Keyword: heavy-ion
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MOPP005 Radiation hardness investigation of Zinc oxide fast scintillators with relativistic heavy ion beams. radiation, detector, site, target 70
 
  • P. Boutachkov, A. Reiter, M. Saifulin, B. Walasek-Höhne
    GSI, Darmstadt, Germany
  • E.I. Gorokhova
    GOI, St Petersburg, Russia
  • P. Rodnyi, I.D. Venevtsev
    SPbPU, St. Petersburg, Russia
 
  At GSI ion beams of many elements, from H up to U, are produced with energy as high as 4.5 GeV/u with the SIS-18 synchrotron. For absolute beam intensity and micro-spill structure measurements a BC400 organic scintillator is used. Due to the low radiation hardness of this material, alternative inorganic scintillators like ZnO:Ga and ZnO:In were investigated. The properties and possible application of these novel radiation hard fast scintillators will be discussed. Their response to Sn, Xe and U ion beams will be reported.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2019-MOPP005  
About • paper received ※ 04 September 2019       paper accepted ※ 09 September 2019       issue date ※ 10 November 2019  
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MOPP006 Commissioning of the Beam Loss Monitoring system for the HADES beam-line at GSI detector, proton, operation, simulation 73
 
  • P. Boutachkov, S. Damjanovic, M. Sapinski, B. Walasek-Höhne
    GSI, Darmstadt, Germany
 
  The High Acceptance Di-Electron Spectrometer experiments at GSI (HADES) require high-intensity heavy ion beams. Monitoring and minimization of the beam losses are critical for the operation at the desired beam intensities. FAIR-type Beam Loss Monitor (BLM) system based on sixteen plastic scintillator detectors is installed along the beam line from the SIS-18 synchrotron to the experiment location. The detectors are used in counting mode, with maximum counting rate of order of 20 MHz. The system has been commissioned during the 2018 beam time. Details on the detector setup, its calibration procedure and how it can be used for quantitative beam loss determination are presented.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2019-MOPP006  
About • paper received ※ 04 September 2019       paper accepted ※ 08 September 2019       issue date ※ 10 November 2019  
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TUCO04 Longitudinal Phase Space Reconstruction for the Heavy Ion Accelerator HELIAC cavity, linac, emittance, proton 261
 
  • S. Lauber, K. Aulenbacher, W.A. Barth, C. Burandt, F.D. Dziuba, V. Gettmann, T. Kürzeder, J. List, M. Miski-Oglu
    HIM, Mainz, Germany
  • K. Aulenbacher, W.A. Barth, C. Burandt, F.D. Dziuba, P. Forck, V. Gettmann, M. Heilmann, T. Kürzeder, S. Lauber, J. List, M. Miski-Oglu, A. Rubin, T. Sieber, S. Yaramyshev
    GSI, Darmstadt, Germany
  • K. Aulenbacher
    KPH, Mainz, Germany
  • F.D. Dziuba, S. Lauber, J. List
    IKP, Mainz, Germany
  • H. Podlech, M. Schwarz
    IAP, Frankfurt am Main, Germany
 
  At the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, Germany, a prototype cryomodule (Advanced Demonstrator) for the superconducting (SC) continuous wave (CW) Helmholtz Linear Accelerator (HELIAC) is under construction. A transport line, comprising quadrupole lenses, rebuncher cavities, beam correctors and sufficient beam instrumentation has been built to deliver the beam from the GSI 1.4 MeV/u High Charge Injector (HLI) to the Advanced Demonstrator, which offers a test environment for SC CW multigap cavities. In order to achieve proper phase space matching, the beam from the HLI must be characterized in detail. In a dedicated machine experiment the bunch shape has been measured with a non destructive bunch shape monitor (BSM). The BSM offers a sufficient spatial resolution to use it for reconstruction of the energy spread. Therefore, different bunch projections were obtained by altering the voltage of two rebunchers. These measurements were combined with dedicated beam dynamics simulations using the particle tracking code Dynamion. The longitudinal bunch shape and density distribution at the beginning of the matching line could be fully characterized.  
slides icon Slides TUCO04 [1.810 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2019-TUCO04  
About • paper received ※ 30 August 2019       paper accepted ※ 08 September 2019       issue date ※ 10 November 2019  
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TUPP027 Development of a Precision Pepper-Pot Emittance Meter emittance, LEBT, background, alignment 364
 
  • G. Hahn
    PAL, Pohang, Republic of Korea
  • J.G. Hwang
    HZB, Berlin, Germany
 
  A fast single-shot emittance measurement device, a pepper-pot emittance meter, was developed. In the manufacturing stage, in order to guarantee the quality of the holes in the pepper-pot mask, we fabricated two mask using different methods that are made of phosphor bronze by optical lithography process and SUS by laser cutting. After the comparison of each SEM (Scanning Electron Microscope) measurement data, the phosphor bronze mask fabricated by lithography was found to be suitable. The rotation and translation matrices are applied on all images obtained by the camera to mitigate the relative angular misalignment errors between MCP, mirror and CMOS camera with respect to the mask. By applying the instrument in the NFRI ion source, the four-dimensional phase-space distribution of ion beams is retrieved and compared with the result measured by using a slit-scan method. In this paper, we describe the fabrication process, data analysis method and beam measurement results of the developed emittance meter.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2019-TUPP027  
About • paper received ※ 09 September 2019       paper accepted ※ 10 September 2019       issue date ※ 10 November 2019  
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TUPP030 Analysis of Heavy Ion Irradiation Field Nonuniformity Using Track Detectors during Electronic Components Testing radiation, detector, electron, experiment 376
 
  • A.S. Bychkov, P.A. Chubunov, A.S. Konyukhov, A.A. Pavlov
    ISDE, Moscow, Russia
 
  Determining the applicability of electronic components in spacecrafts involves conducting the tests using heavy ions. The Branch of URSC - ISDE and FLNR of JINR have created and operate the only in Russia test facilities based on the FLNR JINR accelerators allowing for heavy ion irradiation over a large area up to 200x200 mm. During simultaneous irradiation of several electronic components with heavy ions, it is necessary to ensure the device under test (DUT) location within the area of minimal nonuniformity. This problem is being solved by pretest determination of the irradiation field nonuniformity for each type of ion (Ne, Ar, Kr, Xe, Bi) and nonuniformity validation every 12 hours. Fluence is determined by a metrologically certified method using track detectors. In order to visualize the irradiation field nonuniformity, additional experiments were carried out with the irradiation of track detec-tors covering the entire irradiation area for each ion species. Based on the data obtained, a map of nonuniformity was plotted, which allows us to conclude that nonuniformity does not exceed 10% in the most frequently used areas of the irradiation field (100x150 mm) during SEE testing.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2019-TUPP030  
About • paper received ※ 04 September 2019       paper accepted ※ 10 September 2019       issue date ※ 10 November 2019  
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TUPP047 Ionization Profile Monitor Design and Experiments in HIRFL-CSR electron, experiment, simulation, storage-ring 441
 
  • H.M. Xie, Z. Du, K. Gu, X.J. Hu, L. Jing, Z.X. Li, L.J. Mao, Y. Wei, J.X. Wu, Y. Zhang, G. Zhu
    IMP/CAS, Lanzhou, People’s Republic of China
 
  Funding: Supported by the National Natural Science Foundation of China (Nos. 11805250
To meet the needs of real-time profile monitoring, injection match optimization, transverse cooling mechanism research in Cooling Storage Ring of Heavy Ion Research Facility of Lanzhou (HIRFL-CSR), and the profile measurement of future intense facilities like High Intensity Heavy-ion Accelerator Facility (HIAF) and China Initiative Accelerator Driven System (CiADS) in Huizhou China, some IPM research and experiments has been proceed since 2013. In 2016, the first IPM was developed with MCPs, phosphor screen and camera acquisition system for vertical profile monitoring in HIRFL-CSRm. Then another horizontal IPM with new framework and less field distortion was also deployed in CSRm at 2018 summer. Besides, two more IPMs will be installed in HIRFL-CSRe during next summer maintenance. This paper mainly presents the horizontal IPM design concerns, HV settings influence, some experiment anomalies, as well as experiments for transverse electron cooling and normal operation mode orbit variation at HIRFL-CSR in December 2018.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2019-TUPP047  
About • paper received ※ 04 September 2019       paper accepted ※ 09 September 2019       issue date ※ 10 November 2019  
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