Author: Touzé, T.
Paper Title Page
MOPO030 Theoretical and Practical Feasibility Demonstration of a Micrometric Remotely Controlled Pre-alignment System for the CLIC Linear Collider 547
 
  • H. Mainaud Durand, M. Anastasopoulos, N.C. Chritin, J. Kemppinen, M. Sosin, S. griffet
    CERN, Geneva, Switzerland
  • T. Touzé
    ENSTA, Brest, France
 
  The ac­tive pre-align­ment of the Com­pact Lin­ear Col­lid­er (CLIC) is one of the key points of the pro­ject: the com­po­nents must be pre-aligned w.r.t. to a straight line with­in a few mi­crons over a slid­ing win­dow of 200 m, along the two linacs of 20 km each. The pro­posed so­lu­tion con­sists of stretched wires of more than 200 m, over­lap­ping over half of their length, which will be the ref­er­ence of align­ment. Wire Po­si­tion­ing Sen­sors (WPS), cou­pled to the sup­ports to be pre-aligned, will per­form pre­cise and ac­cu­rate mea­sure­ments with­in a few mi­crons, w.r.t. these wires. A mi­cro­met­ric fidu­cial­i­sa­tion of the com­po­nents and a mi­cro­met­ric align­ment of the com­po­nents on com­mon sup­ports will make the strat­e­gy of pre-align­ment com­plete. In this paper, the glob­al strat­e­gy of ac­tive pre-align­ment is de­tailed and il­lus­trat­ed by the lat­est re­sults demon­strat­ing the fea­si­bil­i­ty of the pro­posed so­lu­tion.