CERN Technical Student Placement

Despite all the skiing I documented during my year, I also did manage to get plenty of work done!

Courtesy of Karol Rapacz, here is a short video explaining what the HGcal team are working on at CERN

I was involved in two major projects at CERN. I was responsible for designing and manufacturing a 1:1 scale integration model of part of the detector for cooling and testing purposes. My tasks included:

  • Ensuring services can be routed in given space
  • Installation sequence of cooling pipes, services and thermal screen (troubleshooting)
  • Thermal screen integration model consideration
  • Mock rotation and transport sequence tasks
  • Creation of CAD designs
  • FEA analysis structural integrity
  • 2D technical drawings
  • Liaising with manufacturer and developing construction sequence

Photos Courtesy of Karol Rapacz

Alongside this, I co-designed the services feedthrough design proposal for the HGCAL Endcap for the Phase 2 LHC. My roles for this project included:

  • Service feedthrough methods and sealing functions
  • Routing of services inside cold volume (compatible with assembly sequence layer by layer, and optical and CO2 installed last)
  • Routing of services outside the cold volume into the cable channels on top of the endcap nose brackets
  • Packing factor of cables and layout efficiency
  • Connector options
  • Heat transfer calculations and simulations experience based on copper cross section and feedthrough materials

Culminating in a 3D CAD model integrated into the master CMS HGCal assembly as seen below

Master CAD Assembly

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