1. Upgrade activities DT-LHCb coordination meeting 14 March 2016

2. Project contribution of DT to LHCb 10 colleagues (7.6 FTEs), working on a variety of projects. In addition some fellows and students working on LHCb are in DT Work Package summarizing contribution under preparation MARS exercise has been helpful to shape our contribution further 2

3. VELO and CO 2 cooling Raphael Dumps : Continue work on VELO cooling safety system – reproduce a dummy CO2 distribution line for the detectors hybrids – Analyse: cooling stability, pressure drop, Safety system behaviour +…. Beam test (VELOpix hybrid under vacuum …) – Adapt the VELO telescope for this new functionality, – construction of a light vacuum box for DUT (cooling -20celsius + …..) RF foil leak test stand. – Testing the leak rate of the new RF foil  To be seen with Massi and NIKHEF 3

4. Integration work for the UT Joao, Olivier,Francois, Burkhard Continuation of the engineering design for components of the UT, including – the UT box and the beam-pipe interface – the frames for stave mounting, taking into account the constraints in relation to alignment  The EDR for the UT box and frames is scheduled for June 6 or 13 this year 4

5. Prototype box A prototype box is under construction – The dimensions are: x = 2 x 430mm ; y =500mm ; z = 400mm – The main motivation of the prototype is to study technical details of the joints in order to insure tightness, integration of the copper net to ensure Faraday cage behaviour Test two options for the beam-pipe interface 5

6. Status of the prototype box New autoclave for panel preparation now available at CERN allows for panel preparation under pressure, which provides better results max, width possible is 1m, max length 2.5m, sufficient for UT box 6

7. Beam Pipe interface based on Polymer Subject of Master thesis of Oscar, who meanwhile finished  The evaluation and optimization of the plug has only started and will continue 7

8. 8 This design has the advantage to be -simpler -less radiation length -better gas tightness  we will evaluate it with the prototype

9. Scintillating Fibre Tracker Christian, Robert: Fibre R&D, procurement and QC Project management (C. Joram) 9 6 m cleaner LN 3015 AccuScan 6400 cladding Test NI 6009 Fast IO tensioner 50 g unwinding spool 350 mu

10. Scintillating Fibre Tracker Set-up or X-ray irradiation – Finalise box – Prepare infrastructure (electricity, possibly heat removal from chiller) – Assistance during installation and commissioning of x-ray source Fibre quality assurance during pre-series and main supply phase – Support logistics (unpacking, re-packing, shipping of fibres, update database) – Attenuation length tests. Learn method and perform tests routinely – Fibre diameter scanner. Learn to load and start scanner. – Option: The diameter scanner may be equipped with a bump removal station. Learn to operate this tool. – X-ray irradiation. Learn to load and run x-ray set-up.

11. RICH / TORCH Didier, Thierry: Coordination of the HPD operation and maintenance in the RICH detectors Dedicated support, advice and supervision for specific RICH upgrade activities: – QE measurements of MaPMT tubes large-size (2”) tubes recently delivered as part of the pre-series. – Preparatory and running activities of MaPMT system tests dedicated high rate laser light illumination. These tests are essential to assess the MaPMT and readout electronics performance in high occupancy conditions. – Preparatory and running activities for beam test campaigns. Coordination and contribution to TORCH activities at CERN. 11

12. Muon System upgrade  EDR is scheduled for May/June this year  Design work will start this week with CUT student Michal Galka  Early installation (EYETS 2016/2017) for the beam-plug under M2 is considered. Burkhard, Robert, Michal: Simulations have been done to investigate the reduction in occupancy in M2R1: – Change of material from steel (or lead) to tungsten for HCAL and M2 beam-plug – Additional shielding behind HCAL (replace PMT and CW bases by shielding) – Max. possible reduction: -60% -22% (M2 plug) -25%-43% HCAL plug: -25% 12