Author: Lee, Y.
Paper Title Page
WEPVA138 The RaDIATE High-Energy Proton Materials Irradiation Experiment at the Brookhaven Linac Isotope Producer Facility 3593
 
  • K. Ammigan, P. Hurh, R.M. Zwaska
    Fermilab, Batavia, Illinois, USA
  • A. Amroussia, C.J. Boehlert
    Michigan State University, East Lansing, Michigan, USA
  • M.S. Avilov, F. Pellemoine
    FRIB, East Lansing, USA
  • M. Calviani, E. Fornasiere, A. Perillo-Marcone, C. Torregrosa
    CERN, Geneva, Switzerland
  • A.M. Casella, D.J. Senor
    PNNL, Richland, Washington, USA
  • C.J. Densham
    STFC/RAL, Chilton, Didcot, Oxon, United Kingdom
  • T. Ishida, S. Makimura
    KEK, Ibaraki, Japan
  • V.I. Kuksenko, S.G. Roberts
    University of Oxford, Oxford, United Kingdom
  • Y. Lee, T.J. Shea, C.A. Thomas
    ESS, Lund, Sweden
  • L.F. Mausner, D. Medvedev, N. Simos
    BNL, Upton, Long Island, New York, USA
  • E. Wakai
    KEK/JAEA, Ibaraki-Ken, Japan
  
  Funding: Work supported by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy.
The RaDIATE collaboration (Radiation Damage In Accelerator Target Environments) was founded in 2012 to bring together the high-energy accelerator target and nuclear materials communities to address the challenging issue of radiation damage effects in beam-intercepting materials. Success of current and future high intensity accelerator target facilities requires a fundamental understanding of these effects including measurement of materials property data. Toward this goal, the RaDIATE collaboration organized and carried out a materials irradiation run at the Brookhaven Linac Isotope Producer facility (BLIP). The experiment utilized a 181 MeV proton beam to irradiate several capsules, each containing many candidate material samples for various accelerator components. Materials included various grades/alloys of beryllium, graphite, silicon, iridium, titanium, TZM, CuCrZr, and aluminum. Attainable peak damage from an 8-week irradiation run ranges from 0.03 DPA (Be) to 7 DPA (Ir). Helium production is expected to range from 5 appm/DPA (Ir) to 3,000 appm/DPA (Be). The motivation, experimental parameters, as well as the post-irradiation examination plans of this experiment are described. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-WEPVA138  
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THPVA065 Working Concept of 12.5 kW Tuning Dump at ESS 4591
 
  • Y. Lee, M. Eshraqi, S. Ghatnekar Nilsson, Y.I. Levinsen, R. Miyamoto, S. Molloy, M. Möller, A. Olsson, T.J. Shea, C.A. Thomas, M. Wilborgsson
    ESS, Lund, Sweden
  • F. Sordo
    ESS Bilbao, Zamudio, Spain
  
  The linac system at the European Spallation Source (ESS) will deliver 2~GeV protons at 5~MW beam power. The accelerated protons from the linac will be transported to the rotating tungsten target by two bending magnets. A tuning beam dump will be provided at the end of the linac, downstream of the first bending magnet. This tuning dump shall be able to handle at least 12.5 kW of beam power. In this paper, we present the working concept of the tuning dump. The impact of the proton beam induced material damage on the operational loads and service lifetime of the tuning dump is analysed. A number of particle transport and finite-element simulations are performed for the tuning beam modes.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA065  
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