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Technical discussion and brainstorming about SR shielding integration and yoke cooling

Europe/Zurich
864/2-D17 (CERN)

864/2-D17

CERN

12
Show room on map

Key points from today’s meeting

Cooling:

  • The yoke and shielding heat up in different areas; both need cooling.

  • A copper cooling plate is the preferred solution, with stainless steel pipes for easier connections. Also, copper plate preferred over aluminium for shielding purposes.

  • Embedding pipes in the yoke is not an option.

  • Plates-shielding must be accelerator quality and bolted to the yoke with blind holes.

  • Demineralized water will circulate through the cooling system.

  • Extra cooling might be needed for the shielding inserts.

  • The added height from the plate must be checked due to limited space (booster is above).

  • BMI will receive the cooling plate design for integration into their models; thermal simulations will follow.

Toxicity & Testing:

  • Plan to use radiation-safe paint.

  • Creep tests are foreseen.

Support:

  • Support will be three points + one central, with no load on the shielding to avoid creep and misalignments.

  • Shielding will be bolted to the yoke, which bears the weight.

  • SY-STI will provide a conceptual design, and MSC-MME will design the support according to this concepts.

Mockup:

  • MSC will build a 2 m prototype dipole, followed by a full-scale version.

  • Once shielding is ready, it will be tested with the dipole yoke and vacuum chamber, involving all stakeholders.

  • STI will ask for external support for the mockup shielding design, in order to optimize the shielding design beyond our expertise.

 

ACTIONS

  • STI: Update the shielding design and share it with MME/MSC.

  • MME/MSC: Develop a conceptual support design for the shielding and yoke, sufficient for external suppliers to be involved into the technical design.

  • STI/TCD: Deliver the shielding design, including cooling plates, for beam energy deposition studies. Define the required simulations and iterate thermomechanical analyses to optimize cooling performance.

  • STI/BMI: Provide energy deposition maps as requested by STI/TCD, including the cooling plate supplied by TCD.

  • MSC: Collaborate with STI to produce a mockup dipole that can be integrated with the shielding.

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