Presents : A. Beynel, Z. Arenas, E. Grenier, I. Zarei, A. Boucherie, S. Marzari, J. Vollaire (partially)

• the topographic measurements of the hill after the construction will be done, it's already done the actual shape on top of the hill (V. Sanchez)
• during earth removal, zoning with stakes is nessessary layer after layer to define limit of the activated earth area (V. Sanchez february 2026)
• it will be necessary to scan the position of the 2 Helium tanks with connected pipes and valves attached to it (during next yets 2024-25)
• it will be necessary to scan the buildings, boris tubes etc... after the earth and dumps removal (april 2026)
• For scans the contact person is Alban Vieille BE/GM/ASG
• an alignment check after the works will be done for the 2 Frontends GPS and HRS (october 2027)
• if possible the alignment of the Robot rails into the Target area 838 will be monitored during the wortks on top of the roof (during 2026)
  • The chimical fixation of the rails has to be assesed due to the recived level of radiations 
• An internal scan will be done after the new building construction (May 2027)
• 2 temporary holes will be useful to check coincidence between Target area and Separator area alignment systems (october 2027)
• Before the shielding installation, it will be necessary to trace references on the internal floor / walls to help the "calepinage" (june 2027)

Kind regards,

S. Marzari