1. Discussion points TBM meeting 23/09/2015

2. Updates Global 3D assembly updated, no severe problems/clashes T1 RF network dimensions updated WPS arms machined Mock-ups under machining, brazing starts next week

3. Adjustable DBQ support Supports for T0 ready The rotation of the magnets has some implications (adjusting knobs on the inside) Some modifications might be required – investigation needed Design for T1 tricky to implement due to Epucret design

4. Adjustable V-supports Finalised design and drawings Adequate for proof of concept, still a bit rough Fixed supports already on Epucret Stay with fixed supports (both V and DBQ) and organise a side project, perhaps on second Epucret girder with dummy loads?

5. BPM deletion drift tube Clash 15mm Bellow compression 7mm Drift tube play in magnet 5mm If decided to be replaced, needs to be done before magnet assembly 5mm

6. Vacuum ‘Baseline’ design almost ready Vacuum forces are significant Shall we proceed with baseline design or launch a design project for force cancelation? 2 quick proposals

7. MBQ support Only piece missing before floor drilling Concrete block needs to be replaced Shall we assume the base plate as reference and produce steel support block?

8. U-clamps For MB: In principle CLEX design can be used Compatibility check pending For DB: Same design as T0.1 Probably not compatible with adjustable V-supports Redesign needed? Mysterious additional support in CLEX

9. DAQ #Description 1SAS 1 water in temperature 2SAS 1 component temperature 3SAS 1 water out temperature 4SAS 2 water in temperature 5SAS 2 component temperature 6SAS 2 water out temperature 7SAS 3 water in temperature 8SAS 3 component temperature 9SAS 3 water out temperature 10SAS 4 water in temperature 11SAS 4 component temperature 12SAS 4 water out temperature 13PETS 1 in 14PETS 1 out / 2 in 15PETS 2 out 16DBQ 1 in 17DBQ 1 component 18DBQ 1 out/ 2 in 19DBQ 2 component 20DBQ 2 out 21Ambient 1 22Ambient 2 23Spare 1 24Spare 2 25Spare 3 26Spare 4 27Spare 5 28Spare 6 29Spare 7 30Spare 8 31Spare 9 32Spare 10 According to test plan, 22 temperature sensors are foreseen for each TBM Current architecture (NI cDAQ) allows 32 sensors per box Remaining signals (flow meters, control valves, heaters) will be connected to 4 th electronics box Total of 4 boxes, connected via USB to central PC Room for expansion Optional upgrade to cRIO system with embedded CPU for increased robustness TBM 1TBM 2TBM 3 Cooling rack PC 32x Temp sensors Flow meter Control Valve Heater Usb x4

10. Next tasks Critical path: WPS arms assembly T1 MB cradles machining Girders fiducialisation Floor drilling Girders installation In parallel: Cooling rack assembly – already started PETS T0.2 fiducialisation