. By this system, we can trace all marked bunches in a set time slot or in manual burst mode. We can record all bunches’ data during the injection, ramping, wiggler excitation and normal operation, and provide a powerful facility for machine study.