MOBO —  Overview II   (09-Sep-19   11:00—12:50)
Chair: O.R. Jones, CERN, Meyrin, Switzerland
Paper Title Page
MOBO01 Overview of the Beam Instrumentation and Commissioning Results from the BNL Low Energy RHIC Electron Cooling Facility -1
  • T.A. Miller, Z. Altinbas, D. Bruno, J.C. Brutus, M.R. Costanzo, L. DeSanto, C. Degen, K.A. Drees, A.V. Fedotov, W. Fischer, J.M. Fite, D.M. Gassner, X. Gu, J. Hock, R.L. Hulsart, P. Inacker, J.P. Jamilkowski, D. Kayran, J. Kewisch, C. Liu, K. Mernick, R.J. Michnoff, M.G. Minty, S.K. Nayak, L.K. Nguyen, P. Oddo, R.H. Olsen, M.C. Paniccia, W.E. Pekrul, I. Pinayev, V. Ptitsyn, V. Schoefer, S. Seletskiy, H. Song, A. Sukhanov, P. Thieberger, J.E. Tuozzolo, D. Weiss
    BNL, Upton, Long Island, New York, USA
  Funding: Work supported by Brookhaven Science Associates, LLC under Con-tract No. DE-AC02-98CH10886 with the U.S. Department of Energy
The Low Energy RHIC Electron Cooling (LEReC) facility at BNL demonstrated, for the first time, cooling of ion beams using a bunched electron beam from an SRF accelerating cavity and photoinjector. LEReC is planned to be operational to improve the luminosity of the Beam Energy Scan II physics program in RHIC in the following two years. In order to establish cooling of the RHIC Au ion beam using a 20 mA, 1.6 MeV bunched electron beam; absolute energy, angular and energy spread, trajectory and beam size were precisely matched. A suite of instrumentation was commissioned that includes a variety of current transformers, capacitive pick-up for gun high voltage ripple monitor, BPMs, transverse and longitudinal profile monitors, multi-slit and single-slit scanning emittance stations, time-of-flight and magnetic field related energy measurements, beam halo & loss monitors and recombination monitors. The commissioning results and performance of these systems are described, including the latest design efforts of high-power electron beam transverse profile monitoring using a fast wire scanner, residual gas beam induced fluorescence monitor, and Boron Nitride NanoTube (BNNT) screen monitor
slides icon Slides MOBO01 [17.119 MB]  
MOBO02 Beam Instrumentation at the Fermilab IOTA Ring -1
  • N. Eddy, D.R. Broemmelsiek, K. Carlson, D.J. Crawford, J.S. Diamond, D.R. Edstrom, B.J. Fellenz, M.A. Ibrahim, J.D. Jarvis, V.A. Lebedev, S. Nagaitsev, J. Ruan, J.K. Santucci, A. Semenov, V.D. Shiltsev, G. Stancari, A. Valishev, D.C. Voy, A. Warner
    Fermilab, Batavia, Illinois, USA
  • N. Kuklev, I. Lobach
    University of Chicago, Chicago, Illinois, USA
  • S. Szustkowski
    Northern Illinois University, DeKalb, Illinois, USA
  Funding: This manuscript has been authored by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics.
The Integrable Optics Test Accelerator (IOTA) is a storage ring at the end of the Fermilab Accelerator Science and Technology (FAST) facility. The complex is intended to support accelerator R&D for the next generation of particle accelerators. The IOTA ring is currently operating with 150 MeV electrons injected from the FAST Linac and will also receive 2.5 MeV protons from the IOTA Proon Injector currently be installed. The current instrumentation and results along from the first electron commissioning run will be presented along with future plans.
slides icon Slides MOBO02 [47.588 MB]  
Overview of LIPAc Beam Instrumentation for the Initial Accelerator Commissioning  
  • D. Jiménez-Rey, J. Castellanos, J.M. García, D. Gavela, A. Ibarra, A. Marqueta, L.M. Martínez, J. Mollá, I. Podadera, A. Ros, R. Varela, V. Villamayor
    CIEMAT, Madrid, Spain
  • P. Abbon, B. Bolzon, T. Chaminade, J.F. Denis, A. Gaget
    CEA-DRF-IRFU, France
  • T. Akagi, K. Kondo, K. Sakamoto, Y. Shimosaki, M. Sugimoto, S. Takahiro
    QST, Aomori, Japan
  • L. Bellan, M. Comunian, E. Fagotti, F. Grespan, M. Poggi, F. Scantamburlo
    INFN/LNL, Legnaro (PD), Italy
  • P. Cara, A. Marqueta
    Fusion for Energy, Garching, Germany
  • Y. Carin, H. Dzitko, A. Jokinen, I.M. Moya
    F4E, Germany
  • J. Marroncle
    CEA-IRFU, Gif-sur-Yvette, France
  • O. Nomen
    IREC, Sant Adria del Besos, Spain
  • A. Rodríguez Páramo
    ESS Bilbao, Zamudio, Spain
  Funding: This work has been supported by the Spanish Government in the frame of the Broader Approach Agreement
The commissioning of the high power deuterium accelerator of Linear IFMIF Prototype Accelerator, LIPAc, is presently under progress. During the so-called Phase B, the accelerator is operating with a high current pulsed proton and deuteron. The Phase B operation has the goals of fulfilling an exhaustive characterization of equipment and machine parameters in pulsed beam operation up to 5 MeV and 125 mA at Low Duty Cycle. The LIPAc beam diagnostics are aimed to demonstrate at this first stage of the commissioning the correct performance of the accelerator and are used for a complete characterization of the accelerator matching and tuning parameters. The characterization and calibration of beam diagnostics developed are providing relevant feedback of the accelerator operation. Measurements of the centroid position, beam profile, energy, intensity or emittance have been acquired and analyzed. The experimental results gathered have been compared with beam dynamics simulations. In this contribution, an overview of the main results provided by the beam diagnostics during Phase B operation in proton will be shown, together with the status of each instrument.
slides icon Slides MOBO03 [13.512 MB]  
MOBO04 Characterization and First Beam Loss Detection with One ESS-nBLM System Detector -1
  • L. Segui, H. Alves, S. Aune, J. Beltramelli, Q. Bertrand, M. Combet, M. Kebbiri, Ph. Legou, O. Maillard, A. Marcel, T. Papaevangelou
    CEA-IRFU, Gif-sur-Yvette, France
  • A. Dano-Daguze, D. Desforge, F. Gougnaud, T.J. Joannem, C. Lahonde-Hamdoun, P. Le Bourlout, Y. Mariette, J. Marroncle, V. Nadot, G. Tsiledakis
    CEA-DRF-IRFU, France
  • I. Dolenc Kittelmann, T.J. Shea
    ESS, Lund, Sweden
  The monitoring of losses is crucial in any accelerator. In the new high intensity hadron facilities even low energy beam can damage or activate the materials so the detection of small losses in this region is very important. A new type of neutron beam loss monitor has been developed specifically targeting this region, where only neutrons and photons can be produced and where typical BLM, based on charged particle detection, could not be appropriate because of the photon background due to the RF cavities. The BLM proposed is based on gaseous Micromegas detectors, designed to be sensitive to fast neutrons and with little sensitivity to photons. Development of the detectors presented here has been done to fulfil the requirements of ESS and they will be part of the ESS-BI systems. The detector has been presented in previous editions of the conference. Here we focus on the neutron/gamma rejection with the final FEE and in the first operation of one of the modules in a beam during the commissioning of LINAC4 (CERN) with the detection of provoked losses and their clear separation from RF gammas. The ESS-nBLM system is presented in this conference in a separate contribution.  
slides icon Slides MOBO04 [7.609 MB]