CTA Reunion de groupe LAPP 01 12 2014

CTA Reunion de groupe LAPP, 01 -12 -2014

Prototypes waiting for test slot @MPI Prototypes built by Lorima Arrived @MPI since May Waiting for test slot Each month lost is less time for improvements in case on non positive test conclusion ? Consecutive tube junction 23/09/2014 CSS / dish interface part Catania Meeting G. Lamanna 2

Les surprises du prototype manchon Pincement du manchon lors de son ouverture • Largeur de rainure longitudinale insuffisante • Au serrage contact sur lèvres du manchon Pincement du manchon lors de son ouverture Un petit usinage maison grâce à Laurent et hop dans la caisse ! 23/09/2014 Catania Meeting G. Lamanna 3

CSS / dish interface part

Consecutive tube junction

Final definition of details Ø Cables and pipes supports defined • Glass fiber part glued on CSS • Electrical cables fixation • Cooling pipes fixation Ø Teflon plate supports defined • Glass fiber part glued on Camera frame • 400 mm x 600 mm reflector foreseen 23/09/2014 Catania Meeting G. Lamanna 6

Camera frame : Key values Camera frame deformation (@ parking position) Shiming (@ parking position) Rails mounting (@ parking position) 3140 mm 800 mm > 3140 mm

Carlos Diaz’s rail system La définition de la fixation de la camera dans le frame a convergé Carlos’ slide (Padova) 2 - Turn to clamp in desired position 1 - Turn to focus

Worries about shocks on CF parts Carbon fibers structure are very sensitive to shocks : • CF tubes are monolithic and thick : limited worry • CF ropes are 10 mm Φ and of prime importance : be careful ! • Camera frame CF skins are extremely thin : be very careful !! Extreme care & protections are needed during maintenance ! Possibilité de réaliser des test expérimentaux à l’étude actuellement

Mounting : Civil work & tooling Ø Installation procedure on site will require : crane Ø CSS elements assembly on ground crane Ø Lifting of complete CSS Ø Installation on dish Civil work to be foreseen for trestel fixation Mounting area close enough to mounted dish Indeed : crane cannot move once CSS is lifted ! LAPP is going to start studying transportation and mounting tooling end of this year 23/09/2014 Catania Meeting G. Lamanna 10

Access tower definition close enough to mounting mounted dish LAPP is going to start. Mounting studyingarea transportation and tooling end of this year Indeed : crane cannot move once CSS is lifted ! 23/09/2014 Catania Meeting G. Lamanna 11

Access tower definition 23/09/2014 Catania Meeting G. Lamanna 12

Access tower definition 23/09/2014 Catania Meeting G. Lamanna 13