Author: Pardons, A.
Paper Title Page
TUPS058 HiRadMat: A New Irradiation Facility for Material Testing at CERN 1665
 
  • I. Efthymiopoulos, S. Evrard, H. Gaillard, D. Grenier, C. Heßler, M. Meddahi, A. Pardons, C. Theis, P. Trilhe, H. Vincke
    CERN, Geneva, Switzerland
  • N. Charitonidis
    EPFL, Lausanne, Switzerland
  
  Hi­Rad­Mat (High Ir­ra­di­a­tion to Ma­te­ri­als) is a new fa­cil­i­ty under con­struc­tion at CERN de­signed to pro­vide high-in­ten­si­ty pulsed beams to an ir­ra­di­a­tion area where ma­te­ri­al sam­ples as well as ac­cel­er­a­tor com­po­nent as­sem­blies can be test­ed. The fa­cil­i­ty uses a 440 GeV pro­ton beam ex­tract­ed from the CERN SPS with a pulse length of 7.2 μs,  to a max­i­mum pulse en­er­gy of 3.4 MJ. In ad­di­tion to pro­tons, ion beams with an en­er­gy of  173.5 GeV/nu­cle­on and a total pulse en­er­gy of 21 kJ can be used. The fa­cil­i­ty is ex­pect­ed to be­come op­er­a­tional in au­tumn 2011. The first tests will in­clude can­di­date ma­te­ri­als and pro­to­type as­sem­blies of LHC col­li­ma­tors fore­seen to op­er­ate at the ul­ti­mate LHC beam pow­ers. Ex­per­i­ments on beam win­dows and high-pow­er tar­get ma­te­ri­al op­tions, such as tung­sten pow­der, are also planned. The paper will de­scribe the lay­out and de­sign pa­ram­e­ters for the fa­cil­i­ty and the way ex­per­i­ments can be op­er­at­ed. Ideas on on­line and post-ir­ra­di­a­tion tests and in­stru­men­ta­tion will be out­lined.  
 
TUPS059 SPS WANF Dismantling: A Large Scale-Decommissioning Project at CERN 1668
 
  • S. Evrard, Y. Algoet, N. Conan, D. DePaoli, I. Efthymiopoulos, S. Fumey, H. Gaillard, J.L. Grenard, D. Grenier, A. Pardons, E. Paulat, Y.D.R. Seraphin, M. Tavlet, C. Theis, H. Vincke
    CERN, Geneva, Switzerland
  
  The op­er­a­tion of the SPS (Super Pro­ton Syn­chrotron) West Area Neu­tri­no Fa­cil­i­ty (WANF) was halt­ed in 1998. In 2010 a large scale-de­com­mis­sion­ing of this fa­cil­i­ty was con­duct­ed. Be­sides CERN’s com­mit­ment to re­move non-op­er­a­tional fa­cil­i­ties, the ad­di­tion­al mo­ti­va­tion was the use of the in­stal­la­tion (un­der­ground tun­nels and avail­able in­fras­truc­ture) for the new Hi­Rad­Mat fa­cil­i­ty, which is de­signed to study the im­pact of high-in­ten­si­ty pulsed beams on ac­cel­er­a­tor com­po­nents and ma­te­ri­als. The re­moval of 800 tons of ra­dioac­tive equip­ment and the waste man­age­ment ac­cord­ing to the ALARA (As Low As Rea­son­ably Achiev­able) prin­ci­ples were two major chal­lenges. This paper de­scribes the so­lu­tions im­ple­ment­ed and the lessons learnt con­firm­ing that the de­com­mis­sion­ing phase of a par­ti­cle ac­cel­er­a­tor must be care­ful­ly stud­ied as from the de­sign stage.