Keyword: collider
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MOP009 A Snapshot of CERN Beam Instrumentation R&D Activities radiation, electron, instrumentation, proton 49
  • T. Lefèvre, D. Alves, A. Boccardi, S. Jackson, F. Roncarolo, J.W. Storey, R. Veness, C. Zamantzas
    CERN, Meyrin, Switzerland
  The CERN accelerator complex stands out as an unique scientific tool, distinguished by its scale and remarkable diversity. Its capacity to explore a vast range of beam parameters is truly unparalleled, spanning from the minute energies of around a few keV and microampere antiproton beams, decelerated within the CERN antimatter factory, to the 6.8 TeV high-intensity proton beams that race through the Large Hadron Collider (LHC). The Super Proton Synchrotron (SPS) ring plays also a crucial role by slowly extracting protons at 400 GeV. These proton currents are then directed toward various targets, generating all sorts of secondary particle beams. These beams, in turn, become the foundation of a diverse fixed-target research program, enabling scientific exploration across a wide spectrum. Moreover, as CERN looks ahead to future studies involving electron-positron colliders, the development of cutting-edge diagnostics for low emittance, short electron pulses is also underway. This contribution serves as a snapshot, shedding light on the main R&D initiatives currently underway at CERN in the field of beam instrumentation.  
poster icon Poster MOP009 [13.654 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-IBIC2023-MOP009  
About • Received ※ 06 September 2023 — Revised ※ 07 September 2023 — Accepted ※ 13 September 2023 — Issue date ※ 17 September 2023
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MOP044 "Instantaneous" Lifetime Measurement in Storage Ring with Top-Up Injection injection, operation, storage-ring, electron 125
  • I. Pinayev
    BNL, Upton, New York, USA
  Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-SC0012704 with the U.S. Department of Energy
Top-up operation becomes routine in the light sources. The goal of the top-up operation is to keep the current of the circulating beam stable to avoid variations of the heat load on the beamline optics. It is also considered for the electron-ion collider to maintain the polarization of the electron beam. Frequent re-injection makes measurement of the beam lifetime very difficult if possible. Since, only part of the bunch train is refreshed during the injection cycle then the distribution of the bunch charges in the train has a characteristic saw-tooth distribution. The slope of saw tooth and step in the bunch charge distribution is defined by the lifetime and filling frequency. Both parameters can be used for the measurement. The data for processing can be obtained either from fast current transformer or from the raw ADC signal from beam position monitor. In this paper we present the theoretical considerations as well as experimental data from NSLS-II storage ring.
poster icon Poster MOP044 [0.284 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-IBIC2023-MOP044  
About • Received ※ 25 August 2023 — Revised ※ 10 September 2023 — Accepted ※ 13 September 2023 — Issue date ※ 18 September 2023
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TUP031 Beam Test of a Harmonic Kicker Cavity cavity, kicker, electron, controls 254
  • M.W. Bruker, J.M. Grames, J. Guo, J. Musson, S.A. Overstreet, G.-T. Park, T.E. Plawski, M. Poelker, R.A. Rimmer, H. Wang, C.M. Wilson, S. Zhang
    JLab, Newport News, Virginia, USA
  • M.H. Pablo, B.F. Roberts, D. Speirs
    Electrodynamic, Albuquerque, New Mexico, USA
  Funding: Work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under contract DE-AC05-06OR23177. Multi-Harmonic driver development supported by SBIR DE-SC0020566.
A harmonically resonant kicker cavity designed for beam exchange in a circulator cooler* was built and successfully tested at the Upgraded Injector Test Facility (UITF) at Jefferson Lab. This type of cavity is being considered for the injection scheme of the Rapid Cycling Synchrotron at the Electron-Ion Collider, where the spacing of neighboring bunches demands very short kicks. Operating with five transversely deflecting modes simultaneously that resonate at 86.6 MHz and consecutive odd harmonics thereof, the prototype cavity selectively deflects 1 of 11 electron bunches while leaving the others unperturbed. An RF driver was developed to synthesize phase- and amplitude-controlled harmonic signals and combine them to drive the cavity while also separating the modes from a field-probe antenna for RF feedback and dynamic tuning. Beam deflection was measured by sweeping the cavity phase; the deflection waveform agrees with expectations, having sub-nanosecond rise and fall times. No emittance increase is observed. Harmonically resonant cavities like the one described provide a new capability for injection and extraction at circulators and rings.
* G.T. Park et al., "Beam exchange of a circulator cooler ring with an ultrafast harmonic kicker", Phys. Rev. Accel. Beams 24, 061002
DOI • reference for this paper ※ doi:10.18429/JACoW-IBIC2023-TUP031  
About • Received ※ 14 July 2023 — Revised ※ 09 September 2023 — Accepted ※ 12 September 2023 — Issue date ※ 27 September 2023
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WE2C03 Beam Instrumentation Hardware Architecture for Upgrades at the BNL Collider-Accelerator Complex and the Future Electron Ion Collider instrumentation, electron, hardware, power-supply 308
  • R.J. Michnoff, L. DeSanto, C.M. Degen, S.H. Hafeez, R.L. Hulsart, J.P. Jamilkowski, J. Mead, K. Mernick, G. Narayan, P. Oddo, M.C. Paniccia, J.A. Pomaro, A.C. Pramberger, J.C. Renta, F. Severino
    BNL, Upton, New York, USA
  • D.M. Gassner
    Brookhaven National Laboratory (BNL), Electron-Ion Collider, Upton, New York, USA
  Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-SC0012704 with the U.S. Department of Energy.
Many beam instrumentation systems at Brookhaven National Laboratory¿s Collider-Accelerator complex are over 20 years old and in need of upgrading due to obsolete components, old technology and the desire to provide improved performance and enhanced capabilities. In addition, many new beam instrumentation systems will be developed for the future Electron Ion Collider (EIC) that will be housed in the existing Relativistic Heavy Ion Collider (RHIC) tunnel. A new BNL designed custom hardware architecture is planned for both upgrades in the existing facility and new systems for the EIC. A general-purpose carrier board based on the Xilinx Zynq Ultrascale+ System-on-Chip (SoC) will interface with a family of application specific daughter cards to satisfy the requirements for each system. This paper will present the general architecture that is planned, as well as details for some of the application specific daughter cards that will be developed.
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slides icon Slides WE2C03 [6.911 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WE2C03  
About • Received ※ 09 September 2023 — Revised ※ 11 September 2023 — Accepted ※ 13 September 2023 — Issue date ※ 27 September 2023
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)