Keyword: booster
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MOPEA002 1.5 GeV Low Energy Mode for the Australian Synchrotron storage-ring, extraction, synchrotron, injection 61
 
  • R. Clarken, M.J. Boland, Y.E. Tan
    ASCo, Clayton, Victoria, Australia
  • J.S. Hughes, K.P. Wootton
    The University of Melbourne, Melbourne, Australia
  
  The Australian Synchrotron injection system and storage ring have been retuned to 1.5 GeV for use in special operations and machine development modes. The systems were designed for 3 GeV user operations but for certain research a lower energy of 1.5 GeV is advantageous. A description of how the new low energy mode was achieved is given, including extraction on the fly from the booster synchrotron and scaling of the storage ring lattice.  
 
MOPEA003 Status and Very First Commissioning of the ASTRID2 Synchrotron Light Source vacuum, quadrupole, lattice, cavity 64
 
  • S.P. Møller, N. Hertel, J.S. Nielsen
    ISA, Aarhus, Denmark
  
  ASTRID2 is the new 10 nm UV and soft x-ray light source at Aarhus University. It will replace the ageing source ASTRID, which will be used as the full-energy (580 MeV) booster for ASTRID2. An upgrade of the beamlines at ASTRID are presentlytaking place before being transferred to ASTRID2 until the end of 2013. In addition new beamlines and insertion devices are being procured. Presently, ASTRID2 commissioning is alternating with ASTRID operation to continue during 2013. Status in spring 2013 includes operation of most sub-systems resulting in top-up mode operation to 150 mA. The lattice have been qualifies although a re-alignment is planned. The poster will present experiences from the first commissioning and give the status of the project.  
 
MOPEA009 ESRF Operation and Upgrade Status undulator, storage-ring, emittance, permanent-magnet 82
 
  • J.-L. Revol, J.C. Biasci, J-F. B. Bouteille, F. Ewald, L. Farvacque, A. Franchi, G. Gautier, L. Goirand, M. Hahn, L. Hardy, J. Jacob, J.M. Koch, M.L. Langlois, G. Lebec, J.M. Mercier, T.P. Perron, E. Plouviez, P. Raimondi, K.B. Scheidt, V. Serrière
    ESRF, Grenoble, France
  
  The European Synchrotron Radiation Facility (ESRF) is presently midway through the Upgrade Programme Phase I (2009-2015), which concerns its infrastructure, beamlines and X-ray source. This paper reports on the present operation performance of the source, highlighting the more recent developments. In this context, 8 insertion device straight sections have been lengthened from five to six metres; two of them operating with canted undulators. The lattice of one cell has been modified for a further increase to 7 metres allowing the test of a mini beta optics and latter the distribution of cavities. A second cryogenic permanent magnet undulator has been completed, which gives a factor of more than 2 in flux at high energy. The booster klystron-based radio frequency transmitter has been replaced by high power solid state amplifiers. Out of three prototypes of HOM damped cavities working at room temperature which have been received and tested, one has been successfully commissioned with beam. Subsequent to the upgrade of the beam position monitor system, a new orbit feedback has substantially reduced the orbit distortion induced by ID gap motions.  
 
MOPEA023 Lattice Design for the ILSF Booster Synchrotron sextupole, emittance, damping, quadrupole 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.  
 
MOPEA033 Status of Upgrade Project of the 1.2 GeV Booster Synchrotron at Tohoku University quadrupole, alignment, dipole, synchrotron 151
 
  • F. Hinode, H. Hama, S. Kashiwagi, T. Muto, I. Nagasawa, K. Nanbu, Y. Shibasaki, K. Takahashi
    Tohoku University, Research Center for Electron Photon Science, Sendai, Japan
  
  The 1.2 GeV electron synchrotron has been operated for nuclear physics experiment since 1997 in Electron Light Science Centre, Tohoku University, in which the high energy gamma-rays via bremsstrahlung has been supplied for hadron physics. After the Great East Japan Earthquake in March 2011, recovery and reconstruction work of the accelerator complex is in progress vigorously. While the compact 90 MeV linac is newly constructed as the dedicated injector for the synchrotron, old power supplies of synchrotron magnets and also pulsed magnets for beam injection are going to be replaced in the synchrotron. Furthermore replacements of some quadrupole magnets to the combined function magnets with sextupole component are also on going. Modifying the ring optics so as to introduce the horizontal dispersion on the combined magnet position, this replacement work will make it possible to correct the chromaticity. At the present, power supplies and combined magnets have been manufactured and those installations will be completed soon. We will present the current status of upgrade project of the booster synchrotron.  
 
MOPEA053 Status of NSLS-II Booster dipole, controls, vacuum, septum 196
 
  • S.M. Gurov, A.I. Erokhin, S.E. Karnaev, V.A. Kiselev, E.B. Levichev, A. Polyansky, A.M. Semenov, S.V. Shiyankov, S.V. Sinyatkin, V.V. Smaluk
    BINP SB RAS, Novosibirsk, Russia
  • H.-C. Hseuh, T.V. Shaftan
    BNL, Upton, Long Island, New York, USA
  
  The National Synchrotron Light Source II is a third generation light source under construction at Brookhaven National Laboratory. The project includes a highly optimized 3 GeV electron storage ring, linac pre-injector and full-energy injector-synchrotron. Budker Institute of Nuclear Physics build booster for NSLS-II. The booster should accelerate the electron beam continuously and reliably from a minimum 170 MeV injection energy to a maximum energy of 3.15 GeV and average beam current of 20 mA. The booster shall be capable of multi-bunch and single bunch operation. Pre-comissioning test results of booster components and system are reviewed.  
 
MOPEA069 Tuning of the Injector System to Match Possible Lattice Upgrades at Diamond Light Source linac, lattice, injection, storage-ring 243
 
  • C. Christou, R. Bartolini, J. Kay
    Diamond, Oxfordshire, United Kingdom
  • R. Bartolini
    JAI, Oxford, United Kingdom
  
  Studies of novel lattice upgrades for Diamond Light Source to achieve an increase in the number of insertion devices and/or a lower natural emittance are underway (as reported elsewhere at this conference). Such upgrades if carried out progressively would result in successive reductions in storage ring circumference. To maintain synchronous injection then requires the injector system to operate at various frequencies to match these changes. This paper describes the tests carried out with beam, to prove that the injector system of Linac and full energy Booster can be tuned over an extended frequency range.  
 
MOPEA072 Recent Improvement of the APS Booster Synchrotron lattice, emittance, injection, synchrotron 252
 
  • C. Yao, R. Laird, V. Sajaev, N. Sereno, H. Shang, J. Wang, S. Xu
    ANL, Argonne, USA
  
  Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-ACO2-O6CH11357.
The APS booster injector is a 7-GeV electron synchrotron. Several improvements have been implemented in the booster area, including the development of the 92-nm low emittance lattice, upgrading the ramp current readback ADC, and development of a new firing card for the main ramp supplies. Recently we have completed the commissioning of the low emittance lattice and it is now APS operational lattice. Combined with improvement in the optimization in the storage ring lattice and injection, we have achieved close to 100% storage ring injection efficiency. This report presents the improvements and measured beam parameters and the measured performance of the ramp control. 		 
 
MOPEA080 Status of the NSLS-II Injector linac, injection, storage-ring, kicker 273
 
  • T.V. Shaftan, A. Blednykh, E.B. Blum, W.X. Cheng, J. Choi, L.R. Dalesio, M.A. Davidsaver, J.H. De Long, R.P. Fliller, G. Ganetis, F. Gao, A. Goel, W. Guo, K. Ha, R. Heese, H.-C. Hseuh, M.P. Johanson, B.N. Kosciuk, S. Kowalski, S.L. Kramer, Y. Li, W. Louie, S. Ozaki, D. Padrazo, J. Rose, S. Seletskiy, S.K. Sharma, G. Shen, O. Singh, V.V. Smaluk, Y. Tian, K. Vetter, W.H. Wahl, G.M. Wang, F.J. Willeke, X. Yang, L.-H. Yu, P. Zuhoski
    BNL, Upton, Long Island, New York, USA
  
  We discuss the current status and plans for developing the NSLS-II injector. The latter consists of a 200 MeV linac, a 3-GeV booster, transport lines and the storage ring injection straight section. The system design and installation are complete. Last year we concluded 200-MeV linac commissioning and are planning to commission the 3 GeV booster during summer of 2013.  
 
MOPME052 Beam Instrumentation System Optimization for Top-up Operation in SSRF storage-ring, pick-up, injection, instrumentation 589
 
  • Y.B. Yan, Y.B. Leng, L.Y. Yu, W.M. Zhou
    SINAP, Shanghai, People's Republic of China
  
  In order to offer higher average brightness and more stable photon beam, top-up injection mode is scheduled for daily operation in SSRF. Several critical beam parameters, such as fill pattern, average current, beam lifetime and transfer efficiency, need to be measured precisely and reliably, and few interlock logics need to be added into machine protection system with top-up mode. Hardware and software optimizations of beam instrumentation for this purpose will be introduced in this paper.  
 
MOPME064 SLM and Flags for Booster of NSLS-II vacuum, radiation, synchrotron, synchrotron-radiation 622
 
  • O.I. Meshkov, V. Smalyuk
    BINP SB RAS, Novosibirsk, Russia
  • V.L. Dorokhov
    BINP, Novosibirsk, Russia
  
  Set of diagnostics of booster of NSLS-II includes 6 fluorescent screens (flags) and 2 synchrotron light monitors (SLM). The flags will be applied during booster commissioning for closing of the beam turn. They are also a useful tool in case of malfunction elimination. SLM will be used both for booster comissioning and for operation. The details of calibration and design of the devices are discussed.  
 
MOPWA019 Digital Power Supply Controller Development Based on FPGA power-supply, controls, synchrotron, synchrotron-radiation 702
 
  • R.N. Xu, C.L. Guo, D.M. Li, R. Li, S. Tan, W.F. Wu
    SINAP, Shanghai, People's Republic of China
  
  A digital power supply controller of SSRF (Shanghai Synchrotron Radiation Facility) adops advanced DSP, FPGA and precision ADC as core unit and data acquisition unit. The controller, which is embedded in the power supply case, is composed of two cards, DSP card and ADC card. The controller can communicate with IOC by optical fiber via the Ethernet, Manchester or RS-232 port. The parameters of adjusting power supply can be easily changed to achieve high stability and repeatability. The long-term stability is better than 20ppm. The resolution of current is better than 5ppm. As a replacement of imported PSI controller, the controller is mainly used in middle power supplies in SSRF, and it could accord with all the technical requirements of the facility.  
 
MOPWA025 2Hz Ramping Mode Dipole Power Supply for Testing the NSLSII Booster Dipole Magnets power-supply, dipole, controls, feedback 714
 
  • A.I. Erokhin, A.V. Bulatov, K. Gorchakov, S.M. Gurov, V.V. Kolmogorov, A.A. Kremnev, D.N. Pureskin, D.V. Senkov, R.V. Vakhrushev
    BINP SB RAS, Novosibirsk, Russia
  
  Budker Institute has designed and delivered Booster for NSLSII project including vacuum system, magnet system, diagnostics and power supplies. Dipole power supplies were directly delivered to BNL by sub-contractor (Danfysik, Denmark). To test dipole magnets on factory side, at BINP, it was decided to design and construct a high current ramping mode power supply. The designed power supply can operate with the reactive output power up to 150kVA and output current up to 900A at 2Hz ramping mode. The absolute accuracy achieved is better than 100ppm for the injection and extraction flats and better than 500ppm for the ramps.  
 
MOPWA026 Fast Magnetic Kickers for the NSLS-II Booster-Synchrotron: Design and Test Results kicker, extraction, injection, vacuum 717
 
  • D.A. Shvedov, O. Anchugov, V.A. Kiselev, A.A. Korepanov, S.V. Sinyatkin
    BINP SB RAS, Novosibirsk, Russia
  
  For the purpose of realization of single-turn injection and extraction from the NSLS-II booster synchrotron, BINP members created nanosecond non-vacuum ferrite kickers with fronts of pulsed magnetic field of ~ 200 ns, flat-top duration of 300 nsec and its instability of 0.2/1% at most. This paper describes the design of unique kicker magnets with ceramic vacuum chambers with deposited longitudinal strips of titanium nitride (TiN) inside. The paper also presents the results of bench tests of the kickers: oscillograms of current pulse in bus bars, the shape of the pulsed magnetic field, and transverse distribution of the longitudinal field integral in the kicker aperture.  
 
MOPWA027 Pulse Power Supplies for Kicker Magnets of NSLS-2 Booster Ring injection, kicker, extraction, power-supply 720
 
  • A.A. Korepanov, A. Akimov, A.A. Pachkov, A. Panov
    BINP SB RAS, Novosibirsk, Russia
  
  A set of identical ferrite kicker modules is utilized for the injection and extraction of the NSLS-2 booster ring. The pulse power supplies of these modules are based on the PFN-thyratron design. The pulse current amplitude of up to 4 kA at 300 ns flat top duration and PFN charging voltage of up to 23 kV were achieved on the extraction pulsers. The pulse to pulse repeatability of the output current waveform was measured and made up to 0.05% (σ) at nominal current for the extraction pulsers. The injection pulsers have a specification on the reverse current overshoot to be less than 0.5% of the amplitude. To fulfill this requirement a single turn saturated choke in the thyratron circuit was used. The design and the test results of the power supplies on NSLS-2 site are presented in the paper.  
 
MOPWA028 Power System for Quadrupole Magnets of NSLS-II 3 GeV Booster controls, quadrupole, extraction, injection 723
 
  • D.V. Senkov, A.I. Erokhin, V.V. Kolmogorov, A.S. Medvedko, S.I. Potapov, D.N. Pureskin
    BINP SB RAS, Novosibirsk, Russia
  
  Power system for quadrupole magnets of NSLS-II 3 GeV booster is designed, manufactured and tested in BINP, Russia. The power system consists of 2 parts. The first part is a charging source with a capacitance bank at output. And the second part consists of 3 current sources powered by a capacitance bank. The charging source output voltage is up to 180 V, peak power is 40 kW and average power is 20 kW. Capacitance bank has a 120 kVA storage energy. The second part contains 3 independent current sources with up to 180 A output current each. This report considers the details of current sources design, their parameters and results of inspection test in BINP. Finally, the first results of injection and extraction section commissioning at BNL site are reported.  
 
MOPWA029 Pulse Generators for Septums and Bumps of Injection and Extraction Systems of NSLS-II Booster septum, injection, extraction, controls 726
 
  • D.V. Senkov, A.M. Batrakov, A.D. Chernyakin, V.A. Kiselev, A.V. Pavlenko, A.N. Zhuravlev
    BINP SB RAS, Novosibirsk, Russia
  
  Pulse generators for injection and extraction systems of NSLS-II 3 GeV booster are designed, manufactured and tested in BINP, Russia and installed and tested at BNL site. This report considers the details of bump, injection septum and extraction septum pulse generators design, their parameters and results of inspection test in BINP. The design and electronics features of control system of pulse generators are presented. Finally, the first results of injection and extraction section commissioning at BNL site are reported.  
 
MOPWA035 Beam Loss Studies for the CERN PS Booster using FLUKA injection, beam-losses, multipole, extraction 744
 
  • S. Damjanovic, B. Dehning, B. Mikulec, M. Sapinski
    CERN, Geneva, Switzerland
  
  In view of future upgrade plans, the beam loss monitor (BLM) coverage of the PS Booster (PSB) rings was reviewed. The response of two types of monitors, LHC-IC and LHC-LIC, has been studied with FLUKA at LINAC4 injection and PSB extraction energies. The goal of this study was to find out whether the current beam loss monitor coverage of two monitors at a certain location per PSB section was adapted to potential beam losses associated with a future Linac4 injection. The outcome of this study was a proposal to double the number of beam loss monitors in the PSB section by using a combination of horizontally oriented LHC-IC and LHC-LIC type monitors.  
 
MOPWA042 The Leakage Current Induced by Stray Capacitance in the Pulse Magnet System kicker, impedance, high-voltage, injection 762
 
  • C.S. Chen, C.K. Chan, K.H. Hsu, Y.-H. Liu, C.S. Yang
    NSRRC, Hsinchu, Taiwan
  
  A huge amount of current must be provided during the nominal operation of the pulse magnet system in TPS (Taiwan Photon Source). It comes with all kinds of electromagnetic noises, including radiated and conducted EMI (electromagnetic interferences). The primary object of this article is to clarify the paths of induced EMI, especially by means of capacitance induction. Furthermore, some geometrical suggestions which had been tested are listed in this paper as the guidelines of the pulse magnet design. According to the measurement, proper distance and surface area lead to sufficient insulation and reduce the leakage current under the expected value.  
 
MOPWA043 The HV Withstands Test for In Vacuum Booster Kicker kicker, vacuum, injection, extraction 765
 
  • Y.-H. Liu, C.K. Chan, C.S. Chen, H.H. Chen, J.-R. Chen, K.H. Hsu, H.P. Hsueh, Y.T. Huang, C.S. Yang
    NSRRC, Hsinchu, Taiwan
  
  The maximum driving voltage of TPS booster extraction kicker is close to 30 kV, the HV insulation should be carefully noticed. A DC withstand voltage tester MUSASHI 3802 (Model: IP-701G) is used to test the DC breakdown voltage, which the maximum driving voltage is 37 kV. The 10 mm gap between coil and ferrite is designed in order to increase HV break down voltage. The safety breakdown distance between HV coil and grounding plate was tested in air. Different insulation material with different thickness was tested the breakdown voltage. Thicker than 10 mm ceramic plate could effectively avoid the breakdown occurred with 37 kV DC charging. Thus HV withstand voltage will be higher in vacuum chamber and the insulation with HV will not be the problem.  
 
MOPWA044 TLS Booster Measurement and Observation by New BPM Electronics synchrotron, quadrupole, extraction, kicker 768
 
  • P.C. Chiu, J. Chen, Y.-S. Cheng, K.T. Hsu, S.Y. Hsu, K.H. Hu, C.H. Kuo
    NSRRC, Hsinchu, Taiwan
  
  Taiwan Light Source (TLS) is a 1.5 GeV synchrotron based light source and its booster synchrotron was delivered in 1992. Due to the new project Taiwan Photon Source proceeded at the same site, some up-to-date device are available now before TPS civil construction complete and temporarily adapted for TLS booster to improve its operations. The major parameters of the TLS booster synchrotron are measured. It also provides a chance to experience for the TPS project booster diagnostic.  
 
MOPWA045 The Pulsed Power Supply System for TPS Project injection, kicker, power-supply, storage-ring 771
 
  • C.-S. Fann, C.L. Chen, K.T. Hsu, S.Y. Hsu, A.P. Lee, K.-K. Lin, K.L. Tsai
    NSRRC, Hsinchu, Taiwan
  
  The pulsed power supply system for TPS project consists of three types of pulser for booster injection/extraction and storage ring injection. Categorizing by the delivered peak current, pulse shape base-width, they are for: 1) booster kicker: 500 A, square, 1 μs; 2) storage ring kicker: 5 kA, half-sine, 5 μs; 3) transfer line septum: 10 kA, half-sine, 300 μs; respectively. All together, there are 10 units constructed for the associated pulsed magnets. In this report, the test results of the pulsed power supplies will be summarized and the measured results of their performance are presented.  
 
MOPWA048 The Cable Engineering Project for the TPS Power Supply power-supply, storage-ring, dipole, sextupole 780
 
  • C.-Y. Liu, D.-G. Huang, K.-B. Liu, B.S. Wang
    NSRRC, Hsinchu, Taiwan
  
  The civil engineering of Taiwan Photon Source will soon be completed. The engineering of the power supply cabling should be done in advance of the schedule for the completion of the civil engineering. Using software (SolidWorks) to build a 3-D model, we obtain detailed cabling information because the model is made to scale 1 to 1. As all components are built into the model of the TPS accelerator, we can build accurately a model of the power supply cabling. For example, we can estimate every length and the total cable length for purchase and budget control. We can evaluate the conditions for every power cable to lay the cable tray from the power supply to the magnets, so we can lay every cable to follow the sequence in the cable tray. We thereby convert the drawing of the two-dimensional construction graph when we design the finished three-dimensional cabling model. The excellent and precise results are proved in this paper.  
 
MOPWA061 A New Tool for Longitudinal Tomography in Fermilab's Main Injector and Recycler Rings controls, injection, emittance, space-charge 816
 
  • N.J. Evans, S.E. Kopp
    The University of Texas at Austin, Austin, Texas, USA
  • P. Adamson, D.J. Scott
    Fermilab, Batavia, USA
  
  Funding: U.S Department of Energy
We are developing software to compute tomographic reconstructions of longitudinal phase space distributions in the Fermi National Accelerator Laboratory Main Injector and Recycler rings using data from existing resistive wall current monitors to diagnose beam quality at injection and provide input distributions for simulation of losses. Building on the algorithm developed by *S. Hancock et al. at CERN the software is able to process a full synchrotron period of a Booster batch of 81 bunches with 18.94 ns spacing and a sampling rate of 2.5 GHz, in < 30 sec, or every ~270 injections. Processing an entire injection opens up the possibility of investigating coupled bunch instabilities via tomography. To speed reconstruction for use on a full injection, phase space maps are created once for a given set of parameters and saved for injections with similar machine settings. We present an overview of the system and studies done on the effect of small errors present including: random noise, mismatch between sampling rate and machine period, errors in locating bunch centers, and trigger jitter.
*Tomographic Measurements of Longitudinal Phase Space Density; 1998 ed. - Hancock, S et al - CERN-PS-98-030-RF 		 
 
MOPWO077 Design of the Proposed Low Energy Ion Collider Ring at Jefferson Lab ion, collider, electron, interaction-region 1058
 
  • E.W. Nissen, F. Lin, V.S. Morozov, Y. Zhang
    JLAB, Newport News, Virginia, USA
  
  Funding: Supported by the U.S. Department of Energy, Office of Nuclear Physics, under Contract No. DE-AC05-06OR23177 and DE-AC02-06CH11357.
The polarized Medium energy Electron-Ion Collider (MEIC) envisioned at Jefferson Lab will cover a range of center-of-mass energies up to 65 GeV. The present MEIC design could also allow the accommodation of low energy electron-ion collisions (LEIC) for additional science reach. This paper presents the first design of the low energy ion collider ring which is converted from the large ion booster of MEIC. It can reach up to 25 GeV energy for protons and equivalent ion energies of the same magnetic rigidity. An interaction region and an electron cooler designed for MEIC are integrated into the low energy collider ring, in addition to other required new elements including crab cavities and ion spin rotators, for later reuse in MEIC itself. A pair of vertical chicanes which brings the low energy ion beams to the plane of the electron ring and back to the low energy ion ring are also part of the design. 		 
 
MOPWO083 LEIC - A Polarized Low Energy Electron-ion Collider at Jefferson Lab ion, electron, collider, proton 1070
 
  • Y. Zhang, Y.S. Derbenev, A. Hutton, G.A. Krafft, R. Li, F. Lin, V.S. Morozov, E.W. Nissen, R.A. Rimmer, H. Wang, S. Wang, B.C. Yunn, H. Zhang
    JLAB, Newport News, Virginia, USA
  • M.K. Sullivan
    SLAC, Menlo Park, California, USA
  
  Funding: Supported by the U.S. Department of Energy, Office of Nuclear Physics, under Contract No. DE-AC05-06OR23177 and DE-AC02-06CH11357.
A polarized electron-ion collider is envisioned as the future nuclear science program at JLab beyond the 12 GeV CEBAF. Presently, a medium energy collider (MEIC) is set as an immediate goal with options for a future energy upgrade. A comprehensive design report for MEIC has been released recently. The MEIC facility could also accommodate electron and proton/ion collisions in a low CM energy range, covering proton energies from 10 to 25 GeV and ion energies with a similar magnetic rigidity, for additional science reach. In this paper, we present a conceptual design of this low energy collider, LEIC, showing its luminosity can reach above 1033 cm-2s−1. The design specifies that the large booster of the MEIC is converted to a low energy ion collider ring with an interaction region and an electron cooler integrated into it. The design provides options for either sharing the detector with the MEIC or a dedicated low energy detector in a third collision point, with advantages of either a minimum cost or extra detection parallel to the MEIC operation, respectively. The LEIC could be positioned as the first and low cost phase of a multi-stage approach to realize the full MEIC. 		 
 
TUODB203 Dual Chip in Single Module Solid-State Power Amplifier Design for Compact Transmitter Architecture insertion, impedance, storage-ring, linac 1158
 
  • T.-C. Yu, L.-H. Chang, M.H. Chang, L.J. Chen, F.-T. Chung, M.-C. Lin, Y.-H. Lin, Z.L. Liu, C.H. Lo, M.H. Tsai, Ch. Wang, T.-T. Yang, M.-S. Yeh
    NSRRC, Hsinchu, Taiwan
  
  At present, the high power solid-state technique transmitter design are composed of hundreds parallel combined single chip for hundreds Watts power modules to achieve enough output power. Although the large numbers can bring high redundancy during system operation, the power hungry of next generation RF system of accelerator would need much more modules to reach its power requirement. Huge amount of power modules would bring the complexity and difficulty in power combining, system construction, management and maintenance. To overcome this problem, upgrading the power level of a single module could be the solution. Besides depending on the power level growing with technology advancement in semiconductor industry, a circuit level solution to combine dual chip in advance in a single PCB board is proposed to produce twice power as single chip. Such feasible solution can overcome the over-complexity of future several-hundreds kW solid-state transmitter design.  
slides icon Slides TUODB203 [2.337 MB]  
 
TUPFI009 NICA project at JINR ion, collider, luminosity, heavy-ion 1343
 
  • G.V. Trubnikov, N.N. Agapov, E.D. Donets, V.V. Fimushkin, E.V. Gorbachev, A. Govorov, E.V. Ivanov, V. Karpinsky, V.D. Kekelidze, H.G. Khodzhibagiyan, A.D. Kovalenko, K.A. Levterov, V.A. Matveev, I.N. Meshkov, V.A. Mikhailov, V. Monchinsky, S. Romanov, N. Shurkhno, A.O. Sidorin, V. Slepnev, A.V. Smirnov, A. Sorin, N.D. Topilin
    JINR, Dubna, Moscow Region, Russia
  • O.I. Brovko, A.V. Butenko, E.E. Donets, A.V. Eliseev, O.S. Kozlov, A.V. Philippov, N.V. Semin, A. Tuzikov, V. Volkov
    JINR/VBLHEP, Moscow, Russia
  
  The Nuclotron-based Ion Collider fAcility (NICA) is a new accelerator complex being constructed at JINR aimed to provide the collider experiments with ion-ion (Au79+) and ion-proton collisions at the energy range of 1-4.5 GeV/n and also the collisions of polarized proton-proton and deuteron-deuteron beams. Progress in the project realization is reported.  
 
TUPFI082 RHIC Performance for FY2012 Heavy Ion Run ion, luminosity, feedback, heavy-ion 1538
 
  • Y. Luo, J.G. Alessi, M. Bai, E.N. Beebe, J. Beebe-Wang, I. Blackler, M. Blaskiewicz, J.M. Brennan, K.A. Brown, D. Bruno, J.J. Butler, R. Connolly, T. D'Ottavio, K.A. Drees, A.V. Fedotov, W. Fischer, C.J. Gardner, D.M. Gassner, X. Gu, Y. Hao, M. Harvey, T. Hayes, L.T. Hoff, H. Huang, P.F. Ingrassia, J.P. Jamilkowski, N.A. Kling, M. Lafky, J.S. Laster, C. Liu, D. Maffei, Y. Makdisi, M. Mapes, G.J. Marr, A. Marusic, F. Méot, K. Mernick, R.J. Michnoff, M.G. Minty, C. Montag, J. Morris, C. Naylor, S. Nemesure, A.I. Pikin, P.H. Pile, V. Ptitsyn, D. Raparia, G. Robert-Demolaize, T. Roser, P. Sampson, J. Sandberg, V. Schoefer, C. Schultheiss, F. Severino, T.C. Shrey, K.S. Smith, S. Tepikian, P. Thieberger, D. Trbojevic, J.E. Tuozzolo, B. Van Kuik, G. Wang, M. Wilinski, A. Zaltsman, K. Zeno, S.Y. Zhang, W. Zhang
    BNL, Upton, Long Island, New York, USA
  
  Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy.
In the 2012 RHIC heavy ion run, we collided 96.4~GeV U-U ions and 100~GeV Cu-Au ions for the first time in RHIC. The new pre-injector with the electron-beam ion source (EBIS) was used to provide ions for RHIC ion collisions for the first time. By adding the horizontal cooling, the powerful 3-D stochastic cooling largely enhanced the luminosity. With the double bunch merging in the Booster and AGS, the bunch intensities of Cu and Au ions in RHIC surpassed their projections. Both PHENIX and STAR detectors reached their integrated luminosity goals for the U-U and Cu-Au collisions. In this article we review the machine improvement and performance in this run. 		 
 
TUPWO041 Beam Size and Emittance Measurements during the ALBA Booster Ramp emittance, linac, injection, dipole 1964
 
  • U. Iriso, G. Benedetti
    CELLS-ALBA Synchrotron, Cerdanyola del Vallès, Spain
  
  The beam emittance in the ALBA Booster is damped from 50·10-6 m*rad to 10-9 m*rad during the energy acceleration from 110 MeV to 3 GeV. The synchrotron radiation monitor installed in a dipole magnet provides the transverse beam size evolution along the energy ramp, which is then used to calculate the emittance evolution during the full booster cycle (from injection to extraction). In this report, we present the experimental set-up and technique of this measurement, and discuss the agreement between the measured parameters and theoretical values.  
 
TUPWO047 Preliminary Results of Linear Optics From Orbit Response in the CERN PSB quadrupole, dipole, optics, coupling 1973
 
  • M.J. McAteer, C. Carli, B. Mikulec, R. Tomás
    CERN, Geneva, Switzerland
  • M. Aiba
    PSI, Villigen PSI, Switzerland
  
  Funding: This research project is supported by a Marie Curie Early Initial Training Network Fellowship of the European Community's Seventh Framework Programme under contract number (PITN-GA-2011-289485-OPAC)
Future operations for the CERN accelerator complex will require the PS Booster to deliver higher intensity beam without increasing emittances, and having an accurate knowledge of the machine’s lattice imperfections will be necessary. We present preliminary results of the analysis of orbit response measurements in the PS Booster to determine the linear optics and to identify field errors in each of the machine’s four rings. 		 
 
TUPWO073 Precision Tune, Phase and Beta Function Measurement by Frequency Analysis in RHIC optics, dipole, betatron, kicker 2027
 
  • C. Liu, R.L. Hulsart, A. Marusic, R.J. Michnoff, M.G. Minty, P. Thieberger
    BNL, Upton, Long Island, New York, USA
  
  Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy.
The high quality of the RHIC turn-by-turn (TbT) data obtained from the beam position monitor (BPM) system was fully exploited by using two analysis approaches. One is a time domain least square fitting technique and the other one is a frequency domain interpolated Fourier Transform technique. Both methods were applied to 1024-turn data from kicked beam and from continuous coherent excitation experiments. The betatron phase precisions obtained with both methods were ~0.1 degree for the continuous excitation and ~0.2 degree for the impulse excitation. The algorithms of these two analyses and comparison of their results will be presented in this report. 		 
 
WEPWA011 Injector Linac for the MESA Facility linac, SRF, electron, target 2150
 
  • R.G. Heine, K. Aulenbacher
    IKP, Mainz, Germany
  
  Funding: Work supported by the German Federal Ministery of Education and Research (BMBF) and German Research Foundation (DFG) under the Cluster of Excellence "PRISMA"
In this paper we present several possible configurations of an injector linac for the upcoming Mainz Energy-recovering Superconducting Accelerator (MESA)* and discuss their suitability for the project.
*R. Heine, K. Aulenbacher, R. Eichhorn "MESA - Sketch of An Energy Recovery Linac For Nuclear Physics Experiments At Mainz" IPAC 12, New Orleans, USA, 2012, p.1993, TUPR073
 		 
 
WEPWA012 Preliminary Design of Transfer Lines for the ILSF Accelerator Complex storage-ring, linac, synchrotron, electron 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 kicker, electron, injection, 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.  
 
WEPWA017 Development of Laser-Compton X-ray Source using Optical Storage Cavity laser, electron, cavity, linac 2165
 
  • K. Sakaue, M. Washio
    Waseda University, Tokyo, Japan
  • M.K. Fukuda, Y. Honda, N. Terunuma, J. Urakawa
    KEK, Ibaraki, Japan
  
  Funding: Work supported by the Quantum Beam Technology Program of MEXT and JSPS Grant-in-Aid for Young Scientists (B) 23740203
We have been developing a pulsed-laser storage technique in a super-cavity for a compact x-ray sources. The pulsed-laser super-cavity enables to make high peak power and small waist laser at the collision point with the electron beam. We already obtained a pulse-train x-rays through the laser-Compton scattering between a multi-bunch electron beam and an optical super-cavity. And also, we performed a X-ray imaging via laser-Compton X-ray. On these successful results, we decided to upgrade our system for increasing X-ray flux by 3-order of magnitudes for practical use. For an optical cavity, we designed 4-mirrors bow-tie cavity in order to increase the power. On the other hand, electron accelerator was also upgraded to increase the bunch number in the train. We use 3.6cells rf-gun and 12cell standing wave booster linac. As a result, 2-order increase of X-ray flux was achieved. Design of upgraded our laser-Compton X-ray source, the results of X-ray experiments and future prospective will be presented at the conference. 		 
 
WEPEA065 Beam Tests and Plans for the CERN PS Booster Wideband RF System Prototype cavity, feedback, controls, LLRF 2660
 
  • M.M. Paoluzzi, M. E. Angoletta, A. Findlay, M. Haase, M. Jaussi
    CERN, Geneva, Switzerland
  
  In the framework of the LHC Injectors Upgrade project (LIU) and in view of a complete replacement of the existing CERN PS Booster (PSB) RF systems, a prototype cavity has been installed beginning of 2012 in the machine. This modular, wideband (0.5 / 4 MHz), Finemet® loaded system uses solid-state power stages and includes fast RF feedback for beam loading compensation. In depth studies have been performed during 2012 to evaluate the system interaction with the new low-level digital electronics, its ability to accelerate the beam and cope with high beam intensity. The encouraging results suggest that this innovative approach can indeed be used to replace all the existing PSB RF systems but additional testing with a full scale prototype is required. This paper reports about the project status, the achieved results, the encountered difficulties and the foreseen prototype completion in preparation during 2013.  
 
WEPFI004 Commissioning of First 352.2 MHz - 150 kW Solid State Amplifiers at the ESRF and Status of R&D cavity, storage-ring, HOM, status 2708
 
  • J. Jacob, L. Farvacque, G. Gautier, M.L. Langlois, J.M. Mercier
    ESRF, Grenoble, France
  
  Funding: This work receives funding from the EU as work package WP7 in the FP7/CRISP project.
Four 352.2 MHz - 150 kW Solid State Amplifiers (SSA), based on the SOLEIL design and supplied by ELTA/AREVA, are in operation on the ESRF booster since April 2012. A number of interesting effects were observed during commissioning that are inherent to the combination of many RF amplifier modules at high power. While it has only little impact on the booster SSA operated in pulsed regime, some modifications were necessary for the three SSAs that will be delivered by ELTA for an operation in CW on the storage ring. In parallel, the ESRF is developing a more compact SSA using cavity combiners *) instead of the widely adopted coaxial combiner trees. The status of this R&D project will also be reported. 		 
 
WEPFI027 The Measurement of the Ferrite Rings for the Mass Production RF Cavity of CSNS RCS cavity, impedance, LLRF, resonance 2762
 
  • H. Shi, W.L. Huang, B. Jiang, X. Li, W. Long, W.Y. Song, H. Sun, J.Y. Tang, C.L. Xie, C.L. Zhang, W. Zhang
    IHEP, Beijing, People's Republic of China
  
  The Rapid Cycling Synchrotron (RCS) of the China Spallation Neutron Source (CSNS) will install 8 ferrite-loaded coaxial resonant cavities. The construction and measurement of prototype cavity have been finished. Based on the existing experiences, the small inner diameter (ID) rings T500/250/25-4M2 (mm) have been adopted for the mass production RF cavity, and the test results have shown that such rings can bear more RF magnetic flux density and have lower power loss. The characteristics of 60 small ID rings have been measured with two-ring test system, and we figured out that the rings have good consistence and the shunt impedance of all rings is above 100 Ω.  
 
WEPFI057 Longitudinal Design and RF Stability Requirements for the SwissFEL Facility linac, wakefield, emittance, undulator 2821
 
  • B. Beutner
    PSI, Villigen PSI, Switzerland
  
  The SwissFEL facility will produce coherent, bright, and short photon pulses covering a wavelength range down to an angstrom, requiring an emittance between 0.18 to 0.43 mm mrad at bunch charges between 10 pC and 200 pC. In nominal operation continuous changes in this range will be offered to the users to allow an individual tradeoff between photon power and pulse length. The facility consists of a S-band RF-gun, booster, and a C-band main linac, which accelerates the beam up to 5.8 GeV. Two compression chicanes will provide a nominal peak current of about 1 to 3 kA depending on the charge. The stability of RF systems is a key design issue for stable compression schemes at reliable user facilies. In this paper different operation modes are presented and discussed in terms of machine stability requirements.  
 
WEPME002 Fast Orbit Feedback at BESSY-II: Performance and Operational Experiences controls, feedback, status, injection 2920
 
  • R. Müller, T. Birke, M. Diehn, D.B. Engel, B. Franksen, R. Görgen, P. Kuske, R. Lange, I. Müller, A. Schälicke, G. Schindhelm
    HZB, Berlin, Germany
  
  At the 3rd generation light source BESSY II the first phase of a fast orbit feedback system(*) has been completed and put into operation in 2012. In this first phase the aim was to achieve noise suppression in the 1Hz to several 10Hz range, mostly avoiding expensive upgrades to existing hardware, such as beam position monitors and the CAN based setpoint transmission to the power supplies. Only the power supplies were replaced with newer, faster versions. This paper describes the capability of the phase-I FOFB with respect to beam motion transient suppression, low frequency damping and high frequency noise generation as well as aspects of operational integration and stability.
* Müller, R. et. al.: Installing a Fast Orbit Feedback at BESSY.
IPAC 10, Kyoto, Japan, 23 - 28 May, 2010., p. 2749-2751
 		 
poster icon Poster WEPME002 [2.720 MB]  
 
WEPME035 Overview of the RF Synchronization System for the European XFEL laser, linac, LLRF, undulator 3001
 
  • K. Czuba, D. Sikora, L. Zembala
    Warsaw University of Technology, Institute of Electronic Systems, Warsaw, Poland
  • J. Branlard, F. Ludwig, H. Schlarb, H.C. Weddig
    DESY, Hamburg, Germany
  
  One of the most important requirements for the European XFEL RF system is to assure a very precise RF field stability within the accelerating cavities. The required amplitude and phase stability equals respectively dA/A <3·10-5, dphi<0.01 deg @ 1.3GHz in the injector and dA/A<10-3, dphi <0.1 deg @1.3GHz in the main LINAC section. Fulfilling such requirements for the 3.4 km long facility is a very challenging task. Thousands of electronic and RF devices must be precisely phase synchronized by means of harmonic RF signals. We describe the proposed architecture of the RF Master Oscillator and the Phase Reference Distribution System designed to assure high precision and reliability. A system of RF cable based interferometers supported by femtosecond-stable optical links will be used to distribute RF reference signals with required short and long term phase stability. We also present test results of prototype devices performed to validate our concept.  
 
THPEA032 Software for Power Supplies Control of the NSLS-II Booster Synchrotron controls, status, EPICS, monitoring 3213
 
  • P.B. Cheblakov, A.A. Derbenev, S.E. Karnaev, S.S. Serednyakov
    BINP SB RAS, Novosibirsk, Russia
  • M.A. Davidsaver, Y. Tian
    BNL, Upton, New York, USA
  
  The booster synchrotron of the NSLS-II light source at Brookhaven National Laboratory (BNL) provides electron beam acceleration from 200 MeV up to 3 GeV in 300 ms. This imposes strict conditions on both accuracy of control and synchronization of ramping Power Supplies (PS). Hardware part of PS controls are based on electronics specially developed at BNL and includes Power Supply Controllers (PSC) and Power Supply Interfaces (PSI). The former represents digital part of hardware and implements low-level logic (generating ramp functions, simple data verification and data acquisition), communication with control system software and PSI. The latter is an analogue part of entire system and it performs generation and acquisition analogue and digital signals by a set of on-board DACs, ADCs and digital inputs/outputs. The PSC and the PSI are connected by digital fibre optic link for electrical decoupling. This paper describes software for the booster synchrotron PSs control which is based on EPICS and includes a specially designed electronics configuration, a set of programs to manage ramp functions and to control different types of power supplies, both pulsed and ramping.  
 
THPEA033 Electronics for Precise Measurements of Accelerator Pulsed Magnets extraction, injection, induction, septum 3216
 
  • A.V. Pavlenko, A.M. Batrakov, I.V. Ilyin
    BINP SB RAS, Novosibirsk, Russia
  
  Injection and extraction systems of modern accelerator complexes have high requirements for measurements accuracy of pulsed magnets field parameters. To satisfy these demands the fast and precision digital integrators were elaborated in BINP, Russia. These devices are intended for measurements in pulsed magnets (septum magnets, bumps, etc.) with the field duration, ranging from 5 μs, providing a relative accuracy better than 5•10-5. The set of these devices are the main measuring electronics in injection and extraction section of 3 GeV Booster Ring at NSLS-II facility, which is under construction now in BNL (USA).  
 
THPEA052 TLS Operation Information Management: Automatic Logging Tools kicker, injection, klystron, linac 3261
 
  • C.C. Liang, H.C. Chen, J. Chen, C.K. Chou, S. Fann, K.T. Hsu, K.H. Hu, J.A. Li, D. Lin, T.F. Lin, Y.K. Lin, Y.-C. Liu, C.Y. Wu
    NSRRC, Hsinchu, Taiwan
  • Y.-C. Liu
    NTHU, Hsinchu, Taiwan
  
  The Taiwan Light Source (TLS) has been operated in the Top-up mode since October 2005 and has maintained a beam current of 360mA since 2010. Several essential parameters and waveforms are constantly recorded as routine accelerator operation reference. Therefore, five LabVIEW-based data and waveform logging software programs have been developed for the purpose of preliminary diagnose at the TLS. In this report, certain actual cases in regular operation are presented.  
 
THPEA063 NSLS II Injector Integrated Testing controls, target, linac, diagnostics 3285
 
  • G.M. Wang, B. Bacha, A. Blednykh, E.B. Blum, W.X. Cheng, J. Choi, L.R. Dalesio, M.A. Davidsaver, J.H. De Long, R.P. Fliller, W. Guo, K. Ha, H.-C. Hseuh, Y. Hu, W. Louie, M.A. Maggipinto, D. Padrazo, T.V. Shaftan, G. Shen, O. Singh, Y. Tian, K. Vetter, F.J. Willeke, H. Xu, L. Yang, X. Yang
    BNL, Upton, Long Island, New York, USA
  • P.B. Cheblakov, A.A. Derbenev, A.I. Erokhin, S.M. Gurov, R.A. Kadyrov, S.E. Karnaev, E.A. Simonov, S.V. Sinyatkin, V. Smalyuk
    BINP SB RAS, Novosibirsk, Russia
  
  The NSLS-II is a state of the art 3 GeV synchrotron light source under construction at Brookhaven National Laboratory. Since 2012, the injector system gradually moves to the commissioning stage. It occurs after group people efforts on optics design, equipment specifications, construction and tests, assembly, installation and alignment. It is very important and exciting. To make the commissioning smooth and efficient, an important effort was put on the sub-system integration test to make sure the device function along with utility, timing system and control system, to calibrate diagnostics system and to debug high level application with simulated beam signals and required hardware. In this paper, we report our integration test experience and related control system software development.  
 
THPFI045 Reliability Approach for Machine Protection Design in Particle Accelerators linac, controls, proton, beam-losses 3388
 
  • A. Apollonio, J.-B. Lallement, B. Mikulec, B. Puccio, J.L. Sanchez Alvarez, R. Schmidt, S. Wagner
    CERN, Geneva, Switzerland
  
  Particle accelerators require Machine Protection Systems (MPS) to prevent beam induced damage of equipment in case of failures. This becomes increasingly important for proton colliders with large energy stored in the beam such as LHC, for high power accelerators with a beam power of up to 10 MW, such as the European Spallation Source (ESS), and for linear colliders with high beam power and very small beam size. The reliability of Machine Protection Systems is crucial for safe machine operation; all possible sources of risk need to be taken into account in the early design stage. This paper presents a systematic approach to classify failures and to assess the associated risk, and discusses the impact of such considerations on the design of Machine Protection Systems. The application of this approach will be illustrated using the new design of the MPS for LINAC 4, a linear accelerator under construction at CERN.  
 
THPFI062 Design of Air-cooled Beam Dump for Extraction Line of PS Booster shielding, simulation, cavity, proton 3436
 
  • A. Perillo-Marcone, T. Antonakakis, M. Battistin, M.A. Czapski, G.W. Mason, E.M. Nowak, A. Sarrió Martínez, S. Sgobba, V. Venturi, V. Vlachoudis
    CERN, Geneva, Switzerland
  
  A new beam dump has been designed, which withstands the future proton beam extracted from the PS Booster at CERN, consisting of up to 1014 protons per pulse at 2 GeV after its upgrade in 2018/2019. In order to be able to efficiently release the deposited heat, the new dump will be made out of a single cylindrical block of a copper alloy and be cooled by forced ventilation. In order to determine the energy density distribution deposited by the beam in the dump, Monte Carlo simulations were performed using FLUKA, and thermo-mechanical analyses carried out by importing the energy density into Ansys. In addition, CFD simulations of the airflow were carried out in order to accurately estimate the heat transfer convection coefficient on the surface of the dump. In this paper we describe the design process and highlight the constraints of integrating a new dump for increased beam power into the existing facility.  
 
THPFI068 Status of the Utility System Construction for the 3 GeV TPS Storage Ring storage-ring, controls, status, synchrotron 3454
 
  • J.-C. Chang, W.S. Chan, J.-R. Chen, Y.F. Chiu, Y.-C. Chung, C.W. Hsu, K.C. Kuo, Y.-C. Lin, C.Y. Liu, Y.-H. Liu, Z.-D. Tsai, T.-S. Ueng
    NSRRC, Hsinchu, Taiwan
  
  The construction of the utility system for the 3.0 GeV Taiwan Photon Source (TPS) was started in the end of 2009. The utility building for the TPS ring has been completed in the end of 2012. Main utility equipment has been installed inside. The whole construction of the utility system is scheduled to be completed in the mid of 2013. Total budget of this construction is about four million dollars. This utility system presented in this paper includes the electrical power, cooling water, air conditioning, compressed air and fire control systems.  
 
THPFI077 Construction Status of the TPS Vacuum Systems vacuum, ion, storage-ring, photon 3472
 
  • G.-Y. Hsiung, C.K. Chan, C.H. Chang, C.-C. Chang, S.W. Chang, Y.P. Chang, C.L. Chen, J.-R. Chen, Z.W. Chen, C.M. Cheng, Y.T. Cheng, S-N. Hsu, H.P. Hsueh, C.S. Huang, Y.T. Huang, T.Y. Lee, L.H. Wu, Y.C. Yang
    NSRRC, Hsinchu, Taiwan
  • J.-R. Chen
    National Tsing Hua University, Hsinchu, Taiwan
  
  The vacuum systems for the 3 GeV Taiwan Photon Source (TPS) have been constructed since 2010. Most of the vacuum components and equipments have been manufactured and delivered. For the electron storage ring (SR), all the 24 cells of 14 m aluminum vacuum systems have been welded and assembled. The vacuum baking for the cells in the laboratory was undergoing to achieve the ultrahigh vacuum pressure below 1×10-8 Pa. The vacuum systems accommodated with the insertion devices in the long straight sections have been designed and under manufacturing. For the booster (BR), all the stainless steel chambers including the 0.7 mm elliptical chambers, BPM ducts, and the pumping chambers, have been manufactured. The two transport lines: LTB for Linac to BR and BTS for BR to SR were manufactured. Vacuum chambers for BTS adopt the similar chambers for BR but will be baked to ultrahigh vacuum for connecting with SR without injection window. The beam ducts for LTB will be made of aluminum alloys. The construction works for TPS vacuum systems will be completed before April of 2013 while the installation of the systems in the TPS tunnel will be started immediately.  
 
THPME003 Standard Sextupole Magnets for NSLS-II Synchrotron sextupole, dipole, synchrotron, target 3517
 
  • C.W.O. Ostenfeld, N. Hauge, P. Ladefoged
    Danfysik A/S, Taastrup, Denmark
  
  Danfysik received the order to design, manufacture and test 169 Standard Sextupole Magnets for the NSLS-2 synchrotron. Extraordinary tight tolerances were specified for the mechanical and magnetic properties. We present a re-optimized magnetic pole profile to make a more mechanically robust design, suitable for large-scale manufacture. Due to a well-controlled wire erosion process during the manufacturing stage, the mechanical tolerances were kept on the 10 micron level, even after assembly/disassembly cycles. A major challenge of the project was to verify the magnetic performance of the magnets. This was done using our in-house harmonic measurement bench. We present magnetic measurements of the magnet series, measured over more than 24 months, which show high stability, both in terms of magnetic roll angle, error field terms, and integrated strength.  
 
THPME028 Prototype Superconducting Magnets for the NICA Accelerator Complex dipole, quadrupole, collider, ion 3567
 
  • H.G. Khodzhibagiyan, A.V. Bychkov, A.R. Galimov, O.S. Kozlov, G.L. Kuznetsov, I.N. Meshkov, V.A. Mikhaylov, A.V. Shabunov, A.Y. Starikov, G.V. Trubnikov
    JINR, Dubna, Moscow Region, Russia
  
  NICA is a new accelerator complex being under design and construction at the Joint Institute for Nuclear Research (JINR) in Dubna. Full-size prototype dipole and quadrupole magnets for the booster synchrotron and the NICA collider have been designed, manufactured and tested. The magnets are based on a cold window frame iron yoke and a saddle-shaped superconducting winding made from a hollow NbTi composite superconducting cable cooled with a forced two-phase helium flow at T = 4.5 K. The maximal operating magnetic field in the aperture is 1.8 T. The magnetic field ramp rate of 1.2 T/s should be achievable. The quench history, AC losses as a function of the magnetic field ramp rate and pressure drop in the cooling channels of the magnets at different pulsed operation modes are presented.  
 
THPME029 Design of NSLS-II Booster Dipoles with Combined-function Magnetic Field dipole, sextupole, extraction, injection 3570
 
  • S.V. Sinyatkin, A.N. Dubrovin, S.M. Gurov, E.B. Levichev, Yu.A. Pupkov, E.R. Rouvinsky, A.V. Sukhanov
    BINP SB RAS, Novosibirsk, Russia
  
  Focusing and defocusing dipoles magnets of NSLS-II 3 GeV booster are designed, manufactured and measured in BINP, Russia. The magnets should provide the booster operation at energy from 170 MeV to 3.15 GeV with a 2 Hz frequency. Because of booster compactness the dipoles have quadrupole and sextupole components and should create high quality of field of ± 2·10-4 in region of ± 2 cm. In this paper the design and results of 2D and 3D simulation are presented.  
 
THPME030 Magnetic Measurement Results of the NSLS-II Booster Dipole Magnets dipole, alignment, sextupole, extraction 3573
 
  • S.V. Sinyatkin, G.N. Baranov, A.M. Batrakov, P.N. Burdin, D.B. Burenkov, S.M. Gurov, V.A. Kiselev, V.V. Kobets, E.B. Levichev, I.N. Okunev, A. Polyansky, Yu.A. Pupkov, L.E. Serdakov, P. Vobly
    BINP SB RAS, Novosibirsk, Russia
  
  Focusing and defocusing dipole magnets for NSLS-II 3 GeV booster are designed, manufactured and measured in BINP, Russia. Magnetic measurements of 32 BD and 28 BF magnets are made by BINP. In this paper the results of magnetic measurements of dipoles magnets in the field area of 0.638 – 11.829 kGs for BD type and 0.260 - 4.829 kGs for BF type are given. Analysis and comparison with magnetic field simulation are made.  
 
THPME031 Ramped Magnetic Measurement of NSLS-II Booster Dipoles vacuum, dipole, quadrupole, sextupole 3576
 
  • I.N. Okunev, G.N. Baranov, A.M. Batrakov, A.I. Erokhin, V.A. Kiselev, V.V. Kobets, A.V. Pavlenko, S.V. Sinyatkin, R.V. Vakhrushev
    BINP SB RAS, Novosibirsk, Russia
  
  13. The magnetic system of NSLS II Booster are designed, manufactured and tested in BINP, Russia. The dipoles of the Booster have quadrupole and sextupole components and should create high quality of field ± 2·10-4 in region ± 2 cm. Magnets should provide performance of booster for energy from 170 MeV to 3.15 GeV with 2 Hz frequency. This report considers ramped magnetic measurement of NSLS-II Booster Dipoles.  
 
THPME032 Magnetic Measurement of the NSLS-II Booster Dipole with Combine Functions dipole, extraction, quadrupole, sextupole 3579
 
  • I.N. Okunev, G.N. Baranov, A.M. Batrakov, P.N. Burdin, D.B. Burenkov, V.V. Kobets, A. Polyansky, L.E. Serdakov, S.V. Sinyatkin
    BINP SB RAS, Novosibirsk, Russia
  
  The magnetic system of NSLS II Booster are designed, manufactured and tested in BINP, Russia. The dipoles of the Booster have quadrupole and sextupole components and should create high quality of field ± 2·10-4 in region ± 2 cm. Magnets should provide performance of booster for energy from 170 MeV to 3.15 GeV with 2 Hz frequency. To measure multipole field components one need to know accurate position of the probes in 3D coordinates. This report considers description of the magnetic measurement stand and achived accuracy for DC case.  
 
THPME033 Pulsed Magnets for Injection and Extraction Sections of NSLS-II 3 GeV Booster septum, vacuum, injection, extraction 3582
 
  • A.N. Zhuravlev, A.M. Batrakov, A.D. Chernyakin, V.A. Kiselev, V.M. Konstantinov, A.V. Pavlenko, V.V. Petrov, E.P. Semenov, D.V. Senkov
    BINP SB RAS, Novosibirsk, Russia
  
  Magnets for injection and extraction sections of NSLS-II 3 GeV booster are designed, manufactured and tested in BINP, Russia. This report considers the details of bump and septum magnets design, their parameters and results of inspection test in BINP. The design and electronics features of the measurement stand for these magnets are presented. Also, capabilities of specialized power supplies are listed and discussed. Finally, the first results of injection and extraction sections commissioning at BNL site are reported.  
 
THPME036 Design and Measurement of the Transfer Line Magnets for the Taiwan Photon Source quadrupole, dipole, simulation, linac 3591
 
  • C.Y. Kuo, C.-H. Chang, H.-H. Chen, Y.L. Chu, J.C. Huang, M.-H. Huang, C.-S. Hwang, J.C. Jan, F.-Y. Lin
    NSRRC, Hsinchu, Taiwan
  
  The Taiwan photon source (TPS) transfer line from the linac to the booster (LTB) is made of 1 bending magnet, 11 quadrupoles and the booster to the storage ring (BTS) is include of 2 bending magnets, 7 quadrupoles. LTB bending magnet is provided for 11 degrees defection from the linac to the booster and 31 degrees from the linac to the beam dumper with two operating currents. The BTS quadrupoles are included four 0.3m and three 0.4m magnets which cross sections are the same with booster quadrupole give different integral quadrupole field strengths and cooling systems are redesign from 2 circuits to 4. The magnetic fields were simulated with Opera 2D and 3D; optimum processes are discussed. All of the magnets have been constructed by Danfysik, scanditronix and Gongin. This paper discusses the features, the design concept and the results of field measurements of these transfer line magnets.  
 
THPME037 Magnetic Field Character of TPS Booster Magnets quadrupole, sextupole, multipole, dipole 3594
 
  • J.C. Jan, C.-H. Chang, H.-H. Chen, Y.L. Chu, M.-H. Huang, C.-S. Hwang, C.Y. Kuo, F.-Y. Lin, C.S. Yang, Y.T. Yu
    NSRRC, Hsinchu, Taiwan
  
  The Taiwan Photon Source (TPS) is a 3-GeV synchrotron radiation facility operated in top-up injection mode. The booster ring of TPS shares the same tunnel, concentric with the storage ring. The lattice of the booster is a 24-cell DBA of circumference 496.8 m. The energy of the electron beam is ramped from 150 MeV to 3 GeV at repetition rate 3 Hz in the booster ring. The trajectory of the electron beam is controlled with complicated combined-function magnets including combined dipole magnet, combined quadrupole magnet, pure quadrupole magnet, sextupole magnet and corrector magnet. The measurement and performance of these magnets are discussed in this letter.  
 
THPWA052 Proposal for a muSR Facility at BNL target, proton, linac, extraction 3749
 
  • W. Fischer, J.G. Alessi, M. Blaskiewicz, K.A. Brown, C.J. Gardner, H. Huang, W.W. MacKay, P.H. Pile, D. Raparia, T. Roser
    BNL, Upton, Long Island, New York, USA
  
  Funding: Work supported by U.S. DOE under contract No DE-AC02-98CH10886 with the U.S. Department of Energy.
By implanting positive muons in a substance (either gas, liquid or solid), their magnetic moments can be used to sample the magnetic properties of the material. The precession rate can give the magnetic field strength, and the field direction is given away after the muons decay into positrons that are detected. The information obtained from muSR can be complementary to that from other methods such as NMR, ESR, and neutron scattering. A low energy muon surface source is particularly interesting for studying thin films. To date, only four user facilities exist in the world but none in the US. We explore the possibility of using the AGS complex at BNL for a muSR facility for the production of positive surface muons. 		 
 
THPWO078 Status of the Upgrade of the CERN PS Booster injection, extraction, linac, dipole 3939
 
  • K. Hanke, O. Aberle, M. E. Angoletta, W. Bartmann, S. Bartolome, E. Benedetto, C. Bertone, A. Blas, P. Bonnal, J. Borburgh, D. Bozzini, A.C. Butterworth, C. Carli, E. Carlier, J.R.T. Cole, P. Dahlen, M. Delonca, T. Dobers, A. Findlay, R. Froeschl, J. Hansen, D. Hay, S. Jensen, J.-M. Lacroix, P. Le Roux, L.A. Lopez Hernandez, C. Maglioni, A. Masi, G.W. Mason, S.J. Mathot, B. Mikulec, Y. Muttoni, A. Newborough, D. Nisbet, S. Olek, M.M. Paoluzzi, A. Perillo-Marcone, S. Pittet, B. Puccio, V. Raginel, B. Riffaud, I. Ruehl, A. Sarrió Martínez, J. Tan, B. Todd, V. Venturi, W.J.M. Weterings
    CERN, Geneva, Switzerland
  
  The CERN PS Booster (PSB) is presently undergoing an ambitious consolidation and upgrade program within the frame of the LHC Injectors Upgrade (LIU) project. This program comprises a new injection scheme for H− ions from CERN’s new Linac4, the replacement of the main RF systems and an energy upgrade of the PSB rings from 1.4 to 2.0 GeV which includes the replacement of the main magnet power supply as well as the upgrade of the extraction equipment. This paper describes the status and plans of this work program.  
 
THPWO079 A Possible Scheme to Deliver 2 GeV Beams from the CERN PS Booster to the ISOLDE Facility target, proton, dipole, ion 3942
 
  • K. Hanke, W. Bartmann, J.R.T. Cole, R. Fernandes Luis, A. Newborough, S. Pittet, T. Stora, D. Voulot
    CERN, Geneva, Switzerland
  
  The CERN PS Booster (PSB) is presently undergoing an upgrade program to increase its beam energy from 1.4 GeV to 2.0 GeV. While this energy upgrade is targeted at LHC-type beams, the option of delivering 2 GeV beams to the ISOLDE facility has also been investigated. In this paper we present a preliminary study for delivering 2 GeV beams to ISOLDE including the physics motivation and the implications on the accelerator hardware.