Baby-MIND Modules & Services Mechanical Design Assembly Mode Integration on Armco magnet Cabling Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Mechanical Design (in a few words) Each module contains (18 modules in total…!!): 95 horizontal scintillating bars, 16 vertical scintillating bars and is constructed as a sandwich (the scintillating bars are inside 2 aluminum plates fixed on an aluminum frame and protected as in a turtle shell) Every scintillating bars are read out by SiPM on either sides (except for vertical bars). Modules are built in 2 parts (symmetrical). The position of the scintillating bars in each part of the module makes a cross like a trigger. Precise pitch between bars is defined by plastic spacers (see next..). Spacers simultaneously position the horizontal and vertical bars on each module part. The two parts of the module are also offset to have more surface detection. SiPM and interface wiring are also protected on 2 sides + Top by aluminum covers (compact design), and also for a safe and easy handling. Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Module Back part (Magnet side) Contains 48 scintillating horizontal bars + 8 scintillating vertical bars. Aluminium Frame and reinforcements PCB Electronic board Covers Vertical scintillating bars Horizontal scintillating bars Spacers Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Module Front part (Beam side) Contains 47 scintillating horizontal bars + 8 scintillating vertical bars. Holes for PCB Electronic board fixation Aluminium Frame and reinforcements Horizontal scintillating bars Spacers Stoppers (top and bottom) to prevent vertical sagging… Vertical scintillating bars Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Complete Module (Both back+front assembled) Aluminium plate (same for 2 parts) Module Front part Fixation holes on Armco magnet (4 corners) Module Back part Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Assembly Mode in a few steps… 3 identical assembly stands with counterweight on the craddle + Rotation system (every 45 degrees increments). Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016 Step 1 (same process for both back and front parts) Aluminium frame assembly, Plastic spacers and Aluminium plate on the back. 45 ° orientation (to secure the assembly) Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016 Step 2 (same process for the back and the front parts) Half module frame Transfert on another assembly structure + Scintillating bars insertion (first, the vertical ones, then the horizontal ones…). Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016 Step 3 (same process for both back and front parts) Insert the inner reinforcements. Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016 Step 4 2 parts of module assembled and bolted together with braces (spacer …) Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

The Baby-MIND module prototype in words… The mechanical module in a few numbers 222 SiPM and connectors 95 horizontal scintillating bars 16 vertical scintillationg bars 6 reinforcements 16 plastic spacers 2 aluminium plate 8 aluminium flat bar for the frame 18 stoppers 14 braces 3 pairs of cover 926 screws ~200Kg without cables and electronics Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Integration on Armco magnet Step 1 Lift the wooden plate with Module after bottom structure is disassembled Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016 Final step Fix the module on the Armco magnet with 4 M10 screws on the interface corner and sustain the bottom side of module by 3 ball joint screws. Nice object… Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Module Cabling and Crates Mini Crate Module inner cabling Outer cabling (5 to 6m long MAX) Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016 Module inner Cabling (horizontal bars) Top cover removed for clarity Maxi lenght (CAD) is about 310mm … Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016 Module inner Cabling (Vertical bars) Top cover removed for clarity Maxi lenght is about 350mm … Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016 Module inner Cabling (more details… ) PCB for cable soldering +… PCB for cable soldering +… EMI shielding box EMI clamp + Mechanical clamp Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016

Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016 Mini Crate design (based on standard crates…) 7 slots foreseen (in case…) Tricky part Laurent NICOLA / Franck CADOUX CERN meeting November 3, 2016