1. 14 February 2007 G. Bohner, R. Bonnefoy, M. Crouau, P. Jacquet, C. Lacan, J. Lecoq, S. Monteil, P. Perret, G. Reinmuth, K. Suchorski LPC Clermont PS Very-Front-End Status & Installation

2. VFE Boards MAPMT block assembly: MAPMT + VFE (3) boards + cooling system (radiator and thermoconductor pad): Final tests:  Ok : 103  rejected: 2  to do: 14  burnt: 1! MAPMT test bench Packaging for transport

3. Regulator Boards  Production received and tested:  No problems!  All ok  Ready!

4. VFE LV patch panel Racks L3B03 L3B13 LV Wiener PS PS+SPD PS crate PS: 50 VFE 150 A 51 cables

5. PS VFE LV Patch Panel 450 390 73 TURBINE 83 60 390 305 Close positon (standard) Open positon

6. PS VFE LV Patch Panel Rack L3B03

7. PS VFE LV Patch Panel

8. PCB and PP under production

9. Have been installed:  Pipes, radiators inside boxes  Distribution circuits and water sensor system along boxes PS/SPD Cooling System

10. Have been installed:  Lateral pipe PS C side (yesterday by Rustem team) Still to install:  lateral pipes + tests PS/SPD Cooling System Still to install & design:  Distribution circuits from bunker to PS/SPD (Annecy/CERN)

11. PS VFE Installation and tests  MAPMT blocks + REG + cables + optical bundles and µ-metal  Procedure and training done at lab ! 8 cables types:  signal  HV  LV (to ps)  LV (REG - VFE)  Temperature sensors (inside box)  Temperature  DSS: thermoswitch  DSS: water sensor  + LED monitoring x16 boxes

12. PS VFE Installation and tests  MAPMT blocks + REG + cables + optical bundles and µ-metal  Procedure and training done at lab ! 8 cables types:  signal  HV  LV (to ps)  LV (REG - VFE)  Temperature sensors (inside box)  Temperature  DSS: thermoswitch  DSS: water sensor  + LED monitoring x16 boxes

13. 8 cables types:  signal  HV  LV (to ps)  LV (REG - VFE)  Temperature sensors (inside box)  Temperature  DSS: thermoswitch  DSS: water sensor  + LED monitoring x16 boxes PS VFE Installation and tests  MAPMT blocks + REG + cables + optical bundles and µ-metal  Procedure and training done at lab !

14. PS VFE Installation and tests  Very difficult to detect a cable connexion mistake for VFE (no help from LED)!  A specific system is being designed:  Light sent individually on each MAPMT pixel with a dedicated optical bundle and LED system (similar to some built for optical bundles tests)  Read-out done with a FE board  A lot of constraints on installation procedure!  We assume that LED/optical bundles checked previously (cf Evgueni)  Cable connexions have to be checked before closing of the box:

15. PS VFE Installation and tests Easier to check visually!  For other cables: HV, LV, … we’d like to have the final system to plug cables at their final location on their crate (platform) when performing tests Front panel colour = cable colour

16. Conclusion  PS/SPD cooling system has been installed (some tests still to do)  system from detector to main manifold to design  VFE and REG boards are ok and ready to be installed  Installation procedure has been tested at lab  Connection check system under design and test  LED monitoring cables (interconnection system needed)  PS LV patch panel is under fabrication  Temperature readout with ELMB:  Done and tested  ECS to be done  Ready to start end of February when cable installation finished (C side) and access granted...