02 Synchrotron Light Sources and FELs

A05 Synchrotron Radiation Facilities

Paper Title Page
MOZCG01 Top-Up Operation in Light Sources 36
 
  • H. Ohkuma
    JASRI/SPring-8, Hyogo-ken
 
  The top-up operation for user experiments has been performed at several light sources, and at most of the new light sources the top-up operation is considered in their design phase. In this paper, an overview of the top-up status in light sources is presented, including the performance of injectors for top-up in light sources, technological aspects, examples and operational data from existing machines and proposed upgrades, etc.  
slides icon Slides  
TUXM01 Ultra Low Emittance Light Sources 988
 
  • J. Bengtsson
    BNL, Upton, New York
 
  The talk will cover the special issues for reaching sub-nm emittance in a storage ring. Effects of damping wigglers, intra-beam scattering and life-time issues, instabilities, dynamic aperature optimisation, control of optics, dispersion and orbit correction. Results and example of upgrades to existing machine and NSLS-II and Petra-III should be given.

First priority

 
slides icon Slides  
TUXM02 Performance and Trends of Storage Ring Light Sources 993
 
  • R. Bartolini
    Diamond, Oxfordshire
 
  We present an overview of the performance of the latest generation of operating storage ring light sources. Emphasis is given to the comparison of design parameters to the achieved performances. Trends and innovations of established light sources to meet the increasing user’s demand for high brightness and different time structures will be presented. Report on upgrades and improvements will be given including orbit stability, top-up, feedback systems, lower-ID gap operation and a review of the activities for the generation of ultra-short radiation pulses in storage rings.  
slides icon Slides  
TUOAM01 Commissioning Status of the Shanghai Synchrotron Radiation Facility 998
 
  • Z. T. Zhao, H. Ding, H. Xu
    SINAP, Shanghai
 
  The Shanghai Synchrotron Radiation Facility (SSRF), an intermediate energy storage ring based third generation light source, is under commissioning at a site in Shanghai Zhang-Jiang Hi-Tech Park. The ground breaking of this project was made on Dec.25, 2004, and on Dec.24, 2007 electron beam was stored and accumulated in the SSRF storage ring. Since then the accelerator commissioning and beamline installation have been being continued toward the scheduled user operation from May 2009. This paper presents an overview of the SSRF status and its machine commissioning progress.  
slides icon Slides  
WEPC001 Status of PETRA III 1977
 
  • K. Balewski
    DESY, Hamburg
 
  PETRA III is a new hard x-ray synchrotron radiation source which will be operated at 6 GeV with a extremely low horizontal emittance of 1nmrad. This new light source will be the result of a conversion of the existing accelerator PETRA II into a light source. The conversion comprises the complete rebuilding of one eighth of the 2304 m long storage ring, which will then house 14 undulator beam lines and the modernisation and refurbishment of the remaining seven eighths. In addition two 100m long damping wiggler section will be installed which are required to achieve the small design emittance. During the last four years extensive design work, construction and production of components have been carried out to prepare for the conversion. Since the 2nd of July the construction activities have started when PETRA II was no longer needed as a pre-accelerator for HERA. At present the project is still on track so that operation with beam is foreseen for January 2009 and first user experiments in the second half of 2009. In this report a brief overview of the project and the status of the constructional work, the different components and the installation in the tunnel will be given.  
WEPC002 Analysis of Beam Orbit Stability and Ground Vibrations at the Diamond Storage Ring 1980
 
  • R. Bartolini, H. C. Huang, J. Kay, I. P.S. Martin
    Diamond, Oxfordshire
 
  With the aim of understanding and improving the beam orbit stability at the Diamond storage ring we launched an extensive campaign of ground and magnets vibration measurements in order to identify the sources of ground vibration and how they affect the beam orbit stability through the girder resonances. We present here the results of the measurements performed during 2007 along with a discussion of the possible remedies and the implications for the orbit feedback systems.  
WEPC003 Coupling Control at the SLS 1983
 
  • A. Streun, Å. Andersson, M. Böge, A. Luedeke
    PSI, Villigen
 
  The vertical beam size measurement at the Swiss Light Source (SLS) is based on vertically polarized visual light and allows to verify a vertical emittance of a few pm rad, resp. an emittance ratio in the 10-4 range obtained in 400 mA top-up user operation mode by tuning the lattice by means of 24 skew quadrupoles. Suppression of betatron coupling by local and global coupling correction prevents losses of Touschek scattered particles at the narrow vertical gaps of the in-vacuum undulators and thus protects these devices and increases beam lifetime, resp. the top-up interval. We will report on our experience with the beam size monitor, on the method of coupling control and on the achievements in vertical emittance and beam lifetime.  
WEPC004 Design Status of the Taiwan Photon Source 1986
 
  • C.-C. Kuo, H.-P. Chang, H. C. Chao, P. J. Chou, K. S. Liang, W. T. Liu, G.-H. Luo, A. Rusanov, H.-J. Tsai, J. W. Tsai
    NSRRC, Hsinchu
 
  We report updated design works for a new 3-3.3 GeV synchrotron light source called Taiwan Photon Source (TPS). The lattice type of the TPS is a 24-cell DBA structure and the circumference is 518.4 m. The injector booster will be housed in the same tunnel. We present the lattice design, the accelerator physics issues and its expected performances.  
WEPC006 Beam Lifetime and Collective Effects in Taiwan Photon Source 1992
 
  • P. J. Chou, H.-P. Chang, C.-C. Kuo, W. T. Liu, H.-J. Tsai
    NSRRC, Hsinchu
 
  The design of Taiwan Photon Source (TPS) has a natural emittance less than 2 nm-rad and low emittance coupling. The nominal rms bunch length is less than 3 mm. Several small-gap undulators are planned to provide x-ray photon beam with extremely high brightness. The vertical gap of these undulators are in the range of 5-7 mm. The TPS ring will be operated at top-up mode with high beam current. Various collective effects due to high beam current are investigated. Impacts of small-gap undulators to the beam lifetime are carefully studied. The results of theoretical analysis are presented. Proposals to overcome deleterious effects due to high beam current and small-gap undulators are also discussed.  
WEPC007 Vacuum Performance of the Diamond Light Source In-vacuum Insertion Devices 1995
 
  • M. P. Cox, S. Bryan, B. F. Macdonald, H. S. Shiers
    Diamond, Oxfordshire
 
  Diamond Light Source is the UK's new 3 GeV 3rd generation synchrotron light source with a 562 m circumference electron storage ring. At the start of user operations in January 2007, 5 in-vacuum undulators were in operation and a further 3 units have been installed subsequently. This paper describes the vacuum performance of these devices. 3 different mechanical configurations with different undulator canting angle and different pumping arrangements of the interconnecting vessels are installed. One configuration has non-evaporable getter (NEG) coated interconnecting vessels. Vacuum simulations were carried out on these configurations as part of the vacuum design process to predict their performance. Following final magnetic characterization, each of the devices was vacuum assembled and baked ex-situ for an extended period and then installed under dry nitrogen purge conditions, eliminating the need for a time-consuming in-situ bakeout in most cases. After a period of pump down and beam conditioning, the operating pressures in all the in-vacuum undulators were below the target specification and produced acceptably low Gas Bremsstrahlung radiation levels in the beamlines.  
WEPC008 Status of the SSRF Storage Ring 1998
 
  • Z. M. Dai, D. K. Liu, L. G. Liu, L. Yin, Z. T. Zhao
    SINAP, Shanghai
 
  The SSRF storage ring is composed of 20 DBA cells with energy of 3.5GeV and circumference of 432m. The installation of the SSRF storage ring was started on June 11, 2007, and finished in the beginning of Dec. 2007. The system tests of hardware and software for storage ring were completed in the middle of Dec. 2007. The commissioning of the storage ring started on Dec. 21, 2007, and the 100mA stored beam was achieved for the first time on Jan. 3, 2008. The design, installation and commissioning of the SSRF storage ring are described in this paper  
WEPC009 Progress of ALBA 2001
 
  • D. Einfeld
    ALBA, Bellaterra
 
  The construction of the ALBA Synchrotron Light Source in Barcelona (Spain) is well advanced. In spring of this year the 100 MeV Linac will be installed and results from the commissioning will be reported on this conference. The different components for the accelerators have successfully completed the prototyping phase and the different series are now under production. Installation of Booster and Storage Ring should start in summer of this year and commissioning is planned for spring 2009. The construction status will be presented.  
WEPC010 Upgrade of the ESRF Accelerator Complex 2004
 
  • P. Elleaume, J. C. Biasci, J-F. B. Bouteille, J. M. Chaize, J. Chavanne, L. Farvacque, L. Goirand, M. Hahn, L. Hardy, J. Jacob, R. Kersevan, J. M. Koch, J. M. Mercier, A. Panzarella, C. Penel, T. P. Perron, E. Plouviez, E. Rabeuf, J.-L. Revol, A. Ropert, K. B. Scheidt, D. Schmied, V. Serriere
    ESRF, Grenoble
 
  The ESRF, the first third generation synchrotron radiation source, opened its first beamline in 1994 and has been continuously developed since then to satisfy the user community. However, the need arose to make a major upgrade of the infrastructure and accelerator complex in order to fulfil the request for new scientific applications*. The experimental Hall will be expanded and half of the beamlines reconstructed. The storage ring lattice will be modified to provide space for longer as well as a larger number of insertion devices. New insertion devices will be developed possibly based on in-vacuum permanent magnets at cryogenic temperature. The electron beam positioning system will be rebuilt to provide a higher photon beam stability. The RF system will face a major reconstruction with a new type of RF transmitters and HOM damped cavities allowing stable operation at a ring current of 300 mA without feedback. The injector system will be upgraded to operate the 16 and 4 bunch fillings in the top-up mode in order to increase the average current and obtain a higher photon beam stability.

*ESRF Science and Technology Programme, 2008-2017.

 
WEPC011 Using Multi-bend Achromats in Synchrotron Radiation Sources 2007
 
  • M. Eriksson, A. Hansson, S. C. Leemann, L.-J. Lindgren, M. Sjöström, E. J. Wallén
    MAX-lab, Lund
  • L. Rivkin, A. Streun
    PSI, Villigen
 
  Multi-bend achromats offer small electron beam emittance, large energy acceptance and a good dynamic aperture. Two examples are discussed in the article, each using 7-bend achromats; a 12 achromat lattice and a 20 achromat one. Some possible technical solutions associated with the dense lattices are discussed: magnet technology, vacuum system and RF system. Some characteristics of the two rings are also presented; effects of Intra Beam Scattering, Touschek life-time and the electron beam parameter values.  
WEPC012 Commissioning and Operation of the Metrology Light Source (MLS) 2010
 
  • J. Feikes, M. Abo-Bakr, K. B. Buerkmann-Gehrlein, M. V. Hartrott, J. Rahn, G. Wuestefeld
    BESSY GmbH, Berlin
  • R. Klein, G. Ulm
    PTB, Berlin
 
  The Metrology Light Source (MLS) is dedicated to metrological and technological developments in the UV and EUV spectral range and in the IR and THz region. The new electron storage ring of the Physikalisch-Technische Bundesanstalt (PTB) is located next to the BESSY II storage ring in Berlin - Adlershof. The MLS with its 48 m circumference can be operated at any electron beam energy between 105 MeV and 630 MeV. The electron beam currents vary from 1 pA (one stored electron) up to 200 mA. These specific modes of operation were achieved during the initial one year phase of the commissioning of the storage ring until April 2008, when the regular MLS user operation started. The basis for this success was the previously commissioned microtron which is the main part of the injection system.  
WEPC013 Commissioning of Medium Emittance Lattice of HLS Storage Ring 2013
 
  • G. Feng, W. Li, L. Liu, L. Wang, H. Xu, S. C. Zhang
    USTC/NSRL, Hefei, Anhui
 
  Hefei Light Source (HLS) is a second generation light source, whose emittance is about 160 nmrad in normal optics. Lowering beam emittance is the most effective measure to enhance light source brilliance. Considering beam lifetime limitation, a lattice with medium beam emittance was brought forward. Through distributed dispersion in straight section, the beam emittance was reduced to 80 nmrad. At same time, the betatron tunes were kept same as before. In this way, the focusing parameters can be tuned to new one smoothly. With the new lattice parameters, the brilliance of HLS is increased by two factors.  
WEPC014 Beam Lifetime Studies of Hefei Advanced Light Source (HALS) Storage Ring 2016
 
  • G. Feng, W. Li, L. Liu, L. Wang, C.-F. Wu, H. Xu, S. C. Zhang
    USTC/NSRL, Hefei, Anhui
 
  Hefei Advanced Light Source (HALS) will be a high brightness light source with about 0.2nmrad emittance at 1.5GeV. Ultra low beam emittance and relatively low beam energy of HALS would result in poor beam lifetime. Comparing the beam-gas scattering and Touschek scattering effects, a conclusion can be drawn that Beam lifetime will be affected strongly by Touschek scattering. Touschek lifetime has been studied considering linear and nonlinear effects for the lattice structure. Relations between lifetime and RF cavity voltage, lifetime and emittance coupling, lifetime and gap heights of insertion devices have been calculated respectively. After the optimization, proper cavity voltage and emittance coupling are chosen to get about 1.06 hours of total lifetime including gas scattering losses effect. Installing a third harmonic RF cavity can lengthen the beam bunch to increase the total lifetime to about 3.85 hours. Top up injection operation will be applied to keep bunch current within the required value.  
WEPC016 Operation Status and Performances Upgrade on SOLEIL Storage Ring 2022
 
  • J.-M. Filhol, J. C. Besson, F. Bouvet, P. Brunelle, L. Cassinari, M.-E. Couprie, J.-C. Denard, C. Herbeaux, J.-F. Lamarre, J.-P. Lavieville, P. Lebasque, M.-P. Level, A. Loulergue, P. Marchand, A. Nadji, L. S. Nadolski, R. Nagaoka, M.-A. Tordeux
    SOLEIL, Gif-sur-Yvette
 
  SOLEIL is the French 2.75 GeV third generation synchrotron light source delivering beam to users since January 2007. Beginning of 2008 up to 13 beam-lines are taking beam, 7 from insertion devices (IDs), 2 from IR ports, and 4 from dipole ports, and 6 of them are open to external Users. Users have a full control of their IDs. With a 300 mA stored beam current in multi-bunch filling pattern, and position stability in the few micron range, the main target performances have been reached. A beam of 50 mA in 8 bunches was delivered to users for the first time in December 2007 for time structure experiments. Operation and performance status will first be given, namely subsystem behaviour (RF, vacuum, …), beam optics, orbit stability, beam lifetime, and operation statistics. Then the main objectives for 2008 will be reviewed: delivery of 4000 hours of user beam time, installation and commissioning of a second cryomodule for reaching the 500 mA current target, construction and installation of 6 new IDs leading to a total number of 17, improvement of the orbit stability with a fast orbit feedback complementary to the slow orbit one, and preparation for top-up operation.  
WEPC017 Short X-ray Pulse Generation in Taiwan Photon Source Using Deflecting Cavity 2025
 
  • H. Ghasem
    IPM, Tehran
  • G.-H. Luo
    NSRRC, Hsinchu
 
  We have purposed to use deflecting cavity for short X-ray pulses production in 3 GeV Taiwan Photon Source (TPS). Typical electron bunch length in TPS for 1.1MV RF gap voltage is about 5.7mm. Deflecting cavity generates correlation between longitudinal position and vertical momentum of particles in a bunch. Vertical kick of particle separates the photons that emit from ID vertically. Slit and asymmetric crystal in TPS beam line are used to compress the photon pulse duration. For a 60 m beam line of TPS, the operating of deflecting cavity up to 6MV voltage and eighth harmonic yields an FWHM pulse duration of radiated X-ray of about 0.48 ps for users.  
WEPC022 Operation and Recent Developments at the ESRF 2028
 
  • J.-L. Revol, J. C. Biasci, J-F. B. Bouteille, J. M. Chaize, J. Chavanne, P. Elleaume, L. Farvacque, G. Gautier, L. Goirand, M. Hahn, L. Hardy, J. Jacob, R. Kersevan, J. M. Koch, J. M. Mercier, I. Parat, C. Penel, T. P. Perron, E. Plouviez, A. Ropert, K. B. Scheidt, D. Schmied, V. Serriere
    ESRF, Grenoble
 
  The ESRF has been operating for a period close to fifteen years and is now looking towards an ambitious upgrade programme for the coming ten years. This paper reports on the performances achieved today with the ESRF storage ring, as well as developments accomplished and projects underway. These include a new filling mode for pump and probe experiments, the evolution of insertion devices, developments to improve beam stability, in particular transverse and longitudinal multibunch feedbacks, and the current increase from 200 to 300 mA. The upgrade of the lattice to accommodate longer straight sections and the new High Quality Power Supply system will also be presented. The machine reliability and the most important failures will be discussed. Finally, the use of an electronic logbook in routine operation will be presented, and the status on the control system including TANGO collaboration given.  
WEPC023 Ideas for a Future PEP Light Source 2031
 
  • R. O. Hettel, K. L.F. Bane, L. D. Bentson, K. J. Bertsche, S. M. Brennan, Y. Cai, A. Chao, S. DeBarger, V. A. Dolgashev, X. Huang, Z. Huang, D. Kharakh, Y. Nosochkov, T. Rabedeau, J. A. Safranek, J. Seeman, J. Stohr, G. V. Stupakov, S. G. Tantawi, L. Wang, M.-H. Wang, U. Wienands
    SLAC, Menlo Park, California
  • I. Lindau
    Stanford University, Stanford, Califormia
  • C. Pellegrini
    UCLA, Los Angeles, California
 
  With the termination of operation of the PEP-II storage rings for high energy physics at hand, and with the migration of accelerator operation at SLAC in general to photon science applications, a study of the potential conversion of the PEP-II to a future light source has been initiated. With a circumference of 2.2 km and the capability for high current operation, it is clear that operating a converted ring at medium energy (3-6 GeV) could offer very low emittance and an average brightness of order 1022, limited primarily by the power handling capacity of photon beam line optical components. Higher brightness in the soft X-ray regime might be reached with partial lasing in long undulators if the emittance is sufficiently low, and high peak brightness could be reached with seeded FEL emission. Advanced pulsed rf technology might be used to generate short bunches and fast switched polarization in soft X-ray rf undulators. An overview of the preliminary findings of the PEP Light Source study group will be presented, including lattice, X-ray source and beam line options.  
WEPC024 Low Beta Structure for the ANKA Storage Ring 2034
 
  • E. Huttel, I. Birkel, A.-S. Müller, P. Wesolowski
    FZK, Karlsruhe
 
  The ANKA storage ring has a fourfold symmetry with a double DBA structure. Four (~1.7 m) straight sections are used for the RF and the injection. Four sections (~ 4.5 m) are used for insertion devices (three installed). The beta functions in these sections are 14, respectively 7 m (horizontal/vertical). This is not ideal for small gap (7 mm) insertion devices. Reducing the vertical beta function to 2 m is possible with the present magnet configuration and is done for special user operation. Reducing both the horizontal and vertical beta function is favoured for one future beam line. This will afford a change of the present magnet configuration. Different options have been calculated and will be discussed.  
WEPC025 First 18 Months Operation of the Diamond Storage Ring RF System 2037
 
  • M. Jensen, M. Maddock, P. J. Marten, S. A. Pande, S. Rains, A. F. Rankin, D. Spink, A. V. Watkins
    Diamond, Oxfordshire
 
  Since the Diamond Light Source became operational in January 2007, the storage ring RF system has operated for 5000 hours in 2007 and is scheduled to operate for 5350 hrs in 2008. This paper presents some of the key challenges of the storage ring RF system including reliability, performance observations and future improvements.  
WEPC026 Laser – Beam Interaction and Calculation of the Sliced Bunch Radiation Spectra for the SLS FEMTO Beam Line 2040
 
  • D. K. Kalantaryan, G. A. Amatuni, V. M. Tsakanov
    CANDLE, Yerevan
  • P. Beaud, G. Ingold, A. Streun
    PSI, Villigen
 
  The FEMTO insertion at the Swiss Light Source (SLS) produces sub-ps X-ray pulses by modulating the electron energy in a slice of the bunch through interaction with a fs-laser. The electron energy modulation by the laser field in the wiggler magnet is studied analytically to calculate the radiation spectra from a sliced bunch. The analytical expressions for energy modulation and its envelope have been derived. The radiation spectra in the first magnet after the FEMTO insertion have been studied. The spectra of the coherent part of the radiation are determined using a Fourier transformation technique. For a Gaussian bunch the obtained results are compared with the tracking simulation study.  
WEPC027 Coherent THz Radiation at ELETTRA 2043
 
  • E. Karantzoulis, G. Penco, A. Perucchi
    ELETTRA, Basovizza, Trieste
  • S. Lupi
    Coherentia, Naples
 
  Coherent infra red radiation (CIR) has been observed since some time at ELETTRA under several machine parameter settings in the beam-line SISSI. Effort has been made to produce a “stable” THz signal for experimental use. The description of the machine settings to that end and the measurements performed are presented and discussed.  
WEPC028 Status of UVSOR-II and Light Source Developments 2046
 
  • M. Katoh, M. Adachi, K. Hayashi, M. Shimada, J. Yamazaki
    UVSOR, Okazaki
  • M. Hosaka, Y. Takashima, N. Yamamoto
    Nagoya University, Nagoya
  • A. Mochihashi
    JASRI/SPring-8, Hyogo-ken
 
  UVSOR, a 750 MeV synchrotron light source of 53m circumference had been operated for more than 20 years. After a major upgrade in 2003, this machine was renamed to be UVSOR-II. The ring is now routinely operated with low emittance of 27 nm-rad and with four undulators. Top up injection is under preparation. The ring is equipped with a resonator type free electron laser. The shortest wave length has reached 200nm. Several user experiments in the deep UV region are in progress. Coherent terahertz synchrotron radiation and coherent harmonic generation are extensively studied by using an ultra-short laser system, under international collaborations. An upgrade plan of the ring is under consideration to improve the experimental setup of the light source developments.  
WEPC029 Assessment of the Impact of External Stimuli on the Floor Stability of Diamond 2049
 
  • J. Kay, H. C. Huang
    Diamond, Oxfordshire
  • R. Bartolini
    JAI, Oxford
 
  Continuous vibration monitoring is carried out and the stability of the Diamond floor slab has been assessed with regard to how it has responded to various external stimuli. Data has been collected on weather conditions and comparison made at extremes with floor vibration. The impact of a high level walkway bridge on the hall floor has also been assessed and there was a unique opportunity for an operational facility to measure the vibration response during a complete power black-out. The impact of local construction work is also presented.  
WEPC030 Diamond Light Source: Moving from Commissioning to Full Machine Operation 2052
 
  • V. C. Kempson
    Diamond, Oxfordshire
 
  Diamond Light Source commenced routine operations in January 2007 providing light to beam lines for 3000 hours in 2007 with 4000 hours planned during 2008. During shut down periods Insertion Devices and photon Beam Lines, to utilise them, are being installed at a rate of four per year. The evolution of the performance of the machine during this period is described, including beam current, vacuum levels, beam lifetime etc. Machine operational statistics are also presented including a detailed fault analysis. Efforts that have been made to improve reliability are also discussed. On behalf of the Diamond machine staff.  
WEPC032 Absolute Measurement of the MLS Storage Ring Parameters 2055
 
  • R. Klein, G. Brandt, R. Fliegauf, A. Hoehl, R. Müller, R. Thornagel, G. Ulm
    PTB, Berlin
  • M. Abo-Bakr, K. B. Buerkmann-Gehrlein, J. Feikes, M. V. Hartrott, K. Holldack, J. Rahn, G. Wuestefeld
    BESSY GmbH, Berlin
 
  The Metrology Light Source (MLS), the new electron storage ring of the Physikalisch-Technische Bundesanstalt (PTB) located next to BESSY II in Berlin - Adlershof is dedicated to metrology and technology development in the UV and EUV spectral range as well as in the IR and THz region. The MLS can be operated at various electron beam energies up to approx. 600 MeV and at electron beam currents varying from 1 pA (one stored electron) up to 200 mA and is optimized for the generation of coherent synchrotron radiation. Of special interest for PTB is the operation of the MLS as a primary radiation source standard from the visible up to the X-ray region. Therefore the MLS is equipped with all the instrumentation necessary to measure the storage ring parameters needed for the calculation of the spectral photon flux according to the Schwinger theory with low uncertainty. The instrumentation and measurement results for the determination of the storage ring parameters are presented.  
WEPC033 Coherent Synchrotron Radiation at the Metrology Light Source of the PTB 2058
 
  • R. Müller, A. Hoehl, R. Klein, G. Ulm
    PTB, Berlin
  • M. Abo-Bakr, K. B. Buerkmann-Gehrlein, J. Feikes, M. V. Hartrott, J. S. Lee, J. Rahn, U. Schade, G. Wuestefeld
    BESSY GmbH, Berlin
 
  The Physikalisch-Technische Bundesanstalt (PTB), the German national metrology institute, has set up a low-energy electron storage ring in Berlin-Adlershof in close cooperation with the BESSY GmbH. The new storage ring, named Metrology Light Source (MLS), is mainly dedicated to metrology and technological developments in the EUV, VUV, and IR spectral range. Additionally, the MLS is the first machine designed and prepared for a special machine optics mode (low-alpha operation mode) based on an octupole correction scheme, for the production of coherent synchrotron radiation in the FIR and THz region. Two beamlines dedicated to the use of IR synchrotron radiation are now under commissioning: an IR bending magnet beamline optimized for the MIR to FIR and an IR edge radiation beamline. We report the status of the MLS operated in the low alpha mode and present first results from the commissioning.  
WEPC034 Present Status of Siam Photon Source 2061
 
  • P. Klysubun, S. Cheedket, G. G. Hoyes, M. Oyamada, W. Pairsuwan, S. Rugmai, P. Sudmuang
    NSRC, Nakhon Ratchasima
 
  The Siam Photon Source (SPS) is a 1.2 GeV synchrotron light source situated in Nakhon Ratchasima, Thailand. It is currently in the fourth year of routine operation for synchrotron radiation users. In order to address the increasing user demand for increasing beamtime, better beam position stability, and improved machine reliability, several machine improvements and upgrades have been undertaken during the past year. This report first briefly gives the overview and important parameters of the light source, and then describes the current operation status and operation statistics in 2007. Recent machine improvements, for instance, modernization of injector components, improvement of vacuum system, recalibration of beam position monitors, and orbit correction, are presented together with the initial synopsis of the successful installation of the first insertion device, a permanent magnet planar undulator.  
WEPC035 Present Status of PF-ring and PF-AR in KEK 2064
 
  • Y. Kobayashi, S. Asaoka, K. Ebihara, K. Haga, K. Harada, T. Honda, T. Ieiri, M. Izawa, T. Kageyama, T. Kasuga, M. Kikuchi, K. Kudo, H. Maezawa, K. Marutsuka, A. Mishina, T. Mitsuhashi, T. Miyajima, H. Miyauchi, S. Nagahashi, T. T. Nakamura, T. Nogami, T. Obina, K. Oide, M. Ono, T. Ozaki, C. O. Pak, H. Sakai, Y. Sakamoto, S. Sakanaka, H. Sasaki, Y. Sato, M. Shimada, T. Shioya, M. Tadano, T. Tahara, T. Takahashi, S. Takasaki, Y. Tanimoto, M. Tejima, K. Tsuchiya, T. Uchiyama, A. Ueda, K. Umemori, S. Yamamoto, Ma. Yoshida, M. Yoshimoto
    KEK, Ibaraki
 
  In KEK, we have two synchrotron light sources which were constructed in the early 1980s. One is the Photon Factory storage ring (PF-ring) and the other is the Photon Factory advanced ring (PF-AR). The PF-ring is usually operated at 2.5 GeV and sometimes ramped up to 3.0 GeV to provide photons with the energy from VUV to hard X-ray region. The PF-AR is mostly operated in a single-bunch mode of 6.5GeV to provide pulsed hard X-rays. Operational performances of them have been upgraded through several reinforcements. After the reconstruction of the straight section of the PF-ring in 2005, two short-period-gap undulators have been stably operated. They allow us to produce higher brilliant hard X-rays even at the energy of 2.5 GeV. In March 2008, the circular polarized undulator will be installed in the long straight section of 8.9 m. In the PF-AR, new tandem undulators have been operated since September 2006 to generate much stronger pulsed hard X-rays for the sub-ns resolved X-ray diffraction experiments. In this conference, we report present status of the PF-ring and the PF-AR.  
WEPC037 Preparations of BESSY for Top Up Operation 2067
 
  • P. Kuske, M. Abo-Bakr, W. Anders, T. Birke, K. B. Buerkmann-Gehrlein, M. Dirsat, O. Dressler, V. Duerr, F. Falkenstern, W. Gericke, R. Goergen, F. Hoffmann, T. Kamps, J. Kuszynski, I. Mueller, R. Mueller, K. Ott, J. Rahn, T. Schneegans, D. Schueler, T. Westphal, G. Wuestefeld
    BESSY GmbH, Berlin
  • D. Lipka
    DESY, Hamburg
 
  The synchrotron light source BESSY went into operation for users in 1998. BESSY was not designed initially to allow for Top Up operation, a mode where lost electrons are replaced after minutes while the beam shutters are open and users take data. Since 3 years the facility is improved in order to guarantee safe operation in this risky mode. The work culminated in a one week long Top Up test run at the beginning of this year. The efforts and achievements are described in detail: Improvements of the injector, the pulsed injection elements, the timing system, insertion devices, the additional safety interlocks, and the shielding of the ring.  
WEPC039 PLS Upgrade Plan 2070
 
  • T.-Y. Lee
    PAL, Pohang, Kyungbuk
 
  Pohang Light Source (PLS) has operated for 14 year successfully. To meet the request of the increasing user community, an upgrade plan of PLS is under consideration. The design goal is to achieve an emittance as low as 5 nm rad and to install as many insertion devices as possible. To minimize the necessary relocation of existing beamlines, the new lattice will still be a TBA. But, adopting combined function magnets, it is possible to achieve low emittance while the insertion straight is as long as 8.8 m where two insertion devices will be installed. The PLS upgrade plan and the lattice design will be presented in this paper.  
WEPC040 Commissioning of the SSRF Booster 2073
 
  • H. H. Li, Q. Gu, D. M. Li, L. G. Liu, D. Wang, Z. T. Zhao
    SINAP, Shanghai
 
  The SSRF Booster, designed to accelerate the electrons from 150MeV to 3.5GeV, is a FODO structure synchrotron with 180m circumference and 2Hz repetition rate. The commissioning of the SSRF booster from the LTB transfer line started on Sept. 30th evening, 2007, the first turns of beam in the booster was obtained in 20 hours. With about 60 hours effective commissioning effort, the electrons were accelerated to 3.5GeV on October 5th morning, 2007. And then the first 3.5GeV beam was extracted to BTS transfer line on October 30th, 2007. In this paper, the SSRF booster is introduced and its commissioning results are presented.  
WEPC042 Commissioning of the SSRF Storage Ring 2079
 
  • L. G. Liu
    SSRF, Shanghai
  • Z. M. Dai, B. C. Jiang, H. H. Li, D. Wang, W. Zhang, Z. T. Zhao
    SINAP, Shanghai
 
  The Shanghai Synchrotron Radiation Facility (SSRF) is a 3.5GeV synchrotron radiation light source under commissioning in Shanghai, China. The SSRF accelerator complex consists of a 150MeV linac, full energy booster and a 3.5GeV storage ring. The commissioning of the SSRF storage ring began on Dec. 21st evening, 2007, the first turn and 150 turns was observed in less than 12 hours with RF off and then the stored beam of 5 mA was achieved on Dec. 24th. On Jan. 3rd, 2008, the 100mA stored beam current were obtained in the machine for the first time. Since then, the storage ring has been brought close to the design parameters, and frequent operation with 100mA beam current has been down for making the vacuum chamber cleaning. In this paper, commissioning results of the machine is presented.  
WEPC043 Commissioning of 360 mA Top-up Operation at TLS 2082
 
  • Y.-C. Liu, H.-P. Chang, K.-K. Lin, Y. K. Lin, G.-H. Luo
    NSRRC, Hsinchu
 
  Taiwan light source started the 200 mA top-up operation in October, 2005, and subsequently, the stored top-up beam current was raised to 300 mA. Several machine issues were observed and solved during past two years. We study the possibility and ability of 360 mA top-up operation at Taiwan light source.  
WEPC044 Top-Up Safety Simulations for the Diamond Storage Ring 2085
 
  • I. P.S. Martin, C. P. Bailey, E. C. Longhi, R. P. Walker
    Diamond, Oxfordshire
  • R. Bartolini, I. P.S. Martin
    JAI, Oxford
 
  To ensure that it is not possible for a train of injected electron bunches to pass down an open beam-line during top-up operation at the Diamond Light Source, an extensive program of tracking studies has been performed. Various error scenarios have been investigated, with realistic magnetic field, trajectory, aperture and energy errors all taken into account. We describe the tracking methods used, scenarios considered and the interlocks required in order to maintain user safety during top-up operation.  
WEPC045 Alternative Lattice Settings for ALBA Storage Ring 2088
 
  • M. Munoz, G. Benedetti, D. Einfeld, Z. Martí
    ALBA, Bellaterra
 
  ALBA is a 3 GeV synchrotron light source under construction in Spain. The lattice for the standard operational mode is based in a DBA-like structure, with finite dispersion in the straight sections and extra space in the arcs. This solution provides small emittance with a large available space for insertion devices, RF and diagnostic components, and large dynamic aperture and energy acceptance. Other optic modes has been investigated, in order to facilitate the commissioning procedure or to provide different operating modes to the users: pure achromatic lattice, without dispersion in the straight section; achromatic arcs, where the dispersion is zero in the long straight; or a relaxed lattice, offering higher emittance. This paper review the performance of this alternative options, including the non-linear performance.  
WEPC046 Characterizing THz Coherent Synchrotron Radiation at the ANKA Storage Ring 2091
 
  • A.-S. Müller, I. Birkel, S. Casalbuoni, B. Gasharova, E. Huttel, Y.-L. Mathis, D. A. Moss, N. J. Smale, P. Wesolowski
    FZK, Karlsruhe
  • E. Bruendermann
    Ruhr-Universität Bochum, Bochum
  • T. Bueckle, M. Klein
    University of Karlsruhe, Karlsruhe
 
  In a synchrotron radiation source coherent infrared (IR) radiation is emitted when the bunch length is comparable to the wavelength of the emitted radiation. To generate coherent THz (far IR) radiation, the ANKA storage ring is operated regularly in a dedicated low-alpha optics. Different bunch lengths, corresponding to different spectral ranges of the THz spectrum and various electron beam energies can be offered, depending on user demand. The radiation emitted in the fringe field of a dipole magnet, the so-called edge radiation, is detected at the ANKA-IR beamline. This paper presents radiation properties like THz beam profiles and power measurements in the framework of characterising the coherent THz radiation to optimise the power, frequency and spatial output of the ANKA storage ring. First experiments showed a time averaged power of up to 0.2 mW suggesting a THz pulse peak power of at least several tens of mW.  
WEPC047 Modeling the Shape of Coherent THz Pulses Emitted by Short Bunches in an Electron Storage Ring 2094
 
  • A.-S. Müller, S. Casalbuoni, M. Fitterer, E. Huttel, Y.-L. Mathis
    FZK, Karlsruhe
  • M. T. Schmelling
    MPI-K, Heidelberg
 
  A sufficiently short electron bunch will emit coherent synchrotron radiation of wavelengths equal to or larger than the bunch length. The shape of the emitted THz pulse depends amongst other things on the original shape and length of the bunch’s charge distribution. A Michelson interferogram of the THz signal therefore contains information on the generating bunch. However, systematic effects make a bunch length measurement based on that technique non-trivial. In order to understand the variables involved, an analytical model of the pulse generation is needed. In this paper, a derivation of the THz pulse shape form first principles with special emphasis in the time domain is presented. The impact of charge distribution parameters on the Michelson interferogram is discussed.  
WEPC048 Experimental Characterization of the Insertion Device Effects on Beam Dynamics at SOLEIL 2097
 
  • P. Brunelle, C. Benabderrahmane, F. Briquez, O. V. Chubar, O. Marcouillé, F. Marteau, A. Nadji, L. S. Nadolski
    SOLEIL, Gif-sur-Yvette
 
  SOLEIL, the French 2.75 GeV third generation light source, has been delivering photons to beam lines in routine operation since January 2007. The storage ring is presently equipped with eleven insertion devices: 3 in-vacuum 20mm period undulators (U20), 1 Apple-II type 52mm period undulator (HU52), 3 Apple-II type 80mm period undulators (HU80), 3 electromagnetic 256mm period undulators (HU256) and 1 electromagnetic 640mm period 10m long undulator (HU640). Commissioning of insertion devices consists of characterizing all the effects on beam dynamics in terms of focussing, injection efficiency, beam lifetime and sensitivity to working point, and also in optimizing feedforward tables in order to compensate for closed orbit distortions during field variations (this last point is detailed in other papers). We will focus here on the significant effects observed with some undulators. Measurements, using electron beam, of the transverse variation of field integrals, were helpful to understand bad effects impacting the daily operation. The introduction of real magnetic characteristics in the lattice model is in progress in order to further optimize the working point.  
WEPC049 Novel Schemes for Simultaneously Satisfying High Flux and TOF Experiments in a Synchrotron Light Source 2100
 
  • D. Robin, G. J. Portmann, F. Sannibale, W. Wan
    LBNL, Berkeley, California
 
  Storage Ring Light Sources have proven to be extremeley succesful tools for probing matter. One of their most desirable features is that they are able to supply synchrotron radiation to multiple experiments simultaneously. However two classes of applications are difficult to satisfy simultaneously - high flux applications and time of flight applications. High flux experiments require filling as many buckets as possible while time of flight experiments require long gaps between bunches. In this paper we examine schemes for operating the synchrotron light source for for both communities simultaneously.  
WEPC050 Future Plans for the Advanced Light Source 2103
 
  • D. Robin, H. Nishimura, G. J. Portmann, F. Sannibale, C. Steier
    LBNL, Berkeley, California
 
  The Advanced Light Source is now in its 15th year of operation. The facility has managed to continue to improve through continual upgrades to both the capabilities and capacities. Studies have shown that there is still plenty of room for improvements. Here we present plans to provide sustantial relevant improvements with modest cost.  
WEPC051 Upgrade Plans for the ESRF Storage Ring Lattice 2106
 
  • A. Ropert, L. Farvacque
    ESRF, Grenoble
 
  The lattice of the ESRF storage ring is of the Double Bend Achromat type with 32 straight sections of alternating high and low horizontal beta values, currently providing 5 m of available space for insertion devices. As part of the ESRF Upgrade Programme, it is proposed to increase the length of selected insertion device straight sections from 5 to 7 m. In this paper, we will describe the different steps towards longer straight sections: implementation of a new lattice in which the straight section quadrupole triplets are replaced by doublets, design of modified straight sections with replacing the long quadrupoles by shorter ones and moving the adjacent sextupoles, experiments carried out to simulate the lattice symmetry breaking induced by a 7 m long straight section.  
WEPC052 Achieving Stability Requirements for Nanoprobe and Long Beam Lines at NSLS II. A Comprehensive Study 2109
 
  • N. Simos, L. Berman, A. J. Broadbent, K. Evans-Lutterodt, M. Fallier, J. Hill
    BNL, Upton, Long Island, New York
 
  Driven by beam stability requirements at the NSLS II synchrotron a comprehensive study has been launched seeking to provide assurances that nanometer level stability at critical x-ray beam-lines is achievable, given the vibration environment at the selected site. Through this effort which represents the integration of an array of field measurements and a state-of-the-art model of wave propagation, the stability of special NSLS II beam-lines that push the envelope of beam size is quantified. In particular, the effects of ground vibration at the NSLS II site are studied both deterministically and stochastically to account for the stochastic nature of the disturbances arriving at the site and interact with the ring and the experimental lines. Validated numerical models are utilized in an effort to guide the design of sensitive lines. The objective is to both minimize vibration amplification as well establish a relative stability envelope between the beam extraction and imaging locations of the sensitive NSLS II beam-lines.  
WEPC055 General Status of SESAME 2115
 
  • H. Tarawneh, T. H. Abu-Hanieh, A. Al-Adwan, M. A. Al-najdawi, A. Amro, M. Attal, D. S. Foudeh, A. Kaftoosian, T. A. Khan, F. Makahleh, S. A. Matalgah, A. M. Mosa Hamad, M. M. Shehab, S. Varnasseri
    SESAME, Amman
  • A. Nadji
    SOLEIL, Gif-sur-Yvette
 
  An update of the status of SESAME is presented. SESAME is a third generation light source facility under construction in Allan, Jordan. The storage ring electron beam energy is 2.5 GeV, the beam emittance is 26 nm.rad and 12 straight sections are available for Insertion Devices. The injector consists of a 22.5 MeV microtron and 800 MeV booster synchrotron, with a repetition rate of 1 Hz. The SESAME building has been handed over on Dec. 2007 and this note focuses on the upgrade and installation plans for the SESAME injector system during the 2008. In the meantime, preparations of technical specifications for most of the storage ring subsystems are in progress. In this note the conceptual design of the storage ring’s bending magnet, pulsed magnets and their power supplies, RF system, shielding wall and the cooling system are presented. The tendering of these components is expected by mid 2008.  
WEPC056 Emittance Reduction by Longitudinally Varying Dipole Field 2118
 
  • K. Tsumaki
    JASRI/SPring-8, Hyogo-ken
 
  One of the most important matters for synchrotron radiation source is decreasing the beam emittance to increase the brightness. The electron beam emittance is almost determined by electron energy and the average H-function. For further improvement of the emittance, we can change the damping partition number by radially varying dipole field and can reduce the emittance. However, this method is not effective for a small emittance lattice due to its small dispersion function. We have studied the emittance reduction by longitudinally varying magnetic field in a bending magnet. The radius of curvature is assumed to vary with the function of nth degree (n=1,2,3,4). The emittance is calculated numerically for minimum emittance and achromat configuration. In this paper, we describe the details of calculated results and discuss the effectiveness of the method.  
WEPC057 Preparation for Top-up Operation at Diamond 2121
 
  • R. P. Walker, P. T. Bonner, F. Burge, Y. S. Chernousko, C. Christou, J. A. Dobbing, M. T. Heron, V. C. Kempson, I. P.S. Martin, G. Rehm, R. J. Rushton, S. J. Singleton, M. C. Wilson
    Diamond, Oxfordshire
  • R. Bartolini
    JAI, Oxford
 
  We report on progress towards top-up operation of Diamond. We describe the extensive safety assessment that has carried out, including the measurements and simulations to assess the potential radiation doses in the case of poor injection efficiency or a top-up "accident", and the various levels of safety measures - procedures, software limits and personnel safety system interlocks - that have been implemented. We describe the top-up control algorithm, the technique used to maintain a given arbitrary filling pattern and the performance in practise. The work carried out to reduce the effect of the injection kickers on the stored beam is described, and the effect of the residual disturbance on user operation is discussed. The modifications to the timing system to provide hardware and software gating signals, and experience with the use of these, are also described.  
WEPC058 Operational Performance of the Taiwan Light Source 2124
 
  • Ch. Wang, H.-P. Chang, J.-C. Chang, J.-R. Chen, F.-T. Chung, F. Z. Hsiao, G.-Y. Hsiung, K. T. Hsu, C. K. Kuan, C.-C. Kuo, K. S. Liang, K.-K. Lin, Y.-H. Lin, K.-B. Liu, Y.-C. Liu, G.-H. Luo, R. J. Sheu, D.-J. Wang, M.-S. Yeh
    NSRRC, Hsinchu
 
  The Taiwan light source (TLS) is a 1.5 GeV third generation light source at the National Synchrotron Radiation Research Center (NSRRC) in Taiwan. It has been routinely operated since its opening in 1993. Several major machine upgrade projects have been undertaken and successfully completed in last 5 years, including implementing of digital bunch-by-bunch feedbacks, superconducting accelerating RF cavity, top-up mode injection, etc. The light source now moves forward to its era of mature operation. It delivers more than 5000 hours user time in 2007 with an up-time of more than 98% and a mean time between failures better than 80 hours. Here, we review its annual operational performance with detailed statistics and discuss the possible improvement directions of machine performance.  
WEPC059 Lattice Design of PEP-X as a Light Source Machineat SLAC 2127
 
  • M.-H. Wang, Y. Cai, R. O. Hettel, Y. Nosochkov
    SLAC, Menlo Park, California
 
  The lattice study for converting the High Energy Ring (HER) of PEP-II into a light source machine with minimal modifications is reported. In this design, a higher phase advance is used in the HER FODO lattice which reduces the emittance to 5 nm at 4.5 GeV without a damping wiggler, and to 0.4 nm with 116 m damping wiggler included in two straight sections out of six. We also study the possibility of replacing one of the six FODO arcs with eight DBA cells to provide additional dispersion free straight sections for the experimental beam lines. The DBA cells will reuse the existing HER and LER (Low Energy Ring) magnets for a minimal cost of the modification. The main parameters and beam dynamics properties of these lattices are presented.  
WEPC062 The SRS at Daresbury Laboratory: a Eulogy to the World's First Dedicated High-energy Synchrotron Radiation Source 2133
 
  • D. J. Holder, N. G. Wyles
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
  • P. D. Quinn
    STFC/DL/SRD, Daresbury, Warrington, Cheshire
 
  2008 marks the last year of operation of the Synchrotron Radiation Source (SRS) at Daresbury Laboratory, which circulated its first 2 GeV beam in 1981. This paper provides a look back at the significant milestones passed on the way and records the achievements of many of those involved in its thirty-year programme. Many of the technologies and techniques developed at the SRS at Daresbury are now standard practice at synchrotron light sources around the world; and there are few light source laboratories that do not benefit from the skills of someone who spent their formative years working on the SRS. The provision of synchrotron light for the UK is now being met by DIAMOND, whose success is a testament to the skills of its designers, honed as they were on the SRS at Daresbury. These skills are now being used to design the UK’s next-generation light source, to provide the pulsed and longer-wavelength light that DIAMOND cannot.  
WEPC063 The Concept of Hefei Advanced Light Source (HALS) 2136
 
  • L. Wang, G. Feng, W. Li, L. Liu, C.-F. Wu, H. Xu, S. C. Zhang
    USTC/NSRL, Hefei, Anhui
 
  The Hefei Light Source is a dedicated VUV and soft X-ray light source. The layout of magnet lattice limits the achievalbe beam emittance and available straight section for insertion device. To enhance competitiveness of National Synchrotron Radiation Laboratory in synchrotron radiation application research region, a concept of new dedicated VUV and soft X-ray synchrotron radiation light source was put forward, which is named Hefei Advanced Light Source. Comparing the advantages, difficulties and performance/foundation of energy recovery linac, linac-based free electron laser and storage ring based light source, the scheme of a 1.5GeV storage ring with very low beam emittance was adopted as the baseline design. At same time, a low emittance 1.5 GeV linac would be as its full-energy injector, which can provide ultra-short radiation pulse. The HALS would provide more brilliant and transverse coherent synchrotron radiation in the VUV and soft X-ray range to various users.  
WEPC064 The Possibility of Conversion of Hefei Light Source Storage Ring Into a Dedicated THz Radiation Source 2139
 
  • L. Wang, G. Feng, W. Li, L. Liu, C.-F. Wu, H. Xu, S. C. Zhang
    USTC/NSRL, Hefei, Anhui
 
  In the future of National Synchrotron Radiation Laboratory, a new advanced VUV and soft X-ray light source would be contructed and provide synchrotron radiation with high brilliance and transverse coherence. At that time, the current HLS storage ring would be replaced by the new one. Instead of retire of the old ring, there is another case, that is upgrading current low energy storage ring as a dedicated THz light source. In this paper, the possibility of lattice upgrading were evaluated. And its performance was estimated according to exist theoretical model.  
WEPC065 The Lattice Design of Hefei Advanced Light Source (HALS) Storage Ring 2142
 
  • L. Wang, G. Feng, W. Li, L. Liu, C.-F. Wu, H. Xu, S. C. Zhang
    USTC/NSRL, Hefei, Anhui
 
  The purpose of Hefei Advanced Light Source is to provide high brilliant and coherent synchrotron radiation in the VUV and soft X-ray range to synchrotron radiation users. To enhance high brilliance and transverse coherent, very low beam emittance is required. The design goal of beam emittance is lower than 0.2 nmrad, whose synchrotron radiation is fully transverse coherent beyond the 2.5nm. Considering achievable undulator radiation spectrum and energy dependence of emittance, the energy of storage ring is set as 1.5GeV. Limiting the circumference of storage ring, the more dipole and strong focusing are needed for lowering emittance. On the other side, strong chromatic sextupoles are needed to compensate large natural chromaticity. The storage ring became strong nonlinear. The linear optics and nonlinear dynamics of HALS storage ring were introduced in this paper.  
WEPC083 Status of the SSRF Booster 2189
 
  • D. M. Li, H. W. Du, H. H. Li, Z. T. Zhao
    SINAP, Shanghai
 
  The SSRF booster is a 2Hz electron synchrotron. It accelerates electrons, coming from a 150 MeV linac, to a final energy of 3.5 GeV in 250ms and extracts them into the storage ring. The booster lattice is based on a FODO structure with missing dipoles, forming 28 cells with 8 straight sections of a 2-folder symmetry and 180m circumference. The SSRF injector (Include 150 MeV linac, booster and two transport lines) was designed for Top-Up injection, which has single-bunch and multi-bunch beam modes. After 9 months installation and pre-commissioning, the SSRF booster commissioning started on September 30, 2007. The first 3.5GeV beam was obtained On Oct.5, and the first extracted beam was obtained on Oct.29, 2007. The booster serves as a injector for storage ring from Dec. 21, 2007. In this paper, the design, installation and commissioning of the SSRF booster and transport lines are described.