Keyword: booster
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MOIZB1 NSLS2 Diagnostic Systems Commissioning and Measurements storage-ring, diagnostics, injection, electronics 16
 
  • W.X. Cheng, B. Bacha, K. Ha, Y. Hu, M.A. Maggipinto, J. Mead, D. Padrazo, O. Singh, H. Xu
    BNL, Upton, Long Island, New York, USA
 
  As the newest and most advanced third generation light source, NSLS2 commissioning has started recently. A total of 50mA stored beam was achieved in the storage ring. Most of the diagnostic systems have been commissioned with beams and proved to be critical to the success of machine commissioning. This paper will present beam commissioning results of various diagnostic systems in the NSLS2 injector and storage ring, including profile monitors, current monitors, and position monitors. We will discuss some preliminary machine measurements as well, such as beam current and lifetime, tune, beam stability, filling pattern etc.  
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MOPF20 Diagnosing NSLS-II: A New Advanced Synchrotron Light Source storage-ring, diagnostics, controls, linac 100
 
  • Y. Hu, L.R. Dalesio, O. Singh, H. Xu
    BNL, Upton, Long Island, New York, USA
 
  NSLS-II, the successor to NSLS (National Synchrotron Light Source) at Brookhaven National Lab, is scheduled to be open to users worldwide by 2015 as a world-class advanced synchrotron light source because of its unique features: its half-mile-circumference (792 m) Storage Ring provides the highest beam intensity (500 mA) at medium-energy (3 GeV) with sub-nm-rad horizontal emittance (down to 0.5 nm -rad) and diffraction-limited vertical emittance at a wavelength of 1 Å (<8 pm-rad). As the eyes of NSLS-II accelerators to observe fascinating particle beams, beam diagnostics and controls systems are designed to monitor and diagnose the electron beam quality so that NSLS-II could be tuned up to reach its highest performance. The design and implementation of NSLS-II diagnostics and controls are described. Preliminary commissioning results of NSLS-II accelerators, including Linac, Booster, and Storage Ring, are presented.  
poster icon Poster MOPF20 [1.105 MB]  
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MOPF30 Diagnostics of the TPS Booster Synchrotron for Beam Commissioning synchrotron, injection, EPICS, radiation 114
 
  • K.T. Hsu, J. Chen, Y.-S. Cheng, P.C. Chiu, S.Y. Hsu, K.H. Hu, C.H. Huang, C.H. Kuo, D. Lee, C.Y. Liao, C.Y. Wu
    NSRRC, Hsinchu, Taiwan
 
  Booster synchrotron for the Taiwan photon source project is in commissioning. Diagnostics which consist of screen monitors, intensity monitors, beam position monitors, tune monitors, visible light synchrotron radiation monitors and radiation-sensing field-effect transistors are integrated with accelerator control system. Integration and functionality check were done recently. Details of these diagnostics and preliminary test results will be summarized in this report.  
poster icon Poster MOPF30 [1.036 MB]  
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MOPD09 Longitudinal Phase Space Tomography Using a Booster Cavity at the Photo Injector Test Facility at DESY, Zeuthen Site (PITZ) laser, electron, acceleration, gun 161
 
  • D. Malyutin, M. Groß, I.I. Isaev, M. Khojoyan, G. Kourkafas, M. Krasilnikov, B. Marchetti, F. Stephan, G. Vashchenko
    DESY Zeuthen, Zeuthen, Germany
 
  One of the ways to measure the longitudinal phase space of the electron bunch in a linear accelerator is a tomographic technique based on measurements of the bunch momentum spectra while varying the bunch energy chirp. The energy chirp at PITZ can be controlled by varying the RF phase of the CDS booster – the accelerating structure installed downstream the electron source (RF gun). The resulting momentum distribution can be measured with a dipole spectrometer downstream. As a result, the longitudinal phase space at the entrance of the CDS booster can be reconstructed. In this paper the tomographic technique for longitudinal phase space measurements is described. Results of measurements at PITZ are presented and discussed.  
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MOPD18 ALS Timing System Upgrade timing, embedded, controls, hardware 187
 
  • J.M. Weber, C.A. Lionberger, W.E. Norum, G.J. Portmann, C. Serrano, E.C. Williams
    LBNL, Berkeley, California, USA
 
  The Advanced Light Source (ALS) is in the process of upgrading its timing system as a part of the ALS Instrumentation and Controls Upgrade project. The timing system built upon construction of the machine at the beginning of the 1990s is still in operation today, and a replacement of the machine timing system is under way based on a commercially available solution, benefiting from 20 years of improvements in the fields of digital electronics and optical communications. An overview of the new timing system architecture based on a Micro-Research Finland (MRF) solution is given here.  
poster icon Poster MOPD18 [1.235 MB]  
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TUPF15 First Results with the Prototypes of New BPM Electronics for the Booster of the ESRF electronics, injection, Ethernet, storage-ring 351
 
  • K.B. Scheidt
    ESRF, Grenoble, France
 
  The 25 year old BPM electronics of the ESRF’s Booster (200 MeV to 6 GeV, 300m, 75 BPM stations) are in process of replacement with new modern acquisition electronics. The design and development of this acquisition system was done in collaboration with the Instrumentation Technologies company and has resulted in a commercial product under the name Libera-Spark. It contains RF filtering & amplification electronics in front of 14 bit & 110 MHz ADCs for 4 channels, followed by a (Xilinx ZYNQ) SystemonChip for all processing, that also includes the possibility of single bunch filtering directly on the ADC data. It is housed in a compact and robust module that is fully powered over the Ethernet connection and which facilitates its installation close to the BPM stations thereby avoiding long RF cabling. For simplicity and cost economic reasons this Spark is without PLL and adjustable RF attenuators since not needed for Booster BPM applications, but possible in elaborated versions for other applications. Two prototypes were fully tested with beam and results in terms of resolution & stability were assessed since delivery in January.  
poster icon Poster TUPF15 [4.855 MB]  
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WECYB2 NSLS-II RF Beam Position Monitor Comissioning Update timing, electronics, storage-ring, diagnostics 500
 
  • J. Mead, A. Caracappa, W.X. Cheng, C. Danneil, J.H. De Long, A.J. Della Penna, K. Ha, B.N. Kosciuk, M.A. Maggipinto, D. Padrazo, B. Podobedov, O. Singh, Y. Tian, K. Vetter
    BNL, Upton, Long Island, New York, USA
 
  The National Synchrotron Light Source II (NSLS-II) is a third generation light source currently in the commissioning stage at Brookhaven National Laboratory. The project includes a highly optimized, ultra-low emittance, 3GeV electron storage ring, linac pre-injector and full energy booster synchrotron. Successful commissioning of the booster began in November 2012, followed by the ongoing commissioning of the NSLS-II 3GeV electron storage ring which began in March 2014. With those particles first injected, came a value realization of the in-house developed RF Beam Position Monitor (RF BPM). This in-house design knowledge proved to be extremely valuable to match BPM configurations and requirements quickly when needed with various injected beam conditions. The RF BPM system was envisioned and undertaken to meet or exceed the demanding applications of a third generation light source. This internal R&D project has since matured to become a fully realized diagnostic system with over 250 modules currently operational. Initial BPM performance and applications will be discussed.  
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WEPD17 Commissioning Results of MicroTCA.4 Stripline BPM System electronics, synchrotron, linac, synchrotron-radiation 680
 
  • C. Xu, S. Allison, S. L. Hoobler, D.J. Martin, J.J. Olsen, T. Straumann, A. Young
    SLAC, Menlo Park, California, USA
  • H.-S. Kang, C. Kim, S.J. Lee, G. Mun
    PAL, Pohang, Kyungbuk, Republic of Korea
 
  Funding: Work supported by U.S. Department of Energy under Contract Numbers DE-AC02-06CH11357, DE-AC02-76SF00515, and WFOA13-197
SLAC National Accelerator Laboratory is a premier photon science laboratory. SLAC has a Free Electron Laser facility that will produce 0.5 to 77 Angstroms x-rays and a synchrotron light source facility. In order to achieve this high level of performance, the beam position measurement system needs to be accurate so the electron beam bunch can be stable. We have designed a general purpose stripline Beam Position Monitor (BPM) system that has a dynamic range of 10pC to 1nC bunch charge. The BPM system uses the MicroTCA (Micro Telecommunication Computing Architecture) for physics platform that consists of a 14-bit 250 MSPS ADC module (SIS8300 from Struck) that uses the Zone 3 A1.x classification for the Rear Transition Module (RTM). This paper will discuss the commissioning result at SLAC LCLS-I, SLAC SSRL, and Pohang Accelerator Laboratory. The RTM architecture includes a bandpass filter at 300MHz with 30 MHz bandwidth, and an automated BPM calibration process. The RTM communicates with the AMC FPGA using a QSPI interface over the zone 3 connection.
 
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