1 1. EMR production status 2. EMR simulations (FEA studies) 3. RAL 1. EMR production status 2. EMR simulations (FEA studies) 3. RAL Teleconf. January 21, 2010 Progress status of EMR Assembly University of Geneva: A.Blondel, J-S Graulich, V.Verguilov, Coralie Husi, F.Masciocchi, L.Nicola, R.Bloch, N.Geisig, P.Béné, F.Cadoux

2 EMR Design & Module M0 prototype KL Movable frame (existing part) EMR EMR features: - 24 modules - 1 module is made of X&Y planes - Nearly 11 km of WLS fibers (1.2mm diam.) - 48 multianode PMT - 48 single pixel PMT - 28 Kg per plane (1,4 Ton totally) As a recall… EMR Outer Box

3 Module M0 prototype FEE has been fixed upright Single pixel PMT Light tight enclosure Support (shielding?) PMT electronics  2 planes X & Y have been assembled in a wooden black box… a good experience to get a better feeling about final schedule …

4 EMR Production status STEP 1: Bar cutting to length almost completed! (from 3.5mm to 1.1m) Nicolas & Laurent

5 EMR Production status STEP 2: Fine milling of the bars (1100 +/-0.1mm)…on going at MECATEST in Geneva (sub contrator). 2 batches remaining (due date: first week of February). This includes: milling, drilling (for glue injection) and tapping (for insert fixation)

6 The full production of fiber gluing will start soon (within a week or so). The pace will be 20 complete gluing per day (already challenging!!) That means: - 1 plane per week (or 2 modules per month) - 2 modules to be tested per month … looks feasible (manpower is not sufficient to speed it up) Based on the 1rst Module 0, it’s achievable but without any margin! EMR Production status (tentative schedule) STEP 3: Gluing and fiber insertion (all the inserts in aluminum are ready for assembly)… right after the white painting of the bar ends (done in one go) insert White paint not shown here

7 Ongoing, are 2 different studies: -One from Ghislain Gregoire on Magnetic shielding (by OPERA), -One from F.Cadoux about mechanical behaviour (sagging, stresses… in order to size the EMR Outer Box properly. EMR simulations (FEA studies) 3D IGES model of the all shielding FEA model of the whole EMR Meshing without covering plates

8 EMR simulations (FEA studies) Sagging and stresses look OK (60x60mmx3mm cross section beams). It showed the need of reinforcing the 4 corners (connections between modules) by means of aluminum corner beams. Several configurations studied: - Transportion loads (horizontal) - Rotation to get it RAL - 1G Loading when vertical (in situ) Worst case study: No side panels, No end plates (Top and bottom) Slings for Handling (used for rotation)

9 Building/platform issues EMR RAL EMR Box Thanks to Tim for the « environnement » STEP file…

10 EMR RAL EMR Box Building/platform issues (close up on EMR…we need about 1800mmx1800mmx1000mm) 1000 mm 1800 mm

11 Building/platform issues (seen from one side…) EMR RAL EMR Box EMR active part 815 mm Could it be modified or removed? Trolley 500mm 310mm Cable tray

12 Building/platform issues (seen from the Top…) EMR RAL EMR Box EMR active part Platform edge 1800mm

13 Building/platform issues (seen from the Top…) EMR RAL EMR Box EMR active part Platform edge 1800mm Useful to anticipate/accomodate with crane works (sling fixations, rotations, mouvements,…)

14 Building/platform issues (anticipation / differents STEPS of MICE) EMR RAL EMR Box The EMR Outer Box will comply with the differents STEPS (moving downstream) So, we have to work closely with Tim, Andy,… to make sure that no interference with platform occurs…anytime! CAD works first and soon (to freeze the Outer Box) STEP xx STEP yy