• K. Foraz, J. Coupard, S. Grillot
  CERN, Geneva

The first LHC shut-down start­ed in fall 2008, just after the in­ci­dent on the 19th of Septem­ber 2008. In ad­di­tion to the typ­i­cal work of a shut-down, a large num­ber of in­ter­ven­tions, re­lat­ed to the 'con­sol­i­da­tion after the in­ci­dent' were per­formed in the LHC loop. More­over the amount of work in­creased dur­ing the shut-down, fol­low­ing the rec­om­men­da­tions and con­clu­sions of the dif­fer­ent work­ing groups in charge of the safe­ty of the per­son­nel and of the ma­chine. This paper will give an overview of the work per­formed, the or­ga­ni­za­tion of the co­or­di­na­tion, em­pha­siz­ing the new safe­ty risks (elec­tri­cal and cryo­genic), and how the in­ter­ven­tions were im­ple­ment­ed in order to en­sure both the safe­ty of per­son­nel and a min­i­mized time win­dow.