1. The WA105 17m3 LArCryostat pre-experience M.Ne

2. Status Tender done for the membrane part, 1 German firm selected A lot of time wasted to renegotiate the price and the deliverables Order still not out because the various lawyers are still discussing some final details Engineering of the warm container ongoing. Firms are now consulted Goal to have it installed by March 2015

3. Cl. Room

5. Some dimensions The final inner volume is 3*4.8*2.4 (height*length*width): 35m 3. The volume of LAr stored is 1.5*4.8*2.4: 17m 3. Tank capacity (LAr volume) : 17 m 3 LAr level : 1.5 m from bottom Minimum liquid level for pump restart : 0.7 m (indicative) Residual Heat Input (RHI) : 5 W/m2 Insulation density : 70 kg/m 2 (PU Aged HFC245) Insulation thickness : 1 m (as computed by GTT in order to fulfill the required RHI) BOR : 0.069 % (Calculated for indication) Design pressure : Max 1050 mbar / Min 950 mbar Design / operating temperature : 77 K / 87-89K

6. COST WE have just contracted the membrane cryostat and not the warm container Costs: engineering, firm overhead, licences : 150Keuro ~ 190 K$ material (including transport) : 127 Keuro ~ 163 K$ installation at CERN + tests : 291 Keuro ~ 375 K$ Assuming a surface (without cover) of ~ 55mq  Material 3K$/m2  Installation 6.8K$/m2

7. Documents: Technical specs: https://edms.cern.ch/document/1365672 https://edms.cern.ch/document/1369869

8. Bill of material

12. Outer structure See D.Mladenov presentation:

13. The outer structure Overview Steel profiles bolted and welded together The internal dimensions 6.5m x 4.2m x 4.1m (L x W x H) Weight - 12T Modular Design i.e. allows possibilities for future extension 13

14. FEM AnalysEs Self weight Cap weight LAr weight Over pressure 14

15. Transportation 15

16. Production Manufacturing Drawings Companies contacted Transport studies 16