Author: Fumey, S.
Paper Title Page
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.