Technical discussion and brainstorming about SR shielding integration and yoke cooling
Key points from today’s meeting
Cooling:
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The yoke and shielding heat up in different areas; both need cooling.
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A copper cooling plate is the preferred solution, with stainless steel pipes for easier connections. Also, copper plate preferred over aluminium for shielding purposes.
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Embedding pipes in the yoke is not an option.
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Plates-shielding must be accelerator quality and bolted to the yoke with blind holes.
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Demineralized water will circulate through the cooling system.
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Extra cooling might be needed for the shielding inserts.
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The added height from the plate must be checked due to limited space (booster is above).
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BMI will receive the cooling plate design for integration into their models; thermal simulations will follow.
Toxicity & Testing:
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Plan to use radiation-safe paint.
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Creep tests are foreseen.
Support:
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Support will be three points + one central, with no load on the shielding to avoid creep and misalignments.
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Shielding will be bolted to the yoke, which bears the weight.
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SY-STI will provide a conceptual design, and MSC-MME will design the support according to this concepts.
Mockup:
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MSC will build a 2 m prototype dipole, followed by a full-scale version.
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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
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STI: Update the shielding design and share it with MME/MSC.
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MME/MSC: Develop a conceptual support design for the shielding and yoke, sufficient for external suppliers to be involved into the technical design.
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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.
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STI/BMI: Provide energy deposition maps as requested by STI/TCD, including the cooling plate supplied by TCD.
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MSC: Collaborate with STI to produce a mockup dipole that can be integrated with the shielding.